Biomedical Engineering Reference
In-Depth Information
( a )
( b )
( c )
( d )
Figure 8.6 SEM images of selenium-coated polycarbonate samples before and
after a tape test. (a) 0.5M NaOH, coating for 30 seconds and before a tape test.
(b) 0.5M NaOH, coating for 30 seconds and after a tape test. (c) 1.0M NaOH,
coating for 60 seconds and before a tape test. (d) 1.0M NaOH, coating for
60 seconds and after a tape test. The coverage of selenium nanoparticles on the
surface for image (a), (b), (c), (d) was 11.74%, 6.94%, 11.38%, 5.88% respectively.
See [71] for more details.
16000
24 Hours
48 Hours
72 Hours
14000
12000
10000
8000
6000
4000
2000
0
Control
0.5M, 30s, bf
0.5M, 30s, aft
1.0M, 1min, bf
1.0M, 1min, aft
Figure 8.7 Bacteria ( Staphylococcus aureus ) growth on the surface of
polycarbonate. Polycarbonate samples were treated with bacteria ( Staphylococcus
aureus ) in 0.03% TSB (Tryptic Soy Broth) and were incubated for 24, 48 or
72 hours. The media was changed with 0.03% TSB every 24 hours for
those samples incubated for 48 or 72 hours. The control group is uncoated
polycarbonate. bf
=
before tape test; aft
=
after tape test. Data
=
Mean
±
standard
deviation by mean, n
=
3; See [71] for more details.
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