Post-culture treatment protocols for PLGA membrane scaffolds


Ellis, M. J., Forsey, R. and Chaudhuri, J. B., 2010. Post-culture treatment protocols for PLGA membrane scaffolds. Biotechnology Letters, 32 (2), pp. 215-222.

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The interactions of post-culture treatments reagents used for fixing, lysing and cell quantification on poly(lactide-co-glycolide) (PLGA) flat sheet membrane scaffolds are presented. Lysing with Alkaline buffer solution/Triton X-100/MilliQ water (ATM) and fixing with 10% Neutral Buffered Formalin (10% NBF) had no affect on membrane structure while fixing with 95% ethanol caused smoothing of the surface, shrinkage and a reduction in surface area of 55, 48 and 33, for 100:0, 75:25 and 50:50 (PLA:PGA), respectively. PicoGreen assay was selected for cell (560pZIPv.neo) quantification since the background noise would not affect readings for cell numbers over 3,000 cells/cm(2), while the background reading was too high for MTT and Methylene Blue (MB). MB at 0.5% (w/v) was, however, deemed suitable for visualising cell morphology on the membranes. Furthermore ATM buffer was suitable for the PicoGreen assay, which allows the same samples to be used for quantification of alkaline phosphatase activity.


Item Type Articles
CreatorsEllis, M. J., Forsey, R. and Chaudhuri, J. B.
Related URLs
DepartmentsFaculty of Engineering & Design > Chemical Engineering
Research CentresCentre for Regenerative Medicine
ID Code17835


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