Enzyme Inhibition-Mediated Distance-Based Paper Biosensor for Organophosphate Pesticide Detection in Food Samples

Chemosensors, Journal Year: 2025, Volume and Issue: 13(4), P. 147 - 147

Published: April 16, 2025

Organophosphate pesticides (OPs) enter the environment through various avenues, posing significant health risks. This highlights need to monitor OPs in food and environmental samples. study introduces an enzyme inhibition-mediated distance-based paper (EIDP) biosensor designed for naked-eye visual detection of We synthesized a copper alginate (Cu-Alg) hydrogel that traps water within gel restricts flow on pH paper. When incubated with acetylcholinesterase (AChE) acetylthiocholine (ATCh), activity AChE ATCh generates thiocholine, which interacts Cu2+ ions gel. interaction alters gel’s 3D structure, releasing trapped onto Conversely, when is exposed OPs, its inhibited, limiting from As result, are quantified by measuring reduction distance linear range 18 105 ng/mL, lower limit ng/mL. The EIDP exhibits high selectivity OP successfully analyzes pumpkin rice samples, achieving percent recoveries ranging 93% 103%. method offers straightforward, portable, instrument-free, cost-effective solution detecting

Language: Английский

Development of an ultrasensitive magnetic bead-based non-competitive chemiluminescent immunoassay for 17β-estradiol in milk

Microchimica Acta, Journal Year: 2025, Volume and Issue: 192(5)

Published: April 22, 2025

Language: Английский

Commercial Reagents-based Six-Mode Sensor: One-Step Detection of Iodide Ions without Enzymes or Nanomaterials

Talanta, Journal Year: 2025, Volume and Issue: unknown, P. 128253 - 128253

Published: May 1, 2025

Language: Английский