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Adhesion of E. coli to silver- or copper-coated porous clay ceramic surfaces
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10.1063/1.4722326
/content/aip/journal/jap/111/12/10.1063/1.4722326
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/12/10.1063/1.4722326

Figures

Image of FIG. 1.
FIG. 1.

Schematic of a typical cantilever deflection-displacement plot with highlights of the various stages (A-E) of the AFM tip as it is brought into and out of sample at a fixed point (adapted from Shahin et al., 2005).

Image of FIG. 2.
FIG. 2.

Schematic illustration of adhesion between coated AFM tips and surfaces relevant to ceramic water filter.

Image of FIG. 3.
FIG. 3.

ESEM images and EDX spectrum of (a) uncoated tip, (b) copper coated tip, (c) silver coated tip, (d) colloidal silver coated tip, and (e) ceramic coated tip.

Image of FIG. 4.
FIG. 4.

Measurement of AFM tips radii using ESEM micrograph (scale bar of inserted figure is 100 nm). The metallic silver coated AFM tip shown has a tip radius of ∼87 nm.

Image of FIG. 5.
FIG. 5.

Sample of 5 µm AFM tapping mode image of (a) porous clay ceramic and (b) E. coli surfaces.

Image of FIG. 6.
FIG. 6.

Typical AFM force-displacement characteristics for copper coated tip and (a) porous ceramics and (b) E. coli bacteria.

Image of FIG. 7.
FIG. 7.

Comparison of adhesion force obtained for (a) E. coli interactions and (b) porous ceramics interactions.

Image of FIG. 8.
FIG. 8.

Adhesion energies obtained for (a) E. coli interactions and (b) porous clay ceramic interactions.

Tables

Generic image for table
Table I.

Average rms roughness values.

Generic image for table
Table II.

Spring constants of the bare and coated AFM tips.

Generic image for table
Table III.

Adhesion force between coated AFM tips and substrate for (a) E. coli bacteria interactions and (b) ceramic interactions.

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/content/aip/journal/jap/111/12/10.1063/1.4722326
2012-06-26
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Adhesion of E. coli to silver- or copper-coated porous clay ceramic surfaces
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/12/10.1063/1.4722326
10.1063/1.4722326
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