Publications by authors named "Chil-Hyoung Lee"
Cell culture substrates designed for myocardial applications are pivotal in promoting the maturation and functional integration of cardiomyocytes. However, traditional in vitro models often inadequately mimic the diverse biochemical signals and electrophysiological properties of mature cardiomyocytes. Herein, we propose the application of monolayer graphene, transferred onto SU-8 cantilevers integrated with a microelectrode array, to evaluate its influence on the structural, functional, and electro-mechano-physiological properties of cardiomyocytes.
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- Polycyclic aromatic hydrocarbons (PAHs) are harmful chemicals that can cause cancer and are found in the environment, especially in soil.
- A study looked at the risks of PAH pollution in five areas of Korea, finding that Gunsan had moderate to high ecological and cancer risks due to pollution from the air.
- The research suggested that Korea needs to take action to reduce the release of these harmful substances, especially in Gunsan where the pollution levels are concerning.
We report on the electrical characteristics of AlGaN/GaN high-electron mobility transistors (HEMTs) with hexagonal boron nitride (h-BN) as a passivation capping layer. The HEMTs with h-BN layers showed an increase in current drainage and 103-times reduction in the gate-leakage current compared with those of conventional unpassivated HEMTs. Moreover, the extrinsic transconductance and the pulse responses were improved due to the reduced charge-trapping effect at the surface of HEMTs.
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