CA2213663A1 - Polyalkylene block copolymers as surface modifiers for nanoparticles - Google Patents

Polyalkylene block copolymers as surface modifiers for nanoparticles

Info

Publication number
CA2213663A1
CA2213663A1 CA002213663A CA2213663A CA2213663A1 CA 2213663 A1 CA2213663 A1 CA 2213663A1 CA 002213663 A CA002213663 A CA 002213663A CA 2213663 A CA2213663 A CA 2213663A CA 2213663 A1 CA2213663 A1 CA 2213663A1
Authority
CA
Canada
Prior art keywords
nanoparticles
block copolymers
surface modifiers
polyalkylene block
blocks
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
CA002213663A
Other languages
French (fr)
Other versions
CA2213663C (en
Inventor
Sui-Ming Wong
Eugene R. Cooper
Shugian Xu
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.)
Elan Pharma International Ltd
Original Assignee
Nanosystems L.L.C.
Sui-Ming Wong
Eugene R. Cooper
Shugian Xu
Eastman Kodak Company
Elan Corporation, Plc
Elan Pharma International Limited
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 Nanosystems L.L.C., Sui-Ming Wong, Eugene R. Cooper, Shugian Xu, Eastman Kodak Company, Elan Corporation, Plc, Elan Pharma International Limited filed Critical Nanosystems L.L.C.
Publication of CA2213663A1 publication Critical patent/CA2213663A1/en
Application granted granted Critical
Publication of CA2213663C publication Critical patent/CA2213663C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A61K9/141—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers
    • A61K9/146—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers with organic macromolecular compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/734—Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
    • Y10S977/742—Carbon nanotubes, CNTs
    • Y10S977/745—Carbon nanotubes, CNTs having a modified surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
    • Y10S977/775—Nanosized powder or flake, e.g. nanosized catalyst
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/788—Of specified organic or carbon-based composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/902—Specified use of nanostructure
    • Y10S977/904—Specified use of nanostructure for medical, immunological, body treatment, or diagnosis
    • Y10S977/927—Diagnostic contrast agent

Abstract

There is disclosed a composition containing nanoparticles having a surface modifier wherein the surface modifier is a block copolymer containing one or more polyoxyethylene blocks and one or more polyoxy(higher alkylene) blocks wherein at least some of the blocks are linked together by a linking group characterised in that the linking group is an oxymethylene group.
CA002213663A 1995-02-24 1996-02-22 Polyalkylene block copolymers as surface modifiers for nanoparticles Expired - Fee Related CA2213663C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/393,972 US5565188A (en) 1995-02-24 1995-02-24 Polyalkylene block copolymers as surface modifiers for nanoparticles
US08/393,972 1995-02-24
PCT/US1996/002356 WO1996025921A1 (en) 1995-02-24 1996-02-22 Polyalkylene block copolymers as surface modifiers for nanoparticles

Publications (2)

Publication Number Publication Date
CA2213663A1 true CA2213663A1 (en) 1996-08-29
CA2213663C CA2213663C (en) 2009-11-03

Family

ID=23557014

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002213663A Expired - Fee Related CA2213663C (en) 1995-02-24 1996-02-22 Polyalkylene block copolymers as surface modifiers for nanoparticles

Country Status (8)

Country Link
US (2) US5565188A (en)
EP (1) EP0810855B1 (en)
JP (1) JPH11500733A (en)
AT (1) ATE242628T1 (en)
AU (1) AU5025596A (en)
CA (1) CA2213663C (en)
DE (1) DE69628640T2 (en)
WO (1) WO1996025921A1 (en)

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