Biomedical Engineering Reference
In-Depth Information
Figure 6.4. Toluidine blue stain of C/GP gel with 30 lg BP demonstrated an abundance of
chondrocytes encompassed by a territorial cartilagenous matrix. (10
×
) (See color insert.)
(A)
(B)
Figure 6.5. A. Demonstrates the injectability of the hdyrogel using a 21 guage needle.
B. Human foreskin fi broblast cells encapsulatedin chitosan-ammonium hydrogen phosphate
thermogels after 3 days in culture. Cells stained green (live cells) and cells stained red (dead
cells). (See color insert.)
system, the concentration of the inorganic phosphate salt required to achieve
thermogelation has been found to be signifi cantly lower. The injectability of the
system as well as the feasibility of using chitosan—AHP thermogels as a cell
delivery vehicle has been demonstrated [Nair et al., 2007]. Figure 6.5a shows the
feasibility of injecting chitosan-phosphate solution using a 21-guage needle and
 
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