Results 21 to 30 of about 20,809 (282)

Development of Static and Dynamic Colorimetric Analysis Techniques Using Image Sensors and Novel Image Processing Software for Chemical, Biological and Medical Applications

Technologies, 2023
Colorimetric sensing techniques for point(s), linear and areal array(s) were developed using image sensors and novel image processing software for chemical, biological and medical applications.
Woo Sik Yoo, Jung Gon Kim, Kitaek Kang, Yeongsik Yoo   +3 more
doaj   +1 more source

Machine vision-based colorimetric sensor systems for food applications

Journal of Agriculture and Food Research, 2023
Food safety and quality are of importance in daily life. Colorimetric sensors can be used to rapidly and sensitively detect food safety and quality parameters.
Xiaoxue Jia, Peihua Ma, Kevin Tarwa, Qin Wang   +3 more
doaj   +1 more source

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

Food 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

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 ...
O'Toole, Martina, Wallace, Gordon, O\u27Toole, Martina, Gordon G. Wallace, Dermot Diamond, Shepherd, Roderick, Roderick Shepherd, Martina O’Toole, Diamond, Dermot   +8 more
core   +1 more source

The optimisation of a paired emitter-detector diode optical pH sensing device [PDF]

, 2010
With recent improvements in wireless sensor network hardware there has been a concurrent push to develop sensors that are suitable in terms of price and performance.
Corcoran, Brian, Dermot Diamond, Beirne, Stephen, Lau, King-Tong, Dylan Orpen, Stephen Beirne, King Tong Lau, Orpen, Dylan, Diamond, Dermot, Fay, Cormac, Cormac Fay, Brian Corcoran   +11 more
core   +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

Journal 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, Jaroon Jakmunee, Sila Kittiwachana   +2 more
doaj   +1 more source

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

Separations, 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, Chandan Shivamallu, Shashanka K. Prasad, Ravindra Veerapur, Sharanagouda S. Patil, Charley A. Cull, Johann F. Coetzee, Raghavendra G. Amachawadi   +7 more
doaj   +1 more source

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
O'Toole, Martina, Dermot Diamond, O\u27Toole, Martina, Martina O’Toole, Diamond, Dermot, Martina O’Toole   +5 more
core   +1 more source

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

Chemosensors, 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

Textile-based wearable sensors for assisting sports performance [PDF]

, 2009
There is a need for wearable sensors to assess physiological signals and body kinematics during exercise. Such sensors need to be straightforward to use, and ideally the complete system integrated fully within a garment.
Dermot Diamond, Deirdre Morris, Coyle, Shirley, Morris, Deirdre, Lau, King-Tong, King-Tong Lau, Shirley Coyle, Niall Moyna, Moyna, Niall, Diamond, Dermot, Lau Dermot Diamond   +10 more
core   +1 more source