Electrochemical Detection of Penicillium chrysogenum Based on Increasing Conductivity of Polyaminophenylboronic Acidстатья
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Дата последнего поиска статьи во внешних источниках: 18 апреля 2017 г.
Аннотация:Electrochemical detection of the Penicillium chrysogenum mold fungus is carried out in aqueous solution using decreasing resistance of conducting polyaminophenylboronic acid. Polymer resistance is calculated on the basis of the data of electrochemical impedance spectroscopy of polymer–modified interpenetrating gold microelectrodes with the interelectrode distance of 10 μm. Polymer degradation and the background signal are directed towards an increase in resistance counter to the change in the polymer properties in the presence of microorganisms. Thus, the developed sensor is applicable in practice, as it allows distinguishing the signal of specific binding from nonspecific background processes. The lower limit of determinedmicroorganism content was 600 colony–forming units per 1 ml (CFU/ml).