Abstract:
PURPOSE: An organic silica precursor with hydrophilic segments and hydrophobic segments and silica/amphiphilic polymer composite nanoparticles using the same are provided to obtain the silica nanoparticles with water dispersibility and various hydrophilic substance supporting ability. CONSTITUTION: An organic silica precursor with a hydrophilic segment and a hydrophobic segment has a structure of chemical formula 1. The molecular weight of polyethylene glycol is 600-15,000. A method for preparing a bridged organic silica precursor comprises: a step of stirring and reacting polypropylene triol or glycerol with diisocyanate of toluene diisocyante, isophorone diisocyanate, methylene diisocyanate, methylene diphenyl diisocyanate, hexamethylene diisocyanate, xylene diisocyanate, or tolidine diisocyanate in a molar ratio of 1:3; a step of adding two or more of methoxy(polyethylene oxy)propyltrimethoxy silane, hydroxymethyl triethoxy silane, aminopropyl triethoxy silane, bis(trimethoxysilane siylypropyl)amine, and (3-glycidoxypropyl)trimethoxy silane in a molar ratio of 1:1; and a step of further adding polyethylene oxide and stirring.
Abstract:
본 발명은 5-[4'-(피페리디노메틸)페닐]-2,3-디히드로이미다조[2,1-a]이소퀴놀린의 신규한 의약용도에 관한 것으로서, 더욱 상세하게는 염증반응인자로서의 종양괴사인자 (TNF)-알파의 생성 억제, 종양괴사인자 (TNF)-알파, 인터류킨(IL)-1 베타 및 인터류킨-6의 mRNA 발현 억제, 식세포 작용 능력 억제 및 산화질소(nitric oxide, NO) 생성 억제의 효과를 기초 한 염증성 질병 또는 면역질환의 예방 또는 치료용도에 관한 것이다. 5-[4'-(피페리디노메틸)페닐]-2,3-디히드로이미다조[2,1-a]이소퀴놀린, 항염증활성, 대식세포, 사이토카인
Abstract:
A method for removing an oil pollution of soil is provided to remove easily an oil pollution of soil after disposing contamination materials from the soil by using cross linkage polymer nano particle of which a structure is stable because an adsorptivity to the soil is very low. An aqueous solution including an amphiphilic cross linkage polymer nano particle that is generated by cross-linking and reacting a nonionic urethane acrylate and soil such as clay soil are mixed and agitated. The soil is washed by removing a supernatant after assuming it until the soil particles are settled. The amphiphilic cross linkage polymer nano particle aqueous solution includes amphiphilic cross linkage polymer nano particles at a 100~1000ppm of concentration.