Dispersion Technology Inc is a

scientific instrument A scientific instrument is a device or tool used for scientific purposes, including the study of both natural phenomena and theoretical research. History Historically, the definition of a scientific instrument has varied, based on usage, laws, an ...

manufacturer located in

Bedford Hills, New York Bedford Hills is a hamlet and census-designated place (CDP) in the town of Bedford, Westchester County, New York, United States. The population was 3,001 at the 2010 census. Two New York State prisons for women, Bedford Hills Correctional Fa ...

. It was founded in 1996 by Philip Goetz (former

Chairman The chairperson, also chairman, chairwoman or chair, is the presiding officer of an organized group such as a board, committee, or deliberative assembly. The person holding the office, who is typically elected or appointed by members of the grou ...

, retired in 2010) and Dr. Andrei Dukhin (current CEO). The company develops and sells analytical instruments intended for characterizing concentrated dispersions and

emulsions An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable) owing to liquid-liquid phase separation. Emulsions are part of a more general class of two-phase systems of matter called colloids. Althoug ...

, complying with the

International Standard international standard is a technical standard developed by one or more international standards organizations. International standards are available for consideration and use worldwide. The most prominent such organization is the International Or ...

s for acoustic particle sizing ISO 20998 ISO 20998-1:2006 Measurement and characterization of particles by acoustic methods
-- Part 1: Concepts and procedures in ultrasonic attenuation spectroscopy
-- Part 2: Guidelines for linear theory and Electroacoustic zeta potential measurement ISO 13099.
– Part 1: Electroacoustic and electrokinetic phenomena Dispersion Technology manufactures a family of ultrasound based instruments for measuring

particle size Particle size is a notion introduced for comparing dimensions of solid particles ('' flecks''), liquid particles (''droplets''), or gaseous particles ('' bubbles''). The notion of particle size applies to particles in colloids, in ecology, in gr ...

zeta potential Zeta potential is the electrical potential at the slipping plane. This plane is the interface which separates mobile fluid from fluid that remains attached to the surface. Zeta potential is a scientific term for electrokinetic potential in coll ...

, high frequency

rheology Rheology (; ) is the study of the flow of matter, primarily in a fluid ( liquid or gas) state, but also as "soft solids" or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an appl ...

, and solid content in concentrated systems without diluting them. Founders Dukhin and Goetz have written two books published by

Elsevier Elsevier () is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell'', the ScienceDirect collection of electronic journals, '' Trends'', th ...

describing the details of these methods, underlying theories, and applications of the instruments manufactured by Dispersion Technology.Characterization of Liquids, Nano- and Microparticulates, and Porous Bodies using Ultrasound, ELSEVIER, 2010, 2nd Edition
Retrieved: 8 October 2013 Co-Founder Dr. Andrei Dukhin and his father Dr. Stanislav Dukhin were the subject of a 2009

feature Feature may refer to: Computing * Feature (CAD), could be a hole, pocket, or notch * Feature (computer vision), could be an edge, corner or blob * Feature (software design) is an intentional distinguishing characteristic of a software item ...

in the

American Chemical Society The American Chemical Society (ACS) is a scientific society based in the United States that supports scientific inquiry in the field of chemistry. Founded in 1876 at New York University, the ACS currently has more than 155,000 members at all d ...

documenting their research done in the former

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...

; their contributions to the fields of electrokinetics, colloid science,

DLVO theory The DLVO theory (named after Boris Derjaguin and Lev Landau, Evert Verwey and Theodoor Overbeek) explains the aggregation of aqueous dispersions quantitatively and describes the force between charged surfaces interacting through a liquid medium ...

, etc.; and their immigration to the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

as a part of the

Soviet Scientists Immigration Act of 1992 Soviet Scientists Immigration Act of 1992 granted authorization for engineers and scientists from the post-Soviet states to acquire employment within America. The Act of Congress implemented specific provisions of the Immigration and Nationality A ...

. Dispersion Technology maintains seven patents in the United States,patent USA, 6,109,098 (2000)
Retrieved: 9 October 2013
Retrieved: 9 October 2013
Retrieved: 9 October 2013[https://web.archive.org/web/20170124053003/http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6%2C487%2C894.PN.&OS=PN%2F6%2C487%2C894&RS=PN%2F6%2C487%2C894 patent USA, 6,487,894 B1 (2002)], Retrieved: 9 October 2013patent USA, 6,915,214 B2 (2005)
Retrieved: 9 October 2013
Retrieved: 9 October 2013 and has representation in Japan, Russia, Europe, Brazil, South Korea, China, and Canada.

Products

* Particle Size AnalyzersGuerin, M. Seaman, J.C., Lehmann, C., and Jurgenson, A.
Acoustic and electroacoustic characterization of variable charge mineral suspensions
Clays and Clay Minerals, vol. 52, 2, 158-170 (2004)Richter, A., Voight, T., Rippeger, S.
Ultrasonic attenuation spectroscopy of emulsions with droplet sizes greater than 10 microns
JCIS, 315, 482-492 (2007)Bell, N., Cesarano, J., Voight, J.A., Lockwood, S.J. and Dimos D.B.
Colloidal processing of chemically prepared zinc oxide varistors. Part 1. Milling and dispersion of powder
J. Mat. Res., 19, 5, 1333-1340 (2004) * Zeta Potential AnalyzersHackley, A.V., Lum, Lin-Sien, Ferraris, C.F.
Acoustic sensing of Hydrating Cement Suspensions: An explanatory study
, NIST Technical Note 1492, (2007)Plank, J. and Hirch, C.
Impact of zeta potential of early cement hydration phases on superplasticizer adsorption
Cement and Concrete Research, (2007)Plank, J. and Sachsenhauser, B.
Impact of molecular structure on zeta potential and adsorbed conformation of a-allyl-w-methoxypolyethylene glycol-maleic anhydride superplasticizers
Journal of Advanced Concrete Technology, 4, 2, 233-239 (2006) * Longitudinal Rheology Analyzers * Aqueous

Conductivity Conductivity may refer to: *Electrical conductivity, a measure of a material's ability to conduct an electric current **Conductivity (electrolytic), the electrical conductivity of an electrolyte in solution **Ionic conductivity (solid state), elec ...

Probes Dukhin, A.S., Goetz, P. J. and Thommes, M.
Seismoelectric effect: A non-isochoric streaming current. Experiment
JCIS. 345, pp. 547-553 (2010) * Non-Aqueous Conductivity ProbesGacek, M., Bergman, D., Michor, E., and Berg, J.C.
Effect of trace water on charging of silica particles dispersed in a nonpolar medium
Langmuir, 28, pp. 11633-11638 (2012)

Research utilizing instrumentation

Scientific papers have been published using instruments manufactured by Dispersion Technology to study the following kinds of systems: *Suspensions of Solids: **

Cement A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel ( aggregate) together. Cement mix ...

and

Concrete Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most wi ...

Silica Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula , most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one ...

Kosmulski, M., Hartikainen, J., Maczka, E., Janus, W. and Rosenholm, J.B.
Multiinstrument study of the electrophoretic mobility of fumed silica
Anal.Chem., 74, 253-256 (2002)Wilhelm, P., Stephan, D.
On-line tracking of the coating of nanoscaled silica with titania nanoparticles via zeta-potential measurements
JCIS, 293, 88-92 (2006) **

Metals A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typicall ...

and Metal OxidesKosmulski, M., Dahlstem, P., Rosenholm, J.B.
Electrokinetic studies of metal oxides in the presence of alkali trichloroacetates, trifluoroacetates
Colloids and Surfaces, 313, 202-206(2007)Gaydardzhiev, S. and Ay,P.
Evaluation of dispersant efficiency for aqueous alumina slurries by concurrent techniques
Journal of Dispersion Science and Technology, 27, 413-417 (2006) **

Superplasticizer Superplasticizers (SPs), also known as high range water reducers, are additives used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplast ...

s **

Pigments A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compou ...

Schoelkopf, J., Gantenbein, D., Dukhin, A.S., Goetz, P.J. and Gane, P.A.C.
Novel particle size characterization of coating pigments
Conference Paper **

Latex Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well. In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms ...

esIshikawa, Y., Aoki, N., and Ohshima, H.
Characterization of latex particles for aqueous polymeric coating by electroacoustic method
Colloids and Surfaces B, 46, 147-151 (2005)Plank, J. and Gretz, M.
Study on the interaction between anionic and cationic latex particles and Portland cement
Colloids and Surfaces, A., 330, pp. 227-233 (2008) **

Clays Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...

Guerin, M. and Seaman, J.C.
Characterizing clay mineral suspensions using acoustic and electroacoustic spectroscopy
Clays and Clay Minerals, 52, 2, 145-157 (2004)Ali, S. and Bandyopadhyay, R.
Use of Ultrasound Attenuation Spectroscopy to Determine the Size Distribution of Clay Tactoids in Aqueous Suspensions
Langmuir, 29 (41), 12663–12669 (2013) * Nano-ParticlesSun, Y.-P., Li, X., Cao, J., Zhang, W. and Wang.H.P.
Characterization of zero-valent iron nanoparticles
Adv. in Colloid and Interface Sci., 120, 47-56 (2006)Bell, N. and Rodriguez, M.A.
Dispersion properties of an alumina nanopowder using molecular, polyelectrolyte, and steric stabilization
Journal of Nanoscience and Nanotechnology, 4, 3, 283-290 (2004) *

Emulsions An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable) owing to liquid-liquid phase separation. Emulsions are part of a more general class of two-phase systems of matter called colloids. Althoug ...

(both micro and macro) ** Oil-in-waterWines, T.H., Dukhin A.S. and Somasundaran, P.
Acoustic spectroscopy for characterizing heptane/water/AOT reverse microemulsion
JCIS, 216, 303-308 (1999) ** Water-in-oilMagual, A., Horvath-Szabo G., Masliyah, J.H.
Acoustic and electroacoustic spectroscopy of water-in-diluted bitumen emulsions
Langmuir, 21, 8649-8657 (2005)Dukhin, A.S. and Goetz, P.J.
Evolution of water-in-oil emulsion controlled by droplet-bulk ion exchange: acoustic, electroacoustic, conductivity and image analysis
Colloids and Surfaces, A, 253, 51-64 (2005) *

Proteins Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respo ...

Dukhin, A. S., Goetz, P.J. and Theo G.M. van de Ven
Ultrasonic characterization of proteins and blood cells
Colloids and Surfaces B, 52, 121-126 (2006) *

Micelles A micelle () or micella () (plural micelles or micellae, respectively) is an aggregate (or supramolecular assembly) of surfactant amphipathic lipid molecules dispersed in a liquid, forming a colloid, colloidal suspension (also known as associat ...

Bonacucina, G., Misici-Falzi, M., Cespi, M., Palmieri, G.F.
Characterization of micellar systems by the use of Acoustic spectroscopy
Journal of Pharmaceutical Sciences, 97, vol. 6, 2217–2227, (2008) * Milling and Nanomilling Stenger, F., Mende, S., Schwedes, J., Peukert, W.
Nanomilling in stirred media mills
Chemical Engineering Science, 60, 4557-4565 (2005)Mende, S., Stenger, F., Peukert, W. and Schwedes, J.
Mechanical production and stabilization of submicron particles in stirred media mills
Powder Technology, 132, pp. 64-73 (2003) *

Films A film also called a movie, motion picture, moving picture, picture, photoplay or (slang) flick is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, feelings, beauty, or atmosphere ...

Orozco, V.H., Kozlovskya, V., Kharlampieva, Eu., Lopez, B.L. and Tsukruk, V.V.
Biodegradable self-reporting nanocomposite films of poly(lactic acid) nanoparticles engineered by layer-by-layer assembly
Polymer, 51, 18, 4127–4139 *

Membrane A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes. B ...

sDukhin, A.S., Parlia, S.
Studying homogeneity and zeta potential of membranes using electroacoustics
Journal of Membrane Science, vol. 415-415, pp. 587-595 (2012) *

Polymer A polymer (; Greek '' poly-'', "many" + ''-mer'', "part") is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic a ...

Gel A gel is a semi-solid that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state, although the liquid phase may still dif ...

SystemsBhosale P. S. and Berg, J. C.
Acoustic spectroscopy of colloids dispersed in a polymer gel systems
Langmuir, 26 (18), pp. 14423-14426 (2010)

External links

Official site

References

{{reflist, colwidth=30em Technology companies of the United States Companies based in New York (state) Manufacturing companies established in 1996 Technology companies established in 1996 Laboratory equipment manufacturers