Abstract:
A ultrasensitive NiFeP based electrochemical sensor was developed
for the selective electrochemical detection of dopamine to address
the issue associated with neurological disorders including Parkinson’s
and Alzheimer’s diseases. The novel sensor shows superior
selectivity and sensitivity with a lowest detection limit of 0.3 nM and
a wide detection range of 10 nM–500 lM and is immune to the
interference of ascorbic acid at physiological pH (7.4). A novel flexible
sensor was developed with NiFeP coated over Whatman filter paper,
which exhibits two liner ranges of 10 nM 1 lMand 10 lM–500 lMwith
an ultra high sensitivity of 756 lA lM 1 cm 2 and 4.6 lA lM 1 cm 2
respectively with a wide detection range of 10 nM to 500 lM.
