Electrochemical Redox Cycling Realized by Chromatography Paper-based Sensor
Abstract: In this work, we
demonstrated that enhancement of electrochemical current due to redox cycling could
be accomplished by paper-based biosensor without any expensive
micro-fabrication process. The paper-based sensor had layered structure to
generate higher current than a conventional one. We took advantage of the fact
that the paper thickness was micrometer-sized (180um), and it defined the
distance between two electrochemical electrodes on both sides of the paper.
Experimental results showed signatures of the redox cycling, where the
electrochemical current from low concentration molecules could be arbitrarily
increased by decreasing the distance between electrodes. Such a structure was advantageous
for detecting target molecules at very low concentration, proposing a low-cost
highlysensitive biochemcal sensor.
Auythor: Kenichi Fukayama
Journal Code: jptkomputergg170075
