Subtle Variations in Surface Properties of Black Silicon Surfaces Influence the Degree of Bactericidal Efficiency

被引：80

作者：

Bhadra, Chris M. ^{[1
]}

Werner, Marco ^{[2
]}

Baulin, Vladimir A. ^{[2
]}

Vi Khanh Truong ^{[1
]}

Al Kobaisi, Mohammad ^{[1
]}

Song Ha Nguyen ^{[1
]}

Balcytis, Armandas ^{[1
,3
]}

Juodkazis, Saulius ^{[1
,3
]}

Wang, James Y. ^{[1
]}

Mainwaring, David E. ^{[1
]}

Crawford, Russell J. ^{[4
]}

Ivanova, Elena P. ^{[1
]}

机构：

[1] Swinburne Univ Technol, Fac Sci Engn & Technol, Sch Sci, Hawthorn, Vic 3122, Australia

[2] Univ Rovira & Virgili, Dept Engn Quim, Avinguda Paisos Catalan 26, E-43007 Tarragona, Spain

[3] Melbourne Ctr Nanofabricat, 151 Wellington Rd, Clayton, Vic 3168, Australia

[4] RMIT Univ, Sch Sci, Melbourne, Vic 3001, Australia

来源：

NANO-MICRO LETTERS | 2018年 / 10卷 / 02期

关键词：

Black silicon; Nanoarchitecture; Bactericidal efficiency; Deep reactive ion etching (DRIE); Neural network analysis; ARRAYS;

D O I：

10.1007/s40820-017-0186-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

One of the major challenges faced by the biomedical industry is the development of robust synthetic surfaces that can resist bacterial colonization. Much inspiration has been drawn recently from naturally occurring mechano-bactericidal surfaces such as the wings of cicada (Psaltoda claripennis) and dragonfly (Diplacodes bipunctata) species in fabricating their synthetic analogs. However, the bactericidal activity of nanostructured surfaces is observed in a particular range of parameters reflecting the geometry of nanostructures and surface wettability. Here, several of the nanometer-scale characteristics of black silicon (bSi) surfaces including the density and height of the nanopillars that have the potential to influence the bactericidal efficiency of these nanostructured surfaces have been investigated. The results provide important evidence that minor variations in the nanoarchitecture of substrata can substantially alter their performance as bactericidal surfaces. [GRAPHICS]

引用

页数：8

共 29 条

[1] Antibacterial titanium nano-patterned arrays inspired by dragonfly wings [J].