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MEMS-based Microelectrode Technologies Capable of Penetrating Neural Tissues

Title
MEMS-based Microelectrode Technologies Capable of Penetrating Neural Tissues
Authors
추남선변동학김소희
DGIST Authors
김소희
Issue Date
2014
Citation
Biomedical Engineering Letters (BMEL), 4(2), 109-119
Type
Article
Keywords
Penetrating electrodeNeural electrodeMicroelectrodeSilicon-basedPolymer-basedMEMS
ISSN
2093-9868
Abstract
Due to the high spatial selectivity and resolution with highaccessibility to single neurons, penetrating neural electrodeshave been used for neuronal recording or stimulation inspecific applications although they are invasive, thus inducingmore inflammatory response and damages to the tissue,compared to non-penetrating electrodes. Penetrating electrodesare mainly made up of stiff materials such as metal wires,silicon, or glass. Compared to microwire electrodes, siliconbasedpenetrating electrodes are fabricated in precise designsand dimensions, often in forms of array with higher numberof independent channels. Although precise 2-D and 3-Delectrode structures are used in many applications, efforts tomake them more biocompatible and long-lasting have beenreported recently. On the other hand, soft materials such aspolymers have also been lately used in penetrating electrodesto accommodate their flexibility and mechanical propertiesthat are more favorable to neural tissues, minimizing adverseeffects on tissues. Polymer-based electrodes are promisingfor future applications where better biocompatibility isrequired although technical hurdles in using them in longterm have to be overcome.
URI
http://hdl.handle.net/20.500.11750/4924
DOI
10.1007/s13534-014-0133-3
Publisher
대한의용생체공학회
Related Researcher
  • Author Kim, So Hee Neural Interfaces & MicroSystems Lab
  • Research Interests Neural interface; Neural stimulation; Bio MEMS; Stretchable electronics; Numerical simulation of implant-body interactions
Files:
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Collection:
Robotics EngineeringNeural Interfaces & MicroSystems Lab1. Journal Articles


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