Biogenic formation of photoactive arsenic-sulfide nanotubes by Shewanella sp. strain HN-41 Export

@article{citeulike:2077394, abstract = {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 (20100 nm in diameter by {approx}30 {micro}m 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[IMG]f1.gif" ALT="Formula" BORDER="0">, 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. 10.1073/pnas.0707595104}, author = {Lee, Ji-Hoon and Kim, Min-Gyu and Yoo, Bongyoung and Myung, Nosang V. and Maeng, Jongsun and Lee, Takhee and Dohnalkova, Alice C. and Fredrickson, James K. and Sadowsky, Michael J. and Hur, Hor-Gil}, citeulike-article-id = {2077394}, citeulike-linkout-0 = {http://dx.doi.org/10.1073/pnas.0707595104}, day = {7}, doi = {10.1073/pnas.0707595104}, journal = {Proceedings of the National Academy of Sciences}, keywords = {arsenic, bacteria, metal, nanotube, photoactive, sulfide}, month = {December}, pages = {0707595104+}, posted-at = {2007-12-08 19:32:13}, priority = {2}, title = {Biogenic formation of photoactive arsenic-sulfide nanotubes by Shewanella sp. strain HN-41}, url = {http://dx.doi.org/10.1073/pnas.0707595104}, year = {2007} }

TY - JOUR ID - citeulike:2077394 L3 - citeulike-article-id:2077394 N2 - 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 (20100 nm in diameter by {approx}30 {micro}m 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[IMG]f1.gif" ALT="Formula" BORDER="0">, 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. 10.1073/pnas.0707595104 JF - Proceedings of the National Academy of Sciences TI - Biogenic formation of photoactive arsenic-sulfide nanotubes by Shewanella sp. strain HN-41 SP - 0707595104 KW - arsenic KW - bacteria KW - metal KW - nanotube KW - photoactive KW - sulfide AU - Lee, Ji-Hoon AU - Kim, Min-Gyu AU - Yoo, Bongyoung AU - Myung, Nosang AU - Maeng, Jongsun AU - Lee, Takhee AU - Dohnalkova, Alice AU - Fredrickson, James AU - Sadowsky, Michael AU - Hur, Hor-Gil PY - 2007/12/07/ UR - http://dx.doi.org/10.1073/pnas.0707595104 ER -