Detail publikace

Controlling the internal microstructure and properties of physically cross-linked PVA hydrogels by the rate of freezing

TRUDIČOVÁ, M. ZAHRÁDKA, J. SEDLÁČEK, P. PEKAŘ, M.

Originální název

Controlling the internal microstructure and properties of physically cross-linked PVA hydrogels by the rate of freezing

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

PVA hydrogels can be formed via physical crosslinking (e.g. by cyclic freezing/thawing of aqueous polyvinyl alcohol solutions) or with a chemical cross-linker. Physical crosslinking is more useful for biomedical applications since it contains no harmful cross-linker residues. This work, therefore, focused on studying properties of physically crosslinked hydrogels with different concentrations of polyvinyl alcohol (2.5 to 15 wt%) prepared via cyclic freezing/thawing under different cryogenic conditions: in the liquid nitrogen (-196 degrees C), in two different laboratory freezers (-80 degrees C and -18 degrees C) and the ice bath. Furthermore, the effects of the addition of several cryoprotectants were evaluated. The optical and mechanical properties of the prepared samples were studied, and the microstructure of the hydrogels was observed by scanning electron microscopy after freeze-drying.

Klíčová slova

hydrogel, polyvinyl alcohol, rheology, scanning electron microscopy

Autoři

TRUDIČOVÁ, M.; ZAHRÁDKA, J.; SEDLÁČEK, P.; PEKAŘ, M.

Vydáno

1. 1. 2021

Nakladatel

TANGER Ltd.

Místo

Ostrava

ISBN

978-80-87294-98-7

Kniha

Proceedings 12th International Conference on Nanomaterials - Research & Application

Strany od

547

Strany do

552

Strany počet

6

URL

https://www.confer.cz/nanocon/2020/3769-controlling-the-internal-microstructure-and-properties-of-physically-cross-linked-pva-hydrogels-by-the-rate-of-freezing

Plný text v Digitální knihovně

http://hdl.handle.net/11012/202244

BibTex

@inproceedings{BUT172085,
  author="Monika {Trudičová} and Jan {Zahrádka} and Petr {Sedláček} and Miloslav {Pekař}",
  title="Controlling the internal microstructure and properties of physically cross-linked PVA hydrogels by the rate of freezing",
  booktitle="Proceedings 12th International Conference on Nanomaterials - Research & Application",
  year="2021",
  pages="547--552",
  publisher="TANGER Ltd.",
  address="Ostrava",
  doi="10.37904/nanocon.2020.3769",
  isbn="978-80-87294-98-7",
  url="https://www.confer.cz/nanocon/2020/3769-controlling-the-internal-microstructure-and-properties-of-physically-cross-linked-pva-hydrogels-by-the-rate-of-freezing"
}