An Improved Selective Medium, EPGS Agar, for Isolating Staphylococcus aureus

Tokoro, Mitsuo; Nagano, Isao; Goto, Kiichi; Watanabe, Minoru

doi:10.11150/kansenshogakuzasshi1970.61.1376

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The contact time of the stamper on the film was approximately three seconds. Three types of stampers were used: plate count agar (PCA) made of standard agar medium, mannitol salt with egg yolk agar (MSEY)[ 21 ], and Escherichia coli (ES) Colimark agar (ESCM) containing sodium lauryl sulfate[ 22 ] (Eiken Chemical Co. Ltd., Japan).…”

Section: Methodsmentioning

confidence: 99%

Antibacterial effects of nano-imprinted moth-eye film in practical settings

et al. 2018

View full text Add to dashboard Cite

BackgroundRecent studies report that surfaces displaying micrometer- or nanometer-sized undulating structures exhibit antibacterial effects. In previous work, we described the use of an advanced nanofabrication technique to generate an artificial biomimetic Moth-eye film by coating a polyethylene terephthalate (PET) film with nanoscale moth-eye protrusions made from a hydrophilic resin. This moth-eye film exhibited enhanced antibacterial effects in in vitro experiments. The aim of the present study was to verify the antibacterial efficacy of the Moth-eye film in practical environments.Materials and methodsThe antibacterial effects of three types of film (Moth-eye film, Flat film, and PET film) were compared. Sample films were pasted onto hand washing basins at the testing locations. After several hours, bacteria were collected from the surface of the sample films with one of three kinds of culture media stamper (to permit identification of bacterial species). The stampers were incubated for 48 hours at 35°C, and the numbers of colonies were counted.Results and discussionThe number of common bacteria including E. coli and S. aureus obtained from the Moth-eye film was significantly lower than those from the PET film (p<0.05) and Flat film at 1 hour (p<0.05). This study found that the Moth-eye film showed a long-term (6h) antibacterial effect and the Moth-eye structure (PET coated with nanoscale cone-shaped pillars) demonstrated a physical antibacterial effect from earlier time points. Therefore, the Moth-eye film appears to have potential general-purpose applications in practical environments.

show abstract

Section: Methodsmentioning

confidence: 99%