Results 41 to 50 of about 32,182 (218)

Study on detection of saliva fingerprint spectrum based on surface enhanced Raman scattering technology for screening of periodontitis [PDF]

Kouqiang yixue
Objective To explore the feasibility of using surface enhanced Raman scattering (SERS) to distinguish the saliva of patients with periodontitis from healthy people.
SHI Qian, YAN Ke, ZHANG Liying, WANG Xiaoqian
doaj   +1 more source

Surface Enhanced Raman Scattering Revealed by Interfacial Charge-Transfer Transitions

The Innovation, 2020
Surface enhanced Raman scattering (SERS) is a fingerprint spectral technique whose performance is highly dependent on the physicochemical properties of the substrate materials.
Shan Cong, Xiaohong Liu, Yuxiao Jiang, Wei Zhang, Zhigang Zhao   +4 more
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Templated green synthesis of plasmonic silver nanoparticles in onion epidermal cells suitable for surface-enhanced Raman and hyper-Raman scattering

Beilstein Journal of Nanotechnology, 2016
We report fast and simple green synthesis of plasmonic silver nanoparticles in the epidermal cells of onions after incubation with AgNO3 solution. The biological environment supports the generation of silver nanostructures in two ways.
Marta Espina Palanco, Klaus Bo Mogensen, Marina Gühlke, Zsuzsanna Heiner, Janina Kneipp, Katrin Kneipp   +5 more
doaj   +1 more source

Study of the effect of Persea americana seed in the green synthesis of silver nanoparticles and their antimicrobial properties

Results in Physics, 2019
This work details the green synthesis of silver nanoparticles (Ag NPs) using different concentrations of Persea americana seed extract. UV–Vis absorption spectra showed the characteristic surface plasmon resonance band of Ag NPs at 430 nm.
N.G. Girón-Vázquez, C.M. Gómez-Gutiérrez, C.A. Soto-Robles, O. Nava, E. Lugo-Medina, V.H. Castrejón-Sánchez, A.R. Vilchis-Nestor, P.A. Luque   +7 more
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Engineering of nanostructured plasmonic substrates for use as SERS sensors

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017
Plasmonic nanostructures strongly localize electric fields on their surfaces via the collective oscillations of conducting electrons under stimulation by incident light at certain wavelength.
O. V. Bandeliuk, V. H. Kolobrodov
doaj   +1 more source

Design of Surface Enhanced Raman Scattering (SERS) Nanosensor Array

Sensors, 2020
An advanced Surface-Enhanced Raman Scattering (SERS) Nanosensor Array, dedicated to serve in the future as a pH imager for the real-time detection of chemical reaction, is presented.
Yaakov Mandelbaum, Raz Mottes, Zeev Zalevsky, David Zitoun, Avi Karsenty   +4 more
doaj   +1 more source

Recent development of surface-enhanced Raman scattering for biosensing

Journal of Nanobiotechnology, 2023
Surface-Enhanced Raman Scattering (SERS) technology, as a powerful tool to identify molecular species by collecting molecular spectral signals at the single-molecule level, has achieved substantial progresses in the fields of environmental science ...
Chenglong Lin, Yanyan Li, Yusi Peng, Shuai Zhao, Meimei Xu, Lingxia Zhang, Zhengren Huang, Jianlin Shi, Yong Yang   +8 more
doaj   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source