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. 2015 Aug 5;6(3):667–686. doi: 10.3390/jfb6030667

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© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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FTIR spectra of electrospun PDLLA/collagen scaffolds. FTIR spectra for PDL20, PDL40, PDL60 and PDL80. Corresponding to the increase of PDLLA contents in the blends, peaks at 1748 cm⁻¹ and in the region of 1300 to 1100 cm⁻¹ increase, while peaks in the region of 1500 to 1700 cm⁻¹ and at 1650 cm⁻¹ decrease.