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Impact of iron-based nanoparticles on microbial denitrification by Paracoccus sp. strain YF1.
Aquat Toxicol. 2013 Oct 15; 142-143:329-35.AT

Abstract

This study investigates the effects of Fe and Fe/Ni nanoparticles on biological denitrification when using Paracoccus sp. strain YF1. Results show that adding Fe and Fe/Ni nanoparticles to the cells decreased their growth and denitrification rate. Compared to that of free cells (control 89.47%), a decrease (64.33%) in the presence of 1000 mg/L Fe/Ni nanoparticles was observed, while a small decline in the denitrification rate (76.36%) was obtained when the concentration of Fe nanoparticles was 1000 mg/L. These were further confirmed by adding Fe(2+), Fe(3+), Fe3O4, Fe(2+)/Ni(2+) and Fe(3+)/Ni(2+) individually to the free cell system. Furthermore, Fe and Fe/Ni nanoparticles influenced the nitrate removal and bacterial growth under different pH and temperature conditions. SEM, XRD and EDS demonstrated that iron oxides formed as a result of nanoparticles corrosion in biological medium. Finally the presence of nanoparticles around some bacteria was observed.

Authors+Show Affiliations

School of Life Science, Fujian Normal University, Fuzhou 350108, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24090609

Citation

Jiang, Chenghong, et al. "Impact of Iron-based Nanoparticles On Microbial Denitrification By Paracoccus Sp. Strain YF1." Aquatic Toxicology (Amsterdam, Netherlands), vol. 142-143, 2013, pp. 329-35.
Jiang C, Liu Y, Chen Z, et al. Impact of iron-based nanoparticles on microbial denitrification by Paracoccus sp. strain YF1. Aquat Toxicol. 2013;142-143:329-35.
Jiang, C., Liu, Y., Chen, Z., Megharaj, M., & Naidu, R. (2013). Impact of iron-based nanoparticles on microbial denitrification by Paracoccus sp. strain YF1. Aquatic Toxicology (Amsterdam, Netherlands), 142-143, 329-35. https://doi.org/10.1016/j.aquatox.2013.09.005
Jiang C, et al. Impact of Iron-based Nanoparticles On Microbial Denitrification By Paracoccus Sp. Strain YF1. Aquat Toxicol. 2013 Oct 15;142-143:329-35. PubMed PMID: 24090609.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of iron-based nanoparticles on microbial denitrification by Paracoccus sp. strain YF1. AU - Jiang,Chenghong, AU - Liu,Yan, AU - Chen,Zuliang, AU - Megharaj,Mallavarapu, AU - Naidu,Ravendra, Y1 - 2013/09/16/ PY - 2013/04/16/received PY - 2013/09/02/revised PY - 2013/09/05/accepted PY - 2013/10/5/entrez PY - 2013/10/5/pubmed PY - 2014/3/22/medline KW - Cell growth KW - Denitrification KW - Nanoparticles KW - Paracoccus sp. YF1 SP - 329 EP - 35 JF - Aquatic toxicology (Amsterdam, Netherlands) JO - Aquat. Toxicol. VL - 142-143 N2 - This study investigates the effects of Fe and Fe/Ni nanoparticles on biological denitrification when using Paracoccus sp. strain YF1. Results show that adding Fe and Fe/Ni nanoparticles to the cells decreased their growth and denitrification rate. Compared to that of free cells (control 89.47%), a decrease (64.33%) in the presence of 1000 mg/L Fe/Ni nanoparticles was observed, while a small decline in the denitrification rate (76.36%) was obtained when the concentration of Fe nanoparticles was 1000 mg/L. These were further confirmed by adding Fe(2+), Fe(3+), Fe3O4, Fe(2+)/Ni(2+) and Fe(3+)/Ni(2+) individually to the free cell system. Furthermore, Fe and Fe/Ni nanoparticles influenced the nitrate removal and bacterial growth under different pH and temperature conditions. SEM, XRD and EDS demonstrated that iron oxides formed as a result of nanoparticles corrosion in biological medium. Finally the presence of nanoparticles around some bacteria was observed. SN - 1879-1514 UR - https://www.unboundmedicine.com/medline/citation/24090609/Impact_of_iron_based_nanoparticles_on_microbial_denitrification_by_Paracoccus_sp__strain_YF1_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0166-445X(13)00232-4 DB - PRIME DP - Unbound Medicine ER -