Método para medir la concentración de sustrato y dispositivo para el mismo

摘要

The present invention provides an apparatus for measuring a substrate concentration by accumulating an energy resulting from a reaction between a biocatalyst and a substrate recognized by the biocatalyst to a certain level; and using a dependency of an accumulation rate on the substrate concentration as an index. In particular, the present invention provides an apparatus for measuring the concentration of a substrate, said apparatus comprising: a fuel cell having an anode on which a biocatalyst is disposed and a cathode on which an external electron acceptor is disposed; a capacitor connected to said fuel cell in series; a signal generation circuit which is a wireless transmitter and which generates a signal by said capacitor discharging; a receiver for receiving said signal generated from said signal generation circuit; and a measuring device for measuring the concentration of said substrate on the basis of said signal; wherein said capacitor is charged based on an electromotive force generated by transferring electrons generated by a biocatalytic reaction between said substrate and said biocatalyst into said external electron acceptor on said cathode, and said substrate concentration is measured by using as an index the frequency of said signal.