Thermally stable plasmonic nanocermets grown on micro-engineered surfaces as versatile SERS sensors for multi-analyte detection

Gupta, Nitant and Gupta, Disha and Aggarwal, S and Siddhanta, S and Barshilia, Harish C (2014) Thermally stable plasmonic nanocermets grown on micro-engineered surfaces as versatile SERS sensors for multi-analyte detection. ACS Applied Materials & Interfaces, 6 (24). pp. 22733-22742.

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Abstract

Noble metal nanoparticle-based plasmonic sensors, fabricated by top-down and colloidal routes, are widely used for high sensitivity detection of diverse analyte molecules using surface enhanced Raman spectroscopy (SERS). However, most of these sensors do not show stability under harsh environments, which limits their use as versatile SERS substrates. In this work, we report the first use of plasmonic nanocermets, grown on micro-engineered Si surfaces, as potential candidates for a highly robust SERS sensor. The robustness of the sensor is attributed to the anchoring of the nanoparticles in the nanocermet, which is an important factor for exploiting its reusability. The fairly uniform distribution of nanoparticles in the sensor led to high enhancement factors (106

Item Type:	Article
Additional Information:	Copyright to this article belongs to M/s. American Chemical Society
Uncontrolled Keywords:	Plasmonic nanocermets;Surface enhanced Raman spectroscopy;Ag nanoparticles;High thermal stability;Biomolecule detection
Subjects:	AERONAUTICS > Aeronautics (General)
Depositing User:	Ms. Alphones Mary
Date Deposited:	24 Jul 2015 09:56
Last Modified:	24 Jul 2015 09:56
URI:	http://nal-ir.nal.res.in/id/eprint/12250

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