title: Rapid and sensitive colorimetric detection of pathogens based on silver-urease interactions. creator: Singh, Pargat creator: Kakkar, Saloni creator: Bharti, . creator: Kumar, Rajesh creator: Bhalla, Vijayender subject: QR Microbiology description: Herein, we demonstrate a facile and economic approach for colorimetric detection of microbial pathogens in drinking water, employing silver-urease interactions. In the presence of harmful pathogens, receptor coated silver nanoparticles (AgNPs) preferentially bind to the bacterial surface and urease catalytically elevates the pH of the solution, which is sensed by a pH responsive chromogenic dye. The assay demarcates bacterial contamination levels up to 102 cells mL-1 in a field-friendly method. publisher: Royal Society of Chemistry date: 2019-04-18 type: Article type: PeerReviewed relation: https://pubs.rsc.org/en/content/articlelanding/2019/CC/C9CC00225A#!divAbstract identifier: Singh, Pargat and Kakkar, Saloni and Bharti, . and Kumar, Rajesh and Bhalla, Vijayender (2019) Rapid and sensitive colorimetric detection of pathogens based on silver-urease interactions. Chemical communications (Cambridge, England), 55 (33). pp. 4765-4768. ISSN 1364-548X relation: http://crdd.osdd.net/open/2418/