Choi Y. – TechConnect Briefs

Investigation of Metal Nano Layer Formation by the Tunneling Current through the Thin Oxide Film in the Electrolyte–Oxide–Silicon System

Lee S-H., Cheon J-H, Choi S., Choi Y., Choi S., Choi Y., Park Y.J., Seoul National University, KR

In the researches on Electrolyte–Oxide–Silicon (EOS) system, tunneling current through the gate insulator has been considered as an undesirable factor causing reliability issues such as gate insulator degradation and interface state generation. In this work, [...]

Detecting oxidation and reduction of Cytochrome c on Single Nanoparticles in Flow Using SERRS

Choi Y., Edel J.B., Albrecht T., Imperial College London, UK

Surface enhanced Raman spectroscopy (SERS) is a powerful tool used for observing molecules and their structural properties, due to their ability to enhance the otherwise weak Raman scattering signals on a roughened metal surface or [...]

Combining gene therapy and nanomedicine to enhance the therapeutic potential of T cells

Choi Y., Torikai H., Lee D.A., Lee D.Y., Li K.C., Li Z., Lo D., Qin G., Tung C.H., Tasciotti E., Raphael R., Biswal S.L., Ang S., Lee D.A., Lee D.Y., Li K.C., Li Z., Cooper L.J.N., M.D. Anderson Cancer Center, US

we have developed a high throughput electroporator (HiTE) to manipulate large numbers (~10^9) of T cells ex vivo for clinical uses. HiTE is designed to electro-transfer RNA species to redirect T-cell specificity and gold nanoparticles [...]

A Microfluidic Device for Opto-Electrochemical Sensing

Luo T.-J.M., Choi Y., Huh U., North Carolina State University, US

To integrate functionality of transmembrane proteins to devices, a platform compatible with proteins and phospholipids membrane is required. In our effort to address the needs for current and future research, we report a microfluidic device [...]

First-Principles Studies of SnS2 Nanotubes

Chang H., In E., Kong K-J, Lee J-O, Choi Y., Ryu B-H, Korea Research Institute of Chemical Technology, KR

First principles calculations are used to predict the stability and electronic structures of SnS2 nanotubes. Optimization of several structures and their corresponding strain energies confirms the stability of SnS2 nanotube structures. Band structure calculations show [...]

Simultaneous Determination of Heavy Metals Using Array Based Optical Chemical Sensor

Choi Y., Ryoo D., Park S.H., Park S.Y., Park S.H., Park S.Y., Jeonju University, KR

A sol-gel optical chemical sensor encapsulated with complexing agents for simultaneous detection of selected heavy metals such as chromium, lead, mercury, and iron in aqueous media was fabricated. The sensor was prepared by acid catalyzed [...]

A Fiber-Optic Biosensor Based on Monooxygenases and Sol–Gel Entrapped Fluoresceinamine for Trichloroethene and Tetrachloroethene

Ryoo D., Kim Y., Jeun K., Wood T., Choi Y., Jeonju Univ., KR

Tetrachloroethene (a.k.a. perchloroethene, PCE) and trichloroethene (TCE) are the most frequently detected groundwater contaminants which are suspected to cause cancer in humans. Monitoring of these carcinogens suffers from high costs and inaccuracy caused by cumbersome [...]