Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Kwang Su Ock"'
Autor:
Kwang-Su Ock, Sang-Woo Joo, Erdene-Ochir Ganbold, Semi Kim, Uuriintuya Dembereldorj, Hang-Cheol Shin, Jin Park
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 102:419-424
The structure and stability of d -penicillamine-capped gold nanoparticles ( d -Pen Au NPs) were studied using spectroscopic tools. The synthesis of d -Pen Au NPs was examined using high-resolution transmission electron microscopy (HR-TEM), UV–vis a
Autor:
Jin-Ho Park, Kwang-Su Ock, Sang-Woo Joo, Erdene-Ochir Ganbold, Keunchang Cho, So Yeong Lee, Won Il Jeon, Mira Kim, Ji Hye Seo
Publikováno v:
Analytical Chemistry. 84:2172-2178
We investigated in vitro and in vivo glutathione (GSH)-induced intracellular thiopurine anticancer drug release on gold nanoparticle (Au NP) surfaces by means of label-free confocal Raman spectroscopy. Direct monitoring of GSH-triggered release of 6-
Publikováno v:
Bulletin of the Korean Chemical Society. 32:3610-3613
CdS nanoparticles (NPs) were synthesized in an aqueous phase in order to investigate their spectral behaviors as efficient fluorescence resonance energy transfer (FRET) donors for various organic dye acceptors. Our prepared CdS NPs exhibiting strong
Publikováno v:
Journal of Raman Spectroscopy. 42:1614-1619
We study the adsorption behaviors of rhodamine dyes on gold nanoparticles (Au NPs) depending on their surface charges. Rhodamine 6G (Rh6G) dye is tested comparatively for positively and negatively charged Au NPs prepared by the reduction of chitosan
Publikováno v:
Bulletin of the Korean Chemical Society. 32:519-523
We studied the detection of the Hg(II) concentration in an aqueous solution using rhodamine dyes on citrate-reduced Au nanoparticles (NPs). The quenching effect from Au NPs was found to decrease as the Hg(II) concentration increased under our experim
Autor:
Jin-Ho Park, So Yeong Lee, Pan Dong Ryu, Jin Park, Soo Hwa Jang, Sang-Woo Joo, Saeromi Jeong, Kwang Su Ock, Sung Ik Yang, Seon Young Choi, Kang Taek Lee
Publikováno v:
Journal of Nanoparticle Research. 14
Cellular uptake, cytotoxicity, and mechanisms of cytotoxicity of the positively charged Au nanoparticles (NPs) were examined in A549 cells, which are one of the most characterized pulmonary cellular systems. Positively charged Au NPs were prepared by
Publikováno v:
Chemical communications (Cambridge, England). 48(35)
The intracellular glutathione-triggered release of the anticancer drug topotecan from gold nanoparticles in serum-containing media was directly monitored in real time using a label-free fluorescence live-cell imaging technique.
Autor:
Kwang Su Ock, Soo Hwa Jang, Jin Park, Sang-Woo Joo, Saeromi Jeong, Seon Young Choi, So Yeong Lee, Jin-Ho Park
Publikováno v:
Toxicology in vitro : an international journal published in association with BIBRA. 26(2)
We examined the cytotoxicity effect of the serum protein coated gold nanoparticles (AuNPs) in the A549 cells. Negatively charged AuNPs were prepared by chemical reduction using citrate. The dimension and surface charge of AuNPs were characterized usi
Autor:
Nam Woong Song, Kwang-Su Ock, Sang-Woo Joo, Erdene-Ochir Ganbold, Jin Park, Keunchang Cho, So Yeong Lee, Won Il Jeon, Ji Hye Seo, Jin-Ho Park
Publikováno v:
Journal of biomedical materials research. Part A. 100(5)
We investigate the cellular uptake behaviors and efficacy of folate-coated gold nanoparticles (AuNPs) for the targeted drug delivery system in human cancer cells. Folate-conjugated AuNPs embedded with a purine analogue cancer drug of 6-mercaptopurine
Autor:
Nam Woong Song, Jin-Ho Park, Jin Park, Erdene-Ochir Ganbold, Kwang-Su Ock, So Yeong Lee, Keunchang Cho, Sang-Woo Joo
Publikováno v:
Journal of colloid and interface science. 363(1)
Intracellular uptake of serum-coated gold nanoparticles (AuNPs) in a single mammalian cell was examined in order to investigate the interactions of cell culture media and aromatic thiol-functionalized gold surfaces using micro-spectroscopic tools. Th