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单壁碳纳米管涂层表面细菌黏附及生物膜形成的定量评估

Quantitative evaluation of bacteria adherent and in biofilm on single-wall carbon nanotube-coated surfaces.

作者信息

Pantanella Fabrizio, Berlutti Francesca, Passeri Daniele, Sordi Daniela, Frioni Alessandra, Natalizi Tiziana, Terranova Maria Letizia, Rossi Marco, Valenti Piera

机构信息

Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza-Università di Roma, Piazzale A. Moro 5, 00185 Roma, Italy.

出版信息

Interdiscip Perspect Infect Dis. 2011;2011:291513. doi: 10.1155/2011/291513. Epub 2011 Oct 5.

DOI:10.1155/2011/291513
PMID:22007207
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3189608/
Abstract

Biofilm is a common bacterial lifestyle, and it plays a crucial role in human health, causing biofilm-mediated infections. Recently, to counteract biofilm development, new nano-structured biomaterials have been proposed. However, data about the antibacterial properties of nano-structured surfaces are fragmentary and controversial, and, in particular, the susceptibility of nano-structured materials to colonization and biofilm formation by bacterial pathogens has not been yet thoroughly considered. Here, the ability of the pathogenic Streptococcus mutans and Pseudomonas aeruginosa to adhere and form biofilm on surfaces coated with single-wall carbon nanotubes (SWCNTs) was analyzed. Our results showed that the surfaces of SWCNTs-coated glass beads (SWCNTs-GBs) were colonized at the same extent of uncoated GBs both by S. mutans and P. aeruginosa. In conclusion, our results demonstrate that single wall SWCNTs-coated surfaces are not suitable to counteract bacterial adhesion and biofilm development.

摘要

生物膜是细菌常见的生存方式，它在人类健康中起着关键作用，会引发生物膜介导的感染。近来，为了对抗生物膜的形成，人们提出了新型纳米结构生物材料。然而，关于纳米结构表面抗菌特性的数据并不完整且存在争议，特别是纳米结构材料对细菌病原体定殖和生物膜形成的敏感性尚未得到充分考虑。在此，分析了致病性变形链球菌和铜绿假单胞菌在单壁碳纳米管（SWCNTs）涂层表面上粘附和形成生物膜的能力。我们的结果表明，变形链球菌和铜绿假单胞菌在SWCNTs涂层玻璃珠（SWCNTs-GBs）表面的定殖程度与未涂层玻璃珠相同。总之，我们的结果表明单壁SWCNTs涂层表面不适用于对抗细菌粘附和生物膜形成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/08a37db41454/IPID2011-291513.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/51eb7200f545/IPID2011-291513.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/5528e4d47379/IPID2011-291513.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/d73bee0de1b0/IPID2011-291513.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/6f5f485b330e/IPID2011-291513.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/08a37db41454/IPID2011-291513.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/51eb7200f545/IPID2011-291513.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/5528e4d47379/IPID2011-291513.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/d73bee0de1b0/IPID2011-291513.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/6f5f485b330e/IPID2011-291513.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0daa/3189608/08a37db41454/IPID2011-291513.005.jpg

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Antibacterial activity of electrospun polymer mats with incorporated narrow diameter single-walled carbon nanotubes.含嵌入型小直径单壁碳纳米管的静电纺聚合物垫的抗菌活性。
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Streptococcus mutans and Streptococcus sobrinus are able to adhere and invade human gingival fibroblast cell line.变形链球菌和远缘链球菌能够黏附和侵袭人牙龈成纤维细胞系。
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