CA2441194A1 - Analysis and fractionation of particles near surfaces - Google Patents

Analysis and fractionation of particles near surfaces Download PDF

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Publication number
CA2441194A1
CA2441194A1 CA002441194A CA2441194A CA2441194A1 CA 2441194 A1 CA2441194 A1 CA 2441194A1 CA 002441194 A CA002441194 A CA 002441194A CA 2441194 A CA2441194 A CA 2441194A CA 2441194 A1 CA2441194 A1 CA 2441194A1
Authority
CA
Canada
Prior art keywords
particles
fractionation
analysis
near surfaces
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002441194A
Other languages
French (fr)
Other versions
CA2441194C (en
Inventor
Michael Seul
Sukanta Banerjee
Kairali Podual
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bioarray Solutions Ltd
Original Assignee
Bioarray Solutions, Ltd.
Michael Seul
Sukanta Banerjee
Kairali Podual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bioarray Solutions, Ltd., Michael Seul, Sukanta Banerjee, Kairali Podual filed Critical Bioarray Solutions, Ltd.
Publication of CA2441194A1 publication Critical patent/CA2441194A1/en
Application granted granted Critical
Publication of CA2441194C publication Critical patent/CA2441194C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0266—Investigating particle size or size distribution with electrical classification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C5/00—Separating dispersed particles from liquids by electrostatic effect
    • B03C5/02—Separators
    • B03C5/022—Non-uniform field separators
    • B03C5/026—Non-uniform field separators using open-gradient differential dielectric separation, i.e. using electrodes of special shapes for non-uniform field creation, e.g. Fluid Integrated Circuit [FIC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N2015/0294—Particle shape

Abstract

A method and apparatus for fractionation of a mixture of particles and for particle analysis are provided, in which LEAPS ("Light-controlled Electrokinetic Assembly of Particles near Surfaces") is used to fractionate and analyze a plurality of particles suspended in an interface between an electrode and an electrolyte solution. A mixture of particles are fractionated according to their relaxation frequencies, which in turn reflect differences in size or surface composition of the particles. Particles may also be analyzed to determine their physical and chemical properties based on particle relaxation frequency and maximal velocity.
CA002441194A 2001-03-21 2002-03-21 Analysis and fractionation of particles near surfaces Expired - Fee Related CA2441194C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/813,571 2001-03-21
US09/813,571 US6706163B2 (en) 2001-03-21 2001-03-21 On-chip analysis of particles and fractionation of particle mixtures using light-controlled electrokinetic assembly of particles near surfaces
PCT/US2002/008706 WO2002076585A1 (en) 2001-03-21 2002-03-21 Analysis and fractionation of particles near surfaces

Publications (2)

Publication Number Publication Date
CA2441194A1 true CA2441194A1 (en) 2002-10-03
CA2441194C CA2441194C (en) 2007-07-03

Family

ID=25212773

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002441194A Expired - Fee Related CA2441194C (en) 2001-03-21 2002-03-21 Analysis and fractionation of particles near surfaces

Country Status (5)

Country Link
US (2) US6706163B2 (en)
EP (1) EP1379323A1 (en)
JP (1) JP4422409B2 (en)
CA (1) CA2441194C (en)
WO (1) WO2002076585A1 (en)

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Also Published As

Publication number Publication date
US7211183B2 (en) 2007-05-01
US20040129568A1 (en) 2004-07-08
US20020166766A1 (en) 2002-11-14
EP1379323A1 (en) 2004-01-14
US6706163B2 (en) 2004-03-16
CA2441194C (en) 2007-07-03
JP2004538128A (en) 2004-12-24
WO2002076585A1 (en) 2002-10-03
JP4422409B2 (en) 2010-02-24

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Effective date: 20180321