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Abstract This paper introduces voltammetry and the application of electrochemical biosensors, describes how carbon
nanomaterials are incorporated into the construction of biosensors to adjust sensitivity and detection limits, and
also presents enzyme-free and enzyme-containing carbon nanomaterial sensors for the detection of biomolecules
such as dopamine, uric acid, proteins, enzymes and hydrogen peroxide, respectively. The current research status of
carbon nanotube biosensors, graphene/carbon nanotube biosensors and graphene biosensors in related detection are
highlighted. Finally, the future structure of biosensors, the limitations of current materials and how to use new materials
to enhance the sensing ability are proposed.
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Received: 20 May 2020
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2022, Vol. 32 
