Results 141 to 150 of about 50,796 (199)

Dynamic Surface Enhanced Raman Spectroscopy (SERS): Extracting SERS from Normal Raman Scattering

Analytical Chemistry, 2012
We have demonstrated two significant benefits of dynamic surface enhanced raman spectroscopy (DSERS) measurements: removal of instrumental and normal Raman interferences in surface enhanced raman spectroscopy (SERS) spectroscopy and site-selective spectroscopy of adsorbate populations on SERS-active particles. Our first example of shelled nanoparticles
B L, Scott, K T, Carron
openaire   +2 more sources

Raman and Surface-Enhanced Raman Scattering (SERS) Studies of the Thrombin-Binding Aptamer

IEEE Transactions on NanoBioscience, 2013
Surface-enhanced Raman scattering is used to study the Raman spectra and peak shifts the thrombin-binding aptamer (TBA) on substrates having two different geometries; one with a single stranded sequence and one with double stranded sequence. The Raman signals of the deoxyribonucleic acids on both substrates are enhanced and specific peaks of bases are ...
Tsai-Chin, Wu, Milana, Vasudev, Mitra, Dutta, Michael A, Stroscio   +3 more
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Raman microscopy and surface‐enhanced Raman scattering (SERS) for in situ analysis of biofilms

Journal of Biophotonics, 2010
AbstractBiofilms are communities of micro‐organisms enclosed in a matrix of extracellular polymeric substances (EPS). They represent a ubiquitous form of microbial life on Earth. Detailed information on chemical composition and structure of the EPS matrix is relevant in medicine, industry and technological processes.
Natalia P, Ivleva, Michael, Wagner, Harald, Horn, Reinhard, Niessner, Christoph, Haisch   +4 more
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Porous silicon as efficient surface enhanced Raman scattering (SERS) substrate

Applied Surface Science, 2008
Abstract Silver nanocrystallites are obtained through immersion of porous silicon samples in AgNO 3 solutions and a successive thermal annealing. The efficiency of nanostructures as surface enhanced Raman scattering (SERS) substrates is checked on cyanine-based dyes and horseradish peroxidase, evidencing detectable concentrations as low as 10 −7 to
GIORGIS, FABRIZIO, DESCROVI, EMILIANO, CHIODONI, ANGELICA, E. FRONER, M. SCARPA, VENTURELLO, ALBERTO, GEOBALDO, FRANCESCO   +6 more
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Basics of Surface-Enhanced Raman Scattering (SERS)

2015
Surface-enhanced Raman scattering (SERS) spectroscopy is based on the enormous enhancement of Raman scattering of molecules adsorbed on suitable metallic (mainly silver and gold) nanostructures. Two mechanisms contribute to the total enhancement: the electromagnetic one based on resonance excitations of surface plasmons in the metal and the chemical ...
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Determination of Nicotine by Surface-Enhanced Raman Scattering (SERS)

Applied Spectroscopy, 1994
The analytical application of surface-enhanced Raman spectroscopy (SERS) to the determination of nicotine is demonstrated. A simple spectroelectrochemical method using a copper or silver electrode as the SERS substrate has been developed, consisting of three steps: polishing a working electrode to a mirror finish; roughening the electrode in an ...
Tye E. Barber, Matthew S. List, John W. Haas, Eric A. Wachter   +3 more
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Emerging core–shell nanostructures for surface-enhanced Raman scattering (SERS) detection of pesticide residues

, 2021
Ting Wang, Shuangpeng Wang, Zehua Cheng, Jinchao Wei, Lele Yang, Zhang-Feng Zhong, Hao Hu, Yi-Tao Wang, Bingpu Zhou, Peng Li   +9 more
semanticscholar   +1 more source

Applications of surface-enhanced Raman scattering (SERS) substrate

2015 Asian Conference on Defence Technology (ACDT), 2015
Threats of explosive, toxic and narcotic substances continue growing importance to a number of places around the world. In many recent cases, the treats are coming from unprecedented well-funded, increasing sophisticated and highly mass propaganda of radical or criminal organizations.
Noppadon Nuntawong, Pitak Eiamchai, Saksorn Limwichean, Mati Horprathum, Viyapol Patthanasettakul, Pongpan Chindaudom   +5 more
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The role of cluster in surface-enhanced raman scattering (SERS)

Applied Physics B Photophysics and Laser Chemistry, 1989
Experimental study on differently prepared rough silver surfaces reveal the existence of stable clusters formed by the silver atoms. The clusters with certain adsorbed molecules serve as “Raman active sites”, which play an important role in SERS.
S. Y. Dong, G. Wang, W. Wang, Z. Zhang, J. Zheng   +4 more
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Surface Enhanced Raman Scattering (SERS) Using Nanoparticles

2015
Surface enhanced Raman spectroscopy (SERS) is one of the most promising label-free techniques for molecular sensing. In this chapter, we review the fundamental concepts of Raman spectroscopy and the need for SERS. We then discuss the fundamentals of SERS and focus on silver nanoparticles.
Altaf Khetani, Ali Momenpour, Vidhu S. Tiwari, Hanan Anis   +3 more
openaire   +1 more source