Publications
Detailed Information
(A) study of nanoporous platinum electrode for EEG signal quality enhancement : 뇌파 신호 품질 향상을 위한 나노다공성 백금 전극에 대한 연구
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 김희찬 | - |
dc.contributor.author | 김도윤 | - |
dc.date.accessioned | 2017-07-14T02:23:19Z | - |
dc.date.available | 2017-07-14T02:23:19Z | - |
dc.date.issued | 2015-02 | - |
dc.identifier.other | 000000026563 | - |
dc.identifier.uri | https://hdl.handle.net/10371/122448 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 협동과정 바이오엔지니어링전공, 2015. 2. 김희찬. | - |
dc.description.abstract | The significance of biopotential recording has been increasing in both medical and non-medical fields. Accurate signal acquisition using mini-mally invasive and less cumbersome electrode is one of the key issues in the biopotential measurement. In this study, a new type of electrode, called L2-ePt electrode that utilizes the stable nanoporous platinum sur-face to reduce electrode-skin contact impedance is introduced. To deter-mine the validity of using the L2-ePt electrode in biopotential recording applications, the L2-ePt electrode was compared to commercially availa-ble Ag/AgCl electrode and flat platinum electrode in terms of their elec-trode impedance levels both in solution and on human skin. Electroen-cephalogram signals on the subjects forehead were simultaneously ac-quired by each type of electrode to assess the signal correlation. In addi-tion, steady-state visual evoked potential (SSVEP) responses were meas-ured using commercially available gold-disc electrode, moistened-sponge L2-ePt electrode, and moistened-sponge flat platinum electrode for the signal-to-noise ratio (SNR) comparison. In the evaluation of the elec-trode-skin contact impedance and signal correlation, the L2-ePt electrodes performed significantly better than the flat platinum electrodes. Moreover, the paste-less L2-ePt electrode showed similar SNR performance to the commercial gold-disc electrode with paste. Therefore, the proposed L2-ePt electrode can be used even without paste to acquire accurate biosig-nals in applications where wet Ag/AgCl electrode is not suitable. | - |
dc.description.tableofcontents | Abstract i
Contents ii List of Figures iii 1. Introduction - 1 - 1.1. Background - 1 - 1.1.1. Biopotentials - 1 - 1.1.2. Skin and Electrode Interface - 2 - 1.1.3. Conventional Electrodes - 5 - 1.1.4. L2-ePt Electrode - 8 - 1.2. Objectives of Study - 10 - 2. Materials and Methods - 11 - 2.1. L2ePt electrode Fabrication - 11 - 2.1.1. Electrodeposition - 11 - 2.2. Electrode Impedance Measurement - 15 - 2.3. Skin-electrode Impedance Measurement - 16 - 2.4. Electroencephalography - 18 - 2.5. Statistical Analysis - 19 - 3. Results - 20 - 3.1. L2-ePt Electrode Fabrication - 20 - 3.2. Roughness Factor Calculations - 22 - 3.3. Electrode Impedance Measurements - 24 - 3.4. Skin-electrode Impedance Measurements - 27 - 3.5. Electroencephalogram Measurements - 31 - 4. Discussion and Conclusion - 33 - 4.1. Discussion - 33 - 4.2. Conclusion - 37 - References - 39 - 국문초록 - 41 - | - |
dc.format | application/pdf | - |
dc.format.extent | 1716709 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | 생체신호 측정 | - |
dc.subject.ddc | 660 | - |
dc.title | (A) study of nanoporous platinum electrode for EEG signal quality enhancement | - |
dc.title.alternative | 뇌파 신호 품질 향상을 위한 나노다공성 백금 전극에 대한 연구 | - |
dc.type | Thesis | - |
dc.contributor.AlternativeAuthor | Do Youn Kim | - |
dc.description.degree | Master | - |
dc.citation.pages | 43 | - |
dc.contributor.affiliation | 공과대학 협동과정 바이오엔지니어링전공 | - |
dc.date.awarded | 2015-02 | - |
- Appears in Collections:
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.