Antibacterial Superabsorbent Polymers from Tara Gum Grafted Poly(Acrylic acid) Embedded Silver Particles

Abstract

Tara gum/silver composite superabsorbent polymers were synthesized with tara gum grafted poly(acrylic acid), using K 2 S 2 O 8 (KPS) as an initiator and N,N -methylenebisacrylamide (MBA) as a cross-linker. The products were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). The results showed that the silver ions were partially reduced to Ag 0 and the amorphous nanoparticles containing Ag 0 and Ag 2 O were around 10~50 nm in size The tara gum/silver composite superabsorbent polymers exhibited an interconnected porous structure with strong water absorption capacity. The swelling ratio of each product could reach 473 g/g in distilled water and 62 g/g in 0.9% NaCl solution. The antimicrobial activity of the samples against Staphylococcus aureus and Escherichia coli increased with the addition of AgNO 3 from 0 to 125 mg. This work indicates that the developed tara gum/silver composite superabsorbent polymers can be potentially used for biomedical applications.

pH-Sensitive Polyampholyte Microgels of Poly(Acrylic Acid-co-Vinylamine) as Injectable Hydrogel for Controlled Drug Release

“…Among the varied polyelectrolytes, poly(acrylic acid) (PAA) is a common anion polyelectrolyte known for its pH-responsiveness, as it is composed polymeric backbones with pendant carboxyl groups. PAA is widely used in biomedical engineering, agriculture, and environmental protection [ 23 ]. Polyvinyl amine (PVAm) is a cationic polyelectrolyte that has the highest density of primary amine functional groups of any polymer.…”

Chemistry, Biological Activities, and Uses of Tara Gum

“…Due to the high hardness of tara seed coats, the industrial isolation of the endosperm is never quantitative. Hence, in commercial products, small amounts of protein-rich germ and fiber-rich seed coat can also be found [21]. The tara germ, obtained from the seed cotyledons, has a high content of proteins and is rich in vegetable oils.…”

“…The anti-Dengue virus activity was evaluated by using LLC-MK2 cells, a rhesus monkey kidney cell strain, and serotype 2 Dengue virus [44]. Synthesis of tara TG/Ag superabsorbent polymers with TG grafted poly (acrylic acid), using potassium persulfate as an initiator and N, N 0 -methylene bisacrylamide as a cross-linker was carried out [21]. The developed polymers were found to possess promising antibacterial activity when tested against E. coli and S. aureus [21].…”

Preparation and anti‐evaporation properties of organic–inorganic superabsorbent based on Tragacanth gum and clay

“…Thus, due to its optimal water retention and water absorption, SAP can be used as a water storage material in the arid desert environments 7 . In addition, SAP materials can also be applied in biomedical engineering, 8 agriculture and environmental protection, 9 health products, industrial dehydration, construction, etc 10 …”

“…6 Thus, due to its optimal water retention and water absorption, SAP can be used as a water storage material in the arid desert environments. 7 In addition, SAP materials can also be applied in biomedical engineering, 8 agriculture and environmental protection, 9 health products, industrial dehydration, construction, etc. 10 Tragacanth gum (GT) is a complex, acidic and highly branched anionic polysaccharide 11 containing a variety of carbohydrates, such as L-arabinose, D-galactose, D-xylose, L-fucose, L-Rhamnose and D-galacturonic acid.…”