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Bacterial toxicity of exfoliated black phosphorus nanosheets
Xiong, Zhiqiang1; Zhang, Xuejiao2; Zhang, Siyu2; Lei, Lei2,4; Ma, Wei2,4; Li, Dengyu2,4; Wang, Weidong1; Zhao, Qing2; Xing, Baoshan3
Corresponding AuthorWang, Weidong(wwdcyy@126.com) ; Zhao, Qing(zhaoqing@iae.ac.cn)
2018-10-15
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
Volume161Pages:507-514
AbstractNewly emerged two-dimensional material, black phosphorus (BP) shows promising applications in many fields owing to its superior properties. Despite the biological effects of BP were studied, its environmental impacts have not yet received enough attention. In this study, the bacterial toxicity of exfoliated BP nanosheets was for the first time evaluated against two model bacteria strains, Gram-negative Escherichia coli (E. coli) and Gram-positive Bacillus subtilis (B. subtilis). By monitoring the bacterial growth curve and colony counting, the bacterial toxicity of BP nanosheets was examined. Higher toxicity was induced for Gram-negative E. coli compared to Gram-positive B. subtilis after 6 h treatment, which was reversed at 12 h due to membrane self-healing of E. coli. The bacterial toxicity followed a time- and concentration-dependent fashion, with a maximum bactericidal efficiency of 91.65% and 99.69% for E. coli and B. subtilis, respectively, after 12 h exposure. Reactive oxygen species (ROS)dependent oxidative stress and membrane damage were the main bactericidal mechanisms as proved by fluorescence microscopy, flow cytometry, scanning electron microscopy (SEM), and Lactate dehydrogenase (LDH) assay. This study indicates the potential environmental risk of BP nanosheets and the data from this work will guide their safety applications in the future. 1.
KeywordBlack Phosphorus Bacterial toxicity ROS Membrane damage
Funding OrganizationFund of Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region ; Program of Science and Technology Innovation Team in Heilongjiang Province ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; Youth Innovation Promotion Association CAS ; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE) ; Program of local Science and Technology Development - Central Government ; Chinese Academy of Sciences
DOI10.1016/j.ecoenv.2018.06.008
Indexed BySCI
Language英语
Funding ProjectFund of Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region[201703] ; Program of Science and Technology Innovation Team in Heilongjiang Province[2012TD006] ; National Natural Science Foundation of China[41603120] ; National Natural Science Foundation of China[41703107] ; National Natural Science Foundation of China[21671115] ; National Key Research and Development Program of China[2016YFD0800300] ; Youth Innovation Promotion Association CAS ; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE) ; Program of local Science and Technology Development - Central Government[ZY16A06-02] ; Chinese Academy of Sciences
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS SubjectEnvironmental Sciences ; Toxicology
WOS IDWOS:000439956700061
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128864
Collection中国科学院金属研究所
Corresponding AuthorWang, Weidong; Zhao, Qing
Affiliation1.Heilongjiang Bayi Agr Univ, Coll Life Sci & Technol, Heilongjiang Prov Key Lab Environm Microbiol & Re, Daqing 163319, Peoples R China
2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang, Liaoning, Peoples R China
3.Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA
4.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xiong, Zhiqiang,Zhang, Xuejiao,Zhang, Siyu,et al. Bacterial toxicity of exfoliated black phosphorus nanosheets[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,161:507-514.
APA Xiong, Zhiqiang.,Zhang, Xuejiao.,Zhang, Siyu.,Lei, Lei.,Ma, Wei.,...&Xing, Baoshan.(2018).Bacterial toxicity of exfoliated black phosphorus nanosheets.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,161,507-514.
MLA Xiong, Zhiqiang,et al."Bacterial toxicity of exfoliated black phosphorus nanosheets".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 161(2018):507-514.
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