![Rose grown from tissue culture](https://upload.wikimedia.org/wikipedia/commons/9/9d/Rose_grown_from_tissue_culture.jpg)
Biotechnology is the integration of
natural sciences and
engineering sciences
Engineering physics, or engineering science, refers to the study of the combined disciplines of physics, mathematics, chemistry, biology, and engineering, particularly computer, nuclear, electrical, electronic, aerospace, materials or mechanical en ...
in order to achieve the application of organisms, cells, parts thereof and molecular analogues for products and services. The term ''biotechnology'' was first used by
Károly Ereky in 1919, meaning the production of products from raw materials with the aid of living organisms.
Definition
The concept of biotechnology encompasses a wide range of procedures for modifying living organisms according to human purposes, going back to
domestication of animals, cultivation of the plants, and "improvements" to these through breeding programs that employ
artificial selection
Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant m ...
and
hybridization
Hybridization (or hybridisation) may refer to:
*Hybridization (biology), the process of combining different varieties of organisms to create a hybrid
*Orbital hybridization, in chemistry, the mixing of atomic orbitals into new hybrid orbitals
*Nu ...
. Modern usage also includes
genetic engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
as well as
cell and
tissue culture technologies. The
American Chemical Society defines biotechnology as the application of biological organisms, systems, or processes by various industries to learning about the science of life and the improvement of the value of materials and organisms such as pharmaceuticals, crops, and livestock. As per the
European Federation of Biotechnology
The European Federation of Biotechnology (EFB) was established by European scientists in 1978. It is a non-profit federation of national biotechnology associations, learned societies, universities, scientific institutes, biotechnology companies ...
, biotechnology is the integration of natural science and organisms, cells, parts thereof, and molecular analogues for products and services. Biotechnology is based on the
basic
BASIC (Beginners' All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages designed for ease of use. The original version was created by John G. Kemeny and Thomas E. Kurtz at Dartmouth College ...
biological sciences (e.g.,
molecular biology,
biochemistry,
cell biology
Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells. All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and ...
,
embryology,
genetics,
microbiology
Microbiology () is the scientific study of microorganisms, those being unicellular (single cell), multicellular (cell colony), or acellular (lacking cells). Microbiology encompasses numerous sub-disciplines including virology, bacteriology, prot ...
) and conversely provides methods to support and perform basic research in biology.
Biotechnology is the
research and development
Research and development (R&D or R+D), known in Europe as research and technological development (RTD), is the set of innovative activities undertaken by corporations or governments in developing new services or products, and improving existi ...
in the
laboratory using
bioinformatics
Bioinformatics () is an interdisciplinary field that develops methods and software tools for understanding biological data, in particular when the data sets are large and complex. As an interdisciplinary field of science, bioinformatics combi ...
for exploration, extraction, exploitation, and production from any
living organisms and any source of
biomass
Biomass is plant-based material used as a fuel for heat or electricity production. It can be in the form of wood, wood residues, energy crops, agricultural residues, and waste from industry, farms, and households. Some people use the terms bi ...
by means of
biochemical engineering where high value-added products could be planned (reproduced by
biosynthesis
Biosynthesis is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined to form macromolecules. ...
, for example), forecasted, formulated, developed, manufactured, and marketed for the purpose of sustainable operations (for the return from bottomless initial investment on R & D) and gaining durable patents rights (for exclusives rights for sales, and prior to this to receive national and international approval from the results on animal experiment and human experiment, especially on the
pharmaceutical branch of biotechnology to prevent any undetected side-effects or safety concerns by using the products). The utilization of biological processes,
organisms or systems to produce products that are anticipated to improve human lives is termed biotechnology.
By contrast,
bioengineering
Biological engineering or
bioengineering is the application of principles of biology and the tools of engineering to create usable, tangible, economically-viable products. Biological engineering employs knowledge and expertise from a number o ...
is generally thought of as a related field that more heavily emphasizes higher systems approaches (not necessarily the altering or using of biological materials ''directly'') for interfacing with and utilizing living things. Bioengineering is the application of the principles of
engineering and natural sciences to tissues, cells, and molecules. This can be considered as the use of knowledge from working with and manipulating biology to achieve a result that can improve functions in plants and animals. Relatedly,
biomedical engineering is an overlapping field that often draws upon and applies ''biotechnology'' (by various definitions), especially in certain sub-fields of biomedical or
chemical engineering such as
tissue engineering,
biopharmaceutical engineering, and
genetic engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
.
History
![The Brewer designed and engraved in the Sixteenth](https://upload.wikimedia.org/wikipedia/commons/2/24/The_Brewer_designed_and_engraved_in_the_Sixteenth._Century_by_J_Amman.png)
Although not normally what first comes to mind, many forms of human-derived
agriculture clearly fit the broad definition of "'utilizing a biotechnological system to make products". Indeed, the cultivation of plants may be viewed as the earliest biotechnological enterprise.
Agriculture has been theorized to have become the dominant way of producing food since the
Neolithic Revolution
The Neolithic Revolution, or the (First) Agricultural Revolution, was the wide-scale transition of many human cultures during the Neolithic period from a lifestyle of hunting and gathering to one of agriculture and settlement, making an incre ...
. Through early biotechnology, the earliest farmers selected and bred the best-suited crops (e.g., those with the highest yields) to produce enough food to support a growing population. As crops and fields became increasingly large and difficult to maintain, it was discovered that specific organisms and their by-products could effectively
fertilize
Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Proce ...
,
restore nitrogen, and
control pests. Throughout the history of agriculture, farmers have inadvertently altered the genetics of their crops through introducing them to new environments and
breeding
Breeding is sexual reproduction that produces offspring, usually animals or plants. It can only occur between a male and a female animal or plant.
Breeding may refer to:
* Animal husbandry, through selected specimens such as dogs, horses, and rab ...
them with other plants — one of the first forms of biotechnology.
These processes also were included in early
fermentation
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food ...
of
beer. These processes were introduced in early
Mesopotamia,
Egypt,
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
and
India, and still use the same basic biological methods. In
brewing
Brewing is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley) in water and #Fermenting, fermenting the resulting sweet liquid with Yeast#Beer, yeast. It may be done in a brewery ...
, malted grains (containing
enzymes) convert starch from grains into sugar and then adding specific
yeasts to produce beer. In this process,
carbohydrates in the grains broke down into alcohols, such as ethanol. Later, other cultures produced the process of
lactic acid fermentation
Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars (also, disaccharides of six-carbon sugars, e.g. sucrose or lactose) are converted into cellular energy and the metabolite lactate, which is lactic acid ...
, which produced other preserved foods, such as
soy sauce
Soy sauce (also called simply soy in American English and soya sauce in British English) is a liquid condiment of Chinese origin, traditionally made from a fermented paste of soybeans, roasted grain, brine, and '' Aspergillus oryzae'' or ''Asp ...
. Fermentation was also used in this time period to produce
leavened bread. Although the process of fermentation was not fully understood until
Louis Pasteur
Louis Pasteur (, ; 27 December 1822 – 28 September 1895) was a French chemist and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization, the latter of which was named afte ...
's work in 1857, it is still the first use of biotechnology to convert a food source into another form.
Before the time of
Charles Darwin's work and life, animal and plant scientists had already used selective breeding. Darwin added to that body of work with his scientific observations about the ability of science to change species. These accounts contributed to Darwin's theory of natural selection.
For thousands of years, humans have used selective breeding to improve the production of crops and livestock to use them for food. In selective breeding, organisms with desirable characteristics are mated to produce offspring with the same characteristics. For example, this technique was used with corn to produce the largest and sweetest crops.
In the early twentieth century scientists gained a greater understanding of
microbiology
Microbiology () is the scientific study of microorganisms, those being unicellular (single cell), multicellular (cell colony), or acellular (lacking cells). Microbiology encompasses numerous sub-disciplines including virology, bacteriology, prot ...
and explored ways of manufacturing specific products. In 1917,
Chaim Weizmann first used a pure microbiological culture in an industrial process, that of manufacturing
corn starch
Corn starch, maize starch, or cornflour (British English) is the starch derived from corn (maize) grain. The starch is obtained from the endosperm of the kernel. Corn starch is a common food ingredient, often used to thicken sauces or sou ...
using ''
Clostridium acetobutylicum,'' to produce
acetone, which the
United Kingdom desperately needed to manufacture
explosive
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An expl ...
s during
World War I.
Biotechnology has also led to the development of antibiotics. In 1928,
Alexander Fleming
Sir Alexander Fleming (6 August 1881 – 11 March 1955) was a Scottish physician and microbiologist, best known for discovering the world's first broadly effective antibiotic substance, which he named penicillin. His discovery in 1928 of w ...
discovered the mold ''
Penicillium''. His work led to the purification of the antibiotic compound formed by the mold by Howard Florey, Ernst Boris Chain and Norman Heatley – to form what we today know as
penicillin
Penicillins (P, PCN or PEN) are a group of β-lactam antibiotics originally obtained from ''Penicillium'' moulds, principally '' P. chrysogenum'' and '' P. rubens''. Most penicillins in clinical use are synthesised by P. chrysogenum using ...
. In 1940, penicillin became available for medicinal use to treat bacterial infections in humans.
The field of modern biotechnology is generally thought of as having been born in 1971 when Paul Berg's (Stanford) experiments in gene splicing had early success.
Herbert W. Boyer (Univ. Calif. at San Francisco) and
Stanley N. Cohen
Stanley Norman Cohen (born February 17, 1935) is an American geneticist and the Kwoh-Ting Li Professor in the Stanford University School of Medicine. Stanley Cohen and Herbert Boyer were the first scientists to transplant genes from one livin ...
(Stanford) significantly advanced the new technology in 1972 by transferring genetic material into a bacterium, such that the imported material would be reproduced. The commercial viability of a biotechnology industry was significantly expanded on June 16, 1980, when the
United States Supreme Court ruled that a
genetically modified microorganism could be
patented in the case of ''
Diamond v. Chakrabarty
''Diamond v. Chakrabarty'', 447 U.S. 303 (1980), was a United States Supreme Court case dealing with whether living organisms can be patented. Writing for a five-justice majority, Chief Justice Warren E. Burger held that human-made bacteria could ...
''.
[Diamond v. Chakrabarty, 447 U.S. 303 (1980). No. 79-139]
" '' United States Supreme Court.'' June 16, 1980. Retrieved on May 4, 2007. Indian-born
Ananda Chakrabarty
Ananda Mohan Chakrabarty ( bn, আনন্দমোহন চক্রবর্তী ''Ānandamōhan Cakrabartī''), PhD (4 April 1938 – 10 Jul 2020) was an Bengali American, Indian American microbiologist, scientist, and researcher, most n ...
, working for
General Electric, had modified a bacterium (of the genus ''
Pseudomonas'') capable of breaking down crude oil, which he proposed to use in treating oil spills. (Chakrabarty's work did not involve gene manipulation but rather the transfer of entire organelles between strains of the ''Pseudomonas'' bacterium).
The
MOSFET
The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of field-effect transistor (FET), most commonly fabricated by the controlled oxidation of silicon. It has an insulated gate, the voltage of which d ...
(metal-oxide-semiconductor field-effect transistor) was invented by
Mohamed M. Atalla
Mohamed M. Atalla ( ar, محمد عطاالله; August 4, 1924 – December 30, 2009) was an Egyptian-American engineer, physicist, cryptographer, inventor and entrepreneur. He was a semiconductor pioneer who made important contributions to ...
and
Dawon Kahng in 1959.
Two years later,
Leland C. Clark and Champ Lyons invented the first
biosensor in 1962.
Biosensor MOSFETs were later developed, and they have since been widely used to measure
physical
Physical may refer to:
*Physical examination
In a physical examination, medical examination, or clinical examination, a medical practitioner examines a patient for any possible medical signs or symptoms of a medical condition. It generally co ...
,
chemical,
biological
Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary in ...
and
environmental
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scale f ...
parameters.
The first BioFET was the
ion-sensitive field-effect transistor (ISFET), invented by
Piet Bergveld in 1970.
It is a special type of MOSFET,
where the
metal gate is replaced by an
ion-sensitive
membrane,
electrolyte
An electrolyte is a medium containing ions that is electrically conducting through the movement of those ions, but not conducting electrons. This includes most soluble salts, acids, and bases dissolved in a polar solvent, such as water. Upon dis ...
solution and
reference electrode
A reference electrode is an electrode which has a stable and well-known electrode potential. The high stability of the electrode potential is usually reached by employing a redox system with constant (buffered or saturated) concentrations of each ...
.
The ISFET is widely used in
biomedical
Biomedicine (also referred to as Western medicine, mainstream medicine or conventional medicine) applications, such as the detection of
DNA hybridization,
biomarker detection from
blood,
antibody detection,
glucose measurement,
pH sensing, and
genetic technology
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
.
By the mid-1980s, other BioFETs had been developed, including the
gas sensor
A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of ...
FET (GASFET),
pressure sensor
A pressure sensor is a device for pressure measurement of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area. A pressure sensor usually act ...
FET (PRESSFET),
chemical field-effect transistor (ChemFET),
reference ISFET (REFET), enzyme-modified FET (ENFET) and immunologically modified FET (IMFET).
By the early 2000s, BioFETs such as the
DNA field-effect transistor A DNA field-effect transistor (DNAFET) is a field-effect transistor which uses the field-effect due to the partial charges of DNA molecules to function as a biosensor. The structure of DNAFETs is similar to that of MOSFETs, with the exception of th ...
(DNAFET),
gene-modified FET (GenFET) and
cell-potential BioFET (CPFET) had been developed.
A factor influencing the biotechnology sector's success is improved intellectual property rights legislation—and enforcement—worldwide, as well as strengthened demand for medical and pharmaceutical products to cope with an ageing, and ailing,
U.S. population.
Rising demand for biofuels is expected to be good news for the biotechnology sector, with the
Department of Energy estimating
ethanol usage could reduce U.S. petroleum-derived fuel consumption by up to 30% by 2030. The biotechnology sector has allowed the U.S. farming industry to rapidly increase its supply of corn and soybeans—the main inputs into biofuels—by developing genetically modified seeds that resist pests and drought. By increasing farm productivity, biotechnology boosts biofuel production.
Examples
Biotechnology has applications in four major industrial areas, including health care (medical), crop production and agriculture, non-food (industrial) uses of crops and other products (e.g.,
biodegradable plastic
Biodegradable plastics are plastics that can be decomposed by the action of living organisms, usually microbes, into water, carbon dioxide, and biomass. Biodegradable plastics are commonly produced with renewable raw materials, micro-organisms, ...
s,
vegetable oil,
biofuel
Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels, such as oil. According to the United States Energy Information Administration (E ...
s), and
environmental
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scale f ...
uses.
For example, one application of biotechnology is the directed use of
microorganisms for the manufacture of organic products (examples include
beer and
milk products). Another example is using naturally present
bacteria by the mining industry in
bioleaching. Biotechnology is also used to recycle, treat waste, clean up sites contaminated by industrial activities (
bioremediation), and also to produce
biological weapons.
A series of derived terms have been coined to identify several branches of biotechnology, for example:
*
Bioinformatics
Bioinformatics () is an interdisciplinary field that develops methods and software tools for understanding biological data, in particular when the data sets are large and complex. As an interdisciplinary field of science, bioinformatics combi ...
(also called "gold biotechnology") is an interdisciplinary field that addresses biological problems using computational techniques, and makes the rapid organization as well as analysis of biological data possible. The field may also be referred to as ''
computational biology
Computational biology refers to the use of data analysis, mathematical modeling and computational simulations to understand biological systems and relationships. An intersection of computer science, biology, and big data, the field also has fo ...
'', and can be defined as, "conceptualizing biology in terms of molecules and then applying informatics techniques to understand and organize the information associated with these molecules, on a large scale".
[Gerstein, M.]
Bioinformatics Introduction
." '' Yale University.'' Retrieved on May 8, 2007. Bioinformatics plays a key role in various areas, such as
functional genomics,
structural genomics, and
proteomics
Proteomics is the large-scale study of proteins. Proteins are vital parts of living organisms, with many functions such as the formation of structural fibers of muscle tissue, enzymatic digestion of food, or synthesis and replication of DNA. In ...
, and forms a key component in the biotechnology and pharmaceutical sector.
[Siam, R. (2009). Biotechnology Research and Development in Academia: providing the foundation for Egypt's Biotechnology spectrum of colors. Sixteenth Annual American University in Cairo Research Conference, American University in Cairo, Cairo, Egypt. BMC Proceedings, 31–35.]
* Blue biotechnology is based on the exploitation of sea resources to create products and industrial applications.
This branch of biotechnology is the most used for the industries of refining and combustion principally on the production of
bio-oils with photosynthetic micro-algae.
[Biotech: true colours. (2009). TCE: The Chemical Engineer, (816), 26–31.]
* Green biotechnology is biotechnology applied to agricultural processes. An example would be the selection and domestication of plants via
micropropagation. Another example is the designing of
transgenic plant
Genetically modified plants have been engineered for scientific research, to create new colours in plants, deliver vaccines, and to create enhanced crops. Plant genomes can be engineered by physical methods or by use of ''Agrobacterium'' for the ...
s to grow under specific environments in the presence (or absence) of chemicals. One hope is that green biotechnology might produce more environmentally friendly solutions than traditional
industrial agriculture. An example of this is the engineering of a plant to express a
pesticide
Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampri ...
, thereby ending the need of external application of pesticides. An example of this would be
Bt corn
Genetically modified maize (corn) is a genetically modified crop. Specific maize strains have been genetically engineered to express agriculturally-desirable traits, including resistance to pests and to herbicides. Maize strains with both trait ...
. Whether or not green biotechnology products such as this are ultimately more environmentally friendly is a topic of considerable debate.
[Kafarski, P. (2012)]
Rainbow Code of Biotechnology
. CHEMIK. Wroclaw University It is commonly considered as the next phase of green revolution, which can be seen as a platform to eradicate world hunger by using technologies which enable the production of more fertile and resistant, towards
biotic
Biotics describe living or once living components of a community; for example organisms, such as animals and plants.
Biotic may refer to:
*Life, the condition of living organisms
*Biology, the study of life
* Biotic material, which is derived from ...
and
abiotic stress, plants and ensures application of environmentally friendly fertilizers and the use of biopesticides, it is mainly focused on the development of agriculture.
On the other hand, some of the uses of green biotechnology involve
microorganisms to clean and reduce waste.
* Red biotechnology is the use of biotechnology in the medical and
pharmaceutical industries, and health preservation.
This branch involves the production of
vaccines and
antibiotic
An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of ...
s, regenerative therapies, creation of artificial organs and new diagnostics of diseases.
As well as the development of
hormones
A hormone (from the Ancient Greek, Greek participle , "setting in motion") is a class of cell signaling, signaling molecules in multicellular organisms that are sent to distant organs by complex biological processes to regulate physiology and beh ...
,
stem cells,
antibodies
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the ...
, siRNA and
diagnostic tests
A medical test is a medical procedure performed to screening (medicine), detect, medical diagnosis, diagnose, or monitoring (medicine), monitor diseases, disease processes, susceptibility, or to determine a course of treatment. Medical tests suc ...
.
* White biotechnology, also known as industrial biotechnology, is biotechnology applied to
industrial
Industrial may refer to:
Industry
* Industrial archaeology, the study of the history of the industry
* Industrial engineering, engineering dealing with the optimization of complex industrial processes or systems
* Industrial city, a city dominate ...
processes. An example is the designing of an organism to produce a useful chemical. Another example is the using of
enzymes as industrial
catalysts to either produce valuable chemicals or destroy hazardous/polluting chemicals. White biotechnology tends to consume less in resources than traditional processes used to produce industrial goods.
[Frazzetto, G. (2003)]
White biotechnology
. March 21, 2017, de EMBOpress Sitio
* "Yellow biotechnology" refers to the use of biotechnology in food production (
food industry
The food industry is a complex, global network of diverse businesses that supplies most of the food consumed by the world's population. The food industry today has become highly diversified, with manufacturing ranging from small, traditiona ...
), for example in making wine (
winemaking), cheese (
cheesemaking
Cheesemaking (or caseiculture) is the craft of making cheese. The production of cheese, like many other food preservation processes, allows the nutritional and economic value of a food material, in this case milk, to be preserved in concentrat ...
), and beer (
brewing
Brewing is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley) in water and #Fermenting, fermenting the resulting sweet liquid with Yeast#Beer, yeast. It may be done in a brewery ...
) by
fermentation
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food ...
.
It has also been used to refer to biotechnology applied to insects. This includes biotechnology-based approaches for the control of harmful insects, the characterisation and utilisation of active ingredients or genes of insects for research, or application in agriculture and medicine and various other approaches.
[Advances in Biochemical Engineering/Biotechnology](_blank)
Volume 135 2013, Yellow Biotechnology I
* Gray biotechnology is dedicated to environmental applications, and focused on the maintenance of
biodiversity and the remotion of pollutants.
* Brown biotechnology is related to the management of arid lands and
desert
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on ...
s. One application is the creation of enhanced seeds that resist extreme
environmental conditions
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scal ...
of arid regions, which is related to the innovation, creation of agriculture techniques and management of resources.
* Violet biotechnology is related to law, ethical and philosophical issues around biotechnology.
* Dark biotechnology is the color associated with
bioterrorism or
biological weapons and biowarfare which uses microorganisms, and toxins to cause diseases and death in humans, livestock and crops.
Medicine
In medicine, modern biotechnology has many applications in areas such as
pharmaceutical drug discoveries and production,
pharmacogenomics, and genetic testing (or
genetic screening).
Pharmacogenomics (a combination of
pharmacology
Pharmacology is a branch of medicine, biology and pharmaceutical sciences concerned with drug or medication action, where a drug may be defined as any artificial, natural, or endogenous (from within the body) molecule which exerts a biochemica ...
and
genomics
Genomics is an interdisciplinary field of biology focusing on the structure, function, evolution, mapping, and editing of genomes. A genome is an organism's complete set of DNA, including all of its genes as well as its hierarchical, three-dim ...
) is the technology that analyses how genetic makeup affects an individual's response to drugs. Researchers in the field investigate the influence of
genetic variation on drug responses in patients by correlating
gene expression
Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect. The ...
or
single-nucleotide polymorphisms with a drug's
efficacy
Efficacy is the ability to perform a task to a satisfactory or expected degree. The word comes from the same roots as ''effectiveness'', and it has often been used synonymously, although in pharmacology a pragmatic clinical trial#Efficacy versu ...
or
toxicity.
The purpose of pharmacogenomics is to develop rational means to optimize drug therapy, with respect to the patients'
genotype
The genotype of an organism is its complete set of genetic material. Genotype can also be used to refer to the alleles or variants an individual carries in a particular gene or genetic location. The number of alleles an individual can have in a ...
, to ensure maximum efficacy with minimal
adverse effects.
Such approaches promise the advent of "
personalized medicine"; in which drugs and drug combinations are optimized for each individual's unique genetic makeup.
![InsulinHexamer](https://upload.wikimedia.org/wikipedia/commons/0/0d/InsulinHexamer.jpg)
Biotechnology has contributed to the discovery and manufacturing of traditional
small molecule pharmaceutical drugs as well as drugs that are the product of biotechnology –
biopharmaceutics. Modern biotechnology can be used to manufacture existing medicines relatively easily and cheaply. The first genetically engineered products were medicines designed to treat human diseases. To cite one example, in 1978
Genentech
Genentech, Inc., is an American biotechnology corporation headquartered in South San Francisco, California. It became an independent subsidiary of Roche in 2009. Genentech Research and Early Development operates as an independent center within R ...
developed synthetic humanized
insulin
Insulin (, from Latin ''insula'', 'island') is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the ''INS'' gene. It is considered to be the main anabolic hormone of the body. It regulates the metabolism o ...
by joining its gene with a
plasmid
A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. They are most commonly found as small circular, double-stranded DNA molecules in bacteria; how ...
vector inserted into the bacterium ''
Escherichia coli''. Insulin, widely used for the treatment of diabetes, was previously extracted from the pancreas of
abattoir animals (cattle or pigs). The genetically engineered bacteria are able to produce large quantities of synthetic human insulin at relatively low cost.
[U.S. Department of State International Information Programs, "Frequently Asked Questions About Biotechnology", USIS Online; available fro]
USinfo.state.gov
, accessed September 13, 2007. Cf. Biotechnology has also enabled emerging therapeutics like
gene therapy. The application of biotechnology to basic science (for example through the
Human Genome Project
The Human Genome Project (HGP) was an international scientific research project with the goal of determining the base pairs that make up human DNA, and of identifying, mapping and sequencing all of the genes of the human genome from both a ...
) has also dramatically improved our understanding of
biology and as our scientific knowledge of normal and disease biology has increased, our ability to develop new medicines to treat previously untreatable diseases has increased as well.
[
]Genetic testing
Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression, or ...
allows the genetic diagnosis of vulnerabilities to inherited diseases
A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not immediately due to any external injury. Diseases are often known to be medical conditions that ar ...
, and can also be used to determine a child's parentage (genetic mother and father) or in general a person's ancestry
An ancestor, also known as a forefather, fore-elder or a forebear, is a parent or (recursively) the parent of an antecedent (i.e., a grandparent, great-grandparent, great-great-grandparent and so forth). ''Ancestor'' is "any person from whom ...
. In addition to studying chromosomes to the level of individual genes, genetic testing in a broader sense includes biochemical
Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology an ...
tests for the possible presence of genetic diseases, or mutant forms of genes associated with increased risk of developing genetic disorders. Genetic testing identifies changes in chromosomes, genes, or proteins. Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person's chance of developing or passing on a genetic disorder. As of 2011 several hundred genetic tests were in use. Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling
Genetic counseling is the process of investigating individuals and families affected by or at risk of genetic disorders to help them understand and adapt to the medical, psychological and familial implications of genetic contributions to disease; t ...
.
Agriculture
Genetically modified crops
Genetically modified crops (GM crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. Plant genomes can be engineered by physical methods or by use of ''Agrobacterium'' for the delivery of ...
("GM crops", or "biotech crops") are plants used in agriculture, the DNA of which has been modified with genetic engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
techniques. In most cases, the main aim is to introduce a new trait that does not occur naturally in the species. Biotechnology firms can contribute to future food security by improving the nutrition and viability of urban agriculture. Furthermore, the protection of intellectual property rights encourages private sector investment in agrobiotechnology.
Examples in food crops include resistance to certain pests,[Genetically Altered Potato Ok'd For Crops](_blank)
Lawrence Journal-World – May 6, 1995 diseases, stressful environmental conditions, resistance to chemical treatments (e.g. resistance to a herbicide
Herbicides (, ), also commonly known as weedkillers, are substances used to control undesired plants, also known as weeds.EPA. February 201Pesticides Industry. Sales and Usage 2006 and 2007: Market Estimates. Summary in press releasMain page fo ...
), reduction of spoilage, or improving the nutrient profile of the crop. Examples in non-food crops include production of pharmaceutical agents, biofuel
Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels, such as oil. According to the United States Energy Information Administration (E ...
s, and other industrially useful goods, as well as for bioremediation.
Farmers have widely adopted GM technology. Between 1996 and 2011, the total surface area of land cultivated with GM crops had increased by a factor of 94, from to 1,600,000 km2 (395 million acres). 10% of the world's crop lands were planted with GM crops in 2010. As of 2011, 11 different transgenic crops were grown commercially on 395 million acres (160 million hectares) in 29 countries such as the US, Brazil, Argentina, India, Canada, China, Paraguay, Pakistan, South Africa, Uruguay, Bolivia, Australia, Philippines, Myanmar, Burkina Faso, Mexico and Spain.
Genetically modified foods are foods produced from organisms that have had specific changes introduced into their DNA with the methods of genetic engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
. These techniques have allowed for the introduction of new crop traits as well as a far greater control over a food's genetic structure than previously afforded by methods such as selective breeding and mutation breeding. Commercial sale of genetically modified foods began in 1994, when Calgene first marketed its Flavr Savr delayed ripening tomato. To date most genetic modification of foods have primarily focused on cash crop
A cash crop or profit crop is an Agriculture, agricultural crop which is grown to sell for profit. It is typically purchased by parties separate from a farm. The term is used to differentiate marketed crops from staple crop (or "subsistence crop") ...
s in high demand by farmers such as soybean, corn
Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. Th ...
, canola, and cotton seed oil
Cottonseed oil is cooking oil from the seeds of cotton plants of various species, mainly ''Gossypium hirsutum'' and ''Gossypium herbaceum'', that are grown for cotton fiber, animal feed, and oil.
Cotton seed has a similar structure to other o ...
. These have been engineered for resistance to pathogens and herbicides and better nutrient profiles. GM livestock have also been experimentally developed; in November 2013 none were available on the market, but in 2015 the FDA approved the first GM salmon for commercial production and consumption.
There is a scientific consensus
Scientific consensus is the generally held judgment, position, and opinion of the majority or the supermajority of scientists in a particular field of study at any particular time.
Consensus is achieved through scholarly communication at confe ...
that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are much less likely than scientists to perceive GM foods as safe. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation.
GM crops also provide a number of ecological benefits, if not used in excess. However, opponents have objected to GM crops per se on several grounds, including environmental concerns, whether food produced from GM crops is safe, whether GM crops are needed to address the world's food needs, and economic concerns raised by the fact these organisms are subject to intellectual property law.
Industrial biotechnology (known mainly in Europe as white biotechnology) is the application of biotechnology for industrial purposes, including industrial fermentation. It includes the practice of using cells
Cell most often refers to:
* Cell (biology), the functional basic unit of life
Cell may also refer to:
Locations
* Monastic cell, a small room, hut, or cave in which a religious recluse lives, alternatively the small precursor of a monastery w ...
such as microorganisms, or components of cells like enzymes, to generate industrially useful products in sectors such as chemicals, food and feed, detergents, paper and pulp, textiles and biofuel
Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels, such as oil. According to the United States Energy Information Administration (E ...
s. In the current decades, significant progress has been done in creating genetically modified organisms (GMOs) that enhance the diversity of applications and economical viability of industrial biotechnology. By using renewable raw materials to produce a variety of chemicals and fuels, industrial biotechnology is actively advancing towards lowering greenhouse gas emissions and moving away from a petrochemical-based economy.
Synthetic biology is considered one of the essential cornerstones in industrial biotechnology due to its financial and sustainable contribution to the manufacturing sector. Jointly biotechnology and synthetic biology play a crucial role in generating cost-effective products with nature-friendly features by using bio-based production instead of fossil-based. Synthetic biology can be used to engineer model microorganisms, such as '' Escherichia coli'', by genome editing tools to enhance their ability to produce bio-based products, such as bioproduction of medicines and biofuel
Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels, such as oil. According to the United States Energy Information Administration (E ...
s. For instance, ''E. coli
''Escherichia coli'' (),Wells, J. C. (2000) Longman Pronunciation Dictionary. Harlow ngland Pearson Education Ltd. also known as ''E. coli'' (), is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus ''Escher ...
'' and '' Saccharomyces cerevisiae'' in a consortium could be used as industrial microbes to produce precursors of the chemotherapeutic agent paclitaxel by applying the metabolic engineering
Metabolic engineering is the practice of optimizing genetic and regulatory processes within cells to increase the cell's production of a certain substance. These processes are chemical networks that use a series of biochemical reactions and enzy ...
in a co-culture approach to exploit the benefits from the two microbes.
Another example of synthetic biology applications in industrial biotechnology is the re-engineering of the metabolic pathways of ''E. coli'' by CRISPR
CRISPR () (an acronym for clustered regularly interspaced short palindromic repeats) is a family of DNA sequences found in the genomes of prokaryotic organisms such as bacteria and archaea. These sequences are derived from DNA fragments of bacte ...
and CRISPRi
CRISPR interference (CRISPRi) is a genetic perturbation technique that allows for sequence-specific repression of gene expression in prokaryotic and eukaryotic cells. It was first developed by Stanley Qi and colleagues in the laboratories of We ...
systems toward the production of a chemical known as 1,4-butanediol
1,4-Butanediol, colloquially known as BD or BDO, is a primary alcohol, and an organic compound, with the formula HOCH2CH2CH2CH2OH. It is a colorless viscous liquid. It is one of four stable isomers of butanediol.
Synthesis
In industrial sy ...
, which is used in fiber manufacturing. In order to produce 1,4-butanediol, the authors alter the metabolic regulation of the ''Escherichia coli'' by CRISPR to induce point mutation in the ''glt''A gene, knockout
A knockout (abbreviated to KO or K.O.) is a fight-ending, winning criterion in several full-contact combat sports, such as boxing, kickboxing, muay thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking, a ...
of the ''sad'' gene, and knock-in six genes (''cat''1, ''suc''D, ''4hbd'', ''cat''2, ''bld'', and ''bdh''). Whereas CRISPRi system used to knockdown
Knockdown or knock-down may refer to:
* Knockdown, a situation in full-contact combat sports where a fighter is down or vulnerable, often preliminary to a knockout
* "Knockdown" (Castle), the thirteenth episode of the third season of the TV serie ...
the three competing genes (''gab''D, ''ybg''C, and ''tes''B) that affect the biosynthesis pathway of 1,4-butanediol. Consequently, the yield of 1,4-butanediol significantly increased from 0.9 to 1.8 g/L.
Environmental
Environmental biotechnology includes various disciplines that play an essential role in reducing environmental waste and providing environmentally safe processes, such as biofiltration
Biofiltration is a pollution control technique using a bioreactor containing living material to capture and biologically degrade pollutants. Common uses include processing waste water, capturing harmful chemicals or silt from surface runoff, and ...
and biodegradation. The environment can be affected by biotechnologies, both positively and adversely. Vallero and others have argued that the difference between beneficial biotechnology (e.g., bioremediation is to clean up an oil spill or hazard chemical leak) versus the adverse effects stemming from biotechnological enterprises (e.g., flow of genetic material from transgenic organisms into wild strains) can be seen as applications and implications, respectively. Cleaning up environmental wastes is an example of an application of environmental biotechnology; whereas loss of biodiversity or loss of containment of a harmful microbe are examples of environmental implications of biotechnology.
Regulation
The regulation of genetic engineering concerns approaches taken by governments to assess and manage the risks
In simple terms, risk is the possibility of something bad happening. Risk involves uncertainty about the effects/implications of an activity with respect to something that humans value (such as health, well-being, wealth, property or the environme ...
associated with the use of genetic engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
technology, and the development and release of genetically modified organisms (GMO), including genetically modified crops
Genetically modified crops (GM crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. Plant genomes can be engineered by physical methods or by use of ''Agrobacterium'' for the delivery of ...
and genetically modified fish
Genetically modified fish (GM fish) are organisms from the taxonomic clade which includes the classes Agnatha (jawless fish), Chondrichthyes (cartilaginous fish) and Osteichthyes (bony fish) whose genetic material ( DNA) has been altered using ge ...
. There are differences in the regulation of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Regulation varies in a given country depending on the intended use of the products of the genetic engineering. For example, a crop not intended for food use is generally not reviewed by authorities responsible for food safety. The European Union differentiates between approval for cultivation within the EU and approval for import and processing. While only a few GMOs have been approved for cultivation in the EU a number of GMOs have been approved for import and processing. The cultivation of GMOs has triggered a debate about the coexistence of GM and non-GM crops. Depending on the coexistence regulations, incentives for the cultivation of GM crops differ.
Learning
In 1988, after prompting from the United States Congress, the National Institute of General Medical Sciences ( National Institutes of Health) (NIGMS) instituted a funding mechanism for biotechnology training. Universities nationwide compete for these funds to establish Biotechnology Training Programs (BTPs). Each successful application is generally funded for five years then must be competitively renewed. Graduate students in turn compete for acceptance into a BTP; if accepted, then stipend, tuition and health insurance support are provided for two or three years during the course of their PhD PHD or PhD may refer to:
* Doctor of Philosophy (PhD), an academic qualification
Entertainment
* '' PhD: Phantasy Degree'', a Korean comic series
* ''Piled Higher and Deeper'', a web comic
* Ph.D. (band), a 1980s British group
** Ph.D. (Ph.D. albu ...
thesis work. Nineteen institutions offer NIGMS supported BTPs. Biotechnology training is also offered at the undergraduate level and in community colleges.
References and notes
External links
Foundation for Biotechnology Awareness and Education
A report on Agricultural Biotechnology
focusing on the impacts of "Green" Biotechnology with a special emphasis on economic aspects. fao.org.
US Economic Benefits of Biotechnology to Business and Society
NOAA Economics, economics.noaa.gov
Database of the Safety and Benefits of Biotechnology
– a database of peer-reviewed scientific papers and the safety and benefits of biotechnology.
What is Biotechnology? – A curated collection of resources about the people, places and technologies that have enabled biotechnology to transform the world we live in today
Applied Food Biotechnology
focusing on disseminate knowledge in all the related areas of biomass, metabolites, biological waste treatment, biotransformation, and bioresource systems analysis, and technologies associated with conversion or production in the field of Food.
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Life sciences industry