Fabrication of Shortened Electrospun Fibers with Concentrated Polymer Brush Toward Biomaterial Applications
In this research, we aimed to develop a new type of core-shell electrospun fiber, possessing “short” length (core) and “concentrated” polymer brush (shell). We prepared electrospun fibers with initiating moiety for surface-initiated atom transfer radical polymerization (SI-ATRP), one of living radical polymerizations. Then we grafted poly(sodium styrene sulfonate) (PSSNa) on the fibers by SI-ATRP. After the polymerization, we mechanically cut the electrospun fibers with a homogenizer, yielding regulated shortened fibers. Our ultimate goal is to make a novel shortened nanofibril biomaterial with concentrated brush as cell growth scaffolds. Therefore we expect that this unprecedented short nanofiber can be broadly applied as a biomaterial owing to the unique structures and properties of the concentrated brush. The details will be discussed.
Shiquan Liu and Min Zuo
C. F. Huang et al., "Fabrication of Shortened Electrospun Fibers with Concentrated Polymer Brush Toward Biomaterial Applications", Advanced Materials Research, Vols. 306-307, pp. 58-62, 2011