Results 11 to 20 of about 61,204 (302)

ColoriSens: An open-source and low-cost portable color sensor board for microfluidic integration with wireless communication and fluorescence detection

open access: yesHardwareX, 2022
Microfluidic colorimetric biosensors have shown promising potential for detecting metal cations, anions, organic dyes, drugs, pesticides. As for today, most colorimetric sensors are read by a smartphone or professional optical imaging system, and there ...
Yushen Zhang   +2 more
doaj   +1 more source

Preparation of Mesoporous Silica Nanosphere-Doped Color-Sensitive Materials and Application in Monitoring the TVB-N of Oysters

open access: yesFoods, 2022
In this work, a new colorimetric sensor based on mesoporous silica nanosphere-modified color-sensitive materials was established for application in monitoring the total volatile basic nitrogen (TVB-N) of oysters.
Binbin Guan   +4 more
doaj   +1 more source

The use of colorimetric sensor arrays to discriminate between pathogenic bacteria. [PDF]

open access: yesPLoS ONE, 2013
A colorimetric sensor array is a high-dimensional chemical sensor that is cheap, compact, disposable, robust, and easy to operate, making it a good candidate technology to detect pathogenic bacteria, especially potential bioterrorism agents like Yersinia
Claire L Lonsdale   +6 more
doaj   +1 more source

Fabrication of Carbon Disulfide Added Colloidal Gold Colorimetric Sensor for the Rapid and On-Site Detection of Biogenic Amines

open access: yesSensors, 2021
Meat is often wasted due to the perceived concerns of its shelf life and preservation. Specifically, in meat formation, biogenic amines (BAs) are the major agents to spoil them.
Namhyeok Choi   +6 more
doaj   +1 more source

Colorimetric Sensors: Methods and Applications

open access: yesSensors, 2023
Colorimetric sensors have attracted considerable attention in many sensing applications because of their specificity, high sensitivity, cost-effectiveness, ease of use, rapid analysis, simplicity of operation, and clear visibility to the naked eye [...]
Feng-Qing Yang, Liya Ge
openaire   +3 more sources

Chameleon-Inspired Colorimetric Sensors for Real-Time Detections with Humidity

open access: yesMicromachines, 2023
In recent decades, vapor sensors have gained substantial attention for their crucial roles in environmental monitoring and pharmaceutical applications. Herein, we introduce a chameleon-inspired colorimetric (CIC) sensor, detailing its design, fabrication,
Yu-Hsuan Cheng   +2 more
doaj   +1 more source

Plasmonic Sensing of Glucose Based on Gold–Silver Core–Shell Nanoparticles

open access: yesChemosensors, 2022
Developing a simple and convenient approach for glucose sensing is crucially important in disease diagnosis and health monitoring. In this work, a glucose sensor based on plasmonic nanostructures was developed using gold–silver core–shell nanoparticles ...
Junjie Wang   +6 more
doaj   +1 more source

Design of highly perceptible dual-resonance all-dielectric metasurface colorimetric sensor via deep neural networks

open access: yesScientific Reports, 2022
Colorimetric sensing, which provides effective detection of bio-molecular signals with one’s naked eye, is an exceptionally promising sensing technique in that it enables convenient detection and simplification of entire sensing system.
Hyunwoo Son   +4 more
doaj   +1 more source

Lab‐in‐a‐Bead: Magnetic Janus Bead Probe for the Detection of Biomarkers in Blood

open access: yesAdvanced Materials Interfaces, 2023
Remotely handled miniaturized colorimetric sensor platforms with multiple functionalities are able to mimic conventional laboratory operations with reduced assets.
Udara Bimendra Gunatilake   +5 more
doaj   +1 more source

Revisiting Colorimetric Gas Sensors: Compact, Versatile and Cost-Effective

open access: yesProceedings, 2020
We report on an inexpensive and very selective gas sensor implemented by simply combining colorimetric indicators casted on top of acetate-based transparent tape, with a commercial microchip adapted here to measure optical reflectance. This sensor can be
Christian Driau   +4 more
doaj   +1 more source

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