Rapid and home-testable integrated colorimetric sensor for nitrite detection in urine

GOx@ZIF-90@CuCo-MOF paper-based nanozyme sensor for rapid and noninvasive glucose detection in saliva.

Glucose biosensors are pivotal to diabetes management; however, traditional fingerstick blood collection methods are often challenging due to their invasiveness, pain, high cost, and inability to provide continuous monitoring. Here, we constructed a paper-based colorimetric sensing platform using a multifunctional meta...

Gold (III) paper sensor with machine learning for field arsenic detection

Machine learning-assisted colorimetric serum phosphate detection based on sweet potato-derived carbon dots

Multi-cycle colorimetric and fluorescent bimodal detection of low concentration ammonia by spiropyran-modified cotton fabric.

Real-time detection of ammonia is a critical concern in food safety and industrial production. However, traditional ammonia detection methods exhibit several inherent limitations, including slow response, high costs, and low sensitivity. In this study, a novel spiropyran-modified cotton fabric (LBNH-fabric) based on a...

Dual-readout smartphone-assisted and spectrophotometric colorimetric nanosensor for enzymeless bisphenol A detection

Wearable Colorimetric Sensor for Hydrogen Sulfide Detection