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서원식,김윤도,정일엽,이호석,송기창,Seo, Won-Sik,Kim, Yun-Do,Choung, Il-Yeop,Lee, Ho-Seok,Song, Ki-Chang 한국세라믹학회 2006 한국세라믹학회지 Vol.43 No.4
Ag-Pd alloy nanoparticles were prepared by a chemical reduction method using hydrazine $(N_2H_4)$ as a reductant in $AgNO_3\;and\;Pd(NO_3)_2$ aqueous solutions. Characterization of these particles by X-ray powder diffraction revealed a bimetallic and crystalline silver-palladium alloy. The average size of the particles was influenced not by the reductant $(N_2H_4)$ concentration, but the concentration of the starting materials $(AgNO_3\;and\;Pd(NO_3)_2)$.
생분해성 고분자(PLGA)로 캡슐화한 Magnetite 나노입자의 제조
이호석(Ho Seok Lee),정일엽(Il Yeop Choung),송기창(Ki Chang Song),안양규(Yangkyu Ahn),최은정(Eun Chung Choi) 한국자기학회 2006 韓國磁氣學會誌 Vol.16 No.1
Magnetite nanoparticles encapsulated with biodegradable polymer [poly(D,L-lactide-co-glycolide), PLGA] were prepared by an emulsification-diffusion method. To investigate the effect of type of organic solvents on the mean particle sizes of obtained composite particles, different organic solvents [ethyl acetate (EA), propylene carbonate (PC) and acetone (ACE)] were used with a stabilizer [didodecyl dimethyl ammonium bromide (DMAB)]. The particle size of nanoparticles was observed by the dynamic light scattering method. When EA and PC as partially water-soluble solvents were used, small composite nanoparticles below 80 ㎚ were obtained, while large composite nanoparticles above 330 ㎚ were prepared for ACE as a fully water-soluble solvent.