Results 41 to 50 of about 270,214 (300)

Spectroscopic Study for The Pollutants Gelbstoff in Diyala River and Its Effect on Raman Spectrum [PDF]

open access: yesEngineering and Technology Journal, 2005
The aim of this project is to limit the pollutants Gelbstoff in Diyala River and its effect on Raman spectrum by using fluorescence and Raman technique .
Rafid Ali, Uday Nayef, Rafah Nasif
doaj   +1 more source

Surface-enhanced Raman spectroscopy of DNA bases [PDF]

open access: yes, 1986
A Raman microprobe has been used to measure the surface-enhanced Raman spectra of adenine, guanine, cytosine and thymine. Comparison of the SERS spectrum with solution spectra shows that some line positions are not influenced by the adsorption process ...
Greve, J.   +3 more
core   +3 more sources

The Raman redshift of graphene impacted by gold nanoparticles

open access: yesAIP Advances, 2015
The influence of gold nanoparticles (GNPs) on graphene was studied by Raman spectroscopy. It was found that the contact of GNPs could induce the whole Raman spectrum of graphene to redshift. And the shift of the 2D peak is more obvious than that of the G
Xiaoming Zheng   +7 more
doaj   +1 more source

Identification Characteristics of Natural and Synthetic Amethyst by Infrared and Polarized Raman Spectroscopy

open access: yesYankuang ceshi, 2019
BACKGROUND The identification of natural and synthetic amethyst is still a challenge for gemological laboratories either at home or abroad. Previous studies focus on twinning, color band, inclusions and the infrared spectrum.
HUANG Wen-qing   +7 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Effect of Fe Content on Raman Spectral Characteristics of Dolomite

open access: yesYankuang ceshi, 2023
BACKGROUNDDolomite is a common carbonate mineral in sedimentary rocks, and dolomite rock serves as an important reservoir rock for oil and gas. However, the production of synthetic dolomite under normal temperature and pressure is not yet possible, the ...
Jiang PANG   +6 more
doaj   +1 more source

Higgs Mode and Magnon Interactions in 2D Quantum Antiferromagnets from Raman Scattering

open access: yes, 2015
We present a theory for Raman scattering on 2D quantum antiferromagnets. The microscopic Fleury-Loudon Hamiltonian is expressed in terms of an effective $O(3)$ - model.
Weidinger, S. A., Zwerger, W.
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Detection and Classification of Multi-Type Cells by Using Confocal Raman Spectroscopy

open access: yesFrontiers in Chemistry, 2021
Tumor cells circulating in the peripheral blood are the prime cause of cancer metastasis and death, thus the identification and discrimination of these rare cells are crucial in the diagnostic of cancer. As a label-free detection method without invasion,
Jing Wen   +7 more
doaj   +1 more source

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