In this study, we investigated antibacterial effects of silver nano-particles on Escherichia coli, the ... The bioaerosols containing each bacterial culture were contacted with silver nano-particles sprayed in ... Experimental results showed that the silver nano-particles had strong antibacterial activity against
However, little is known about the effects of micro- and nano-particles during mouse embryo organogenesis ... Significantly decreased levels of CuZn-SOD, Mn-SOD, cGPx, and PHGPx mRNA were observed in the ZnO-treated ... Jong-Geol Lee, Ki Youn Jung, Hansung Na, Myeon-Woo Chung, Beom Jun Lee, Young Won Yun
The spherical silver particles with average particle diameter of 100 nm were obtained under the optimum ... The phase of obtained silver particles was crystalline state and the silver particles were relatively ... The obtained silver particles were characterized by XRD, SEM, TEM, and BET.
magnetic behaviors were examined by X-ray diffraction and Mossbauer spectra. ... The magnetic alloys of Cu-Fe () were prepared by a mechanical alloying method and their structural and
Nanocrystalline transient aluminas (-alumina) were coated on core particles (-alumina) by a carbonate ... AACH with a size of 5 nm was coated on the core alumina particle at pH 9. whereas rod shape and large ... The AACH was tightly bonded coated on the core particle due to formation of surface complexes by the
The porous nanoparticles were prepared by leaching for Al-Cu alloy nano powders in 40wt% NaOH aqueous ... Al-Cu alloy nano powders have been produced by the electrical explosion of Cu-plated Al wire. ... It is demonstrated that porous nanoparticles could be obtained by selective leaching of alloy nano powder
The electrophoretic deposition process of Ni nano-particles in organic suspension was employed for self-repairing ... For this purpose, Ni nano-particles prepared by levitational gas condensation method were dispersed into ... For electrophoretic deposition of Ni nano-particles on the Ni alloy specimen, constant electric fields
Nanoparticles of with a mean particle size of 4-30 nm have been prepared by a pulsed wire evaporation ... size distribution yielding 20 nm of average particle size. ... the main peak intensity of XRD and absorption rate of Mossbauer spectrum, the amounts of and in as-prepared
The TEM micrograph of ball milled powder for 200 hours shows formation of nano-particles, less than 20 ... It was noted that the as-solidified particle size of decreases during the first 48 hours and then increases ... Al-l4wt.
생분해성 고분자를 이용한 nanoparticles 제조 暻園大學校 化學生命工學科 鄭東鉉 목차 Ⅰ. 서론 Ⅱ. 이론적고찰 1. 연구배경 2. 이론적배경 Ⅲ. 실험방법 Ⅳ. ... lactic acid) 공중합체를 제조하였으며, nano-precipitation 이용하여 나노입자를 제조하였다. ... 또한 이러한 나노 입자의 의약전달 시스템으로 활용은 다양한 방법으로 시도되고 있으며 그 중 대표적인 예로서 백신, 면역 조절제로 사용되는 virus-like particles, 난용성
만들고 그 위에 NanoParticles을 Immobilization 하는 실험을 통해 bottom-up적인 nano 기술을 익혀본다. ? ... 물질 분석 실험 결과보고서 Characterization of Self-assembled Monolayers and Nano-particles ? ... 그러나 이번 실험에서는 reflrection-absorption infrare particle용액은 Au nanoparticle끼리 뭉치면서 검게 변했다.
즉, AuNPs의 용액에 있던 nano gold particle이 PS-b-P4VP inve particle이 있는 것을 볼 수 있다. 30분 넣어둔 곳에서는 빈 공간에 2-3개의 ... nanoparticle이 육안으로 관찰되었고 60분 넣어둔 곳에는 4개 정도의 nanoparticle이 micelle안에 들어간 것을 볼 수 있는데 최대 7개까지 발견되었다. ... Abstract AuNPs를 합성하고 nano gold particle을 만드는 과정에서의 색 변화를 확인한다.
Nano-sized Zinc selenide (ZnSe) powder was successfully synthesized using Zn and Se precursors in a ... particles showed that absorptions occurred at 380 nm in the UV-Vis spectrum. ... The precipitated particles were inactive in the UV-Vis absorption investigation, whereas the colloidal
A Nanoparticle is a small particle with at least one dimension less than 100 nm Nanoparticle is currently ... of AGZ020, Nano silver, P-25 and SnO were 22%, 52%, 58% and 76%, respectively. ... 은(Ag)이 2% 함유된 AGZ020, Nano silver 및 P-25의 나노입자와 주석산화물인 SnO의 나노입자는 24시간 경과 후 0.05ppm 농도에서 각 각 22%, 52%
raw material solution, the present study was intended to prepare nano-sized cobalt oxide (Co3O4) powder ... particles increased from about 25 nm to 40 nm, while the average particle size did not show significant ... In order to identify changes in the nature of the particles due to changes in the inflow rate of the
고온에서 nanoparticle의 합성이 이뤄진다는 점에 맞게 Se를 녹이기 위한 용매로 끓는 점이 높은 1-octadecene을 사용되었다. ... 또한 spectrum의 band width를 통해 합성된 nanoparticles의 size 분포를 파악할 수 있다. ... 반응 시간에 따라 nanoparticle의 size가 달라지기 때문에 selenium을 넣은 즉시 시간을 측정해야 한다.