Extracting Photosynthetic Electrons from Thylakoids on Micro Pillar Electrode

Dong Hyun Ryu, Yong Jae Kim, WonHyoung Ryu

Research output: Contribution to journalArticle

Abstract

Extraction of photosynthetic currents from thylakoids was studied using micro pillar structured electrode. Thylakoids were isolated from spinach leaves, and the size and shape of thylakoids were estimated from scanning electron microscopy images. Based on the geometry information of thylakoids, micro pillar shaped electrode was designed and fabricated using metal-assisted chemical etching of silicon wafers. Influence of photovoltaic effect on the silicon-based micro pillar electrode was confirmed to be negligible. Photosynthetic currents were measured in a three-electrode setup with an electron mediator, potassium ferricyanide. Photosynthetic currents from micro pillar electrodes were enhanced compared with the currents from flat electrodes. This indicates the significance of the enhanced contact between thylakoids and an electrode for harvesting photosynthetic electrons.

Original languageEnglish
Pages (from-to)631-636
Number of pages6
JournalInternational Journal of Precision Engineering and Manufacturing - Green Technology
Volume5
Issue number5
DOIs
Publication statusPublished - 2018 Oct 1

Fingerprint

Electrodes
Electrons
Photovoltaic effects
Silicon
Mediator
Scanning electron microscopy
Metals
Geometry
Silicon wafers
Potassium
Etching

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Management of Technology and Innovation

Cite this

@article{f3306f3f5ba646a690ad66c26a6a2665,
title = "Extracting Photosynthetic Electrons from Thylakoids on Micro Pillar Electrode",
abstract = "Extraction of photosynthetic currents from thylakoids was studied using micro pillar structured electrode. Thylakoids were isolated from spinach leaves, and the size and shape of thylakoids were estimated from scanning electron microscopy images. Based on the geometry information of thylakoids, micro pillar shaped electrode was designed and fabricated using metal-assisted chemical etching of silicon wafers. Influence of photovoltaic effect on the silicon-based micro pillar electrode was confirmed to be negligible. Photosynthetic currents were measured in a three-electrode setup with an electron mediator, potassium ferricyanide. Photosynthetic currents from micro pillar electrodes were enhanced compared with the currents from flat electrodes. This indicates the significance of the enhanced contact between thylakoids and an electrode for harvesting photosynthetic electrons.",
author = "Ryu, {Dong Hyun} and Kim, {Yong Jae} and WonHyoung Ryu",
year = "2018",
month = "10",
day = "1",
doi = "10.1007/s40684-018-0065-y",
language = "English",
volume = "5",
pages = "631--636",
journal = "International Journal of Precision Engineering and Manufacturing - Green Technology",
issn = "2288-6206",
publisher = "Springer Science + Business Media",
number = "5",

}

Extracting Photosynthetic Electrons from Thylakoids on Micro Pillar Electrode. / Ryu, Dong Hyun; Kim, Yong Jae; Ryu, WonHyoung.

In: International Journal of Precision Engineering and Manufacturing - Green Technology, Vol. 5, No. 5, 01.10.2018, p. 631-636.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Extracting Photosynthetic Electrons from Thylakoids on Micro Pillar Electrode

AU - Ryu, Dong Hyun

AU - Kim, Yong Jae

AU - Ryu, WonHyoung

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Extraction of photosynthetic currents from thylakoids was studied using micro pillar structured electrode. Thylakoids were isolated from spinach leaves, and the size and shape of thylakoids were estimated from scanning electron microscopy images. Based on the geometry information of thylakoids, micro pillar shaped electrode was designed and fabricated using metal-assisted chemical etching of silicon wafers. Influence of photovoltaic effect on the silicon-based micro pillar electrode was confirmed to be negligible. Photosynthetic currents were measured in a three-electrode setup with an electron mediator, potassium ferricyanide. Photosynthetic currents from micro pillar electrodes were enhanced compared with the currents from flat electrodes. This indicates the significance of the enhanced contact between thylakoids and an electrode for harvesting photosynthetic electrons.

AB - Extraction of photosynthetic currents from thylakoids was studied using micro pillar structured electrode. Thylakoids were isolated from spinach leaves, and the size and shape of thylakoids were estimated from scanning electron microscopy images. Based on the geometry information of thylakoids, micro pillar shaped electrode was designed and fabricated using metal-assisted chemical etching of silicon wafers. Influence of photovoltaic effect on the silicon-based micro pillar electrode was confirmed to be negligible. Photosynthetic currents were measured in a three-electrode setup with an electron mediator, potassium ferricyanide. Photosynthetic currents from micro pillar electrodes were enhanced compared with the currents from flat electrodes. This indicates the significance of the enhanced contact between thylakoids and an electrode for harvesting photosynthetic electrons.

UR - http://www.scopus.com/inward/record.url?scp=85054604830&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054604830&partnerID=8YFLogxK

U2 - 10.1007/s40684-018-0065-y

DO - 10.1007/s40684-018-0065-y

M3 - Article

AN - SCOPUS:85054604830

VL - 5

SP - 631

EP - 636

JO - International Journal of Precision Engineering and Manufacturing - Green Technology

JF - International Journal of Precision Engineering and Manufacturing - Green Technology

SN - 2288-6206

IS - 5

ER -