Gwangju Institute of Science and Technology (GIST)

4 ARTICLES PUBLISHED IN JoVE

Engineering

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

¹Division of Scientific Instrumentation, Korea Basic Science Institute (KBSI), ²School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST)

A microchip fabrication process that incorporates plasmonic tweezers is presented here. The microchip enables the imaging of a trapped particle to measure maximal trapping forces.

Neuroscience

Fabrication of Fine Electrodes on the Tip of Hypodermic Needle Using Photoresist Spray Coating and Flexible Photomask for Biomedical Applications

Joho Yun¹, Jinhwan Kim², Jong-Hyun Lee^1,2

¹Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology (GIST), ²School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST)

The fabrication method for fine interdigitated electrodes (gap and width: 20 µm) at the tip of a hypodermic needle (diameter: 720 µm) is demonstrated using a spray coating and flexible film photomask in the photolithography process.

Neuroscience

Visual Evoked Potential Recordings in Mice Using a Dry Non-invasive Multi-channel Scalp EEG Sensor

Chanmi Yeon¹, Donghyeon Kim², Kiseon Kim², Euiheon Chung^1,3

¹Department of Biomedical Science and Engineering (BMSE), Gwangju Institute of Science and Technology (GIST), ²School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology (GIST), ³School of Mechanical Engineering (SME), Gwangju Institute of Science and Technology (GIST)

We designed a dry-type 16 channel EEG sensor which is non-invasive, deformable, and re-usable. This paper describes the whole process from manufacturing the proposed EEG electrode to signal processing of visual evoked potential (VEP) signals measured on a mouse scalp using a dry non-invasive multi-channel EEG sensor.

Engineering

4D Printed Bifurcated Stents with Kirigami-Inspired Structures

Dahong Kim¹, Taeyoung Kim¹, Yong-Gu Lee¹

¹School of Mechanical Engineering, Gwangju Institution of Science and Technology

Using a 3D printer, a shape memory polymer filament is extruded to form a branched tubular structure. The structure is patterned and shaped such that it can contract into a compact form once folded and then return to its formed shape when heated.