[EN] COMPOSITIONS AND METHODS FOR THE INHIBITION OF BONE GROWTH AND RESORPTION [FR] COMPOSITIONS ET PROCEDES D'INHIBITION DE CROISSANCE ET DE RESORPTION OSSEUSE
Effect of Linker Structure on Salicylic Acid-Derived Poly(anhydride−esters)
作者:Almudena Prudencio、Robert C. Schmeltzer、Kathryn E. Uhrich
DOI:10.1021/ma048051u
日期:2005.8.1
A series of salicylic acid-derived poly(anhydride -esters) were synthesized by melt polymerization methods, in which the structures of the molecule ("linker") linking together the two salicylic acids were varied. To determine the relationship between the linker and the physical properties of the corresponding poly(anhydride-ester), several linkers were evaluated including linear aliphatic, aromatic, and aliphatic branched structures. For the linear aliphatic linkers, higher molecular weights were obtained with longer linear alkyl chains. The most sterically hindered linkers yielded lower molecular weight polymers. The thermal decomposition temperature increased with the alkyl chain length, but the glass transition temperature decreased, due to the enhanced flexibility of the polymer. The highest glass transition temperatures were obtained by using aromatic linkers as a result of inereased pi-pi interactions. Water contact angles determined the relative hydrophobicity of the polymers, which correlated to hydrolytic degradation rates; i.e., the highest contact angle values yielded the slowest degrading polymers.
Nitric oxide releasing polymers
申请人:Kalivretenos G. Aristotle
公开号:US20070196327A1
公开(公告)日:2007-08-23
This invention relates to compositions comprising carbon-based diazeniumdiolates attached to hydrophobic polymers that releases nitric oxide (NO). The carbon-based diazeniumdiolated polymers release NO spontaneously under physiological conditions without subsequent nitrosamine formation. The present invention also relates to methods of preparing the carbon-based diazeniumdiolated polymers, compositions comprising such polymers, methods of using such compositions, and devices employing such polymer compositions
COMPOUNDS, POLYMERS AND METHODS FOR TREATING GASTROINTESTINAL DYSFUNCTION
申请人:Kalivretenos Aristotle G.
公开号:US20100255062A1
公开(公告)日:2010-10-07
The present disclosure describes novel carbon-based diazeniumdiolates agents and compounds or salts or prodrugs thereof that release nitric oxide for the treatment of neuropathic gastrointestinal dysfunction. The neuropathic gastrointestinal dysfunction refers to disorders associated with motility, sensation and neuromuscular function that include but are not limited to conditions such as delayed gastric emptying.
[EN] NITRIC OXIDE-RELEASING POLYMERS<br/>[FR] POLYMERES LIBERANT DE L'OXYDE NITRIQUE
申请人:AMULET PHARMACEUTICALS INC
公开号:WO2007067477A1
公开(公告)日:2007-06-14
[EN] This invention relates to compositions comprising carbon-based diazeniumdiolates attached to hydrophobic polymers that releases nitric oxide (NO). The carbon-based diazeniumdiolated polymers release NO spontaneously under physiological conditions without subsequent nitrosamine formation. The present invention also relates to methods of preparing the carbon-based diazeniumdiolated polymers, compositions comprising such polymers, methods of using such compositions, and devices employing such polymer compositions [FR] La présente invention concerne des compositions comprenant des diazéniumdiolates à base de carbone liés à des polymères hydrophobes libérant de l'oxyde nitrique (NO). Les polymères diazéniumdiolatés à base de carbone libèrent du NO spontanément dans des conditions physiologiques sans formation subséquente de nitrosamine. La présente invention concerne également des procédés de fabrication de ces polymères diazéniumdiolatés à base de carbone, des compositions comprenant de tels polymères, des procédés d'utilisation de telles compositions et des dispositifs utilisant de telles compositions polymériques.
High molecular wegiht polymers, devices and method for making and using same
申请人:East Anthony
公开号:US20050048121A1
公开(公告)日:2005-03-03
Anhydride polymers that release active or activatable agent(s) have pre-selected properties such as molecular weight, flexibility, hardness, adhesiveness, and other valuable properties. The polymers are suitable for use in compositions, formulations, coatings, devices, and the like that benefit from the controlled release of an agent(s) over a period of time. The polymers are prepared by a process involving various alternative and sequential steps that allow the design a priori of products with specific characteristics. The polymers are suitable as delivery systems, either by themselves, as compositions, formulations or devices.