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Extension of nano-scaled exploration into solution/liquid systems using tip-enhanced Raman scattering
Author(s): Prompong Pienpinijtham; Sanpon Vantasin; Yasutaka Kitahama; Sanong Ekgasit; Yukihiro Ozaki
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Paper Abstract

This review shows updated experimental cases of tip-enhanced Raman scattering (TERS) operated in solution/liquid systems. TERS in solution/liquid is still infancy, but very essential and challenging because crucial and complicated biological processes such as photosynthesis, biological electron transfer, and cellular respiration take place and undergo in water, electrolytes, or buffers. The measurements of dry samples do not reflect real activities in those kinds of systems. To deeply understand them, TERS in solution/liquid is needed to be developed. The first TERS experiment in solution/liquid is successfully performed in 2009. After that time, TERS in solution/liquid has gradually been developed. It shows a potential to study structural changes of biomembranes, opening the world of dynamic living cells. TERS is combined with electrochemical techniques, establishing electrochemical TERS (EC-TERS) in 2015. EC-TERS creates an interesting path to fulfil the knowledge about electrochemical-related reactions or processes. TERS tip can be functionalized with sensitive molecules to act as a “surface-enhanced Raman scattering (SERS) at tip” for investigating distinct properties of systems in solution/liquid e.g., pH and electron transfer mechanism. TERS setup is continuously under developing. Versatile geometry of the setup and a guideline of a systematic implementation for a setup of TERS in solution/liquid are proposed. New style of setup is also reported for TERS imaging in solution/liquid. From all of these, TERS in solution/liquid will expand a nano-scaled exploration into solution/liquid systems of various fields e.g., energy storages, catalysts, electronic devices, medicines, alternative energy sources, and build a next step of nanoscience and nanotechnology.

Paper Details

Date Published: 28 August 2017
PDF: 10 pages
Proc. SPIE 10350, Nanoimaging and Nanospectroscopy V, 1035003 (28 August 2017); doi: 10.1117/12.2275206
Show Author Affiliations
Prompong Pienpinijtham, Chulalongkorn Univ. (Thailand)
Sanpon Vantasin, Chulalongkorn Univ. (Thailand)
Yasutaka Kitahama, Kwansei Gakuin Univ. (Japan)
Sanong Ekgasit, Chulalongkorn Univ. (Thailand)
Yukihiro Ozaki, Kwansei Gakuin Univ. (Japan)


Published in SPIE Proceedings Vol. 10350:
Nanoimaging and Nanospectroscopy V
Prabhat Verma; Alexander Egner, Editor(s)

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