# PNNL develops metal-free peptoid assemblies for carbon mineralization

> PNNL reported on October 14 on crystalline peptoid nanosheets and nanotubes that mimic enzymes without metal cofactors. Histidine-inspired catalytic groups promoted conversion of carbon dioxide into bicarbonate and carbonate-mineral formation in the presence of calcium.

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- Publisher: Newsverum
- Section: Technology
- Country: United States
- Published: 2026-10-15T23:48:24+00:00
- Updated: 2026-10-15T23:48:24+00:00
- Source review period: 2026-10-14
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Carbon-13 nuclear magnetic resonance measurements showed accelerated mineralization, with nanosheets eliminating the induction period before mineral formation. The assemblies displayed thermal and chemical stability. This is materials and catalysis research; the source reports no commercial capture plant, emissions-removal volume or industrial cost.

## Data

### Source report

Methodology: The date identifies publication of the source report, not the exact day of the experiment.

| date | label | description | status |
|---|---|---|---|
| 2026-10-14 | PNNL develops metal-free peptoid assemblies for carbon mineralization | PNNL reported on October 14 on crystalline peptoid nanosheets and nanotubes that mimic enzymes without metal cofactors. Histidine-inspired catalytic groups promoted conversion of carbon dioxide into bicarbonate and carbonate-mineral formation in the presence of calcium. | occurred |

Sources: <https://www.pnnl.gov/publications/peptoid-nanomaterials-promote-carbon-dioxide-dissolution-and-precipitation> · Download data: [JSON](https://newsverum.com/api/v1/articles/pnnl-metal-free-peptoid-nanomaterials-carbon-mineralization-2026/data/source-report?lang=en&format=json) · [CSV](https://newsverum.com/api/v1/articles/pnnl-metal-free-peptoid-nanomaterials-carbon-mineralization-2026/data/source-report?lang=en&format=csv)

## Sources

- [Pacific Northwest National Laboratory](<https://www.pnnl.gov/publications/peptoid-nanomaterials-promote-carbon-dioxide-dissolution-and-precipitation>) (Source checked: 2026-10-15; Published: 2026-10-14)

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