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Host University: Cornell
Progress:
Quarterly Report: April 1-June 30, 2009
Surface chemistry and pore size distribution of nanofiber membranes have been modified to optimize transport of fluids, cells, biological molecules and detection molecules. A cellulose nitrate-acetate (CNA) mixed ester nanofiber has been created by replacing some acetate groups on cellulose acetate with nitrate and subsequently electrospinning fibrous membranes. This work was motivated by suitability of cellulose nitrate-acetate films for bioassays and the goal of creating high surface area membranes based on nanofibers. Membranes with bimodal pore size distribution designed for fluid and cell transport have been prepared by electrospinning fibers on collectors with patterned conductive and insulating elements. Characterization of pore size distribution and fluid transport properties of the membranes is in progress.
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