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Surface plasmon resonance-enabled antibacterial digital versatile discs
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View: Figures


Image of FIG. 1.
FIG. 1.

Top-view SEM image of the King Kong (2005) movie DVD. Inset showing a magnified side-view SEM image of the same DVD.

Image of FIG. 2.
FIG. 2.

(a) Normal incidence optical reflection spectrum obtained from the DVD in air. (b) FDTD-simulated normal incidence optical reflection spectrum from a DVD in air.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Fluorescence microscope image of a GFP-tagged E. coli-covered DVD piece with two spots illuminated with 48 mW laser for 1 min each. (b) Three overlapped fluorescence microscope images showing spots illuminated with 75% and 50% of laser power (48 mW), respectively, for various durations.

Image of FIG. 4.
FIG. 4.

(Color online) Photographs of bacterial cultures and the counts of colony forming units (×500) of E. coli on 3 DVD samples and a flat aluminum film which are illuminated with 48 mW laser. The overall residential time of the scanning laser spot on any specific area of these samples is less than 1 s.

Image of FIG. 5.
FIG. 5.

(Color online) (a) Simulated temperature distribution on a 2 mm diameter DVD piece illuminated with laser (spot diameter 400 μm). (b) Simulated maximum temperature on a 2 mm diameter DVD piece illuminated at different laser power levels.


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Scitation: Surface plasmon resonance-enabled antibacterial digital versatile discs