2results about How to "Strong fluorescence response" patented technology

This application discloses an embedded whole-cell biosensor, its fabrication method, and its application in machine learning-assisted mercury ion detection, belonging to the field of sensor materials and detection technology. This sensor encapsulates *E. coli* expressing green fluorescent protein (GFP) in a polyacrylamide / hyaluronic acid (PAAM / HA) hydrogel matrix, enabling highly selective and sensitive detection of mercury ions. It effectively eliminates interference from competing metal ions and can be completely regenerated through EDTA-2Na treatment, allowing for repeated use without performance loss. It maintains a stable fluorescence response for up to three weeks, possesses excellent biocompatibility and biodegradability, minimizing the risk of secondary contamination, and facilitates rapid on-site analysis.

This invention discloses a nanosheet Tb-MOF fluorescence sensor for detecting Al in phosphogypsum and red mud. 3+ The detection application utilizes Tb(NO3)3·5H2O and H4BTTC as raw materials, with benzoic acid as a modifier, to prepare a Tb-BTTC MOF fluorescent sensor with a nanosheet structure and benzothiadiazole functionalization using a microwave-assisted synthesis method. This material can be used as a fluorescent sensor to detect Al in phosphogypsum and red mud. 3+ This invention utilizes highly selective, "on"-type fluorescence enhancement detection, accompanied by a significant blue shift (approximately 10 nm), with a fluorescence spectroscopy detection limit of 0.065 μM. It constructs an intelligent sensing platform integrating a smartphone and a portable UV lamp, achieving Al2O3 detection through fluorescence color and RGB analysis. 3+ The rapid on-site quantitative detection method can be applied to the rapid and visual detection of aluminum ions in solid wastes such as red mud and phosphogypsum, providing new materials and methods for the real-time and portable detection of aluminum ions in red mud and phosphogypsum.