DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria

Silver (Ag) nanoparticles were produced using DNA extracted from salmon milt as templates. Particles spherical in shape with an average diameter smaller than 10 nm were obtained. The nanoparticles consisted of Ag as the core with an outermost thin layer of DNA. The DNA/Ag hybrid nanoparticles were i...

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Main Authors: Tomomi Takeshima, Yuya Tada, Norihito Sakaguchi, Fumio Watari, Bunshi Fugetsu
Format: Article
Language:English
Published: MDPI AG 2015-03-01
Series:Nanomaterials
Subjects:
Online Access:http://www.mdpi.com/2079-4991/5/1/284
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author Tomomi Takeshima
Yuya Tada
Norihito Sakaguchi
Fumio Watari
Bunshi Fugetsu
author_facet Tomomi Takeshima
Yuya Tada
Norihito Sakaguchi
Fumio Watari
Bunshi Fugetsu
author_sort Tomomi Takeshima
collection DOAJ
description Silver (Ag) nanoparticles were produced using DNA extracted from salmon milt as templates. Particles spherical in shape with an average diameter smaller than 10 nm were obtained. The nanoparticles consisted of Ag as the core with an outermost thin layer of DNA. The DNA/Ag hybrid nanoparticles were immobilized over the surface of cotton based fabrics and their antibacterial efficiency was evaluated using E. coli as the typical Gram-negative bacteria. The antibacterial experiments were performed according to the Antibacterial Standard of Japanese Association for the Functional Evaluation of Textiles. The fabrics modified with DNA/Ag nanoparticles showed a high enough inhibitory and killing efficiency against E. coli at a concentration of Ag ≥ 10 ppm.
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spelling doaj.art-92f227198e8c4de3a20b76efd45f32962022-12-21T17:34:36ZengMDPI AGNanomaterials2079-49912015-03-015128429710.3390/nano5010284nano5010284DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative BacteriaTomomi Takeshima0Yuya Tada1Norihito Sakaguchi2Fumio Watari3Bunshi Fugetsu4Graduate School of Environmental Science, Hokkaido University, Hokkaido 060-0810, JapanNissei Bio Co. Ltd., Hokkaido 061-1374, JapanDivision of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628, JapanGraduate School of Dental Medicine, Hokkaido University, Hokkaido 060-8586, JapanGraduate School of Environmental Science, Hokkaido University, Hokkaido 060-0810, JapanSilver (Ag) nanoparticles were produced using DNA extracted from salmon milt as templates. Particles spherical in shape with an average diameter smaller than 10 nm were obtained. The nanoparticles consisted of Ag as the core with an outermost thin layer of DNA. The DNA/Ag hybrid nanoparticles were immobilized over the surface of cotton based fabrics and their antibacterial efficiency was evaluated using E. coli as the typical Gram-negative bacteria. The antibacterial experiments were performed according to the Antibacterial Standard of Japanese Association for the Functional Evaluation of Textiles. The fabrics modified with DNA/Ag nanoparticles showed a high enough inhibitory and killing efficiency against E. coli at a concentration of Ag ≥ 10 ppm.http://www.mdpi.com/2079-4991/5/1/284antibacterialDNA/Ag nanoparticleselectrostatic interactionGram-negative bacteriananoparticle immobilizationsalmon milt DNA
spellingShingle Tomomi Takeshima
Yuya Tada
Norihito Sakaguchi
Fumio Watari
Bunshi Fugetsu
DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
Nanomaterials
antibacterial
DNA/Ag nanoparticles
electrostatic interaction
Gram-negative bacteria
nanoparticle immobilization
salmon milt DNA
title DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
title_full DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
title_fullStr DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
title_full_unstemmed DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
title_short DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
title_sort dna ag nanoparticles as antibacterial agents against gram negative bacteria
topic antibacterial
DNA/Ag nanoparticles
electrostatic interaction
Gram-negative bacteria
nanoparticle immobilization
salmon milt DNA
url http://www.mdpi.com/2079-4991/5/1/284
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