10.5061/DRYAD.79CNP5HWW
Obradovic, Bojana
0000-0002-7276-0442
University of Belgrade
Vidovic, Srdjan
University of Belgrade
Stojkovska, Jasmina
University of Belgrade
Marinkovic, Aleksandar
University of Belgrade
Balanc, Bojana
0000-0002-7859-9979
University of Belgrade
Data from: Effects of poly(vinyl alcohol) blending with Ag/alginate
solutions to form nanocomposite fibers for potential use as antibacterial
wound dressings
Dryad
dataset
2021
Ca-alginate hydrogel
PVA/Ca-alginate hydrogel
PVA/Ag/Ca-alginate hydrogel
FTIR
UV-visible spectra
Mechanical testing
2021-12-18T00:00:00Z
2021-12-18T00:00:00Z
en
10628913 bytes
4
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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.
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-1 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−1 by using a Thermo Scientific Nicolet iS10 FT-IR
spectrometer (Thermo Fisher Scientific, Waltham, MA) with a resolution of
4 cm−1, 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 cm3 of the
solution and the dry hydrogel weight of 0.01 g in 6 cm3. 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-1. 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.