Results 21 to 30 of about 100,981 (208)

Mid-infrared chalcogenide slot waveguide plasmonic resonator sensor embedded with Au nanorods for surface-enhanced infrared absorption spectroscopy

Results in Physics, 2022
The problem of a traditional waveguide plasmonic resonator sensor is that part of the near-field intensity enhanced area is confined in the waveguide dielectric layer, which decreases the interaction effect between light and analyte.
Mingquan Pi, Huan Zhao, Chunguang Li, Yuting Min, Zihang Peng, Jialin Ji, Yijun Huang, Fang Song, Lei Liang, Yu Zhang, Yiding Wang, Frank K. Tittel, Chuantao Zheng   +12 more
doaj   +1 more source

Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing

Applied Sciences, 2020
We proposed a narrowband perfect absorber that was based on dielectric-metal metasurface for wide-band surface-enhanced infrared sensing. It is found that the narrowband perfect absorber can generate the hybrid guided modes with high quality-factor at ...
Guilian Lan, Zhongxie Jin, Jinpeng Nong, Peng Luo, Caicheng Guo, Zhengguo Sang, Lei Dong, Wei Wei   +7 more
doaj   +1 more source

Investigation on Optical Absorption and Reflection of Carbon Nanotubes Mixed Copper Composites for Laser Sintering Process Improvement

Metals, 2023
Selective laser sintering (SLS) of copper components manufactured via powder metallurgy is widely studied due to minimal material wastage. However, copper has poor optical absorption when exposed to infrared (IR) lasers, such as in laser-based additive ...
Hasan Ayub, Lehar Asip Khan, Eanna McCarthy, Inam Ul Ahad, Karsten Fleischer, Dermot Brabazon   +5 more
doaj   +1 more source

Self-assembled metal-oxide nanoparticles on GaAs: infrared absorption enabled by localized surface plasmons

Nanophotonics, 2021
Metal-oxides hold promise as superior plasmonic materials in the mid-infrared compared to metals, although their integration over established material technologies still remains challenging.
Martínez Castellano Eduardo, Tamayo-Arriola Julen, Montes Bajo Miguel, Gonzalo Alicia, Stanojević Lazar, Ulloa Jose María, Klymov Oleksii, Yeste Javier, Agouram Said, Muñoz Elías, Muñoz-Sanjosé Vicente, Hierro Adrian   +11 more
doaj   +1 more source

Potential-induced interfacial restructuring of a pyrrolidinium-based ionic liquid on an Au electrode: Effect of polarization of constituent ions

Electrochemistry Communications, 2019
Potential-induced restructuring of 1-propyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)amide [C3mpyr][TFSA] on an Au electrode has been investigated by using surface-enhanced infrared absorption spectroscopy (SEIRAS).
Kenta Motobayashi, Yuhei Shibamura, Katsuyoshi Ikeda   +2 more
doaj   +1 more source

Lattice Rayleigh Anomaly Associated Enhancement of NH and CH Stretching Modes on Gold Metasurfaces for Overtone Detection

Nanomaterials, 2020
Molecular overtones stretching modes that occupy the near-infrared (NIR) are weak compared to the fundamental vibrations. Here we report on the enhancement of absorption by molecular vibrations overtones via electromagnetic field enhancement of plasmonic
Daler R. Dadadzhanov, Tigran A. Vartanyan, Alina Karabchevsky   +2 more
doaj   +1 more source

(INVITED)Surface enhanced infrared absorption spectroscopy using plasmonic nanostructures: Alternative ultrasensitive on-chip biosensor technique

Results in Optics, 2022
The increasing demand for more reliable and cost effective biosensors has steered development of various novel biosensor platforms. Sensors based on optical techniques have attracted much attention because of their advantages, such as immune to ...
Mohammed Janneh
doaj   +1 more source

Interaction of HS1BP3 with cortactin modulates TKS5 localisation, cell secretion and cancer malignancy

Molecular Oncology, EarlyView.
Here, we demonstrate that HS1BP3 interacts with Cortactin through a proline‐rich region (PRR3.1) and show that this interaction, and HS1BP3 itself, promote cancer cell proliferation and invasion. Inhibition of this interaction leads to build‐up of TKS5 in multivesicular endosomes and altered secretion of CD63 and CD9, providing an explanation for the ...
Arja Arnesen Løchen, Kristiane Søreng, Chiara Veroni, Laura Trachsel‐Moncho, Nagham Asp, Robin Gaupset, Lars Gustav Lyckander, Helene Knævelsrud, Lars Eftang, Anne Simonsen   +9 more
wiley   +1 more source

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

FEBS 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, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Plasmonic enhanced mid-infrared InAs/GaSb superlattice photodetectors with the hybrid mode for wavelength-selective detection

AIP Advances, 2019
Photodetectors with superlattice active regions suffered from relatively low infrared absorption and thus limited responsivity, which has greatly restricted the development of mid-infrared detection technology.
Meng Xiong, Dan Su, Huan-Li Zhou, Jing-Yuan Wu, Sami Iqbal, Xiao-Yang Zhang, Tong Zhang   +6 more
doaj   +1 more source