Fe2+ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution

Yang, Yuran; Zhang, Can; Li, Kaili; Li, Zhenlun

doi:10.3390/microorganisms9112189

Submit to this Journal Review for this Journal Edit a Special Issue

Article Menu

...

Open AccessArticle

Fe²⁺ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution

¹,

¹,

² and

^1,*

Chongqing Key Laboratory of Soil Multiscale Interfacial Process, College of Resources and Environment, Southwest University, Chongqing 400716, China

School of Chemical Engineering, University of Queensland, Brisbane, QLD 4072, Australia

Author to whom correspondence should be addressed.

Academic Editor: James S. Maki

Microorganisms 2021, 9(11), 2189; https://doi.org/10.3390/microorganisms9112189

Received: 30 July 2021 / Revised: 26 September 2021 / Accepted: 11 October 2021 / Published: 20 October 2021

(This article belongs to the Topic Anaerobic Digestion Processes)

View Full-Text Download PDF

Browse Figures

Citation Export

Abstract

The negative effect of ZnO nanoparticles (ZnO-NPs) on the biological removal of nitrate (NO₃⁻) has received extensive attention, but the underlying mechanism is controversial. Additionally, there is no research on Fe²⁺ used to alleviate the cytotoxicity of NPs. In this paper, the effects of different doses of ZnO-NPs on the growth and NO₃⁻ removal of Pseudomonas tolaasii Y-11 were studied with or without Fe²⁺. The results showed that ZnO-NPs had a dose-dependent inhibition on the growth and NO₃⁻ removal of Pseudomonas tolaasii Y-11 and achieved cytotoxic effects through both the NPs themselves and the released Zn²⁺. The addition of Fe²⁺ changed the behavior of ZnO-NPs in an aqueous solution (inhibiting the release of toxic Zn²⁺ and promoting the aggregation of ZnO-NPs), thereby alleviating the poisonous effect of ZnO-NPs on the growth and nitrogen removal of P. tolaasii Y-11. This study provides a theoretical method for exploring the mitigation of the acute toxicity of ZnO-NPs to denitrifying microorganisms. View Full-Text

Keywords: Pseudomonas tolaasii; Ferrous iron; ZnO-NPs; detoxification; aerobic denitrification; magnesium

▼ Show Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Supplementary Material

Supplementary File 1:
ZIP-Document (ZIP, 529 KiB)

Share and Cite

MDPI and ACS Style

Yang, Y.; Zhang, C.; Li, K.; Li, Z. Fe²⁺ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution. Microorganisms 2021, 9, 2189. https://doi.org/10.3390/microorganisms9112189

AMA Style

Yang Y, Zhang C, Li K, Li Z. Fe²⁺ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution. Microorganisms. 2021; 9(11):2189. https://doi.org/10.3390/microorganisms9112189

Chicago/Turabian Style

Yang, Yuran, Can Zhang, Kaili Li, and Zhenlun Li. 2021. "Fe²⁺ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution" Microorganisms 9, no. 11: 2189. https://doi.org/10.3390/microorganisms9112189

Find Other Styles

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Abstract views Pdf views Html views

Article Menu

Fe²⁺ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution

Abstract

Supplementary Material

Share and Cite

Article Metrics

Article Access Statistics

Article Access Map by Country/Region

Further Information

Guidelines

MDPI Initiatives

Follow MDPI