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. 2011 Sep 20;5(3):032007–032007-10. doi: 10.1063/1.3614457

Figure 2.

Figure 2

The photographs of the electrospun PVP nanofibers and produced patterned PDMS surfaces under different concentrations. (a) The microscope images of the PVP nanofibers spun with five concentrations (640×). SEM image of PVP nanofibers spun with 16% initial concentration. (b) The microscope images of PDMS surfaces embedded with PVP nanofibers (640×). (c) The microscope images of patterned PDMS surfaces after fibers removal (640×). SEM image of PDMS surfaces patterned with microstructures.