A label-free photoelectrochemical aptasensing platform base on plasmon Au coupling with MOF-derived In2O3@g-C3N4 nanoarchitectures for tetracycline detection

•A novel photoelectrochemical aptasensor for the detection of Tc was designed.•MIL-68 (In) derived In2O3 nanoparticles were employed as substrate to fabricate PEC aptasensor for the first time.•Au-In2O3@g-C3N4 nanoarchitectures performed outstanding photoelectrochemical activity.•The aptasensor exhi...

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