Sungrok Ko

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We describe the detection of glucose based on a liquid-ion gated field-effect transistor configuration in which enzyme-functionalized polypyrrole nanotubes are employed as the conductive channel. First of all, carboxylated polypyrrole nanotubes (CPNTs) were successfully fabricated by the chemical polymerization of an intrinsically functionalized monomer(More)
Recently, protein carriers based on nanomaterials have been highlighted in diverse biological applications such as protein extraction, separation, and delivery due to their facile gravimetric sedimentation in the aqueous phase and abundant surface functionalities, which were used as anchoring sites for proteins. From this viewpoint, poly(glycidyl(More)
Pristine (carboxylated) and aminated polypyrrole nanotubes were successfully fabricated using vapor deposition polymerization with a template. In particular, aminated polypyrrole nanotubes were readily synthesized by modifying the nanotube surface with open polyamine chains. Pristine and aminated polymer nanotubes were used as the transducer to acetic acid(More)
Conjugated polymers for oligonucleotide immobilization offer extraordinary potential as transducers for detecting DNA duplex formation, because the electrical, optical, and electrochemical properties are strongly affected by relatively small perturbations. Moreover, carboxylated conducting polymer supports are an attractive alternative due to their(More)
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