A5025427843- Advanced biosensing and bioanalysis techniques
- Molecular Junctions and Nanostructures
- Biosensors and Analytical Detection
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Neuroscience and Neural Engineering
- Photoreceptor and optogenetics research
- Analytical Chemistry and Sensors
- 3D Printing in Biomedical Research
- Microfluidic and Bio-sensing Technologies
- Nanofabrication and Lithography Techniques
- Microfluidic and Capillary Electrophoresis Applications
- Graphene and Nanomaterials Applications
- Advanced Biosensing Techniques and Applications
- RNA Interference and Gene Delivery
- Semiconductor materials and devices
- Photochromic and Fluorescence Chemistry
- Conducting polymers and applications
- SARS-CoV-2 detection and testing
- Anodic Oxide Films and Nanostructures
- Nanowire Synthesis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Mosquito-borne diseases and control
- Photosynthetic Processes and Mechanisms
- Bacteriophages and microbial interactions
Chung-Ang University
2016-2025
Johns Hopkins University
2024
Samsung (South Korea)
2004-2020
Korea University
2000-2018
Yonsei University
2018
Korea University Medical Center
2018
CHA University
2018
Chung Cheong University
2016
Gachon University
2009-2012
Kyungdong University
2007-2011
Dopamine is a key molecule in neurotransmission and has been known to be responsible for several neurological diseases. Hence, its sensitive selective detection important the early diagnosis of diseases related abnormal levels dopamine. In this study, we reported new cylindrical gold nanoelectrode (CAuNE) platform fabricated via sequential laser interference lithography electrochemical deposition. Among electrodes, CAuNEs with diameter 700 nm, 150 s deposited, was found best dopamine...
A subnanometer gap-separated linear chain gold nanoparticle (AuNP) silica nanotube peapod (SNTP) was fabricated by self-assembly. The geometrical configurations of the AuNPs inside SNTPs were managed in order to pose either a single-line or double-line nanostructure controlling diameters and orifice nanotubes (SNTs). internalized self-assembled linearly SNTs capillary force using repeated wet-dry process on rocking plate. Transmission electron microscopy (TEM) images clearly indicated that...
A multilevel biomemory device displays two pairs of nonvolatile write, read, and erase functions (see figure). The consists recombinant azurin/cytochrome c. Azurin is recombined with a cysteine residue to enhance the stability self-assembled protein on gold surface. Then, cytochrome c adsorbed onto immobilized azurin layer. verified memory characteristic proposed implies that metalloprotein very promising molecule for development new type device.
Abstract Zika virus is a highly infectious that part of the flavivirus group. Precise diagnosis significant issue for controlling global pandemic after COVID-19 era. For first time, we describe zika aptamer-based electrical biosensor detecting in human serum. The composed aptamer/MXene nanoparticle heterolayer on Au micro-gap electrode (AuMGE)/print circuit board (PCB) system. aptamer was designed to bind envelope protein by systematic evolution ligands exponential enrichment (SELEX)...
Abstract Interdigitated ultramicroelectrode arrays (IDUAs) were fabricated on glass wafers and investigated to obtain optimal oxidation reduction reactions of potassium ferro/ferrihexacyanide, Fe 2+/3+ (CN) 6 , when using a 2‐electrode set up. These electrodes will be used as transducers in portable microfluidic‐based biosensors the future for detection an aqueous, biocompatible matrix. IDUAs designed maximize signal‐to‐noise ratio (S/N) investigating electrode height, gap size, finger...
Aflatoxin B1 (AFB1) is produced by the Aspergillus flavus and parasiticus group of fungi which most hepatotoxic hepatocarcinogenic occurs as a contaminant in variety foods. AFB1 mutagenic, teratogenic, causes immunosuppression animals mostly found peanuts, corn, food grains. Therefore, novel methodologies sensitive expedient strategy are often required to detect mycotoxins at lowest level. Herein, we report an electrochemical impedance sensor that selectively detects level utilizing...
Abstract The unprecedented threat of the highly contagious virus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes exponentially increased infections disease 2019 (COVID-19), highlights weak spots current diagnostic toolbox. In midst catastrophe, nanobiosensors offer a new opportunity as an alternative tool to fill gap among molecular tests, rapid antigen and serological tests. Nanobiosensors surpass potential tests because their enhanced sensitivity, thus enabling...