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Tunability of the Adsorbate Binding on Bimetallic ...
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Tailoring chemically converted graphenes using a water-soluble pyrene derivative with a zwitterionic arm for sensitive electrochemiluminescence-based analyses
| Journal | Biosensors and Bioelectronics |
|---|---|
| Author | Jihye Kwon, Seo Kyoung Park, Yongwoon Lee, Je Seung Lee and Joohoon Kim |
| Citation | Biosensors and Bioelectronics 87 2017 89?95 |
| DOI | http://dx.doi.org/10.1016/j.bios.2016.08.013 |
We report a method to tailor chemically converted graphenes (CCGs) using a water-soluble pyrene derivative (1) with a zwitterionic arm, and the feasibility of the tailored CCGs to sensitive electrochemiluminescence (ECL)-based analyses. The compound 1 serves the dual purpose of improving the dispersion of the CCGs in aqueous solutions and further tailoring the catalytic activity of the CCGs with dendrimer-encapsulated catalytic nanoparticles. As a model system, we conjugated dendrimer-encapsulated Pt nanoparticles to the 1-functionalized CCGs on indium tin oxide (ITO) electrodes. The resulting ITOs exhibited significantly increased ECL emission of the luminol/H2O2 ECL system; i.e. two orders-of-magnitude enhancement in the ECL compared to that obtained from bare ITOs, which allowed a ca. 154 times more sensitive ECL-based analysis of cholesterol using the modified ITOs compared with the use of bare ITOs.
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Tailoring chemically converted graphenes using a water-soluble pyrene derivative with a zwitterionic arm for sensitive electrochemiluminescence-based analyses
Category2017 AuthorJihye Kwon, Seo Kyoung Park, Yongwoon Lee, Je Seung Lee and Joohoon Kim JournalBiosensors and Bioelectronics CitationBiosensors and Bioelectronics 87 2017 89?95
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Tunability of the Adsorbate Binding on Bimetallic Alloy Nanoparticles for the Optimization of Catalytic Hydrogenation
Category2017 AuthorLong Luo, Zhiyao Duan, Hao Li, Joohoon Kim, Graeme Henkelman, and Richard M. Crooks JournalJ. Am. Chem. Soc. CitationJ. Am. Chem. Soc., 2017, 139 (15), pp 5538?5546 -
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Electrochemiluminescence of Water-Soluble Poly(amidoamine) Dendrimers Conjugated with Multiple Ru(II) Tris(bipyridine) Moieties
Category2017 AuthorHyein Lee, Joohoon Kim JournalChemElectroChem CitationChemElectroChem, 2017, 4, 1790 -
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Spontaneous Pt Deposition on Defective Surfaces of In2O3 Nanocrystals Confined within Cavities of Hollow Silica Nanoshells: Pt Catalyst-?Modified ITO Electrode with Enhanced ECL Performance
Category2017 AuthorYoung Shin Cho, Soo Min Kim, Youngwon Ju, Junghoon Kim, Ki-Wan Jeon, Seung Hwan Cho, Joohoon Kim, and In Su Lee JournalACS Appl. Mater. Interfaces CitationACS Appl. Mater. Interfaces 2017, 9, 24, 20728?20737
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