Bone tissue engineering approaches are an emerging strategy to treat bone defects, and commonly involve the delivery of osteogenic cells and/or drugs via a porous scaffold. We have been exploring an alternative injectable approach for drug delivery that would obviate the need for invasive surgery. Sucrose Acetate Isobutyrate (SAIB) is a sucrose-based ester that is a highly viscous semi-solid. Diluting SAIB with 10–20% ethanol markedly reduces its viscosity, with ethanol diffusing rapidly after Introduction
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