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Antibacterial behavior of diamond nanoparticles against Escherichia coli
Author(s) -
Beranová Jana,
Seydlová Gabriela,
Kozak Halyna,
Potocký Štěpán,
Konopásek Ivo,
Kromka Alexander
Publication year - 2012
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201200079
Subject(s) - escherichia coli , diamond , bacteria , nutrient agar , antibacterial activity , bacterial growth , agar , nanoparticle , nanocrystalline material , microbiology and biotechnology , materials science , chemistry , nanotechnology , biology , biochemistry , metallurgy , gene , genetics
Abstract In this study, we investigated the potential antibacterial properties of nanocrystalline diamond. In particular, we tested the effect of diamond nanoparticles (DNPs) on growth of the model gram‐negative bacterium Escherichia coli on solid, nutrient‐rich growth medium. We found that the presence of DNPs on agar plates significantly reduced the colony forming ability of E. coli . The antibacterial effect occurred in a concentration dependent manner and was conditional on the specific ratio of DNPs to the number of bacterial cells.