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The Preparation of Chitin Gel using α,β,γ-Chitin as a Sustained Release Matrices Forms
공병기,임동한,최혜영,최창용,장미경,정창남,나재운 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
α, β, γ-chitin were isolated from natural resources by treatment with NaOH solution and for deprotenization, and then by treatment with dilute HCI solution for demineralization. The chitin gel matrices were prepared using α, β, γ-chitin for application of drug delivery systems. In this study, α,β,γ-chitin were isolated from crab shell, squid pen and beetles of cuticle, respectively, and physicochemical properties were investigated using fourier transform infrared spectrometer, X-ray diffractometer, and differential scanning calorimeter. And then the chitin gel matrices were prepared using α, β, γ-chitin and dissolution characteristics of drug from chitin gel matrices were investigated The dissolution profiles of α,β,γ-chitin gel matrices were determined by means of available compendium. Dissolution efficiency of these gel matrices were observed at 37±0.5°C.
졸-겔 법에 의해 제조된 광촉매 화합물의 항균 및 탈취 특성
공병기,최창용,나상권,나재운 한국공업화학회 2004 응용화학 Vol.8 No.1
Photocatalysis, which can be applied to get energy economically, to synthesis useful materials, and to remove environmentally harmful materials by transforming solar energy to chemical energy, has many advantages. In this study, photocatalystic compound was prepared by sol-gel technique for antimicrobial activity and deodorization. It showed that in case of deodorization, formaldehyde and ammonia were degraded by 98.3 and 97.1%, respectively. In addition, this compound gives the highest efficiency for disinfection of E. coli and S. aureus.