A facile approach to create sensitive and selective Cu(ii) sensors on carbon fiber microelectrodes

Abstract

Increased electrodeposition of ethynyl linkers on carbon fiber microelectrodes produced sensors that yielded increased reduction signal for Cu(ii)).

Fabrication and Optimization of a Molecularly Imprinted Carbon Fiber Microelectrode for Selective Detection of Met-enkephalin Using Fast-Scan Cyclic Voltammetry

“…Applying a high positive potential (1.3+ V) strips the topmost layer of CFMs, thereby allowing for renewal of the electrode surface between recordings, prevents biofouling, and permits continuous monitoring . FSCV recordings at CFMs are stable over numerous consecutive measurements, even with coatings attached to the surface, as shown by us and others. ,, Additionally, the highly adsorptive nature of carbon allows for preconcentration of analytes, making this method highly sensitive (with nM limit of detection) . The only limitation of this method is its specificity.…”

“…43 FSCV recordings at CFMs are stable over numerous consecutive measurements, even with coatings attached to the surface, as shown by us and others. 38,44,45 Additionally, the highly adsorptive nature of carbon allows for preconcentration of analytes, making this method highly sensitive (with nM limit of detection). 46 The only limitation of this method is its specificity.…”