Evidence map›Paper›PMID 30796237›Full record

ArticleNature communications2019

Photosynthetic apparatus of Rhodobacter sphaeroides exhibits prolonged charge storage.

Sai Kishore Ravi, Piper Rawding, Abdelnaby M Elshahawy, Kevin Huang, Wanxin Sun, Fangfang Zhao, John Wang, Michael R Jones, Swee Ching Tan

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
4.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Enhanced Biophotocurrent Generation in Living Photosynthetic Optical Resonator.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 3 countries.

Sai Kishore RaviDepartment of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore.ORCID http://orcid.org/0000-0002-9785-3215
Piper RawdingDepartment of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Ave, Madison, WI, 53706, USA.
Abdelnaby M ElshahawyDepartment of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore.ORCID http://orcid.org/0000-0001-8353-4945
Kevin HuangDepartment of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304W Green St, Urbana, IL, 61801, USA.
Wanxin SunBruker Nano Surface Division, 11 Biopolis Way #10-10, The Helios, Singapore, 138667, Singapore.
Fangfang ZhaoBruker Nano Surface Division, 11 Biopolis Way #10-10, The Helios, Singapore, 138667, Singapore.
John WangDepartment of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore.
Michael R JonesSchool of Biochemistry, University of Bristol, Biomedical Sciences Building, University Walk, Bristol, BS8 1TD, UK.
Swee Ching TanDepartment of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore. msetansc@nus.edu.sg.ORCID http://orcid.org/0000-0003-2074-8385
National University of Singapore · SGUniversity of Bristol · GBUniversity of Illinois Urbana-Champaign · USUniversity of Wisconsin–Madison · US

Funding

Biotechnology and Biological Sciences Research Council BB/L01386X/1
6 · The paper itself

Abstract

Photosynthetic proteins have been extensively researched for solar energy harvesting. Though the light-harvesting and charge-separation functions of these proteins have been studied in depth, their potential as charge storage systems has not been investigated to the best of our knowledge. Here, we report prolonged storage of electrical charge in multilayers of photoproteins isolated from Rhodobacter sphaeroides. Direct evidence for charge build-up within protein multilayers upon photoexcitation and external injection is obtained by Kelvin-probe and scanning-capacitance microscopies. Use of these proteins is key to realizing a 'self-charging biophotonic device' that not only harvests light and photo-generates charges but also stores them. In strong correlation with the microscopic evidence, the phenomenon of prolonged charge storage is also observed in primitive power cells constructed from the purple bacterial photoproteins. The proof-of-concept power cells generated a photovoltage as high as 0.45 V, and stored charge effectively for tens of minutes with a capacitance ranging from 0.1 to 0.2 F m

Indexed as

Electromagnetic PhenomenaBioelectric Energy SourcesElectrochemistryElectron TransportLight-Harvesting Protein ComplexesPhotosynthesisRhodobacter sphaeroidesLight-Harvesting Protein Complexes

Identifiers

PMID30796237
PMCPMC6385238
OpenAlexW2917658119

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.