Results 81 to 90 of about 1,138,593 (301)

In situ quantification of volatile ethanol in complex components based on colorimetric sensor array

open access: yes, 2017
A colorimetric sensor array composed of synthesized metalloporphyrins selected through quantum-chemical calculation was applied to volatile ethanol quantification.
Zhong-xiu Man   +5 more
core   +1 more source

Nanoamphizymes: Self‐Assembled Amphiphilic Enzymatic Nanomaterials for High‐Performance Biocatalysis and Biosensing

open access: yesAdvanced Functional Materials, EarlyView.
An amphiphilic GOx nanoamphizyme was constructed by covalently introducing hydrophobic PPNI linkers onto GOx, enabling spontaneous self‐assembly into tunable nanoparticles. Mild crosslinking further stabilized the assemblies and enhanced catalytic performance and stability.
Yuan‐Hao Hsiao   +4 more
wiley   +1 more source

Fabrication of a Colorimetric Electrochemiluminescence Sensor

open access: yes, 2016
A colorimetric electrochemiluminescence (ECL) sensor was fabricated for the first time, based on a dual-color system including a strong red Ru(bpy)32+ ECL and a green reference light from a light emitting diode.
Munetaka Oyama (1618336)   +6 more
core   +1 more source

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

open access: yesAdvanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee   +11 more
wiley   +1 more source

An artificial intelligence-assisted microfluidic colorimetric wearable sensor system for monitoring of key tear biomarkers

open access: yesnpj Flexible Electronics
The precise, simultaneous, and rapid detection of essential biomarkers in human tears is imperative for monitoring both ocular and systemic health. The utilization of a wearable colorimetric biochemical sensor exhibits potential in achieving swift and ...
Zihu Wang   +7 more
doaj   +1 more source

Rational Control of Antibody Orientation for Enhancing Sensitivity and Specificity in Lateral Flow Immunoassays With Clinical Validation

open access: yesAdvanced Healthcare Materials, EarlyView.
Systematic investigation of antibody orientation strategies in lateral flow immunoassays reveals that a para‐substituted (aminomethyl)phenylboronic acid mediated probe (P‐6) combined with a biotin‐streptavidin test‐line modification achieves a synergistic 14‐ to 19‐fold sensitivity gain over conventional conjugation. Furthermore, multiplexed detection,
Pin‐Hao Wang   +5 more
wiley   +1 more source

Wearable Image‐Based Colorimetric Sensor for Real‐Time Gas Detection with High Chromaticity

open access: yesAdvanced Electronic Materials
Flexible gas sensing technologies are essential for a wide range of environments and applications, from wearable devices to large‐scale industrial systems.
Ji‐Eun Yeo   +3 more
doaj   +1 more source

Hand-Held Reader for Colorimetric Sensor Arrays

open access: yes, 2015
An inexpensive hand-held device for analysis of colorimetric sensor arrays (CSAs) has been developed. The device makes use of a contact image sensor (CIS), technology commonly used in business card scanners, to rapidly collect low-noise colorimetric data
Jon R. Askim (1557310)   +1 more
core   +1 more source

A thiazolothiazole based Cu2+ selective colorimetric and fluorescent sensor via unique radical formation

open access: yes, 2020
A novel thiazolothiazole-based Cu2+ colorimetric and fluorescent sensor is reported. A highly selective colorimetric change from yellow to dark green was observed among various metal ions after adding Cu2+.
김영미   +4 more
core   +1 more source

Atom‐Efficient Cerium‐Based Molecular Cages as Biocompatible Reactive Oxygen Scavengers

open access: yesAdvanced Healthcare Materials, EarlyView.
Discrete mixed‐valent cerium molecular cages organize accessible redox centers within confined coordination environments and scavenge superoxide, hydrogen peroxide, and hydroxyl radicals. Encapsulation of the lead cage in an ROS‐responsive DTP nanoplatform enables lesion‐associated delivery, attenuates macrophage oxidative stress and inflammation, and ...
Chao Li   +9 more
wiley   +1 more source

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