Controlling inter-sheet-distance in reduced graphene oxide electrodes for highly sensitive electrochemical impedimetric sensing of myoglobin

[Display omitted] •Impedimetric sensitivity was improved by enlarging electroactive surface area.•Electroactive surface area was tuned by varying inter-sheet distance between rGOs.•Detection limit of electrochemical myoglobin-sensors was 2.37 pM.•High selectivity for myoglobin detection over other h...

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