Biomedical Engineering Reference
In-Depth Information
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FIGURE 5.4
Selected collection schemes for electrospun fi bers (red): (a) single ground, (b) rotating single
ground, (c) dual bar, (d) dual ring, (e) single horizontal ring, (f) electrospinning
in vitro
onto cells, (g) dual
spinneret electrospinning, (h) electrospinning cells with polymer electrospinning-electrospraying with (i)
parallel and (j) perpendicular spinnerets.
from 5% to 15% w/v in 1,1,1,3,3,3-fl uoroisopropanol (HFIP) and was electrospun with identical con-
ditions, that is, 10 kV applied voltage, 12 cm tip-to-collector distance, and 0.75 mL/h fl ow rate. Below
8% solution concentration, the collagen fi bers were deposited in wet state. This deposition
is due
to incomplete evaporation of the solvent during electrospinning and it results in more fusion spots
when a fi ber comes into contact with another. A concentration of 8-10% produced more uniform and
