Results 21 to 30 of about 61,204 (302)

Silver Nanoparticle Sensor Array-Based Meat Freshness Inspection System

Foods, 2023
The series of biochemical reactions, metabolic pathways, and regulatory interactions that occur during the storage of meat are the main causes of meat loss and waste.
Jiahang Yu, Mingyuan Huang, Huixin Tian, Xinglian Xu   +3 more
doaj   +1 more source

Colorimetric Sensing of Lactate in Human Sweat Using Polyaniline Nanoparticles-Based Sensor Platform and Colorimeter

Biosensors, 2022
In emergency medicine, the lactate level is commonly used as an indicator of the severity and response to the treatment of hypoperfusion-related diseases. Clinical lactate measurements generally require 3 h for clinical determination.
Hyun Jung Kim, Insu Park, Seung Pil Pack, Gyudo Lee, Yoochan Hong   +4 more
doaj   +1 more source

Inkjet printed LED based pH chemical sensor for gas sensing [PDF]

, 2009
Predictable behaviour is a critical factor when developing a sensor for potential deployment within a wireless sensor network (WSN). The work presented here details the fabrication and performance of an optical chemical sensor for gaseous acetic acid ...
Abe, Allain, Bae, Beirne, Bharathan, Byrne, Carter, Crowley, Crowley, Crowley, Dermot Diamond, Diamond, Diamond, Gordon G. Wallace, Grady, Hasenbank, Haverinen, Hayes, Hebner, Janata, Janzen, Kim, Lau, Leopold, Li, Mabrook, Magdassi, Martina O’Toole, Nivens, Nivens, O’Toole, O’Toole, Pacquit, Pacquit, Rakow, Rakow, Reis, Roderick Shepherd, Rogers, Shepherd, Shepherd, Shepherd, Spadavecchia, Stewart, Weigl   +44 more
core   +1 more source

A Colorimetric pH Sensor Based on Clitoria sp and Brassica sp for Monitoring of Food Spoilage Using Chromametry

Sensors, 2019
A developed colorimetric pH sensor film based on edible materials for real-time monitoring of food freshness is described. The mixed natural dyes from edible plants Clitoria sp and Brassica sp were extracted and incorporated into ι-carrageenan film ...
Noor Azizah Ahmad, Lee Yook Heng, Faridah Salam, Mohd Hazani Mat Zaid, Sharina Abu Hanifah   +4 more
doaj   +1 more source

Dye modification of nanofibrous silicon oxide membranes for colorimetric HCl and NH3 sensing [PDF]

, 2016
Colorimetric sensors for monitoring and visual reporting of acidic environments both in water and air are highly valuable in various fields, such as safety and technical textiles.
Breyne, Bet, Cousins, Gabriella, De Buysser, Klaartje, De Clerck, Karen, Geltmeyer, Jozefien, Hoogenboom, Richard, Lava, Kathleen, Steyaert, Iline, Vancoillie, Gertjan   +8 more
core   +1 more source

Improving Color Accuracy of Colorimetric Sensors [PDF]

Sensors, 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, Koeckhoven, Pim, Sivakumar, Keshav   +2 more
openaire   +2 more sources

Colorimetric Paper-Based Sensors against Cancer Biomarkers

Sensors, 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. Clinicians, particularly in developing countries, deal with high costs and limited resources for diagnostic systems.
Carneiro, Mariana, Rodrigues, R. V., Moreira, Felismina, Ferreira Sales, Maria Goreti   +3 more
openaire   +6 more sources

A uracil nitroso amine based colorimetric sensor for the detection of Cu²⁺ ions from aqueous environment and its practical applications [PDF]

, 2015
A simple uracil nitroso amine based colorimetric chemosensor (UNA-1) has been synthesized and screened for its cation recognition ability. Sensor UNA-1 exhibited a high sensitivity and selectivity towards Cu²⁺ ions in aqueous medium in the presence of a ...
Chen, Lingxin, Devi, Manisha, Fabiao, Yu, Nandre, Jitendra P., Patil, Prashant A., Patil, Samadhan R., Patil, Umesh D., Pradeep, Chullikkattil P., Redshaw, Carl, Sahoo, Suban K., Yu Fabiao   +10 more
core   +2 more sources

Wireless aquatic navigator for detection and analysis (WANDA) [PDF]

, 2010
The cost of monitoring and detecting pollutants in natural waters is of major concern. Current and forthcoming bodies of legislation will continue to drive demand for spatial and selective monitoring of our environment, as the focus increasingly moves ...
Al-Bahry, Austin, Bailey, Bardyn, Brian Corcoran, Byrne, Byrne, Ciarán Ó Conaire, Cleary, Cormac Fay, Dermot Diamond, Diamond, Diamond, Durrant-Whyte, EPA, Fortner, Geoff Spinks, Gonzalez, Gordon Wallace, Greg Coleman, Gursel Alici, Hayden, Hayes, Hayes, Hoyer, Kevin McGuinness, King-Tong Lau, Lau, McGovern, McGraw, Noel E. O’Connor, Palacio, Rod Shepherd, Safavi, Scott McGovern, Smela, Smith, Stephen Beirne, Stich, Sun Microsystems, SUN Microsystems, Wainwright, Zhang   +42 more
core   +2 more sources

Optical beam guidance in monolithic polymer chips for miniaturized colorimetric assays [PDF]

, 2005
For the first time, we present a simple and robust optical concept to enable precise and sensitive read-out of colorimetric assays in flat lab-on-a-chip devices.
Ducrée, Jens, Geipel, A., Grumann, M., Kohn, C., Moser, I., Riegger, L., Steigert, J., Urban, G., Zengerle, Roland   +8 more
core   +1 more source