Results 21 to 30 of about 231,641 (313)

A cellulose-based bioassay for the colorimetric detection of pathogen DNA [PDF]

, 2014
Cellulose-paper-based colorimetric bioassays may be used at the point of sampling without sophisticated equipment. This study reports the development of a colorimetric bioassay based on cellulose that can detect pathogen DNA.
Goyal, Madhu, Kukol, A., Rossiter, Sharon, Saikrishnan, Deepika   +3 more
core   +1 more source

Nanomolecular detection of human influenza virus type A using reverse transcription loop-mediated isothermal amplification assisted with rod-shaped gold nanoparticles [PDF]

, 2014
Reverse transcription loop-mediated isothermal amplification (RT-LAMP) and rod-shaped gold nanoparticles (gold nanorods; GNRs) were employed for nanomolecular detection of human influenza virus type A RNA.
Gill, P., Niazi, A., Nikbakht, H., Tabarraei, A.   +3 more
core   +1 more source

On-site colorimetric detection of Salmonella typhimurium

npj Science of Food, 2022
Abstract Rapid qualitative and quantitative detection of Salmonella typhimurium ( S. typhimurium ) takes an important role in ensuring food safety. Herein, a colorimetric assay aptasensor for S. typhimurium
Shengnan Wei, Zhenyue Su, Xiangong Bu, Xuening Shi, Bo Pang, Liang Zhang, Juan Li, Chao Zhao   +7 more
openaire   +3 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

Paper-Based Analytical Device for Zinc Ion Quantification in Water Samples with Power-Free Analyte Concentration

Micromachines, 2017
Insufficient sensitivity is a general issue of colorimetric paper-based analytical devices (PADs) for trace analyte detection, such as metal ions, in environmental water.
Hiroko Kudo, Kentaro Yamada, Daiki Watanabe, Koji Suzuki, Daniel Citterio   +4 more
doaj   +1 more source

2-LED-µSpectrophotometer for Rapid On-Site Detection of Pathogens Using Noble-Metal Nanoparticle-Based Colorimetric Assays

Applied Sciences, 2020
Novel point-of-care compatible methods such as colorimetric assays have become increasingly important in the field of early pathogen detection.
Cornelia Reuter, Matthias Urban, Manuel Arnold, Ondrej Stranik, Andrea Csáki, Wolfgang Fritzsche   +5 more
doaj   +1 more source

A Colorimetric/Fluorescent Dual-Mode Aptasensor for Salmonella Based on the Magnetic Separation of Aptamers and a DNA-Nanotriangle Programmed Multivalent Aptamer

Foods, 2023
Salmonella infection has emerged as a global health threat, causing death, disability, and socioeconomic disruption worldwide. The rapid and sensitive detection of Salmonella is of great significance in guaranteeing food safety.
Na Ma, Mengni Sun, Hanxing Shi, Liangliang Xue, Min Zhang, Wenge Yang, Yali Dang, Zhaohui Qiao   +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 ...
Acharya, Andrew, Anfalt, Barron, Beach, Benson, Berry, Betteridge, Betteridge, Betteridge, Betteridge, Blundell, Boring, Bowden, Cantrell, Cardoso, Carroll, Chapin, Chediak, Chen, Clinch, Collins, Collins, Collins, Dasgupta, Dasgupta, Dasgupta, Dasgupta, David, Daykin, Deng, Dermot Diamond, Diamond, Diamond, Dong, Dybko, Eiichi, Ellis, Eom, Feres, Ferrer, Firstenberg-Eden, Flaschka, Fonseca, Fonseca, Freeman, Galanis, Gardolinski, Gotz, Greenway, Gros, Gros, Gros, Hauser, Hauser, Hauser, Hauser, Higgins, Ho, Holonyak, Hooley, Huang, Ichikawa, Jambunathan, Johns, Johnson, Kawamura, King, Koch, Kovac, Kuban, Kuo, Lau, Lau, Lau, Lau, Lau, Lee, Li, Liu, Liu, Liu, Liu, Lu, Lu, Lyddy-Meaney, Marle, Martina O’Toole, Matias, Mims, Mims, Mitrani, O'Toole, O'Toole, O'Toole, Pacquit, Pacquit, Park, Petsul, Rainelli, Ramırez-Garcıa, Ramirez-Garcia, Riley, Rocha, Samanta, Santos, Schawarz, Schmidt, Schmidt, Schnable, Schrodle, Sequeira, Sequeira, Singh, Smardzewski, Smiddy, Sombatsompop, Sonne, Suzuki, Suzuki, Taib, Tan, Taniyasu, Teshima, Toda, Trojanowicz, Trojanowicz, Trojanowicz, Tubino, Tubino, Vachirapatama, White, Worsfold, Yamada, Yang, Zagatto, Zhang, Zude, Zukauskas   +138 more
core   +3 more sources

Colorimetric Immunoassay for Detection of Tumor Markers [PDF]

International Journal of Molecular Sciences, 2010
Tumor markers are substances, usually proteins, produced by the body in response to cancer growth, or by the cancer tissue itself. They can be detected in blood, urine, or tissue samples, and the discovery and detection of tumor markers may provide earlier diagnosis of cancer and improved therapeutic intervention.
Yin, Yongmei, Cao, Ya, Xu, Yuanyuan, Li, Genxi   +3 more
openaire   +2 more sources

Rapid Trace Detection of Sulfite Residue in White Wine Using a Multichannel Colorimetric Nanozyme Sensor

Foods, 2023
As a commonly used food additive, sulfite (SO32−) is popular with food manufacturers due to the functions of bleaching, sterilizing, and oxidation resistance. However, excess sulfites can pose a threat to human health.
Xiaoyue Yue, Long Fu, Chaoyun Wu, Sheng Xu, Yanhong Bai   +4 more
doaj   +1 more source