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. It was founded in 1996 by Philip Goetz (former

chairman The chair, also chairman, chairwoman, or chairperson, 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 gro ...

, 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 An 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 O ...

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.ISO 13099-1:2012 Colloidal systems – Methods for zeta-potential determination
– Part 1: Electroacoustic and electrokinetic phenomena Dispersion Technology manufactures a family of

ultrasound Ultrasound is sound with frequency, frequencies greater than 20 Hertz, kilohertz. This frequency is the approximate upper audible hearing range, limit of human hearing in healthy young adults. The physical principles of acoustic waves apply ...

-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 ...

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.is a scientific term for Electrokinetic phenomena, electrokinetic Electric ...

, 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 applie ...

, 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 (journal), Cell'', the ScienceDirect collection of electronic journals, ...

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 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 ...

documenting their research done in the former

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

; their contributions to the fields of electrokinetics, colloid science, DLVO theory, etc.; and their immigration to the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

as a part of the Soviet Scientists Immigration Act of 1992. 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 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 mi ...

and

Concrete Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...

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

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 () is a material that, when polished or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. These properties are all associated with having electrons available at the Fermi level, as against no ...

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 Concrete additive, additives used for making high strength concrete or to place Self-consolidating concrete, self-compacting concrete. Plasticizers are chemical compounds enabli ...

s **

Pigments A pigment is a powder used to add or alter color or change visual appearance. Pigments are completely or nearly solubility, insoluble and reactivity (chemistry), chemically unreactive in water or another medium; in contrast, dyes are colored sub ...

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. Latices are found in nature, but synthetic latices are common as well. In nature, latex is found as a wikt:milky, milky fluid, which is present in 10% of all floweri ...

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) **

Clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impuriti ...

sGuerin, 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, re ...

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) * MicellesBonacucina, 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 Milling may refer to: * Milling (minting), forming narrow ridges around the edge of a coin * Milling (grinding), breaking solid materials into smaller pieces by grinding, crushing, or cutting in a mill * Milling (machining), a process of using ro ...

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 known as a movie or motion picture, is a work of Visual arts, visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, emotions, or atmosphere through the use of moving images that are gen ...

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. Bi ...

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 () is a chemical substance, substance or material that consists of very large molecules, or macromolecules, that are constituted by many repeat unit, repeating subunits derived from one or more species of monomers. Due to their br ...

Gel 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