Abstract:
PURPOSE: A process for manufacturing nano-granule that is sensitive to temperature and pH by mixing alkyl acrylamide and N,N-dimethylaminoethylmethacrylate and adding a reaction initiator is provided which gives a simple manufacturing method of nano-granule with a uniform size. CONSTITUTION: Alkyl acrylamide and N,N-dimethylaminoethylmethacrylate are melted in a mixed solvent of water and hydrophilic organic solvent in a volume ratio of 9:1-7:3(preferably 9:1) to give a monomer solution, which is added with a reaction initiator and left at about 50-70°C for 10-20 hr(preferably 15), and filtrated. For an example, N,N-dimethylaminoethylmethacrylate is melted in a mixed solvent of water and ethanol in a volume ratio of 7:3 to give 5 weight% of monomer solution, One hundred weight% of monomer solution is mixed with 0.3 weight% of N,N-azobisisobutyronitryl, left at 60°C for 15 hr, and freeze-dehydrated to give a nano granule. As an amount of ethylacrylamide increases, a diameter of nano-granule becomes short.
Abstract:
고분자 및 단분자가 용해되어 있는 수용액과 기름을 혼합하여 o/w 에멀젼 제조하고 이 에멀젼을 용액에 약물과 기타 첨가물들을 혼합하며 사용되는 고분자에 따라 금속이온 가교, UV를 이용한 가교 및 냉각 등을 사용하여 혼합 용액을 고형화한 후 용도에 부합하는 형태로 성형한 에밀젼 네트웍을 이용한 피부 약물 전달 체계는 제조공정이 간단하며, 다양한 약물에 대해서 적용이 가능한 우수한 피부 약물 전달 체계이다.
Abstract:
The membrane is made by; (a) dissolving biocompatible non-allergenic polymer such as ethylene- vinylacetate copolymer, ethylene-vinylalcohol copolymer, ethylene-ethylacrylate copolymer or ethylene-vinyloxyethanol copolymer in methylenechloride; (b)dissolving polyalcohol compound such as hydroxypropylcellulose, hydroxypropylmethylcellulose, polyethylene glycol, glycerine or ethylene glycol in the mixture of alkanol such as ethanol, propanol, butanol, pentanol or octanol and gloride; (c) mixing (a) and (b) with homogenizer; (d) applying it to the glass to uniform thickness; (e) drying.
Abstract:
The transdermal drug delivery system is composed of the steps of; (a) obtaining the oil phase material containing medicine by mixing medicine and oily material; (b) obtaining O/W emulsion containing oil particles with a diameter of 1-5 Pm by mixing the oil phase material and biodegradable and bioacceptable polymer solution, containing polysaccharide to chelate with metals such as sodium alginate, pectin, xanthomonas campestris or carboxymethylcellulose, and decomposable biologically, with homogenizer; (c) casting the emulsion on glass plate; (d) inducing coupling between the polyvalent ion and the polysaccharide by adding polyvalent ion to the glass plate; (e) leaving it for 301min. and drying.
Abstract:
인터피너트레이팅 네트웍(Interpenetrating Networks : IPNs)의 개념을 이용하여 이온 농도가 극대화된 이온성 고분자 젤을 개발하고 특정한 pH조건에서 약물을 이온화하여 이온결합 형태로 이온성 고분자젤 내에 충전한 피부약물전달체계는 시스템에서 가장 중요한 부분인 이온성 고분자 젤내의 이온성 기의 증가로 약물의 충진율이 극대화되어 약물의 충진율의 조절이 아주 용이하고 약물 방출율이 매트릭스내에서의 약물의 자체확산과 고분자 매트릭스 내에 이온기와 약물의 이온 결합의 형성과 분해에 의하여 조절되기 때문에 조절적인 약물의 방출율을 나타내는 발전된 형태의 피부약물전달체계를 제공한다.
Abstract:
본발명은본 발명은난용성약물이봉입된리포좀나노입자를포함하는장기안정성이우수한약학적제제및 이의제조방법에관한것으로써,본발명에따른난용성약물이봉입된리포좀나노입자크기는 30-900 nm로이를포함하는약학적제제의용해도를향상시키고, 장기안정성이우수하므로, 약물의생체이용률을향상시킬수 있다. 또한, 상기약학적제제는용이한제조방법으로제조할수 있으므로안정성이필요한난용성약물에유용하게적용할수 있다.