An ultrasensitive photo-driven self-powered aptasensor for microcystin-RR assay based on ZnIn₂S₄/Ti₃C₂ MXenes integrated with a matching capacitor for multiple signal amplification

Abstract

A photo-driven self-powered aptasensor based on MXenes and a matching capacitor that induced multiple signal amplification was constructed for the ultrasensitive detection of microcystin-RR.

A self-powered electrochemical aptasensor for the detection of 17β-estradiol based on carbon nanocages/gold nanoparticles and DNA bioconjugate mediated biofuel cells

“…3,4 The EBFC-based self-powered biosensors combine the biosensing equipment and the energy supply apparatus, requiring only a bioanode and a biocathode and possessing the distinguishing features of simple instrumentation, portability, and superior disturbance immunity. 5,6 These self-powered biosensors have been widely applied in immunoassays, 7,8 biomolecular recognition, 5,9 drug release, 10,11 environmental monitoring, 12–15 food safety, 16–19 and neurochemical sensing. 20 In the construction of EBFC devices, porous nanomaterials have mostly been recommended because they can markedly facilitate electron transfer between biocatalysts and the electrode surface due to their excellent conductive ability and the immobilization of more enzymes on the electrode, which are beneficial for improving the output performance of the developed EBFCs.…”