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ATR-FTIR spectra of electrospun nanofibres composed of photo-cross-linked alginate blended with PEO. (a) PEO alone, (b) pure alginate, (c) HRMA84 nanofibres, (d) PEO-extracted UMA84, (e) PEO-extracted RMA84, (f) PEO-extracted HRMA84. White arrows indicate a characteristic peak of alginate; black arrows indicate PEO peaks.
