Evidence map›Paper›PMID 34471148›Full record

ArticleScientific reports2021

The homogenous alternative to biomineralization: Zn- and Mn-rich materials enable sharp organismal "tools" that reduce force requirements.

R M S Schofield, J Bailey, J J Coon, A Devaraj, R W Garrett, M S Goggans, M G Hebner, B S Lee, D Lee, N Lovern and 9 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.5field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Article
  3. Zinc accumulation in the jaw of Nereis aibuhitensis.The Journal of experimental biology · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Battles between ants (Hymenoptera: Formicidae): a review.Journal of insect science (Online) · 2024
    Review
  14. The puncture mechanics: an example from the bed bugJournal of the Royal Society, Interface · 2024
    Article
  15. Desert locusts (Interface focus · 2024
    Article
  16. Article
  17. Wear patterns of radular teeth inInterface focus · 2024
    Article
  18. Article
  19. Article
  20. Biomechanics of cutting: sharpness, wear sensitivity and the scaling of cutting forces in leaf-cutter ant mandibles.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    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

19 authors at 3 institutions in 1 country.

R M S SchofieldDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA. rmss@uoregon.edu.
J BaileyDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
J J CoonDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
A DevarajPhysical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
R W GarrettDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
M S GoggansDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
M G HebnerDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
B S LeeDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
D LeeDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
N LovernDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
S Ober-SingletonDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
N SaephanDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
V R SeagalDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
D M SilverDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
H E SomDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
J TwitchellDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
X WangPhysical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
J S ZimaDepartment of Physics, University of Oregon, 1274, Eugene, OR, 97403, USA.
M H NessonDepartment of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA.
University of Oregon · USPacific Northwest National Laboratory · USOregon State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We measured hardness, modulus of elasticity, and, for the first time, loss tangent, energy of fracture, abrasion resistance, and impact resistance of zinc- and manganese-enriched materials from fangs, stings and other "tools" of an ant, spider, scorpion and nereid worm. The mechanical properties of the Zn- and Mn-materials tended to cluster together between plain and biomineralized "tool" materials, with the hardness reaching, and most abrasion resistance values exceeding, those of calcified salmon teeth and crab claws. Atom probe tomography indicated that Zn was distributed homogeneously on a nanometer scale and likely bound as individual atoms to more than ¼ of the protein residues in ant mandibular teeth. This homogeneity appears to enable sharper, more precisely sculpted "tools" than materials with biomineral inclusions do, and also eliminates interfaces with the inclusions that could be susceptible to fracture. Based on contact mechanics and simplified models, we hypothesize that, relative to plain materials, the higher elastic modulus, hardness and abrasion resistance minimize temporary or permanent tool blunting, resulting in a roughly 2/3 reduction in the force, energy, and muscle mass required to initiate puncture of stiff materials, and even greater force reductions when the cumulative effects of abrasion are considered. We suggest that the sharpness-related force reductions lead to significant energy savings, and can also enable organisms, especially smaller ones, to puncture, cut, and grasp objects that would not be accessible with plain or biomineralized "tools".

Identifiers

PMID34471148
PMCPMC8410824
OpenAlexW3198383514

What OpenQuestion holds

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Registered trials

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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.