WO2005032512A3 - Capsules of multilayered neutral polymer films associated by hydrogen bonding - Google Patents

Capsules of multilayered neutral polymer films associated by hydrogen bonding Download PDF

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Publication number
WO2005032512A3
WO2005032512A3 PCT/US2004/032491 US2004032491W WO2005032512A3 WO 2005032512 A3 WO2005032512 A3 WO 2005032512A3 US 2004032491 W US2004032491 W US 2004032491W WO 2005032512 A3 WO2005032512 A3 WO 2005032512A3
Authority
WO
WIPO (PCT)
Prior art keywords
capsules
hydrogen bonding
polymer films
neutral polymer
films associated
Prior art date
Application number
PCT/US2004/032491
Other languages
French (fr)
Other versions
WO2005032512A2 (en
Inventor
Svetlana A Sukhishvili
Veronika Kozlovskaya
Eugenia Kharlampieva
Original Assignee
Trustees Stevens Inst Tech
Svetlana A Sukhishvili
Veronika Kozlovskaya
Eugenia Kharlampieva
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 Trustees Stevens Inst Tech, Svetlana A Sukhishvili, Veronika Kozlovskaya, Eugenia Kharlampieva filed Critical Trustees Stevens Inst Tech
Priority to CA002541974A priority Critical patent/CA2541974A1/en
Priority to EP04789485A priority patent/EP1691791A2/en
Priority to JP2006534181A priority patent/JP2007514518A/en
Publication of WO2005032512A2 publication Critical patent/WO2005032512A2/en
Publication of WO2005032512A3 publication Critical patent/WO2005032512A3/en

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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
    • A61K9/48—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
    • A61K9/5089—Processes

Abstract

Micro-, and nano-scale capsules comprising neutral (uncharged) polymeric layers, layers associated by hydrogen bonding and methods for making such capsules. The capsules of the invention are layered upon a core particle using a layer-by layer-technique. The capsule walls of the capsules of the invention give a tailored response to external stimuli.
PCT/US2004/032491 2003-10-02 2004-09-30 Capsules of multilayered neutral polymer films associated by hydrogen bonding WO2005032512A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002541974A CA2541974A1 (en) 2003-10-02 2004-09-30 Capsules of multilayered neutral polymer films associated by hydrogen bonding
EP04789485A EP1691791A2 (en) 2003-10-02 2004-09-30 Capsules of multilayered neutral polymer films associated by hydrogen bonding
JP2006534181A JP2007514518A (en) 2003-10-02 2004-09-30 Capsule of multilayer neutral polymer film bonded by hydrogen bonding

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US50875403P 2003-10-02 2003-10-02
US60/508,754 2003-10-02
US51044903P 2003-10-10 2003-10-10
US60/510,449 2003-10-10

Publications (2)

Publication Number Publication Date
WO2005032512A2 WO2005032512A2 (en) 2005-04-14
WO2005032512A3 true WO2005032512A3 (en) 2006-03-30

Family

ID=34426066

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/032491 WO2005032512A2 (en) 2003-10-02 2004-09-30 Capsules of multilayered neutral polymer films associated by hydrogen bonding

Country Status (5)

Country Link
US (1) US20050163714A1 (en)
EP (1) EP1691791A2 (en)
JP (1) JP2007514518A (en)
CA (1) CA2541974A1 (en)
WO (1) WO2005032512A2 (en)

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Also Published As

Publication number Publication date
EP1691791A2 (en) 2006-08-23
US20050163714A1 (en) 2005-07-28
JP2007514518A (en) 2007-06-07
CA2541974A1 (en) 2005-04-14
WO2005032512A2 (en) 2005-04-14

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