Projects Synthesis Materials Fabrication Devices Characterization Theory
This year we have nearly 30 projects covering a wide range of nanoscience, including facile synthesis of organic and inorganic nanowires and nanostructures, novel fabrication routes, building of functional bioarchitectures, nanostructured devices and nanowire applications. Please browse the menu (hover on a group and click on the project of choice) to view brief overviews of our projects.
Amperometric Lactate biosensor based on MoO3 nanowires
In collaboration with Serhiy-cherevko and Prof. Chan-hwa Chung in the Chemical Engineering Department of SKKU, we are trying to explore the biosensor applications of MoO3 nanowires. Single crystal MoO3 nanowires were synthesized in bulk quantity by using hydrothermal method. The electrochemical lactate biosensor was fabricated on gold electrode by immobilizing Lactate oxidase (LOx) enzyme on MoO3 nanowires. The developed MoO3 biosensor showed a fast response to lactic acid and linear response ranged from 0.01 mM to 1.5 mM with an experiment limit of detection of 0.01 mM with a response time of less than 10 s. The use of a low operating potential (-0.6 V) and Nafion membrane produced good selectivity toward the lactate detection. These results indicate that MoO3 nanowires can provide a promising material for the biosensor designs and biological applications.

Cyclic voltammograms of modified electrode in PBS with and with out lactate