Enzyme‐Encapsulating Quantum Dot Hydrogels and Xerogels as Biosensors: Multifunctional Platforms for Both Biocatalysis and Fluorescent Probing

Trapped: Enzymes (blue in picture) were encapsulated into CdTe quantum dot (QD) hydrogels during the self-assembly of CdTe QDs (orange) in phosphate buffer solution. The as-prepared enzyme-encapsulating QD hydrogel incorporating both a biocatalysis unit and a fluorescence signaling unit was further explored as a multifunctional platform in the development of optical biosensors.