Biophysical Chemist
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Biophysical chemistry is a physical science that uses the concepts of physics and physical chemistry for the study of
biological systems A biological system is a complex network which connects several biologically relevant entities. Biological organization spans several scales and are determined based different structures depending on what the system is. Examples of biological syst ...
. The most common feature of the research in this subject is to seek explanation of the various phenomena in biological systems in terms of either the molecules that make up the system or the supra-molecular structure of these systems.


Techniques

Biophysical chemists employ various techniques used in physical chemistry to probe the structure of biological systems. These techniques include spectroscopic methods such as nuclear magnetic resonance (NMR) and other techniques like
X-ray diffraction X-ray crystallography is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. By measuring the angles ...
and cryo-electron microscopy. An example of research in biophysical chemistry includes the work for which the 2009 Nobel Prize in Chemistry was awarded. The prize was based on X-ray crystallographic studies of the
ribosome Ribosomes ( ) are macromolecular machines, found within all cells, that perform biological protein synthesis (mRNA translation). Ribosomes link amino acids together in the order specified by the codons of messenger RNA (mRNA) molecules to ...
that helped to unravel the physical basis of its biological function as a molecular machine that translates mRNA into polypeptides.The Nobel Prize in Chemistry 2009 - Press Release
/ref> Other areas in which biophysical chemists engage themselves are protein structure and the functional structure of
cell membranes The cell membrane (also known as the plasma membrane (PM) or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates and protects the interior of all cells from the outside environment ( ...
. For example, enzyme action can be explained in terms of the shape of a pocket in the protein molecule that matches the shape of the
substrate Substrate may refer to: Physical layers *Substrate (biology), the natural environment in which an organism lives, or the surface or medium on which an organism grows or is attached ** Substrate (locomotion), the surface over which an organism lo ...
molecule or its modification due to binding of a metal ion. The structures of many large protein assemblies, such as
ATP synthase ATP synthase is a protein that catalyzes the formation of the energy storage molecule adenosine triphosphate (ATP) using adenosine diphosphate (ADP) and inorganic phosphate (Pi). It is classified under ligases as it changes ADP by the formation ...
, also exhibit machine-like dynamics as they act on their substrates. Similarly the structure and function of the biomembranes may be understood through the study of model supramolecular structures as
liposomes A liposome is a small artificial Vesicle (biology and chemistry), vesicle, spherical in shape, having at least one lipid bilayer. Due to their hydrophobicity and/or hydrophilicity, biocompatibility, particle size and many other properties, lipo ...
or
phospholipid Phospholipids, are a class of lipids whose molecule has a hydrophilic "head" containing a phosphate group and two hydrophobic "tails" derived from fatty acids, joined by an alcohol residue (usually a glycerol molecule). Marine phospholipids typ ...
vesicles Vesicle may refer to: ; In cellular biology or chemistry * Vesicle (biology and chemistry), a supramolecular assembly of lipid molecules, like a cell membrane * Synaptic vesicle ; In human embryology * Vesicle (embryology), bulge-like features o ...
of different compositions and sizes.


Institutes

The oldest reputed institute for biophysical chemistry is the Max Planck Institute for Biophysical Chemistry in Göttingen.


Journals

Biophysical chemistry journals include '' Biophysical Journal'', ''
Archives of Biochemistry and Biophysics ''Archives of Biochemistry and Biophysics'' is a biweekly peer-reviewed scientific journal that covers research on all aspects of biochemistry and biophysics. It is published by Elsevier and , the editors-in-chief are Paul Fitzpatrick (University o ...
'' (published by Academic Press), '' Biochemical and Biophysical Research Communications'' (Academic Press), ''
Biochimica et Biophysica Acta ''Biochimica et Biophysica Acta'' (''BBA'') is a peer-reviewed scientific journal in the field of biochemistry and biophysics that was established in 1947. The journal is published by Elsevier with a total of 100 annual issues in ten specialised ...
'' ( Elsevier Science), ''Biophysical Chemistry'', ''An International Journal devoted to the Physics and Chemistry of Biological Phenomena'' (Elsevier), ''
Journal of Biochemical and Biophysical Methods The ''Journal of Proteomics'' is a peer-reviewed scientific journal published by Elsevier. It is the official journal of the European Proteomics Association and the editor-in-chief is Juan Calvete. It was established in 1979 as the ''Journal of Bio ...
'' (Elsevier), ''Journal of Biochemistry'', ''Biology and Biophysics'' ( Taylor & Francis), and ''
Journal de Chimie Physique ''Journal de Chimie Physique'' (''JCP'') was a peer-reviewed scientific journal of physical chemistry. It appeared between 1903 until 1999. At the end of the journal's life, it was published by EDP Sciences, who was that the end of the journal w ...
'', ''Physico-Chimie Biologique'' (
EDP Sciences EDP Sciences (Édition Diffusion Presse Sciences) is an STM publisher that specialises scientific information for specialist and more general audiences (general public, decision-makers, teachers, etc.). EDP produces and publishes international ...
and the
Société Française de Chimie Lactalis is a French multinational dairy products corporation, owned by the Besnier family and based in Laval, Mayenne, France. The company's former name was Besnier SA. Lactalis is the largest dairy products group in the world, and is the sec ...
).


See also

*
Biophysical techniques The following outline is provided as an overview of and topical guide to biophysics: Biophysics – interdisciplinary science that uses the methods of physics to study biological systems. Nature of biophysics Biophysics is * An acad ...
* Biophysics * Biochemistry


References


Bibliography

* * * * * Chemistry Biophysics {{biophysics-stub