Results 41 to 50 of about 24,337,042 (308)

Phase-sensitive detection in Raman Tweezers: biological applications [PDF]

, 2008
In the biomedicine field, scientists act as detectives working hard to unravel the mysteries surrounding cells. To this end, Raman spectroscopy has revealed itself particularly useful, providing information concerning both the chemical composition and ...
De Luca, Anna Chiara
core   +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

Strain Relaxation Effect on the Peak Wavelength of Blue InGaN/GaN Multi-Quantum Well Micro-LEDs

Applied Sciences, 2022
In this paper, the edge strain relaxation of InGaN/GaN MQW micro-pillars is studied. Micro-pillar arrays with a diameter of 3–20 μm were prepared on a blue GaN LED wafer by inductively coupled plasma (ICP) etching.
Chaoqiang Zhang, Ke Gao, Fei Wang, Zhiming Chen, Philip Shields, Sean Lee, Yanqin Wang, Dongyan Zhang, Hongwei Liu, Pingjuan Niu   +9 more
doaj   +1 more source

Label-free haemogram using wavelength modulated Raman spectroscopy for identifying immune-cell subset [PDF]

, 2014
The authors thank the UK EPSRC the CR-UK/EPSRC/MRC/DoH (England) imaging Program and the European Union project FAMOS (FP7 ICT, contract no. 317744) for funding, K.D. is a Royal Society-Wolfson Merit Award Holder.Leucocytes in the blood of mammals form a
Bavishna B. Praveen, Powis, S.J., Campbell, E.C., Ashok, P.C., Praveen, B.B., Simon J. Powis, Dholakia, K., Praveen C. Ashok, Elaine C. Campbell, Kishan Dholakia, Powis, S.J.; id_orcid   +10 more
core   +1 more source

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
Nobrega, Juliana B. Olivato, Carmen M. O. Müller, Fabio Yamashita   +3 more
doaj   +3 more sources

Effects of Temperature on the FT NIR Raman Spectra of Fish Skin Collagen

Applied Sciences, 2021
The development of regenerative medicine turns attention toward native collagen as a biocompatible material. Particularly interesting is fish skin collagen, which is relatively easy to extract comparing mammalian tissues and free of some pathogens that ...
Maria Połomska, Leszek Kubisz, Jacek Wolak, Dorota Hojan-Jezierska   +3 more
doaj   +1 more source

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

Recent advances of Raman spectroscopy for the analysis of bacteria

Analytical Science Advances, 2023
Rapid and sensitive bacteria detection and identification are becoming increasingly important for a wide range of areas including the control of food safety, the prevention of infectious diseases, and environmental monitoring.
Linsey Rodriguez, Zhiyun Zhang, Danhui Wang   +2 more
doaj   +1 more source

Label-free opto-physicochemical profiling of eosinophils reveals molecular and structural signatures for EGPA diagnosis

Materials Today Advances
Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare disease that requires accurate diagnostic methods to overcome the limitations of current diagnostic criteria relying on clinical observation.
Minju Cho, Joon Seup Hwang, Ji-Hyang Lee, Yu-ra Ha, You Sook Cho, Chan-Gi Pack, Jun Ki Kim   +6 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