Skip to content

High-Performance UV Enhancer Molecules Coupled with Photosynthetic Proteins for Ultra-Low-Intensity UV Detection

Research output: Contribution to journalArticle

Standard

High-Performance UV Enhancer Molecules Coupled with Photosynthetic Proteins for Ultra-Low-Intensity UV Detection. / Suresh, Lakshmi; Vaghasiya, Jayraj; Nandakumar, Dilip Krishna; Wu, Tingfeng; Jones, Mike; Tan, Swee Ching.

In: Chem, Vol. 5, No. 7, 11.07.2019, p. 1847-1860.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Suresh, Lakshmi ; Vaghasiya, Jayraj ; Nandakumar, Dilip Krishna ; Wu, Tingfeng ; Jones, Mike ; Tan, Swee Ching. / High-Performance UV Enhancer Molecules Coupled with Photosynthetic Proteins for Ultra-Low-Intensity UV Detection. In: Chem. 2019 ; Vol. 5, No. 7. pp. 1847-1860.

Bibtex

@article{8e03e3dbb8fe4ad6982fd1ef538d70b2,
title = "High-Performance UV Enhancer Molecules Coupled with Photosynthetic Proteins for Ultra-Low-Intensity UV Detection",
abstract = "Dual attributes of UV-photo-responsive organic-ionic conductors are exploited in bio-photoelectrochemical cells based on photosynthetic RC-LH1 proteins from Rhodobacter sphaeroides. These UV enhancer molecules (UVEM) can generate small photocurrents in the absence of protein and are also effective electrolytes for photocurrent generation by RC-LH1 complexes in response to near-infrared excitation. Mixing RC-LH1 and UVEM components strongly enhanced UV photocurrents relative to those obtained with protein or UVEM alone, an effect that is attributed to energy transfer from the hetero-anthracene chromophore of the UVEM to the carotenoids of the RC-LH1 complex. RC-LH1/UVEM bio-photoelectrochemical cells were superior to conventional RC-LH1 cells in terms of UV external quantum efficiency, photo-response sensitivity, and photocurrent rise-decay times. These bio-photodetectors could detect weak UV radiation with intensities as low as 2 μW/cm2. This combination of photosynthetic proteins with dual-function electrolytes is the first attempt to construct fully functional bio-photoelectrochemical UV photodetector based on natural components.",
keywords = "bio-photoelectrochemical cell, FRET, organic ionic conductors, organic UV enhancer molecule, photosynthetic proteins, SDG7: Affordable and clean energy, ultra-low intensity UV detection, UV detector",
author = "Lakshmi Suresh and Jayraj Vaghasiya and Nandakumar, {Dilip Krishna} and Tingfeng Wu and Mike Jones and Tan, {Swee Ching}",
year = "2019",
month = "7",
day = "11",
doi = "10.1016/j.chempr.2019.04.017",
language = "English",
volume = "5",
pages = "1847--1860",
journal = "Chem",
issn = "2451-9308",
publisher = "Cell Press",
number = "7",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - High-Performance UV Enhancer Molecules Coupled with Photosynthetic Proteins for Ultra-Low-Intensity UV Detection

AU - Suresh, Lakshmi

AU - Vaghasiya, Jayraj

AU - Nandakumar, Dilip Krishna

AU - Wu, Tingfeng

AU - Jones, Mike

AU - Tan, Swee Ching

PY - 2019/7/11

Y1 - 2019/7/11

N2 - Dual attributes of UV-photo-responsive organic-ionic conductors are exploited in bio-photoelectrochemical cells based on photosynthetic RC-LH1 proteins from Rhodobacter sphaeroides. These UV enhancer molecules (UVEM) can generate small photocurrents in the absence of protein and are also effective electrolytes for photocurrent generation by RC-LH1 complexes in response to near-infrared excitation. Mixing RC-LH1 and UVEM components strongly enhanced UV photocurrents relative to those obtained with protein or UVEM alone, an effect that is attributed to energy transfer from the hetero-anthracene chromophore of the UVEM to the carotenoids of the RC-LH1 complex. RC-LH1/UVEM bio-photoelectrochemical cells were superior to conventional RC-LH1 cells in terms of UV external quantum efficiency, photo-response sensitivity, and photocurrent rise-decay times. These bio-photodetectors could detect weak UV radiation with intensities as low as 2 μW/cm2. This combination of photosynthetic proteins with dual-function electrolytes is the first attempt to construct fully functional bio-photoelectrochemical UV photodetector based on natural components.

AB - Dual attributes of UV-photo-responsive organic-ionic conductors are exploited in bio-photoelectrochemical cells based on photosynthetic RC-LH1 proteins from Rhodobacter sphaeroides. These UV enhancer molecules (UVEM) can generate small photocurrents in the absence of protein and are also effective electrolytes for photocurrent generation by RC-LH1 complexes in response to near-infrared excitation. Mixing RC-LH1 and UVEM components strongly enhanced UV photocurrents relative to those obtained with protein or UVEM alone, an effect that is attributed to energy transfer from the hetero-anthracene chromophore of the UVEM to the carotenoids of the RC-LH1 complex. RC-LH1/UVEM bio-photoelectrochemical cells were superior to conventional RC-LH1 cells in terms of UV external quantum efficiency, photo-response sensitivity, and photocurrent rise-decay times. These bio-photodetectors could detect weak UV radiation with intensities as low as 2 μW/cm2. This combination of photosynthetic proteins with dual-function electrolytes is the first attempt to construct fully functional bio-photoelectrochemical UV photodetector based on natural components.

KW - bio-photoelectrochemical cell

KW - FRET

KW - organic ionic conductors

KW - organic UV enhancer molecule

KW - photosynthetic proteins

KW - SDG7: Affordable and clean energy

KW - ultra-low intensity UV detection

KW - UV detector

UR - http://www.scopus.com/inward/record.url?scp=85068249907&partnerID=8YFLogxK

U2 - 10.1016/j.chempr.2019.04.017

DO - 10.1016/j.chempr.2019.04.017

M3 - Article

VL - 5

SP - 1847

EP - 1860

JO - Chem

JF - Chem

SN - 2451-9308

IS - 7

ER -