Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Jongwan Choi"'
Publikováno v:
Micromachines, Vol 14, Iss 10, p 1899 (2023)
Background: Voltammetric analysis of the neurotransmitter epinephrine (EP) was performed using bismuth immobilized on a carbon nanotube paste electrode (BCE), whose properties were compared with those of a carbon nanotube paste electrode (CE). BCE wa
Externí odkaz:
https://doaj.org/article/e020d154a80847e48b01ee9d53330813
Publikováno v:
Amino Acids.
This paper describes the development of a voltammetric assay of insulin using a DNA immobilized onto a carbon nanotube paste electrode (CNPE), the peak potential of which was 0.2 V, vs. Ag/AgCl on the CNPE. The cyclic voltammetry (CV) and square-wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f16e2fad9df3b57508f66f2128f3a0ff
https://doi.org/10.1007/s00726-022-03172-2
https://doi.org/10.1007/s00726-022-03172-2
Publikováno v:
Journal of Industrial and Engineering Chemistry. 65:104-111
We report tuning of energy bandgap of nanosized carbon dots by chemical modification with electron-accepting moieties. The carbon dot derivatives were synthesized by oxidation and hydrothermal reaction, followed by addition/substitution reactions, re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aef43cda4ecaac1633c2c613031bc14
https://doi.org/10.1016/j.jiec.2018.04.018
https://doi.org/10.1016/j.jiec.2018.04.018
Publikováno v:
Journal of the Korean Physical Society. 72:599-603
Various gap sizes are investigated numerically to extract the local electric field enhancement from a gold sphere and disk dimer systems. Our simulations predict that a metallic disk dimer system(s) exhibit large local electric field enhancements at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3445455f7aa01d5d1536752a5649658
https://doi.org/10.3938/jkps.72.599
https://doi.org/10.3938/jkps.72.599
Autor:
Felix Sunjoo Kim, Jongwan Choi
Publikováno v:
Journal of the Korean Physical Society. 72:639-644
We studied the influence of photoanode thickness on the photovoltaic characteristics and impedance responses of the dye-sensitized solar cells based on a ruthenium dye containing a hexyloxyl-substituted carbazole unit (Ru-HCz). As the thickness of ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb52517034613049057b8b1c4c25db8f
https://doi.org/10.3938/jkps.72.639
https://doi.org/10.3938/jkps.72.639
Publikováno v:
Journal of Nanoscience and Nanotechnology. 17:7793-7798
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a280c0c96f1eec18a2817e17c43a973
https://doi.org/10.1166/jnn.2017.14844
https://doi.org/10.1166/jnn.2017.14844
Publikováno v:
Optics Letters. 45:6767
The ease of the molecular orientation of a chromophore has an important effect on the electro-optical (EO) properties of polymeric photorefractive (PR) composites. A derivative of 4-piperidinobenzylidene-malononitrile (PDCST) with an alkoxy group add
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73a078f3429dee11016533348a075dda
https://doi.org/10.1364/ol.409743
https://doi.org/10.1364/ol.409743
Publikováno v:
Journal of Alloys and Compounds. 671:360-365
We report synthesis of colloidal nanocrystals based on ZnSe core, (Cu,Mn)-doped ZnS inner-shell, and ZnS outer-shell by using an eco-friendly method and their optical properties. Synthesis of core/shell/shell nanocrystals was performed by using a one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a919c118112a8d021caf93b73ee34f7
https://doi.org/10.1016/j.jallcom.2016.02.049
https://doi.org/10.1016/j.jallcom.2016.02.049
Autor:
Heeseok Song, Jongwan Choi, Soo Young Kim, Nakjoong Kim, Hyeok Jeong, Felix Sunjoo Kim, Kimyung Kim
Publikováno v:
Polymer Bulletin. 73:2477-2484
We synthesized pyrrolidinofullerenes functionalized with an electron donor or acceptor group via Prato reaction. Their structures were studied using 1H-NMR, FT-IR and MALDI-TOF mass spectrometry. The electronic energy levels were calculated using qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b848ffe71fc35470bb0bfd570bbbc1c7
https://doi.org/10.1007/s00289-016-1675-6
https://doi.org/10.1007/s00289-016-1675-6
Autor:
Jongwan Choi, Heeseok Song, Jinkee Hong, Jin-Woo Oh, Nakjoong Kim, Felix Sunjoo Kim, Moonhyun Choi
Publikováno v:
Journal of the Korean Physical Society. 67:1998-2002
We studied a series of fullerene derivatives, which had been functionalized by an electron-donating group (triphenylamine) or an electron-accepting group (cyanobenzene), for use as photosensitizers in photoconducting polymer composites. The functiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::365a10d88932fb4585412ed10ba9f701
https://doi.org/10.3938/jkps.67.1998
https://doi.org/10.3938/jkps.67.1998