Synthesis and characterization of chitosan- g -poly(AMPS- co -AA- co -AM)/ground basalt composite hydrogel: antibacteria
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Synthesis and characterization of chitosan‑g‑poly(AMPS‑co‑AA‑co‑AM)/ground basalt composite hydrogel: antibacterial activity Yomen Atassi1 · Majd Said1 · Mohammad Tally1 · Lamia Kouba2 Received: 18 August 2019 / Revised: 18 August 2019 / Accepted: 3 November 2019 © Springer-Verlag GmbH Germany, part of Springer Nature 2019
Abstract A novel mineral-based superabsorbent hydrogel composite, poly (2-acrylamido2-methylpropanesulfonic acid-co-acrylic acid-co-acrylamide)/ground basalt: CS-gP(AMPS-co-AA-co-AM)/BST/BST, is prepared under microwave irradiation. The structural and morphological characterization of hydrogel is assessed using FTIR spectroscopy, X-ray diffractometry and scanning electron microscopy. The thermal stability of the hydrogel composite is explored using thermogravimetric analysis. The swelling kinetics of the hydrogel and the influence of the pH and the ionic strength of the surrounding solution on water absorbing capacity are also studied. The antibacterial activity of the superabsorbent composite against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) assayed by the inhibitory zone tests has shown that the introduction of ground basalt enhances the inhibition of the bacteria growth by simple contact with the hydrogel. To the authors’ knowledge, there have been no published scientific works that examine the synergistic bactericidal potency of combining ground basalt and chitosan-based hydrogels. Keywords Hydrogel · 2-Acrylamido-2-methyl-1-propanesulfonic acid · Acrylics · Chitosan · Basalt · Antibacterial activity
* Yomen Atassi [email protected] Majd Said [email protected] 1
Laboratory of Materials Science, Department of Applied Physics, Higher Institute for Applied Sciences and Technology, P.O. Box 31983, Damascus, Syria
2
Faculty of Medicine, University of Damascus, Damascus, Syria
13
Vol.:(0123456789)
Polymer Bulletin
Introduction Superabsorbent hydrogels (SAHs) are cross-linked hydrophilic polymeric network that can absorb, swell and retain large amounts of fluids even under some pressure [1, 2]. They are deemed smart materials as they reveal especial features according to the type of external stimuli they endure, such as changes in the pH, ionic strength and temperature, to name a few [3–5]. In light of this, SAHs applications are increasingly growing, namely in hygienic products, drug delivery systems, tissue engineering and agriculture [6]. Conventional SAHs are synthesized from acrylic monomers which are relatively expensive and poorly biodegradable. When designing new generations of SAHs, some considerations are taken into account, including high water capacity, fast swelling rate, biodegradability, low production cost and accepted mechanical gel strength [7]. Therefore, the preparation of multicomponent SAHs by graft polymerizing vinyl monomers on the chains of biodegradable polymers (starch, chitosan, carboxymethyl cellulose) and/or blending SAHs with clays, designates a trendy approach for designing novel SAHs [7–10]. In order to expand
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