Evidence map›Paper›PMID 24950329›Full record

ArticleNature chemistry2014

Bulk protonic conductivity in a cephalopod structural protein.

David D Ordinario, Long Phan, Ward G Walkup, Jonah-Micah Jocson, Emil Karshalev, Nina Hüsken, Alon A Gorodetsky

Abstract read
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In one paragraph

Article in Nature chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
8.1field-weighted citation impact, top 1% 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

60 citing papers in PubMed, 265 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Electrochemically Driven Optical Dynamics of Reflectin Protein Films.Advanced materials (Deerfield Beach, Fla.) · 2025
    Article
  6. Hydrated cable bacteria exhibit protonic conductivity over long distances.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
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  20. Recyclable, Self-Healing Solid Polymer Electrolytes by Soy Protein-Based Dynamic Network.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

David D OrdinarioDepartment of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA.
Long PhanDepartment of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA.
Ward G WalkupDepartment of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA.
Jonah-Micah JocsonDepartment of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA.
Emil KarshalevDepartment of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA.
Nina HüskenDepartment of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA.
Alon A Gorodetsky1] Department of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, USA [2] Department of Chemistry, University of California, Irvine, Irvine, California 92697, USA.
University of California, Irvine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proton-conducting materials play a central role in many renewable energy and bioelectronics technologies, including fuel cells, batteries and sensors. Thus, much research effort has been expended to develop improved proton-conducting materials, such as ceramic oxides, solid acids, polymers and metal-organic frameworks. Within this context, bulk proton conductors from naturally occurring proteins have received somewhat less attention than other materials, which is surprising given the potential modularity, tunability and processability of protein-based materials. Here, we report proton conductivity for thin films composed of reflectin, a cephalopod structural protein. Bulk reflectin has a proton conductivity of ~2.6 × 10(-3) S cm(-1) at 65 °C, a proton transport activation energy of ~0.2 eV and a proton mobility of ~7 × 10(-3) cm(2) V(-1) s(-1). These figures of merit are similar to those reported for state-of-the-art artificial proton conductors and make it possible to use reflectin in protein-based protonic transistors. Our findings may hold implications for the next generation of biocompatible proton-conducting materials and protonic devices.

Indexed as

Proton TherapyAnimalsCephalopodaPolymersPolymers

Identifiers

PMID24950329
OpenAlexW1977301763

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.