WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2011012867) A DELIVERY SYSTEM COMPRISING A SILICON-CONTAINING MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/012867    International Application No.:    PCT/GB2010/001456
Publication Date: 03.02.2011 International Filing Date: 30.07.2010
IPC:
A61K 8/25 (2006.01), A61K 9/51 (2006.01)
Applicants: SISAF LTD [GB/GB]; NISP, Innovation Centre Queen's Island Belfast BT3 9DT (GB) (For All Designated States Except US).
SAFFIE-SIEBERT, Roghieh [GB/GB]; (GB) (For US Only)
Inventors: SAFFIE-SIEBERT, Roghieh; (GB)
Agent: FLETCHER, Matthew, James, Edwin; ABEL & IMRAY 20 Red Lion Street London WC1R 4PQ (GB)
Priority Data:
0913255.6 30.07.2009 GB
Title (EN) A DELIVERY SYSTEM COMPRISING A SILICON-CONTAINING MATERIAL
(FR) SYSTÈME DE DISTRIBUTION COMPORTANT UN MATÉRIAU CONTENANT DU SILICIUM
Abstract: front page image
(EN)A composition comprising nanoparticles of a hydrolysable silicon-contain material for use as a delivery system for a bioactive ingredient, wherein surface of the silicon- containing material is associated with a stabilizing agent which modifies the rate of hydrolysis of the silicon-contain material and/or inhibits the rate of orthosilicic acid polymerisation and a method of promoting the controlled release of orthosilicic acid on degradation of a composition comprising nanoparticles of a hydrolysable silicon- contain material, the method involving the treatment of the surface of the silicon-containing material with a stabilizing agent to modify the rate of hydrolysis of the silicon-containing material and/or inhibit the rate of orthosilicic acid polymerisation.
(FR)La présente invention concerne une composition comportant des nanoparticules d'un matériau hydrolysable contenant du silicium destinée à être utilisée dans un système de distribution d'un ingrédient bioactif, la surface du matériau contenant du silicium étant associée à un agent stabilisateur qui modifie le taux d'hydrolyse du matériau contenant du silicium et/ou inhibe le taux de polymérisation de l'acide orthosilicique ainsi qu'un procédé de libération contrôlée de l'acide orthosilicique lors de la dégradation d'une composition comportant des nanoparticules de matériau hydrolysable contenant du silicium. Le procédé comprend le traitement de la surface du matériau contenant du silicium avec un agent stabilisateur pour modifier le taux d'hydrolyse du matériau contenant du silicium et/ou inhiber le taux de polymérisation de l'acide orthosilicique.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)