Results 11 to 20 of about 909,337 (236)

Photonic Crystal Structures with Tunable Structure Color as Colorimetric Sensors

open access: yesSensors, 2013
Colorimetric sensing, which transduces environmental changes into visible color changes, provides a simple yet powerful detection mechanism that is well-suited to the development of low-cost and low-power sensors.
Ke-Qin Zhang, Hui Wang
doaj   +2 more sources

Colorimetric Paper-Based Sensors against Cancer Biomarkers [PDF]

open access: yesSensors, 2022
Cancer is a major cause of mortality and morbidity worldwide. Detection and quantification of cancer biomarkers plays a critical role in cancer early diagnosis, screening, and treatment.
Mariana C. C. G. Carneiro   +3 more
doaj   +2 more sources

Colorimetric Molecularly Imprinted Polymer-Based Sensors for Rapid Detection of Organic Compounds: A Review

open access: yesChemosensors
This review offers a comprehensive examination of the development and current state of the art in the field of molecularly imprinted polymer (MIP)-based colorimetric sensors, focusing on their potential for the rapid detection of organic compounds. These
Juan Carlos Bravo-Yagüe   +4 more
doaj   +2 more sources

Improving Color Accuracy of Colorimetric Sensors [PDF]

open access: yesSensors, 2018
Accurate measurements of reflectance and color require spectrophotometers with prices often exceeding $3000. Recently, new “color instruments” became available with much lower prices, thanks to the availability of inexpensive colorimetric sensors. We investigated the Node+ChromaPro and the Color Muse, launched in 2015 and 2016 by Variable Inc.
Kirchner, Eric   +2 more
openaire   +4 more sources

Integrating Deoxyribozymes into Colorimetric Sensing Platforms

open access: yesSensors, 2016
Biosensors are analytical devices that have found a variety of applications in medical diagnostics, food quality control, environmental monitoring and biodefense.
Dingran Chang   +5 more
doaj   +2 more sources

Nanomaterial-based sensors for microbe detection: a review

open access: yesDiscover Nano
Airborne microorganisms pose a significant health threat, causing various illnesses. Traditional detection methods are often slow and complex. This review highlights the potential of nanomaterial-based biosensors, particularly colorimetric sensors, for ...
Muhammad Qamar Khan   +5 more
doaj   +2 more sources

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

open access: yesSensors, 2018
Due to their unique optical properties, narrow size distributions, and good biological affinity, gold nanoparticles have been widely applied in sensing analysis, catalytic, environmental monitoring, and disease therapy.
Guangyang Liu   +4 more
doaj   +2 more sources

Surface functionalization strategies for polydiacetylene-based colorimetric sensors

open access: yesCommunications Chemistry
Polydiacetylene (PDA)-based colorimetric sensors offer a promising platform for rapid and visual detection, through a chromatic transition from blue to red.
Brainy Happy Ana Tasiman   +8 more
doaj   +2 more sources

Advances in fluorescent and colorimetric sensors for anionic species [PDF]

open access: yes, 2021
In this review we cover recent developments in fluorescent and colorimetric anion sensors. These systems employ a range of different non-covalent interactions including hydrogen- and halogen-bonding, Lewis acidic boron-based sensors, metal-based sensors,
Fares, Mohamed   +14 more
core   +3 more sources

Colorimetric Visual Sensors for Point-of-needs Testing

open access: yesSensors and Actuators Reports, 2022
The concept of color in chemistry can take us back to when the separation of color-based natural products, dyes, and other chemical compounds led to the technique called chromatography.
Sadagopan Krishnan, Zia ul Quasim Syed
doaj   +1 more source

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