Biogenic formation of photoactive arsenic-sulfide nanotubes by Shewanella sp. strain HN-41
Journal Article
·
· Proceedings of the National Academy of Sciences of the United States of America, 104(51):20410-20415
Microorganisms facilitate the formation of a wide range of minerals that have unique physical and chemical properties as well as morphologies that are not produced by abiotic processes. Here, we report the production of an extensive extracellular network of filamentous, arsenic-sulfide (As-S) nanotubes (20–100 nm in diameter by 30 µm in length) by the dissimilatory metal-reducing bacterium Shewanella sp. HN-41. The As-S nanotubes, formed via the reduction of As(V) and S2O, were initially amorphous As2S3 but evolved with increasing incubation time toward polycrystalline phases of the chalcogenide minerals realgar (AsS) and duranusite (As4S). Upon maturation, the As-S nanotubes behaved as metals and semiconductors in terms of their electrical and photoconductive properties, respectively. The As-S nanotubes produced by Shewanella may provide useful materials for novel nano- and opto-electronic devices.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 923683
- Report Number(s):
- PNNL-SA-58352; 26711; KP1501021
- Journal Information:
- Proceedings of the National Academy of Sciences of the United States of America, 104(51):20410-20415, Journal Name: Proceedings of the National Academy of Sciences of the United States of America, 104(51):20410-20415 Journal Issue: 51 Vol. 104; ISSN PNASA6; ISSN 0027-8424
- Country of Publication:
- United States
- Language:
- English
Similar Records
Biogenic Production of Photosensitive Arsenic-Sulfide Nanotubes by Shwanella sp. strain HN-41
Biogenic formation of As-S nanotubes by diverse Shewanella strains
Arsenic mobilization by the dissimilatory Fe(III)-reducing bacterium Shewanella alga BrY
Journal Article
·
Thu Dec 06 23:00:00 EST 2007
· Proceedings of the National Academy of Sciences of the United States of America
·
OSTI ID:951565
Biogenic formation of As-S nanotubes by diverse Shewanella strains
Journal Article
·
Sun Nov 01 00:00:00 EDT 2009
· Applied and Environmental Microbiology, 75(21):6896-6899
·
OSTI ID:973420
Arsenic mobilization by the dissimilatory Fe(III)-reducing bacterium Shewanella alga BrY
Journal Article
·
Sun Feb 28 23:00:00 EST 1999
· Environmental Science and Technology
·
OSTI ID:335322