Results 21 to 30 of about 17,983 (249)

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, are the ideal material for ultrasensitive, fast‐responding, and user‐friendly sensor design ...
Ella Schoolaert   +2 more
openaire   +1 more source

A colorimetric aptasensor based on two dimensional (2D) nanomaterial and gold nanoparticles for detection of toxic heavy metal ions: A review

open access: yesFood Chemistry Advances, 2023
Food contamination by heavy metals is a growing public health problem that necessitates the development of fast and simple tools for detection in biological and environmental samples.
Girma Selale Geleta
doaj   +1 more source

Investigation into the predictive performance of colorimetric sensor strips using RGB, CMYK, HSV, and CIELAB coupled with various data preprocessing methods: a case study on an analysis of water quality parameters

open access: yesJournal of Analytical Science and Technology, 2021
The potential use of colorimetric sensors has received significant attention due to its feasibility for use in various applications. After reacting with a sample, the image of the colorimetric sensor can be captured and converted into digital data using ...
Nutthatida Phuangsaijai   +2 more
doaj   +1 more source

Recent Advances on the Development of Chemosensors for the Detection of Mercury Toxicity: A Review

open access: yesSeparations, 2021
The harmful impact of mercury on biological systems is of great concern. Regardless of the efforts made by the regulating agencies, a decrease in Hg2+ concentration has not been realized, and hence mercury accumulation in the environment remains of ...
Shiva Prasad Kollur   +7 more
doaj   +1 more source

Review on Anti-Aggregation-Enabled Colorimetric Sensing Applications of Gold and Silver Nanoparticles

open access: yesChemosensors, 2022
Gold- and silver nanoparticles (Au NPs and Ag NPs)-based colorimetric detection of specific analytes has attracted intense research interest and is still in great demand. The majority of Au NPs- and Ag NPs-based sensory reports have revealed that, during
Muthaiah Shellaiah, Kien-Wen Sun
doaj   +1 more source

Visual pH Sensors: From a Chemical Perspective to New Bioengineered Materials

open access: yesMolecules, 2021
Many human activities and cellular functions depend upon precise pH values, and pH monitoring is considered a fundamental task. Colorimetric and fluorescence sensors for pH measurements are chemical and biochemical tools able to sense protons and produce
Luigi Di Costanzo, Barbara Panunzi
doaj   +1 more source

Hierarchical Cluster Analysis of Medical Chemicals Detected by a Bacteriophage-Based Colorimetric Sensor Array

open access: yesNanomaterials, 2020
M13 bacteriophage-based colorimetric sensors, especially multi-array sensors, have been successfully demonstrated to be a powerful platform for detecting extremely small amounts of target molecules.
Chuntae Kim   +11 more
doaj   +1 more source

Two-Dimensional Material-Based Colorimetric Biosensors: A Review

open access: yesBiosensors, 2021
Two-dimensional (2D) materials such as graphene, graphene oxide, transition metal oxide, MXene and others have shown high potential for the design and fabrication of various sensors and biosensors due to their 2D layered structure and unique properties ...
Danzhu Zhu, Bin Liu, Gang Wei
doaj   +1 more source

Improvement Methods for Colorimetric Gas Sensor for Use in Indoor Livestock Farming

open access: yesProceedings, 2019
Different published colorimetric sensors were investigated with the ultimate goal to develop a colorimetric sensor for a closed livestock farm, applicable in a rough environment. The methods were investigated to improve the lack of sensitivity, roughness,
Jan-Kees Boerman   +6 more
doaj   +1 more source

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   +1 more source

Home - About - Disclaimer - Privacy