DOI: 10.5061/dryad.79cnp5hww
title: Data from: Effects of poly(vinyl alcohol) blending with Ag/alginate solutions to form nanocomposite fibers for potential use as antibacterial wound dressings

description: The first set of data comprise FTIR spectra of Ca-alginate,
 Ag/Ca-alginate, pure PVA, PVA/Ca-alginate, and PVA/Ag/Ca-alginate fibers.
 The fibers were obtained by extrusion and gelation of the aqueous
 solutions with following compositions: for Ag/Ca-alginate fibers
 - 1.27 ± 0.08 w/v Na-alginate and AgNPs at 2.6 mM, for
 Ca-alginate fibers - 1.27 ± 0.08 w/v Na-alginate, for PVA fibers - 5.7 %
 w/v PVA, for PVA/Ca-alginate fibers - 5.7 % w/v PVA and 1.27 ±
 0.08 w/v Na-alginate, and for PVA/Ag/Ca-alginate fibers - 5.7 % w/v PVA,
 1.27 ± 0.08 w/v Na-alginate and AgNPs at 2.6 mM. The second set of data
 are UV-Visible absorption spectra of the initial PVA/Ag/Na-alginate
 colloid solution (5.7 % w/v PVA, 1.27 ± 0.08 w/v Na-alginate, 2.6 mM
 nominal silver concentration) and resulting fibers produced after gelling
 of alginate after dissolution in 2.28 % w/v sodium citrate solution. The
 third set of data are force and stroke values over time measured by using
 a Universal Testing Machine for Ca-alginate fibers obtained from
 the 1.27 ± 0.08 % w/v Na-alginate solution
 and PVA/Ca-alginate fibers, obtained from the solution containing
 5.67 % w/v PVA and 1.27 ± 0.08 % w/v Na-alginate at the initial time, and
 after drying and rehydration for 24 h and 48 h in physiological saline
 solution. 
description: The IR spectra of dry Ca-alginate, Ag/Ca-alginate, PVA,
 PVA/Ca-alginate, and PVA/Ag/Ca-alginate fibers in the form of KBr pellets
 were recorded in the transmission mode between 400 and 4000
 cm<sup>-1</sup> using a BOMEM MB100 spectrophotometer
 (Hartmann & Braun, Canada), while the IR spectrum of Na-alginate
 powder was recorded in the transmission mode between 550 and 4000
 cm<sup>−1</sup> by using a Thermo Scientific Nicolet iS10
 FT-IR spectrometer (Thermo Fisher Scientific, Waltham, MA) with a
 resolution of 4 cm<sup>−1</sup>, operating in ATR mode. Data
 were collected in the prn format and converted to xls format.
 UV–visible spectroscopy (UV-3100 spectrophotometer, MAPADA,
 Shanghai, China) was used to confirm the presence of silver nanoparticles
 in the initial PVA/Ag/Na-alginate colloid solution (5.7 % w/v PVA, 1.27 ±
 0.08 w/v Na-alginate, 2.6 mM nominal silver concentration) and resulting
 fibers produced after gelling of alginate. The fibers were dissolved in
 2.28 % w/v sodium citrate solution. In brief, wet hydrogel weight of 0.1 g
 was dissolved in 2.9 cm<sup>3</sup> of the solution and the
 dry hydrogel weight of 0.01 g in 6 cm<sup>3</sup>. Data are
 obtained as sca and traferred to xls format. Mechanical
 properties of Ca-alginate fibers obtained from the 1.27 ± 0.08 % w/v
 Na-alginate solution and PVA/Ca-alginate fibers, obtained from the
 solution containing 5.67 % w/v PVA and 1.27 ± 0.08 % w/v Na-alginate at
 the initial time, and after drying and rehydration for 24 h and 48 h in
 physiological saline solution were determined by testing at a Universal
 Testing Machine, AG–X Plus ( Shimadzu , Japan ). The initial grip
 separation was set at 30 mm and the test speed was set at 10 mm
 min<sup>-1</sup>. The fibers were moistened with distilled
 water during the mechanical testing experiments. All measurements were
 done at room temperature. Data are exported directly to xls
 format.