Evidence map›Paper›PMID 34123069›Full record

ArticleChemical science2020

Mechanochemical synthesis of glycine oligomers in a virtual rotational diamond anvil cell.

Brad A Steele, Nir Goldman, I-Feng W Kuo, Matthew P Kroonblawd

Open access · diamondAbstract read
In one paragraph

Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

5 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Frontiers in Prebiotic Chemistry and Early Earth Environments.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2022
    Article
  5. Review
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

4 authors at 1 institution in 1 country.

Brad A SteelePhysical and Life Sciences Directorate, Lawrence Livermore National Laboratory Livermore CA 94550 USA kroonblawd1@llnl.gov.ORCID https://orcid.org/0000-0002-8703-024X
Nir GoldmanPhysical and Life Sciences Directorate, Lawrence Livermore National Laboratory Livermore CA 94550 USA kroonblawd1@llnl.gov.ORCID https://orcid.org/0000-0003-3052-2128
I-Feng W KuoPhysical and Life Sciences Directorate, Lawrence Livermore National Laboratory Livermore CA 94550 USA kroonblawd1@llnl.gov.ORCID https://orcid.org/0000-0002-5258-1041
Matthew P KroonblawdPhysical and Life Sciences Directorate, Lawrence Livermore National Laboratory Livermore CA 94550 USA kroonblawd1@llnl.gov.ORCID https://orcid.org/0000-0002-5009-5998
Lawrence Livermore National Laboratory · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mechanochemistry of glycine under compression and shear at room temperature is predicted using quantum-based molecular dynamics (QMD) and a simulation design based on rotational diamond anvil cell (RDAC) experiments. Ensembles of high throughput semiempirical density functional tight binding (DFTB) simulations are used to identify chemical trends and bounds for glycine chemistry during rapid shear under compressive loads of up to 15.6 GPa. Significant chemistry is found to occur during compressive shear above 10 GPa. Recovered products consist of small molecules such as water, structural analogs to glycine, heterocyclic molecules, large oligomers, and polypeptides including the simplest polypeptide glycylglycine at up to 4% mass fraction. The population and size of oligomers generally increases with pressure. A number of oligomeric polypeptide precursors and intermediates are also identified that consist of two or three glycine monomers linked together through C-C, C-N, and/or C-O bridges. Even larger oligomers also form that contain peptide C-N bonds and exhibit branched structures. Many of the product molecules exhibit one or more chiral centers. Our simulations demonstrate that athermal mechanical compressive shearing of glycine is a plausible prebiotic route to forming polypeptides.

Identifiers

PMID34123069
PMCPMC8163322
OpenAlexW3044299168

What OpenQuestion holds

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LicenceCC BY-NC
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.