Amphiphilic block copolymer and polymeric composition comprising the same for drug delivery
申请人:Seo Hyo Min
公开号:US20050201972A1
公开(公告)日:2005-09-15
The present invention relates to an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block with a terminal hydroxyl group wherein the terminal hydroxyl group of the hydrophobic bock is substituted with a tocopherol or cholesterol group. It also relates to polymeric compositions capable of forming stable micelles in an aqueous solution, comprising the amphiphilic block copolymer and a polylactic acid derivative wherein one or more ends of the polylactic acid are covalently bound to at least one carboxyl group.
Amphiphilic block copolymer and polymeric compostition comprising the same for drug delivery
申请人:Seo Min Hyo
公开号:US20080152616A1
公开(公告)日:2008-06-26
The present invention relates to an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block with a terminal hydroxyl group wherein the terminal hydroxyl group of the hydrophobic bock is substituted with a tocopherol or cholesterol group. It also relates to polymeric compositions capable of forming stable micelles in an aqueous solution, comprising the amphiphilic block copolymer and a polylactic acid derivative wherein one or more ends of the polylactic acid are covalently bound to at least one carboxyl group.
Invasomes for therapy of disorders, their preparation and use
申请人:——
公开号:US20030064948A1
公开(公告)日:2003-04-03
The invention relates to invasomes comprising a lipid mixture comprising one or more lipids, preferably neutral lipids, one or more lysophosphatides and at least one pharmacological agent, preferably an immunomodulator, to the preparation thereof and to the use thereof for the therapy of disorders, preferably of disorders which can be treated by modulation of the immune system.
Thermal and optical properties of chiral twin liquid crystalline bis(cholesteryl) alkanedioates
作者:Antonius T. M. Marcelis、Arie Koudijs、Ernst J. R. Sudhölter
DOI:10.1039/jm9960601469
日期:——
The thermal and optical properties of a series of bis (cholesteryl) alkanedioates were investigated. The melting points, the cholesteric to isotropic transition temperatures, the entropy changes at this temperature and the selective reflection wavelengths of the cholesteric phase all exhibit an odd-even effect as a function of spacer length. This is attributed to a difference in the ordering of the cholesteric phase as a function of the parity of the spacer. Because the properties of the members of the series with a short spacer could not be measured for several reasons, their properties were also determined as a 5 wt% solution in a cholesteric host. A similar odd-even influence on the cholesteric to isotropic transition temperatures and the optical properties of the host was observed as for the pure compounds. The influence on the properties of the host is stronger for compounds with a short spacer than for compounds with a longer spacer.
METHODS OF DELIVERING AEROSOLIZED POLYNUCLEOTIDES TO THE RESPIRATORY TRACT