Results 21 to 30 of about 1,110,031 (286)

Modulated Raman spectroscopy for enhanced identification of bladder tumor cells in urine samples [PDF]

open access: yes, 2011
Standard Raman spectroscopy (SRS) is a noninvasive technique that is used in the biomedical field to discriminate between normal and cancer cells.
Herrington, C Simon   +22 more
core   +1 more source

Differentiation of Lipsticks by Raman Spectroscopy [PDF]

open access: yes, 2012
Dispersive Raman spectra have been obtained using a Raman microscope and an excitation wavelength of 632.8 nm from 69 lipsticks of various colours and from a range of manufacturers without any pre-treatment of the samples.
Salahioglu, Fatma, Went, Michael J.
core   +1 more source

Raman tweezers spectroscopy of live, single red and white blood cells. [PDF]

open access: yesPLoS ONE, 2010
An optical trap has been combined with a Raman spectrometer to make high-resolution measurements of Raman spectra of optically-immobilized, single, live red (RBC) and white blood cells (WBC) under physiological conditions.
Aseefhali Bankapur   +4 more
doaj   +1 more source

A Comparison of Phycocyanins from Three Different Species of Cyanobacteria Employing Resonance-Enhanced Coherent Anti-Stokes Raman Spectroscopy [PDF]

open access: yes, 1993
Resonance-enhanced coherent anti-Stokes Raman spectra are recorded for monomers and trimers of phycocyanin from three different cyanobacteria: Westiellopsis prolifica, Mastigocladus laminosus and Spirulina platensis.
L. Gottschalk   +13 more
core   +1 more source

Raman spectroscopic evaluation of human serum using metal plate and 785- and 1064-nm excitation lasers.

open access: yesPLoS ONE, 2019
In this study, we utilized a stainless steel (SUS304) plate for measuring the Raman scattering spectra of body fluid samples. Using this stainless steel plate, we recorded the Raman scattering spectra of 99.5% ethanol and human serum samples by ...
Hiroaki Ito   +4 more
doaj   +1 more source

Characterization of Coals and Coal Ashes with High Si Content Using Combined Second-Derivative Infrared Spectroscopy and Raman Spectroscopy

open access: yesCrystals, 2019
The organic and mineral components in two coals and resulting high-temperature ashes with high silicon content were characterized by second-derivative infrared spectroscopy, Raman spectroscopy, and X-ray diffraction (XRD).
Yanshan Yin   +7 more
doaj   +1 more source

Use of Handheld Raman Spectroscopy for Intraoperative Differentiation of Normal Brain Tissue From Intracranial Neoplasms in Dogs

open access: yesFrontiers in Veterinary Science, 2022
The aim of this study was to assess feasibility and accuracy of a hand-held, intraoperative Raman spectroscopy device as a neuronavigation aid to accurately detect neoplastic tissue from adjacent normal gray and white matter.
Caitlin E. Doran   +3 more
doaj   +1 more source

Raman Imaging of Plant Cell Walls in Sections of Cucumis sativus

open access: yesPlants, 2018
Raman microspectra combine information on chemical composition of plant tissues with spatial information. The contributions from the building blocks of the cell walls in the Raman spectra of plant tissues can vary in the microscopic sub-structures of the
Ingrid Zeise   +5 more
doaj   +1 more source

Raman Spectra Characteristics of Fluid Inclusion in the Shaanxi Formation of the Dingbian Area in the Ordos Basin

open access: yesYankuang ceshi, 2015
Raman Spectroscopy is an important means of non-destructive fluid inclusions analysis. Composition of fluid inclusions in quartz from the Shaanxi formation of the Dingbian area in the Ordos Basin was determined by the Raman technique.
LI Yan-xia, YAN Xin-yi, TIAN Yu-feng
doaj   +1 more source

Fused Raman spectroscopic analysis of blood and saliva delivers high accuracy for head and neck cancer diagnostics

open access: yesScientific Reports, 2022
As a rapid, label-free, non-destructive analytical measurement requiring little to no sample preparation, Raman spectroscopy shows great promise for liquid biopsy cancer detection and diagnosis.
Hanna J. Koster   +5 more
doaj   +1 more source

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