Novel polymers, more particularly pH-sensitive polymers, a base for medicaments directed to delivery to the large intestine by utilizing the same, and segments of the same. The polymers comprise segments of a compound represented by general formula (1), are prepared by polymerization of segments ...
pH‐sensitive polymerspolymeric nanoparticlesSafe and efficient diagnosis and therapy of cancers are important and of great interest these years. Multifunctional polymeric nanoparticles incorporating therapeutic and imaging agents are powerful tools for simultaneous therapy and diagnosis (theranostics). The most...
These polymers were characterized by 1H-NMR and gel permeation chromatography. The influence of the substitution ratio of tertiary amine-containing groups on the pH sensitivity of the polymers was investigated in detail. Core/shell-structured micelles were fabricated from these polymers using an organic...
英文名称:Siloxanes and Silicones, di-Me, di-Ph, Me vinyl, polymers with Ph silsesquioxanes;siloxanes and silicones, di-me, di-ph, me vinyl, polymers with ph silsesquioxan 说明:补充资料仅用于学习参考,请勿用于其它任何用途。
Recently, liposomes modified with pH-sensitive polymers have been used as highly effective antigen delivery systems. The control of the pH-responsive fusion ability and the intracellular distribution of antigens, the induction of humoral or cellular immunity in vivo, the induction of protective ...
pH-sensitivepolymer-assistedrefoldingofurea-denaturedfibroblastgrowthfactorZhiFengHuanga,b,c,1,ShanShanWangd,1,ChunYanNib,ShuLinYang..
Surface engineering of a variety of materials including colloidal particles and porous membranes has been achieved by using layer-by-layer assembly of pH-sensitive polymers and nanoparticles. In the first part of this thesis, hydrogen-bonded multilayer coatings comprising poly(acrylic acid) and polyacry...
Beads formed from linear pH/temperature-sensitive polymers, poly (N-isopropylacrylamide-co-butylmethacrylate-co-acrylic acid), were evaluated as a potential polypeptide drug carrier in terms of loading efficiency, pH-dependent release, and preservation of bioactivity of loaded drugs. The beads were for...
pH-Sensitive polymers appear to be good candidates to achieve this goal because they exhibit a conformational transition when the pH in the surrounding medium fluctuates, which changes the solubility of the polymers and leads to the swelling of hydrogels. Many pH-sensitive polymers, such as poly(...
For this purpose CA was microencapsulated within several types of acrylic polymers by the solvent evaporation and the solvent extraction techniques., The acrylic polymers selected were: Eudragit E (positively charged and soluble at pH 5)Eudragit L-55 (negatively charged and soluble at pH >5.5) ...