Results 91 to 100 of about 46,542 (265)

Electroactive 3D Porous Graphene Foam Impedimetric Biosensor for Ultrasensitive Detection of MCF‐7‐Cells‐Derived Extracellular Vesicles in Human Serum

Advanced Materials Technologies, EarlyView.
A label‐free impedimetric biosensor based on electroactive 3D porous graphene foam enables ultrasensitive and selective detection of CD81 protein and MCF‐7 cell‐derived extracellular vesicles in human serum. Detection limits of 0.048 fg/mL for CD81 and ∼24 EVs/mL are achieved, demonstrating a robust platform for selective, label‐free, and ...
Michael Robert Furness, Ashish Kalkal, Tia Wardlaw, Jessica Valli, Suresh Chandra Baral, Pablo Lozano Sanchez, Marco Caffio, Sudhagar Pitchaimuthu, Olga Oikonomidou, Jason Webber, Nick R. Leslie, Anitha Devadoss   +11 more
wiley   +1 more source

Detection of Glutamate Encapsulated in Liposomes by Optical Trapping Raman Spectroscopy

ACS Omega, 2022
Kyoko Masui, Yasunori Nawa, Shunsuke Tokumitsu, Takahiro Nagano, Makoto Kawarai, Hirokazu Tanaka, Tatsuki Hamamoto, Wataru Minoshima, Tomomi Tani, Satoshi Fujita, Hidekazu Ishitobi, Chie Hosokawa, Yasushi Inouye   +12 more
doaj   +1 more source

Multi-Way Fluorescence Technique Combined with Four-Way Calibration for the Determination of Thiabendazole and Carbaryl in Apple

Chemosensors
In this study, an excitation–emission–pH multi-way fluorescence technique coupled with a third-order calibration method based on an alternating quadrilinear decomposition (AQLD) algorithm was proposed for the simultaneous determination of thiabendazole ...
Haiyan Chang, Hailong Wu, Tong Wang, Xiaozhi Wang, Ruqin Yu   +4 more
doaj   +1 more source

Unveiling the Hidden Geometry of OECTs: Contact‐Semiconductor Overlap Driven Errors in Volumetric Capacitance

Advanced Materials Technologies, EarlyView.
This work examines how contact–semiconductor overlap influences volumetric capacitance extraction in organic electrochemical transistors as device dimensions shrink. It shows that neglecting overlap leads to systematic, geometry‐driven errors in capacitance values.
Renan Colucci, Marcos Luginieski, Germán D. Gómez Higuita, Gerwin Dijk, Bianca de A. Feitosa, Yaakov Tuchman, Alberto Salleo, Gregório Couto Faria   +7 more
wiley   +1 more source

Electroreductive alkylations of (hetero)arenes with carboxylic acids

Nature Communications
Carboxylic acids are widely available and generally inexpensive from abundant biomass feedstocks, and they are suitable and generic coupling partners in synthetic chemistry.
Bing Wang, Xianshuai Huang, Huihua Bi, Jie Liu   +3 more
doaj   +1 more source

Protocol for survival assay of Caenorhabditis elegans to Pseudomonas aeruginosa PA14 infection

STAR Protocols
Summary: The nematode Caenorhabditis elegans is a powerful model organism for studying the molecular and cellular mechanisms of innate immunity governed by the intestine. Here, we present a protocol to perform C.
Junqiang Liu, Ming Lei, Mengqi Wang, Shu Chen, Haijun Tu   +4 more
doaj   +1 more source

Ultrathin and Flexible Organic Light‐Addressable Potentiometric Sensors

Advanced Materials Technologies, EarlyView.
The first ultrathin, fully organic, and flexible light‐addressable potentiometric sensor (LAPS) is demonstrated. With a thickness of only 2.3–2.9 µm, this standalone film offers sensitivity to electrolyte potential and stable performance for over 170 days.
Ami Ichikawa, Yudai Hemmi, Yuanyuan Guo, Georgios Bairaktaris, Carl Frederik Werner, Tomohiko Murayama, Hiroyuki Matsui   +6 more
wiley   +1 more source

Harnessing PV-oxirene for the modular synthesis of α-Oxy carbonyls

Nature Communications
α-Oxy carbonyl compounds, characterized by their distinct electronic and topological properties, represent highly versatile building blocks and modifiers for functional molecules.
Shisheng Huang, Deen Duan, Jilong Luo, Jiean Chen, Zhaofeng Wang   +4 more
doaj   +1 more source

Optical Manipulation of Whispering Gallery Mode Microlasers for Controlled Cellular Delivery

Advanced Optical Materials, EarlyView.
Optically trapped whispering‑gallery microlasers are precisely positioned onto non‐phagocytic mammalian cells to report local refractive‑index changes in real time. Time‑dependent wavelength shifts reveal successive stages from membrane contact to internalization.
Soraya Caixeiro, Paloma Rodríguez‐Sevilla, Kishan Dholakia, Malte C. Gather   +3 more
wiley   +1 more source

Microcone Array‐Mediated Distance Tuning for Photonic Nanojet‐Amplified SERS

Advanced Optical Materials, EarlyView.
A tunable microcone array platform provides precise vertical gap control between dielectric microspheres and a SERS‐active surface. This structural regulation aligns the photonic nanojet focal point with plasmonic hotspots, delivering a 15‐fold optical signal enhancement.
Chen‐Ting Hung, Yan‐Ru Liu, Ko‐Chi Chen, You‐Chia Chang, Yuh‐Lin Wang, Yih‐Fan Chen   +5 more
wiley   +1 more source