Volume 16, Issue 34 2001440
Full Paper

Antibacterial Activity of Graphdiyne and Graphdiyne Oxide

Zhiling Zhu

Corresponding Author

Zhiling Zhu

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

E-mail: [email protected], [email protected]

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Qiang Bai

Qiang Bai

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Shuo Li

Shuo Li

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Siheng Li

Siheng Li

Department of Chemistry, University of Houston, Houston, TX, 77204 USA

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Manhong Liu

Manhong Liu

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Fanglin Du

Fanglin Du

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Ning Sui

Corresponding Author

Ning Sui

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

E-mail: [email protected], [email protected]

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William W. Yu

William W. Yu

College of Materials Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

Department of Chemistry and Physics, Louisiana State University, Shreveport, LA, 71115 USA

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First published: 26 July 2020
Citations: 98

Abstract

From manufacture to disposal, the interaction of graphdiyne based nanomaterials with living organisms is inevitable and crucial. However, the cytotoxic properties of this novel carbon nanomaterial are rarely investigated, and the mechanisms behind their cytotoxicity are totally unknown. In this study, the antibacterial activity of graphdiyne (GDY) and graphdiyne oxide (GDYO) is reported. GDY is capable of inhibiting broad-spectrum bacterial growth while exerting moderate cytotoxicity on mammalian cells. In comparison, GDYO exhibits lower antibacterial activity than that of GDY. Then an alterable, synergetic antibacterial mechanism of GDY, involving wrapping bacterial membrane, membrane insertion and disruption, and reactive oxygen species generation is demonstrated, while the differential gene expression analysis indicates that GDY could only alter the bacterial metabolism slightly and the oxidative stress route may be a minor bactericidal factor. The investigation of the antibacterial behaviors of GDY based nanomaterials may provide useful guidelines for the future design and application of this novel molecular allotrope of carbon.

Conflict of Interest

The authors declare no conflict of interest.

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