Fig. 6.

The small molecule diagnostics. A Generalized schematic of the molecular radar strategy for small molecules diagnostics (Figure from Niu et al., Biosensors and Bioelectronics 183 (2021) 113196; Copyright by Elsevier, used with permission). B Proposed CRISPR-Cas12a biosensor for ATP detection; C The schematic of target ssDNA as well as crRNA used; the target site is highlighted in red (Figure from Peng et al., Sensors & Actuators: B. Chemical 320 (2020) 1281642;

Copyright by Elsevier, used with permission)