2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 2. Amatore Intl. Symp. / on Electrochemistry for Sustainable Development
| Editors: | F. Kongoli, H. Inufasa, M. G. Boutelle , R. Compton, J.-M. Dubois, F. Murad |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 216 pages |
| ISBN: | 978-1-987820-84-3 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Plasmon Enhanced Spectroscopic and Electrochemical Detection of Biomolecules
Xing-Hua Xia1;1NANJING UNIVERSITY, Nanjing, China;
Type of Paper: Regular
Id Paper: 88
Topic: 47
Abstract:
The localized surface plasmon resonance (LSPR) arises from the collective oscillation of conduction electrons of metal nanostructures, which can be used to monitor recognition events of biomolecules at single nanoparticles [1]. The enhanced electric field around the nanostructures due to LSPR will significantly enhance the Raman scattering, fluorescence, and IR spectra, which enable the realization of single molecule detection. In addition, the LSPR will excite high-energy electron-hole pair (referred to as "hot electrons" and "hot holes") emerging on metal surface. The energetic charges will considerably affect the electrochemical reactions occurring at the nanoparticles. When the plasmonic metallic nanostructures are coupled to other substrates, for example, the semiconductor (i.e., TiO<sub>2</sub>, MoS<sub>2</sub>) and the plasmon-excited hot electron-hole at nanoparticle surface can communicate with the conductance and valence bands of the semiconductors, resulting in variation in electro/photocatalytic activity. In this talk, we will start with the study on the possibility of LSPR for monitoring biomolecules and their recognition events at single nanoparticles. [1] Then, we report the LSPR enhanced IR for biosensing. [2] In the third part, we will show how the LSPR accelerates electrochemical reactions of electroactive biomolecules, such as glucose on gold nanoparticles and hydrogen evolution reaction at molybdenum disulphide nanosheets. [3] Based on the plasmonics accelerated electrochemical reactions (PAER), high sensitive electrochemical biosensors for detection of glucose and other electroactive biomolecules have been constructed.
Keywords:
Bioelectrochemical sensors; Bioelectrochemistry; Electrochemistry; Physical electrochemistry;References:
[1] (a) Y. Zhao, et al. Anal. Chem. 2013, 85: 1053; (b) Y. Zhao, et al. Chem. Commun. 2014, 50: 5480.[2] (a) J.Y. Xu, B. Jin, Y. Zhao, K. Wang, X.H. Xia, Chem. Commun. 2012, 48: 3052; 187. (b) B. Jin, G. X. Wang, D. Millo, P. Hildebrandt, X. H. Xia, J. Phys. Chem. C 2012, 116: 13038; (c) B. Jin, W. J. Bao, Z. Q. Wu, X. H. Xia, Langmuir 2012, 28: 9460; (d) J. Y. Xu, T. W. Chen, W. J. Bao, K. Wang, X. H. Xia, Langmuir 2012, 28: 17564; (e) W. J. Bao, Z. D. Yan, M. Wang, Y. Zhao, J. Li, K. Wang, X. H. Xia, Z. L. Wang, Chem. Commun. 2014, 50: 7787.
[3] (a) Y. Shi, J. Wang, C. Wang, T.T. Zhai, W.J. Bao, J.J. Xu, X.H. Xia, H.Y. Chen, J. Am. Chem. Soc. 2015, 137: 7365-7370. (b) C. Wang, Y. Shi, Yuan-Yuan Dan, X.G. Nie, Jian Li, X.H. Xia, Chem. Eur. J. 2017, 23: 6717-6723. (c) Y. Shi, Y. Zhou, D.R. Yang, W.X. Xu, C. Wang, F.B. Wang, J.J. Xu, X.H. Xia, H.Y. Chen, J. Am. Chem. Soc. 2017, 139: 15479-15485; (d) C. Wang, Y. Shi, D. R. Yang, X.H. Xia, Curr. Opin. Electrochem. 2018, 7:95-102.