Results 21 to 30 of about 62,632 (118)

Biodegradable starch-based films containing saturated fatty acids: thermal, infrared and raman spectroscopic characterization

Polímeros, 2012
Biodegradable films of thermoplastic starch and poly (butylene adipate co-terephthalate) (PBAT) containing fatty acids were characterized thermally and with infrared and Raman spectroscopies. The symmetrical character of the benzene ring in PBAT provided
Marcelo M. Nobrega, Juliana B. Olivato, Carmen M. O. Müller, Fabio Yamashita   +3 more
doaj   +3 more sources

A Tunable Freeform-Segmented Reflector in a Microfluidic System for Conventional and Surface-Enhanced Raman Spectroscopy

Sensors, 2020
We present a freeform-segmented reflector-based microfluidic system for conventional Raman and Surface-Enhanced Raman Scattering (SERS) analysis. The segmented reflector is directly designed by a numerical approach.
Qing Liu, Michael Stenbæk Schmidt, Hugo Thienpont, Heidi Ottevaere   +3 more
doaj   +1 more source

Hydrogel-Core Microstructured Polymer Optical Fibers for Selective Fiber Enhanced Raman Spectroscopy

Sensors, 2021
A new approach of Fiber Enhanced Raman Spectroscopy (FERS) is described within this article based on the use of Hydrogel-Core microstructured Polymer Optical Fibers (HyC-mPOF).
Mikel Azkune, Igor Ayesta, Leire Ruiz-Rubio, Eneko Arrospide, Jose Luis Vilas-Vilela, Joseba Zubia   +5 more
doaj   +1 more source

Cost-Effective Raman Spectra Acquisition Based on Spreading Code Modulation for Exciting Light

IEEE Photonics Journal
Raman spectroscopy is a powerful, non-destructive analytical tool that is widely used across various fields for identifying molecular structures and reactions. However, Raman spectroscopy may be hindered by background and fluorescence noises.
Yu Wan, Jiahe Zhang, Cheng Chen, Xiaoyi Lv, Xi Yang, Yan Huang, Xiangwei Zhao   +6 more
doaj   +1 more source

Collaborative Penalized Least Squares for Background Correction of Multiple Raman Spectra

Journal of Analytical Methods in Chemistry, 2018
Although Raman spectroscopy has been widely used as a noninvasive analytical tool in various applications, backgrounds in Raman spectra impair its performance in quantitative analysis.
Long Chen, Yingwen Wu, Tianjun Li, Zhuo Chen   +3 more
doaj   +1 more source

In vivo micro-Raman spectroscopy from an arbitrary-shaped region of interest under simultaneous reflectance confocal imaging guidance

APL Photonics
Confocal Raman spectroscopy (CRS) has been widely used for noninvasive biochemical analysis of biological tissue in vivo. Currently, reflectance confocal microscopy (RCM) has been integrated with CRS as visual guidance for a square-/rectangular-shaped ...
Zhenguo Wu, Liwei Jiang, Jianhua Zhao, Harvey Lui, Haishan Zeng   +4 more
doaj   +1 more source

The Effects of Interacting With a Paro Robot After a Stressor in Patients With Psoriasis: A Randomised Pilot Study

Frontiers in Psychology, 2022
ObjectiveStress can play a role in the onset and exacerbation of psoriasis. Psychological interventions to reduce stress have been shown to improve psychological and psoriasis-related outcomes.
Mikaela Law, Paul Jarrett, Paul Jarrett, Michel K. Nieuwoudt, Michel K. Nieuwoudt, Michel K. Nieuwoudt, Michel K. Nieuwoudt, Hannah Holtkamp, Hannah Holtkamp, Hannah Holtkamp, Hannah Holtkamp, Cannon Giglio, Cannon Giglio, Elizabeth Broadbent   +13 more
doaj   +1 more source

A SIGNAL ENHANCED PORTABLE RAMAN PROBE FOR ANESTHETIC GAS MONITORING [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
The spontaneous Raman scattering technique is an excellent tool for a quantitative analysis of multi-species gas mixtures. It is a noninvasive optical method for species identification and gas phase concentration measurement of all Raman active molecules,
S. Schlüter, S. Asbach, N. Popovska-Leipertz, T. Seeger, A. Leipertz   +4 more
doaj   +1 more source

Non-destructive Localization and Identification of Active Pharmaceutical Compounds by Raman Chemical Imaging

CHIMIA, 2013
Raman spectroscopy is a powerful and non-destructive technique for chemical and structural identification. Based on inelastic scattering of laser light by molecular vibrations, the analysis can be localized on a microscopic area when combined ...
Pierre Brodard, Samuel Roth, Olivier Vorlet   +2 more
doaj   +1 more source

Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy

Journal of the European Optical Society-Rapid Publications, 2019
Raising the interest in remote chemical analysis, in particular through Raman and fluorescence spectroscopy, the opportunity of increasing the exposure represents an important step for an easier and more reliable spectrum analysis.
Federico Angelini, Francesco Colao
doaj   +1 more source