Proceedings ArticleDOI
Highly Ordered Nanostructures for Ultra-Sensitive SERS
Ajay Agarwal,Cheng Fang,K.D. Buddharaju,N. Balasubramanian,Dim-Lee Kwong,Nizamudin Mohamed Khalid,Shaik Mohamed Salim,Effendi Widjaja,Marc Garland +8 more
- pp 1923-1926
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TLDR
In this article, the surface treatment of cuvette and tubes used to handle Rhodamine 6G (R6G) and the substrate pre-treatment procedures, being significant for concentration less than 10-9 M, are elaborated.Abstract:
CMOS compatible silicon technologies are used to fabricate schematically arranged arrays of nanostructures for Surface Enhanced Raman Spectroscopy (SERS), incorporating processes like DUV photolithography, reactive ion etching and physical vapour deposition of silver and gold. The surface treatment of cuvette and tubes used to handle Rhodamine 6G (R6G) and the substrate pre-treatment procedures, being significant for concentration less than 10-9 M, are elaborated. The Raman signal is also enhanced by the addition of sodium chloride to R6G and by optimizing the sample immersion time in the analytes. 10-10 and 10-12 M R6G with 1 mM sodium chloride is detected on silver and gold terminated SERS substrates respectively.read more
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Dissertation
Development of a Platform for Surface Enhanced Raman Scattering Endoscopy
TL;DR: Molecular imaging using surface enhanced Raman scattering (SERS) nanoparticles represents a platform which is well-suited for cancer detection in-vivo and a method for reliably generating the SERS signal is demonstrated.
Dissertation
Oxygen Dynamics in Amorphous SIlicon Suboxide Resistive Switches
TL;DR: In this article, the authors used transmission electron microscopy characterisation and density functional theory modeling to improve the understanding of intrinsic resistive switching behavior in silicon suboxides using SVM.
References
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Journal ArticleDOI
Collective Theory for Surface Enhanced Raman Scattering.
TL;DR: For the first time it is possible to handle surfaces consisting of complex particles close enough to interact strongly, and a fully retarded implementation of Maxwell's equations on adaptive meshes allows treatment of large particles as well as small.
Journal ArticleDOI
Nanoparticle Optics: The Importance of Radiative Dipole Coupling in Two-Dimensional Nanoparticle Arrays †
Christy L. Haynes,Adam D. McFarland,Lin Lin Zhao,Richard P. Van Duyne,George C. Schatz,Linda Gunnarsson,Juris Prikulis,Bengt Herbert Kasemo,Mikael Käll +8 more
TL;DR: In this paper, the extinction spectra of two-dimensional arrays of Au and Ag cylinders and trigonal prisms that have been fabricated with electron beam lithography were studied by using coupled dipole calculations, and the observed spectral variations were in good qualitative agreement with experimental data.
Journal ArticleDOI
Surface-enhanced Raman spectroscopy in single living cells using gold nanoparticles
Katrin Kneipp,Abigail S. Haka,Harald Kneipp,Kamran Badizadegan,Noriko Yoshizawa,Charles W. Boone,Karen Shafer-Peltier,Jason T. Motz,Ramachandra R. Dasari,Michael S. Feld +9 more
TL;DR: In this paper, the effect of surface-enhanced Raman scattering (SERS) is exploited to detect the native chemical constituents of living cells, such as DNA and phenylalanine.
Journal ArticleDOI
Surface-enhanced Raman Scattering (SERS) method and instrumentation for genomics and biomedical analysis
TL;DR: A surface-enhanced Raman scattering (SERS) method and instrument for use in biomedical and genomics analysis is described in this article, which uses DNA gene probes based on SERS labels for gene detection and DNA mapping.
Journal ArticleDOI
Surface-Enhanced Raman Spectra of Calf Thymus DNA Adsorbed on Concentrated Silver Colloid
TL;DR: This method can be widely used to store the Ag colloid for long times and to obtain the SERS spectra of DNA molecules, and it can further be used to study the adsorption behavior of solute biomacromolecules in different solvents.