Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Kiju Um"'
Autor:
Joon Hee Jo, Hye Bin Yang, Hyungjoon Jeon, Kiju Um, Kang Taek Lee, Young Joo Kim, Hyo Jun Kim
Publikováno v:
Chemical Engineering Journal. 369:109-115
We have synthesized hybrid particles by embedding CdSe/ZnS quantum dots (QDs) into wrinkled silica nanoparticles. We found that increasing the QD loading decreased the quantum yield (QY) of the wrinkled silica-QD hybrid particles. Compared to the pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5786dda104798b459cd5d5397b2ea639
https://doi.org/10.1016/j.cej.2019.03.039
https://doi.org/10.1016/j.cej.2019.03.039
Publikováno v:
SID Symposium Digest of Technical Papers. 50:572-574
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66a7dc726a8a1705ebead6a9e94a75d7
https://doi.org/10.1002/sdtp.13571
https://doi.org/10.1002/sdtp.13571
Publikováno v:
RSC Advances. 6:5068-5078
Graphene quantum dots (GQD) with diameters as small as ∼2 nm were synthesized by an efficient chemo-mechanical technique. This involved mortar grinding and ultra-sonication as a means of mechanical energy transfer, while N-methyl-pyrrolidone and 1,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4a770d3d6090d3726e672db973cb8b3
https://doi.org/10.1039/c5ra21699k
https://doi.org/10.1039/c5ra21699k
Publikováno v:
RSC Advances. 6:98717-98721
We report a facile method for synthesizing hollow mesoporous zinc silicate nanoparticles. By reacting tetraethoxysilane, zinc acetate, cetyltrimethylammonium chloride, and a tri-block copolymer (F127) in water at 80 °C for 3 h and calcining the resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dff1a41d25cd23219b9bdb67d6f0f8f4
https://doi.org/10.1039/c6ra21255g
https://doi.org/10.1039/c6ra21255g
Autor:
Jinmo Park, Chang-Koo Kim, Taegyeong Kang, Hochan Chang, Kiju Um, Kang Taek Lee, DohChang Lee
Publikováno v:
Sensors and Actuators B: Chemical. 222:871-878
The fluorescence quenching of CdSe/CdS core/shell quantum dots (QDs) with various shell thicknesses is investigated. Inducing aggregation of the core/shell QDs with the addition of NaCl shows that the fluorescence quenching efficiency decreases monot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6f887ff472529d324f8378d4216b58f
https://doi.org/10.1016/j.snb.2015.09.036
https://doi.org/10.1016/j.snb.2015.09.036
Autor:
Kiju Um, Kang Taek Lee, Joon Hee Jo, Cheolsang Yoon, Young Joo Kim, Jungwook Kim, Kab Pil Yang
Publikováno v:
SID Symposium Digest of Technical Papers. 50:1673-1674
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56cee60146d2e930ce9f16478e13064f
https://doi.org/10.1002/sdtp.13273
https://doi.org/10.1002/sdtp.13273
Publikováno v:
Talanta. 182
A technique for wafer-level detection of organic contaminations via surface-assisted laser desorption/ionization time-of-flight mass spectrometry was developed. To replace the organic matrix in matrix-assisted laser desorption/ionization time-of-flig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bf443a36c9e755788642aece7aea03f
https://pubmed.ncbi.nlm.nih.gov/29501152
https://pubmed.ncbi.nlm.nih.gov/29501152
Publikováno v:
Chemistry of Materials. 27:2343-2349
We report a novel method to engineer a nanostructure of zinc silicate particles. In this method, a mixture of tetraethoxysilane, zinc acetate, and cetyltrimethylammonium chloride (CTAC) was reacted in water at 80 °C for ∼3 h, followed by calcinati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1828edd7a481e795a6f516a6fb09910
https://doi.org/10.1021/cm503768j
https://doi.org/10.1021/cm503768j
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 459:120-127
We have investigated the reduction of silver ions in a gold nanoparticle suspension by dihydroxybenzene isomers: hydroquinone (1,4-dihydroxybenzene), catechol (1,2-dihydroxybenzene), and resorcinol (1,3-dihydroxybenzene). We found that using these is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::206dc6bdc72ad6029dca2757a3af2bac
https://doi.org/10.1016/j.colsurfa.2014.06.050
https://doi.org/10.1016/j.colsurfa.2014.06.050
Autor:
Jae Hyun Lee, Heejae Han, Kang Taek Lee, Hye Jung Park, Yoon Hee Park, Kiju Um, Jung Won Park
Publikováno v:
Respiratory Research
RESPIRATORY RESEARCH(17)
RESPIRATORY RESEARCH(17)
Background: Silica nanoparticles (SNPs) can easily enter in respiratory system via inhalation because of their low molecular weight and ease of dispersion. Toxicity and adverse effects of SNPs vary according to the physical characteristics of the par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b26f47b2ef31b90fc878c8c36a354f1
http://europepmc.org/articles/PMC4870782
http://europepmc.org/articles/PMC4870782