Results 81 to 90 of about 2,750,300 (344)

The Application of Back-Compatible Color QR Codes to Colorimetric Sensors

Proceedings
We present the application of QR Codes as carriers for colorimetric dyes, whereby this refined version of machine-readable patterns applied to colorimetric sensing also allows us to maintain the data from the QR Code standard in a back-compatible way ...
Ismael Benito-Altamirano, Ferran Crugeira, Míriam Marchena, J. Daniel Prades   +3 more
doaj   +1 more source

Recent developments in the colorimetric sensing of biological molecules using gold nanoparticles-based probes

Talanta Open, 2022
The localized surface plasmon resonance (LSPR) phenomenon of the noble metal nanoparticles is responsible for their strongly coloured colloidal solutions.
Devendra P.S. Negi
doaj   +1 more source

Citrate and Polyvinylpyrrolidone Stabilized Silver Nanoparticles as Selective Colorimetric Sensor for Aluminum (III) Ions in Real Water Samples [PDF]

, 2020
The use of silver nanoparticles stabilized with citrate and polyvinylpyrrolidone as a sensor for aluminum ions determination is proposed in this paper. These non-functionalized and specific nanoparticles provide a highly selective and sensitive detection
López Pérez, Germán, Martín Valero, María Jesús, Prado Gotor, Rafael, Román Hidalgo, Cristina, Ruiz del Portal Vázquez, Paula   +4 more
core   +1 more source

Anticancer sensitivities and biological characteristics of HCT116 cells resistant to the selective poly(ADP‐ribose) glycohydrolase inhibitor

FEBS Open Bio, EarlyView.
We analyzed alterations of PAR metabolism‐related proteins in PARG inhibitor‐resistant HCT116RPDD cells. Although PARG levels remained unchanged, HCT116RPDD cells exhibited reduced PARP1 and ARH3 expression and elevated PAR levels. Interestingly, HCT116RPDD cells exhibited slightly elevated intracellular NAD+/NADH and ATP levels. Our findings suggest a
Kaede Tsuda, Yoko Ogino, Akira Sato
wiley   +1 more source

Nanostructure-Engineered Optical and Electrochemical Biosensing Toward Food Safety Assurance

Foods
Considering the necessity of food safety testing, various biosensors have been developed based on biological elements (e.g., antibodies, aptamers), chemical elements (e.g., molecularly imprinted polymers), physical elements (e.g., nanopores) as ...
Xinxin Wu, Zhecong Yuan, Shujie Gao, Xinai Zhang, Hany S. El-Mesery, Wenjie Lu, Xiaoli Dai, Rongjin Xu   +7 more
doaj   +1 more source

Distributed environmental monitoring [PDF]

, 2013
With increasingly ubiquitous use of web-based technologies in society today, autonomous sensor networks represent the future in large-scale information acquisition for applications ranging from environmental monitoring to in vivo sensing.
Cleary, John, Collins, Fiachra, Diamond, Dermot, Fay, Cormac, Zuliani, Claudio   +4 more
core  

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

FEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source

Fluorescent nanoparticles for sensing

, 2020
Nanoparticle-based fluorescent sensors have emerged as a competitive alternative to small molecule sensors, due to their excellent fluorescence-based sensing capabilities.
Acosta, Alarcón-Angeles, Albertazzi, Aldewachi, Ali, Ali, Alivisatos, Amelia, Amin, Arai, Arcudi, Bae, Bagwe, Behnke, Berti, Bhattacharyya, Biteen, Bruchez, Byrappa, Cai, Cao, Carregal-Romero, Chai, Chandra, Chen, Chen, Chen, Chen, Chen, Chen, Choi, Chu, Colom, De Luca, del Mercato, del Mercato, Derr, Dhenadhayalan, Diaz-Diestra, Ding, Dmitriev, Dong, Duong, Duong, Enkin, Fehérvári, Fernández-Argüelles, Fong, Fu, Furukawa, Gao, Govindaraju, Guo, Ha, Halter, Herschel, Hines, Hornig, Hou, Hu, Huang, Huang, Huang, Iyer, Jelinek, Jeong, Jiang, Jimenez de Aberasturi, Jin, Kim, Kircher, Kong, Lakowicz, Lan, Lee, Lemon, Leobandung, Leonhardt, Lepore, Li, Li, Li, Li, Li, Li, Li, Li, Li, Li, Lim, Lin, Lin, Liu, Liu, Liu, Liu, Liu, López-Duarte, Ma, Ma, Medintz, Melnychuk, Miao, Monteiro, Naccarato, Nandi, Ng, Nie, Nooney, Ou, Pan, Pellegrino, Peng, Pompa, Potter, Qian, Qian, Qu, Rakovich, Rao, Reisch, Riccò, Riedinger, Ruedas-Rama, Saha, Samokhvalov, See, Shamirian, Shang, Shang, Shangguan, Shao, Shen, SMITH, Song, Stich, Stryer, Stöber, Su, Sun, Tang, Thiyagarajan, Toh, Ukeda, Valeur, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wei, Wen, Widengren, Wolfbeis, Wu, Wu, Wu, Wu, Wu, Xie, Xie, Xu, Xu, Yang, Yang, Ye, Yin, Yin, Yu, Yu, Yu, Zadran, Zeng, Zhang, Zhang, Zhang, Zhao, Zheng, Zhu, Zor, Zorman   +183 more
core   +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

Colorimetric Bacteria Sensing Using a Supramolecular Enzyme–Nanoparticle Biosensor [PDF]

Journal of the American Chemical Society, 2011
Rapid and sensitive detection of pathogens is a key requirement for both environmental and clinical settings. We report here a colorimetric enzyme-nanoparticle conjugate system for detection of microbial contamination. In this approach, cationic gold nanoparticles (NPs) featuring quaternary amine headgroups are electrostatically bound to an enzyme [β ...
Oscar R, Miranda, Xiaoning, Li, Limary, Garcia-Gonzalez, Zheng-Jiang, Zhu, Bo, Yan, Uwe H F, Bunz, Vincent M, Rotello   +6 more
openaire   +2 more sources