Results 161 to 170 of about 14,779 (263)

Emerging frontiers in SERS-integrated optical waveguides: advancing portable and ultra-sensitive detection for trace liquid analysis. [PDF]

open access: yesLight Sci Appl
Gao D   +14 more
europepmc   +1 more source

Highly conductive and robust epidermal dry electrode for long‐term interval biopotential monitoring

open access: yesFlexMat, EarlyView.
A freestanding PVA‐PBFDO conductive dry electrode combines high conductivity, flexibility, and environmental stability to enable long‐term, high‐fidelity electrophysiological (EP) signal monitoring. Its patterning capability further facilitates the fabrication of wearable and multi‐channel bioelectronic devices.
Anni Sun   +10 more
wiley   +1 more source

A visible‐to‐infrared miniaturized indium selenide spectrometer enabled by a gate‐tunable spectral response matrix

open access: yesInfoScience, EarlyView.
Traditional light‐analyzing tools, known as spectrometers, are typically too bulky and expensive to fit into portable electronics like smartphones or wearables. In this study, we developed a microscopic, high‐performance spectrometer using a material called Indium Selenide combined with smart algorithms to accurately analyze light from the visible to ...
Jing Chen   +8 more
wiley   +1 more source

Label-free multimodal nonlinear microscopy enabled by an optical parametric generator. [PDF]

open access: yesAPL Photonics
De la Cadena A   +4 more
europepmc   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

open access: yesInfoScience, EarlyView.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong   +8 more
wiley   +1 more source

Investigation of the Photoprotective Effects of Various Pigments Against Laser-Marking of Pharmaceutical Tablets. [PDF]

open access: yesPharmaceutics
Shammout H   +10 more
europepmc   +1 more source

Enhanced spontaneous polarization in directional interlayer sliding γ‐InSe for self‐powered, all‐day visual adaptation and motion perception

open access: yesInfoMat, EarlyView.
This study develops a retinal‐inspired optoelectronic sensor based on two‐dimensional γ‐InSe, wherein engineered interlayer sliding enhanced spontaneous polarization. The system utilizes the photo‐pyroelectric effect to simulate the snake's all‐day visual function.
Qingbin Wang   +9 more
wiley   +1 more source

Transmission Raman Spectroscopy (TRS) for Accurate Authentication of API in Coated Hydroxychloroquine (HCQ) Tablets

open access: yesJournal of Raman Spectroscopy, EarlyView.
We report the development and use of a transmission Raman spectroscopy (TRS) system for a more accurate but nonintrusive way of authentication of API in coated HCQ tablets which otherwise is not possible using the backscattered (BS) configuration of Raman spectroscopy. The coating interference is found to be almost zero in case of the TRS and a greater
Vijay Kumar   +5 more
wiley   +1 more source

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