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Literature DB >> 27388596

Antibacterial and antifouling activities of chitosan/TiO2/Ag NPs nanocomposite films against packaged drinking water bacterial isolates.

Saravanan Natarajan¹, M Bhuvaneshwari¹, D Shanthana Lakshmi², P Mrudula¹, N Chandrasekaran¹, Amitava Mukherjee³.

Abstract

TiO2 and Ag NPs are widely used as antibacterial agents against many bacterial pathogens. Chitosan (polymer) itself acts as a strong antibacterial agent. Hence, chitosan/TiO2/Ag NPs incorporated nanocomposite film was prepared against packed drinking water bacterial strains. A concentration-dependent increase in the reduction of cell viability was observed in all the isolates under UV-C and dark exposure conditions. The bacteria consortium showed greater resistance against antibacterial effects of chitosan/TiO2/Ag nanocomposite as compared to single isolates. Glycocalyx test and mass assessment conclude the effective antibacterial activity by inhibiting bacterial adhesion on the film surface. The release of LDH and generation of ROS act as the predominant antibacterial mechanism induced by TiO2/Ag NPs. Surface characterization of chitosan/TiO2/Ag nanocomposite was studied by FTIR and XRD analyses and SEM analysis after interaction with the bacteria.

Entities: Chemical

Keywords: Antibacterial activity; Chitosan/TiO2/Ag nanocomposite; Consortium; Dark; UV-C

Mesh：

Substances：

Year: 2016 PMID： 27388596 DOI： 10.1007/s11356-016-7102-6

Source DB: PubMed Journal: Environ Sci Pollut Res Int ISSN： 0944-1344 Impact factor: 4.223

24 in total

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Journal: Environ Sci Pollut Res Int Date: 2012-10-03 Impact factor: 4.223

4. Size-dependent proinflammatory effects of ultrafine polystyrene particles: a role for surface area and oxidative stress in the enhanced activity of ultrafines.

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Journal: Toxicol Appl Pharmacol Date: 2001-09-15 Impact factor: 4.219

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Authors: I M Helander; E L Nurmiaho-Lassila; R Ahvenainen; J Rhoades; S Roller
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6. Mechanical and antibacterial properties of novel high performance chitosan/nanocomposite films.

Authors: Ahmed M Youssef; Hussein Abou-Yousef; Samah M El-Sayed; Samir Kamel
Journal: Int J Biol Macromol Date: 2015-02-20 Impact factor: 6.953

7. Cytotoxicity of ZnO NPs towards fresh water algae Scenedesmus obliquus at low exposure concentrations in UV-C, visible and dark conditions.

Authors: M Bhuvaneshwari; V Iswarya; S Archanaa; G M Madhu; G K Suraish Kumar; R Nagarajan; N Chandrasekaran; Amitava Mukherjee
Journal: Aquat Toxicol Date: 2015-03-07 Impact factor: 4.964

8. Electrospun chitosan nanofibers with controlled levels of silver nanoparticles. Preparation, characterization and antibacterial activity.

Authors: Sang Jin Lee; Dong Nyoung Heo; Ji-Hoi Moon; Wan-Kyu Ko; Jung Bok Lee; Min Soo Bae; Se Woong Park; Ji Eun Kim; Dong Hyun Lee; Eun-Cheol Kim; Chang Hoon Lee; Il Keun Kwon
Journal: Carbohydr Polym Date: 2014-04-20 Impact factor: 9.381

Antibacterial and antifouling activities of chitosan/TiO2/Ag NPs nanocomposite films against packaged drinking water bacterial isolates.

1. The bactericidal effect of silver nanoparticles.

2. Preparation and mechanical properties of chitosan/carbon nanotubes composites.

3. In situ photoelectrochemical/photocatalytic study of a dye discoloration in a microreactor system using TiO2 thin films.

4. Size-dependent proinflammatory effects of ultrafine polystyrene particles: a role for surface area and oxidative stress in the enhanced activity of ultrafines.

5. Chitosan disrupts the barrier properties of the outer membrane of gram-negative bacteria.

6. Mechanical and antibacterial properties of novel high performance chitosan/nanocomposite films.

7. Cytotoxicity of ZnO NPs towards fresh water algae Scenedesmus obliquus at low exposure concentrations in UV-C, visible and dark conditions.

8. Electrospun chitosan nanofibers with controlled levels of silver nanoparticles. Preparation, characterization and antibacterial activity.

9. The antibacterial properties of a novel chitosan-Ag-nanoparticle composite.

10. Fecal indicators and bacterial pathogens in bottled water from Dhaka, Bangladesh.

1. Film-forming ability of collagen hydrolysate extracted from leather solid wastes with chitosan.

Review 2. Nanomaterials for alternative antibacterial therapy.