GB2094750B - Encapsulation and release of core material - Google Patents

Encapsulation and release of core material

Info

Publication number
GB2094750B
GB2094750B GB8207308A GB8207308A GB2094750B GB 2094750 B GB2094750 B GB 2094750B GB 8207308 A GB8207308 A GB 8207308A GB 8207308 A GB8207308 A GB 8207308A GB 2094750 B GB2094750 B GB 2094750B
Authority
GB
United Kingdom
Prior art keywords
encapsulation
release
core material
core
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
Application number
GB8207308A
Other versions
GB2094750A (en
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.)
Damon Corp
Original Assignee
Damon Corp
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 Damon Corp filed Critical Damon Corp
Publication of GB2094750A publication Critical patent/GB2094750A/en
Application granted granted Critical
Publication of GB2094750B publication Critical patent/GB2094750B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
    • C12N11/04—Enzymes or microbial cells immobilised on or in an organic carrier entrapped within the carrier, e.g. gel or hollow fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/20—After-treatment of capsule walls, e.g. hardening
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
    • C12N5/0012—Cell encapsulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
    • A61K2035/126—Immunoprotecting barriers, e.g. jackets, diffusion chambers
    • A61K2035/128—Immunoprotecting barriers, e.g. jackets, diffusion chambers capsules, e.g. microcapsules
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2533/00—Supports or coatings for cell culture, characterised by material
    • C12N2533/70—Polysaccharides
    • C12N2533/74—Alginate

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cell Biology (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
GB8207308A 1981-03-13 1982-03-12 Encapsulation and release of core material Expired GB2094750B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24358481A 1981-03-13 1981-03-13

Publications (2)

Publication Number Publication Date
GB2094750A GB2094750A (en) 1982-09-22
GB2094750B true GB2094750B (en) 1984-08-22

Family

ID=22919328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8207308A Expired GB2094750B (en) 1981-03-13 1982-03-12 Encapsulation and release of core material

Country Status (11)

Country Link
JP (1) JPS57197031A (en)
BE (1) BE892477A (en)
CA (1) CA1184518A (en)
CH (1) CH651579A5 (en)
DE (1) DE3209045C2 (en)
DK (1) DK112382A (en)
FR (1) FR2501528A1 (en)
GB (1) GB2094750B (en)
IT (1) IT1150681B (en)
NO (1) NO158284C (en)
SE (1) SE454181B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD160393A3 (en) * 1980-11-14 1983-07-27 Horst Dautzenberg MICRO CAPSULES AND METHOD FOR THE PRODUCTION THEREOF
NO163060C (en) * 1981-03-13 1990-03-28 Damon Biotech Inc PROCEDURE FOR THE PREPARATION OF SUBSTANCES MADE BY LIVING CELLS PRODUCING INTERFERONES OR ANTIBODIES.
NO161446C (en) * 1981-03-13 1989-08-16 Damon Biotech Inc PROCEDURE FOR CULTING CELLS RELATED TO ANCHORING.
US4582799A (en) * 1983-04-15 1986-04-15 Damon Biotech, Inc. Process for recovering nonsecreted substances produced by cells
EP0127989A3 (en) * 1983-06-01 1986-03-26 Connaught Laboratories Limited Microencapsulation of living tissue and cells
CA1196862A (en) * 1983-06-01 1985-11-19 Anthony M.F. Sun Microencapsulation of living tissue and cells
CA1245984A (en) * 1983-09-01 1988-12-06 Damon Biotech, Inc. Polyionic microencapsulation
US4663286A (en) * 1984-02-13 1987-05-05 Damon Biotech, Inc. Encapsulation of materials
DE3575375D1 (en) * 1984-02-15 1990-02-22 Massachusetts Inst Technology ENCLOSURE METHOD AND SYSTEMS WITH ENCLOSED ACTIVE MATERIAL.
US4686098A (en) * 1984-05-14 1987-08-11 Merck & Co., Inc. Encapsulated mouse cells transformed with avian retrovirus-bovine growth hormone DNA, and a method of administering BGH in vivo
GB8500121D0 (en) * 1985-01-03 1985-02-13 Connaught Lab Microencapsulation of living cells
AU589438B2 (en) * 1985-08-26 1989-10-12 Hana Biologics, Inc. Transplantable artificial tissue and process
JPS62166891A (en) * 1986-01-20 1987-07-23 Snow Brand Milk Prod Co Ltd Production of useful substance by cell cultivation
US4952506A (en) * 1986-04-28 1990-08-28 Rohm And Haas Company Immobilization of nonanchorage-dependent cells
JPS6348039U (en) * 1986-09-12 1988-04-01
JPS6379587A (en) * 1986-09-22 1988-04-09 Saburo Senoo Base material for cultivating cell
US5069831A (en) * 1988-12-22 1991-12-03 The Mead Corporation Method for separation of microcapsules and preparation of printing inks
DE69221484T2 (en) * 1991-04-25 1998-02-19 Univ Brown Res Found IMPLANTABLE, BIOCOMPATIBLE IMMUNISOLATOR SUPPORT SUBSTANCE FOR DELIVERING SELECTED, THERAPEUTIC PRODUCTS
US5800829A (en) * 1991-04-25 1998-09-01 Brown University Research Foundation Methods for coextruding immunoisolatory implantable vehicles with a biocompatible jacket and a biocompatible matrix core
IL102785A (en) * 1991-08-20 1998-06-15 Univ Leicester Method for removing protein from a water- soluble gum and a method of making biocompatible capsules using said gum
DE60033633T2 (en) * 1999-12-08 2007-11-15 Vercell Biotechnology Bv POLYACRYLAMIDIC KIT FOR THE PRODUCTION OF A CAPSULE IN THE TISSUE OF ANIMAL MORGANISM AND ANIMAL ALLOGENIC OR XENOGENIC CELLS, FOR THE TREATMENT OF ONCOLOGICAL DISEASES AND DIABETES MELLITUS
GB201408233D0 (en) 2014-05-09 2014-06-25 Austrianova Singapore Pte Ltd Use of polyanionic composition
WO2020066306A1 (en) * 2018-09-28 2020-04-02 富士フイルム株式会社 Cell structure, method for producing cell structure, method for culturing cells, and micro-flow path
CN114504561B (en) * 2022-03-01 2023-08-11 陕西科技大学 Aqueous coating method for preparing drug osmotic pump preparation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL129921C (en) * 1958-12-31
FR1542881A (en) * 1966-10-10 1968-10-18 Ncr Co Process for preparing tiny polymer-based capsules
CH573212A5 (en) * 1973-06-29 1976-03-15 Feller Marc Rech Tech Et Et Sc Delayed release agricultural formulations - of herbicide or insecticide absorbed on porous carrier and coed with isolating layer
US4352883A (en) * 1979-03-28 1982-10-05 Damon Corporation Encapsulation of biological material

Also Published As

Publication number Publication date
FR2501528B1 (en) 1984-06-15
CA1184518A (en) 1985-03-26
SE454181B (en) 1988-04-11
GB2094750A (en) 1982-09-22
FR2501528A1 (en) 1982-09-17
NO158284C (en) 1988-08-17
DE3209045A1 (en) 1982-09-30
NO158284B (en) 1988-05-09
IT1150681B (en) 1986-12-17
DE3209045C2 (en) 1986-06-19
JPS6152737B2 (en) 1986-11-14
IT8220139A0 (en) 1982-03-12
SE8201557L (en) 1982-09-14
BE892477A (en) 1982-07-01
NO820795L (en) 1982-09-14
JPS57197031A (en) 1982-12-03
CH651579A5 (en) 1985-09-30
DK112382A (en) 1982-09-14

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee