Recyclable and Robust Optical Nanoprobes with Engineered Enzymes for Sustainable Serodiagnostics.

Liu, Yuxin; Wei, Zheng; Damian, Matteo; Zhu, Xingjun; Knaus, Tanja; Zhang, Hong; Mutti, Francesco G; Loeffler, Felix F · Adv Mater · 2023

basic_science · Level V

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Abstract

Recyclable fluorescence assays that can be stored at room temperature would greatly benefit biomedical diagnostics by bringing sustainability and cost-efficiency, especially for point-of-care serodiagnostics in developing regions. Here, a general strategy is proposed to generate recyclable fluorescent probes by using engineered enzymes with enhanced thermo-/chemo-stability, which maintains an outstanding serodiagnostic performance (accuracy >95%) after 10 times of recycling as well as after storage at elevated temperatures (37 °C for 10 days). With these three outstanding properties, recyclable fluorescent probes can be designed to detect various biomarkers of clinical importance by using different enzymes.

Medical subject headings