Results 41 to 50 of about 2,195,413 (379)

Isomorphic Substitution in Vanadinite [Pb5(VO4)3C1] - Raman Spectroscopic Study [PDF]

open access: yes, 2003
The Raman and infrared spectroscopy of three vanadinite [Pb5(VO4)Cl] specimens from three localities has been studied. Single crystal Raman spectra were obtained and the spectra were found to be both orientation and temperature dependent.
Adams   +20 more
core   +2 more sources

Quantifying defects in graphene via Raman spectroscopy at different excitation energies. [PDF]

open access: yesNano letters (Print), 2011
We present a Raman study of Ar(+)-bombarded graphene samples with increasing ion doses. This allows us to have a controlled, increasing, amount of defects.
L. G. Cançado   +9 more
semanticscholar   +1 more source

Modulated Raman Spectroscopy for Enhanced Cancer Diagnosis at the Cellular Level

open access: yesSensors, 2015
Raman spectroscopy is emerging as a promising and novel biophotonics tool for non-invasive, real-time diagnosis of tissue and cell abnormalities. However, the presence of a strong fluorescence background is a key issue that can detract from the use of ...
Anna Chiara De Luca   +2 more
doaj   +1 more source

Nonscanning large-area Raman imaging for ex vivo/in vivo skin cancer discrimination

open access: yes, 2018
Imaging Raman spectroscopy can be used to identify cancerous tissue. Traditionally, a step-by-step scanning of the sample is applied to generate a Raman image, which, however, is too slow for routine examination of patients. By transferring the technique
Darvin, Maxim E.   +6 more
core   +1 more source

High-Resolution Near-Field Raman Microscopy of Single-Walled Carbon Nanotubes [PDF]

open access: yes, 2003
We present near-field Raman spectroscopy and imaging of single isolated single-walled carbon nanotubes with a spatial resolution of ≈25  nm. The near-field origin of the image contrast is confirmed by the measured dependence of the Raman scattering ...
Achim Hartschuh   +4 more
core   +2 more sources

FAST CARS: Engineering a Laser Spectroscopic Technique for Rapid Identification of Bacterial Spores [PDF]

open access: yes, 2002
Airborne contaminants, e.g., bacterial spores, are usually analyzed by time consuming microscopic, chemical and biological assays. Current research into real time laser spectroscopic detectors of such contaminants is based on e.g.
A. Rebane   +34 more
core   +4 more sources

Photoinduced Inhibition of Neutrophil Extracellular Traps Formation by Dichromatic Light Irradiation

open access: yesCurrent Issues in Molecular Biology
Neutrophils are the first line of defense of the human immune system against pathogens. Photobiomodulation, mediated by mitochondrial photoacceptors such as cytochrome c oxidase, has emerged as a method to modulate neutrophil function through targeted ...
Kahramon Mamatkulov   +4 more
doaj   +1 more source

Raman Topography and Strain Uniformity of Large-Area Epitaxial Graphene

open access: yes, 2008
We report results from two-dimensional Raman spectroscopy studies of large-area epitaxial graphene grown on SiC. Our work reveals unexpectedly large variation in Raman peak position across the sample resulting from inhomogeneity in the strain of the ...
Berger C   +17 more
core   +1 more source

Raman Spectroscopy of Graphene Edges [PDF]

open access: yesNano Letters, 2009
Graphene edges are of particular interest since their orientation determines the electronic properties. Here we present a detailed Raman investigation of graphene flakes with edges oriented at different crystallographic directions. We also develop a real space theory for Raman scattering to analyze the general case of disordered edges.
C. Casiraghi   +8 more
openaire   +6 more sources

Raman spectroscopy of graphene-based materials and its applications in related devices.

open access: yesChemical Society Reviews, 2018
Graphene-based materials exhibit remarkable electronic, optical, and mechanical properties, which has resulted in both high scientific interest and huge potential for a variety of applications.
Jiang-Bin Wu   +4 more
semanticscholar   +1 more source

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