CA1340151C - Production de particules magnetiques minerales, portant un revetement - Google Patents

Production de particules magnetiques minerales, portant un revetement

Info

Publication number
CA1340151C
CA1340151C CA 569920 CA569920A CA1340151C CA 1340151 C CA1340151 C CA 1340151C CA 569920 CA569920 CA 569920 CA 569920 A CA569920 A CA 569920A CA 1340151 C CA1340151 C CA 1340151C
Authority
CA
Canada
Prior art keywords
particles
ceramic
coated
emulsion
metal oxide
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.)
Expired - Fee Related
Application number
CA 569920
Other languages
English (en)
Inventor
Jean V. Sang
Robert E. Burrell
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.)
Alfa Wasserman SpA
Original Assignee
Alfa Biotech SpA
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
Priority to CA 569920 priority Critical patent/CA1340151C/fr
Application filed by Alfa Biotech SpA filed Critical Alfa Biotech SpA
Priority to ES89305215T priority patent/ES2066851T3/es
Priority to EP89305215A priority patent/EP0343934B1/fr
Priority to DE68920778T priority patent/DE68920778T2/de
Priority to AT89305215T priority patent/ATE117829T1/de
Priority to JP1131231A priority patent/JP2757964B2/ja
Priority to US07/440,500 priority patent/US5039559A/en
Priority to US08/346,358 priority patent/US5662824A/en
Priority to GR950400865T priority patent/GR3015732T3/el
Application granted granted Critical
Publication of CA1340151C publication Critical patent/CA1340151C/fr
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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
    • G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
    • G01N33/54326—Magnetic particles
    • G01N33/5434—Magnetic particles using magnetic particle immunoreagent carriers which constitute new materials per se
    • 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
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/445—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a compound, e.g. Fe3O4
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2446/00—Magnetic particle immunoreagent carriers
    • G01N2446/20—Magnetic particle immunoreagent carriers the magnetic material being present in the particle core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2446/00—Magnetic particle immunoreagent carriers
    • G01N2446/80—Magnetic particle immunoreagent carriers characterised by the agent used to coat the magnetic particles, e.g. lipids

Landscapes

  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Power Engineering (AREA)
  • Biomedical Technology (AREA)
  • Urology & Nephrology (AREA)
  • Molecular Biology (AREA)
  • Food Science & Technology (AREA)
  • Microbiology (AREA)
  • Cell Biology (AREA)
  • Biotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Compounds Of Iron (AREA)
CA 569920 1988-05-24 1988-06-20 Production de particules magnetiques minerales, portant un revetement Expired - Fee Related CA1340151C (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CA 569920 CA1340151C (fr) 1988-06-20 1988-06-20 Production de particules magnetiques minerales, portant un revetement
EP89305215A EP0343934B1 (fr) 1988-05-24 1989-05-23 Particules magnétiquement attractives et méthode de préparation
DE68920778T DE68920778T2 (de) 1988-05-24 1989-05-23 Magnetisch anziehbare Teilchen und Herstellungsverfahren.
AT89305215T ATE117829T1 (de) 1988-05-24 1989-05-23 Magnetisch anziehbare teilchen und herstellungsverfahren.
ES89305215T ES2066851T3 (es) 1988-05-24 1989-05-23 Particulas atraibles magneticamente y metodo de preparacion.
JP1131231A JP2757964B2 (ja) 1988-05-24 1989-05-24 磁気吸引性粒子及びその製法
US07/440,500 US5039559A (en) 1988-05-24 1989-11-22 Method of making magnetically attractable particles
US08/346,358 US5662824A (en) 1988-05-24 1994-11-29 Magnetically attractable particles and method
GR950400865T GR3015732T3 (en) 1988-05-24 1995-04-10 Magnetically attractable particles and method of preparation.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 569920 CA1340151C (fr) 1988-06-20 1988-06-20 Production de particules magnetiques minerales, portant un revetement

Publications (1)

Publication Number Publication Date
CA1340151C true CA1340151C (fr) 1998-12-01

Family

ID=4138238

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 569920 Expired - Fee Related CA1340151C (fr) 1988-05-24 1988-06-20 Production de particules magnetiques minerales, portant un revetement

Country Status (1)

Country Link
CA (1) CA1340151C (fr)

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