Ji Min Choi
KAIST
6 Papers
44 Citations
Ji Min Choi is an academic researcher from KAIST. The author has contributed to research in topics: Charge trap flash & Detection limit. The author has an hindex of 5, co-authored 6 publications.
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Papers
Integration of field effect transistor-based biosensors with a digital microfluidic device for a lab-on-a-chip application
TL;DR: A new platform for lab-on-a-chip system is suggested that utilizes a biosensor array embedded in a digital microfluidic device that can electrically detect avian influenza antibody (anti-AI) in real time by tracing the drain current of the FET-based biosensor without a labeling process.
68
Thermofluorescent Conjugated Polymer Sensors for Nano- and Microscale Temperature Monitoring
Oktay Yarimaga,Oktay Yarimaga,Sumi Lee,Dae Young Ham,Ji Min Choi,Soon Gyu Kwon,Maesoon Im,Sungho Kim,Jong-Man Kim,Yang-Kyu Choi +9 more
TL;DR: In this paper, it is shown that due to the inherent irreversible non-fluorescence to fluorescence transition feature of polydiacetylene (PDA) supramolecules that occurs in response to thermal perturbations, PDA vesicles embedded in a host polymer matrix function as nano/microscale temperature indicators.
47
Droplet transportation using a pre-charging method for digital microfluidics
TL;DR: In this article, a droplet is initially charged by applying pre-charging voltage between the droplet and an electrode buried under dielectric layers, and then driven to the next electrode by applying "driving" voltage between two adjacent buried electrodes.
23
Improvement of Sensitivity and Limit of Detection in a Nanogap Biosensor by Controlling Surface Wettability
TL;DR: In this article, a passivation layer composed of CYTOPTM was used to control the surface wettability of a biosensor to improve the sensitivity and limit of detection (LOD) in an electrical label-free detection.
9
An electrostatic micromechanical biosensor for electrical detection of label-free DNA
Ji Min Choi,Sung Up Hwang,Changhoon Kim,Hyun-Ho Yang,Cheulhee Jung,Hyun Gyu Park,Jun-Bo Yoon,Yang-Kyu Choi +7 more
TL;DR: In this article, an electrostatic micromechanical biosensor is demonstrated for label-free electrical detection of DNA, based on electrostatic actuation of a double-clamped micro-censor by driving gate electrodes to establish a current path through drain and source electrodes.