RESEARCH / OVERVIEW

* Last updated: March 30, 2025

Research fields related to electrochemistry, materials science, nanofabrication, analytical chemistry, and nanochemistry

1. Electrochemical Sensors for Smart-Farm and Ag-Tech

New ionophores for ion-selective electrodes

Synthesis of phosphorus-related ionophores and their characterization

Preparation and optimization of liquid-membrane ion-selective electrodes

Nitrogen-related ions (nitrate, nitrite, and ammonium)

Phosphorus-related ions (phosphate, monohydrogen phosphate, and dihydrogen phosphate)

Potassium ion

pH

Development of screen-printed ion-selective electrodes with long-term stability

Fabrication of patterned carbon electrodes using screen-printing

1. Nanoelectrochemistry, nanoscale electrochemical imaging, and pipette-based nanolithography

Understanding electrochemical behavior at the single entity level

Nanoscale electrochemical characterization of nanoparticles and two-dimensional materials

Energy storage and conversion reactions at the nanoscale

Analysis of stochastic phenomena, density of states, quantum capacitance, and electrical double layer 

New electrochemical theory at the nanoscale

Development of In-situ and operando electrochemical imaging techniques

Scanning electrochemical microscopy (SECM), scanning ion conductance microscopy (SICM), scanning electrochemical cell microscopy (SECCM), SECM-SICM, SICM-SECCM, electrochemical atomic force microscopy (AFM), SECM-AFM, electrochemical scanning tunneling microscopy, and scanning electrochemical potential microscopy

Meniscus-guided three-dimensional fountain pen nanolithography

Three-dimensional electrodeposition, electrochemical etching, and printing using multi-functional probes 

2. Electrochemical sensors for ions, small molecules, and biomolecules

Electrochemical ion sensors

Synthesis of new ionophores and their characterization

Development of liquid-membrane ion-selective electrodes

Applications of ion-selective electrodes for environmental monitoring (agriculture, aquaculture, drinking water, industry, food, and wastewater)

- ion-selective electrodes (nitrogen, phosphorus, and potassium-related ions) and their packaging for smart-farm

Electrochemical glucose sensors

Disposable glucose sensors

Continuous glucose monitoring system

Electrochemical nucleic acid sensors

Screen-printed electrodes

3. Molecular electrochemistry and modified electrodes

Physical electrochemistry and spectroelectrochemistry

Electrochemical characterization of electroactive molecules and materials

Electrochemical surface modification

Tunable electrografting of aryldiazonium

Redox mediators

Synthesis of new redox mediators and their characterization

Polymers

Electropolymerization for conducting and conjugating polymers

Redox polymers

4. Fabrication of lithographically patterned electrodes

Top-down lithography

E-beam lithography, photolithography, focused ion beam

Bottom-up lithography

Electrodeposition and nanosphere lithography

Electric-field assisted substrates

5. Innovative electrochemical system for energy conversion and storage

Electrocatalysis and electrochemical energy conversion

Hydrogen oxidation, hydrogen evolution, oxygen evolution, oxygen reduction, alcohol oxidation, carbon dioxide reduction, nitrogen reduction, and ammonia oxidation