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Growth Mechanism of Amorphous Selenium Nanoparticles Synthesized by Shewanella sp. HN-41
Abstract
Shewanella sp. HN-41 was exploited for selenium nanoparticles synthesis from aqueous selenite compounds under anaerobic conditions. Various reaction conditions, including reaction time, initial biomass, and initial selenite concentration, were systematically investigated to determine their effects on particle size distribution and formation rate. The biomass concentration of Shewanella sp. HN-41 had no significant effect on average particle size but strongly influenced reduction rate and size distribution. Initial selenite concentration (0.01-1.0 mM) also had no significant effect on the average particle size, but affected the early growth stage mechanism of selenium particle production, which was modeled using a Michaelis Menten model. The HR-TEM and SAED patterns indicated that the synthesized selenium nanoparticles were amorphous.
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Soil bacteria can form (nano)-sized Se(0) from selenate and selenite.
“A number of studies have reported that soil bacteria can form (nano)-sized Se(0) from selenate and selenite [125,126,127,128,129]”
From Selenium Cycling Across Soil-Plant-Atmosphere Interfaces: A Critical Review (2015) · cites this paper as [128]
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Research works printed but not linked: 1
- 25) Bailey JE and Ollis DF, “Biochemical Engineering Fundamentals” 2nd ed., McGraw-Hill Science/Engineering/Math, New York (1986).
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Selenium Cycling Across Soil-Plant-Atmosphere Interfaces: A Critical Review
Winkel, L., Vriens, B., Jones, G., Schneider, L., Pilon-Smits, E., & Bañuelos, G. (2015) · Nutrients · doi:10.3390/nu7064199 · Cited by 476
Metadata
- Authors
- TAM, K., HO, C. T., LEE, J.-H., LAI, M., CHANG, C. H., RHEEM, Y., CHEN, W., HUR, H.-G., & MYUNG, N. V.
- Affiliations
- University of California, Riverside (US)
- Gwangju Institute of Science and Technology (KR)
- Nanjing University of Information Science and Technology (CN)
- Venue
- Bioscience, Biotechnology, and Biochemistry
- Publisher
- Oxford University Press (OUP)
- Published
- 2010-04-23
- Volume
- 74
- Issue
- 4
- Pages
- 696-700
- ISSN
- 0916-8451 (ISSN-L)
- 1347-6947
- OpenAlex
- W1981122965
- Cited by
- 96
- References
- 0
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 5 · 2023: 6 · 2022: 7 · 2021: 12 · 2020: 5 · 2019: 14 · 2018: 3 · 2017: 5 · 2016: 9 · 2015: 10 · 2014: 8 · 2012: 6
- FWCI
- 1.41
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioscience Biotechnology and Biochemistry (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Nanoparticles: synthesis and applications
- Physical Sciences › Environmental Science › Environmental Chemistry › Mine drainage and remediation techniques
- Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
- Keywords
- selenium nanoparticles, amorphous selenium, bacterial biosynthesis, selenite reduction, anaerobic conditions, particle size distribution, growth mechanism, Michaelis-Menten kinetics, reduction rate
- MeSH terms
- Particle Size, Selenium, Water, Sodium Selenite, Shewanella, Nanoparticles
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