Highly Specific and Rapid Colorimetric Detection of Tetracycline in Pills and Milk Based on Aptamer-Controlled Aggregation of Silver Nanoparticles

A colorimetric aptasensor based on NH2-MIL-88B for highly selective detection of trace oxytetracycline in water

“…[15][16][17] Especially for colorimetric sensors, the high catalytic activity of nanozymes can amplify the signal which is conducive to improving the sensitivity of the sensors. 18,19 At present, precious metal nanozymes have been extensively studied in OTC detection, such as gold nanoparticles (Au NPs), 20 silver nanoparticles (Ag NPs), 21 and gold nanoclusters (Au NCs). 22 However, their high preparation cost and tendency to aggregate limited further application in OTC detection.…”