Evidence map›Paper›PMID 32157090›Full record

ArticleNature communications2020

Diverse nanostructures underlie thin ultra-black scales in butterflies.

Alexander L Davis, H Frederik Nijhout, Sönke Johnsen

Abstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

  1. Article
  2. Article
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  5. Article
  6. Infrared absorbers inspired by nature.Journal of the Royal Society, Interface · 2025
    Review
  7. Article
  8. Article
  9. Adaptive cooling strategy via human hair: High optothermal conversion efficiency of solar radiation into thermal dissipation.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Ultrablack color in velvet ant cuticle.Beilstein journal of nanotechnology · 2024
    Article
  11. Wood-based superblack.Nature communications · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The evolution of red color vision is linked to coordinated rhodopsin tuning in lycaenid butterflies.Proceedings of the National Academy of Sciences of the United States of America · 2021
    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

3 authors.

Alexander L DavisDepartment of Biology, Duke University, Durham, NC, 27708, USA. alexander96davis@gmail.com.ORCID 0000-0003-0614-1376
H Frederik NijhoutDepartment of Biology, Duke University, Durham, NC, 27708, USA.
Sönke JohnsenDepartment of Biology, Duke University, Durham, NC, 27708, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently, it has been shown that animals such as jumping spiders, birds, and butterflies have evolved ultra-black coloration comparable to the blackest synthetic materials. Of these, certain papilionid butterflies have reflectances approaching 0.2%, resulting from a polydisperse honeycomb structure. It is unknown if other ultra-black butterflies use this mechanism. Here, we examine a phylogenetically diverse set of butterflies and demonstrate that other butterflies employ simpler nanostructures that achieve ultra-black coloration in scales thinner than synthetic alternatives. Using scanning electron microscopy, we find considerable interspecific variation in the geometry of the holes in the structures, and verify with finite-difference time-domain modeling that expanded trabeculae and ridges, found across ultra-black butterflies, reduce reflectance up to 16-fold. Our results demonstrate that butterflies produce ultra-black by creating a sparse material with high surface area to increase absorption and minimize surface reflection. We hypothesize that butterflies use ultra-black to increase the contrast of color signals.

Indexed as

PigmentationAnimalsAnimal ScalesButterfliesComputer SimulationNanostructuresRefractometryWings, Animal

Identifiers

PMID32157090
PMCPMC7064527

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.