Results 11 to 20 of about 20,809 (282)

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   +4 more sources

Threshold-Responsive Colorimetric Sensing System for the Continuous Monitoring of Gases

open access: yesSensors, 2023
Colorimetric sensors are widely used because of their inherent advantages including accuracy, rapid response, ease-of-use, and low costs; however, they usually lack reusability, which precludes the continuous use of a single sensor.
Manni Mo   +10 more
doaj   +2 more sources

Gold and Silver Nanoparticle-Based Colorimetric Sensors: New Trends and Applications

open access: yesChemosensors, 2021
Gold and Silver nanoparticles (AuNPs and AgNPs) are perfect platforms for developing sensing colorimetric devices thanks to their high surface to volume ratio and distinctive optical properties, particularly sensitive to changes in the surrounding ...
Giancarla Alberti   +3 more
doaj   +3 more sources

Colorimetric nanofibers as optical sensors [PDF]

open access: yesAdvanced Functional Materials, 2017
Sensors play a major role in many applications today, ranging from biomedicine to safety equipment, where they detect and warn us about changes in the environment. Nanofibers, characterized by high porosity, flexibility, and a large specific surface area,
De Clerck, Karen   +5 more
core   +2 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

A review of utilizing anthocyanins as natural reagents for eco-friendly solid-state colorimetric sensors: A green perspective

open access: yesGreen Analytical Chemistry
Anthocyanins, natural pigment molecules found in plants, show potential as green reagents for solid-state colorimetric analytical sensors, aligning with the urgent need for environmentally friendly analytical techniques.
Niluh Indria Wardani   +2 more
doaj   +3 more sources

Colorimetric Sensor Based on Hydroxypropyl Cellulose for Wide Temperature Sensing Range

open access: yesSensors, 2022
Recently, temperature monitoring with practical colorimetric sensors has been highlighted because they can directly visualize the temperature of surfaces without any power sources or electrical transducing systems.
Hoon Yi   +4 more
doaj   +1 more source

Aptamer Sensors for the Detection of Antibiotic Residues— A Mini-Review

open access: yesToxics, 2023
Food security is a global issue, since it is closely related to human health. Antibiotics play a significant role in animal husbandry owing to their desirable broad-spectrum antibacterial activity.
Gang Liang   +7 more
doaj   +1 more source

Colorimetric Transition of Polydiacetylene/Cyclodextrin Supramolecular Assemblies and Implications as Colorimetric Sensors for Food Phenolic Antioxidants [PDF]

open access: yes, 2023
Molecular self‐assembly has significant potential in the field of sensing. Polydiacetylenes (PDAs) are conjugated polymers possessing peculiar optical properties obtained by photopolymerization of self‐assembled diacetylene monomers.
Francolini, Iolanda   +13 more
core   +1 more source

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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