I-TiO2/PVC film with highly photocatalytic antibacterial activity under visible light

被引：32

作者：

Deng, Weihua ^{[1
]}

Ning, Shangbo ^{[1
]}

Lin, Qianying ^{[1
]}

Zhang, Hualei ^{[1
]}

Zhou, Tanghua ^{[1
]}

Lin, Huaxiang ^{[1
]}

Long, Jinlin ^{[1
]}

Lin, Qun ^{[2
]}

Wang, Xuxu ^{[1
]}

机构：

[1] Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China

[2] Fujian Med Univ, Affiliated Hosp 1, Fuzhou 350002, Peoples R China

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2016年 / 144卷

关键词：

Iodine-modified TiO2 film; PVC; Antibacterial activity; Photocatalysis; Biofilm; IODINE-DOPED TIO2; TITANIUM-DIOXIDE; BIOFILM;

D O I：

10.1016/j.colsurfb.2016.03.085

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Iodine-modified TiO2(I-TiO2) film were coated on medical-grade PVC material by impregnation deposition method and subsequently characterized by XRD, SEM, TEM, AFM, DRS and XPS. The photocatalytic anti-bacterial activity of I-TiO2/PVC was investigated both by in vitro anti-bacterial experiments and by clinical study. The results revealed that I-TiO2/PVC exhibit excellent photocatalytic antibacterial activity, which can destroy the propagation of the Escherichia coli and cause the deactivation and death of most E. coli bacteria within 30 min visible light illumination. Clinical study on animals showed that I-TiO2 coated on PVC decrease the formation of biofilm on PVC surface in the mechanical ventilation. Furthermore, I-TiO2/PVC can effectively reduce inflammation of tracheal tissue of bam suckling pig and prevents the occurrence of VAP. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：196 / 202

页数：7

共 28 条

[1] Biofilm formation in Staphylococcus implant infections. A review of molecular mechanisms and implications for biofilm-resistant materials [J].

Arciola, Carla Renata ;

Campoccia, Davide ;

Speziale, Pietro ;

Montanaro, Lucio ;

Costerton, John William .

BIOMATERIALS, 2012, 33 (26) :5967-5982

[2] Inhibition of bacterial adhesion on PVC endotracheal tubes by RF-oxygen glow discharge, sodium hydroxide and silver nitrate treatments [J].

Balazs, DJ ;

Triandafillu, K ;

Wood, P ;

Chevolot, Y ;

van Delden, C ;

Harms, H ;

Hollenstein, C ;

Mathieu, HJ .

BIOMATERIALS, 2004, 25 (11) :2139-2151

[3] Biofilm-dependent airway infections: A role for ambroxol? [J].

Cataldi, M. ;

Sblendorio, V. ;

Leo, A. ;

Piazza, O. .

PULMONARY PHARMACOLOGY & THERAPEUTICS, 2014, 28 (02) :98-108

[4]

Durmus N.G., 2013, MATER RES STAND, V1498, P73, DOI [10.1557/opl.2013.35, DOI 10.1557/OPL.2013.35]

[5]

Geilich B. M., 2013, BIOENG C NEBEC 2013, P7, DOI DOI 10.1109/NEBEC.2013.132

[6] Ag@AgI, Core@Shell Structure in Agarose Matrix as Hybrid: Synthesis, Characterization, and Antimicrobial Activity [J].

Ghosh, Somnath ;

Saraswathi, A. ;

Indi, S. S. ;

Hoti, S. L. ;

Vasan, H. N. .

LANGMUIR, 2012, 28 (22) :8550-8561

[7] Visible-light-activated nanoparticle photocatalyst of iodine-doped titanium dioxide [J].

Hong, XT ;

Wang, ZP ;

Cai, WM ;

Lu, F ;

Zhang, J ;

Yang, YZ ;

Ma, N ;

Liu, YJ .

CHEMISTRY OF MATERIALS, 2005, 17 (06) :1548-1552

[8] Understanding the antimicrobial mechanism of TiO 2 -based nanocomposite films in a pathogenic bacterium [J].

Kubacka A. ;

Diez M.S. ;

Rojo D. ;

Bargiela R. ;

Ciordia S. ;

Zapico I. ;

Albar J.P. ;

Barbas C. ;

Martins Dos Santos V.A.P. ;

Fernández-García M. ;

Ferrer M. .

Scientific Reports, 4 (1)

[9] Designing materials for biology and medicine [J].

Langer, R ;

Tirrell, DA .

NATURE, 2004, 428 (6982) :487-492

[10] Generation of oxygen vacancies in visible light activated one-dimensional iodine TiO2 photocatalysts [J].

Li, Wenjuan ;

Liang, Robert ;

Hu, Anming ;

Huang, Zhaohui ;

Zhou, Y. Norman .

RSC ADVANCES, 2014, 4 (70) :36959-36966

← 1 2 3 →