Synthesis, characterization and water retention study of biodegradable Gum ghatti-poly(acrylic acid–aniline) hydrogels

Gum ghatti and poly(acrylamide-co-acrylic acid) based biodegradable hydrogel-evaluation of the flocculation and adsorption properties

“…The appearance of these cracks and fractures confirmed the initiation of the process of biodegradation in this stage. In the second stage of the biodegradation, the number and size of these cracks and fractures increased and this may due to the breaking of the cross-links between different polymeric chains and starting of the degradation of the individual components of hydrogel polymer [16,37,48]. However, in the third and the final stage of the biodegradation the size and number of these fractures and cracks were drastically increased, and the polymer surface became completely rough and heterogeneous due to the complete fractured surface and the complete degradation of the individual components of the Gg-cl-P(AAM-co-AA) hydrogel polymer (Fig.…”

Modification of polysaccharides: Pharmaceutical and tissue engineering applications with commercial utility (patents)

“…It is a desired feature when water is required to avoid dryness. Water holding capacity becomes very important to promote cell implantation and drug delivery [16]. Bacterial cellulose having good mechanical strength has modified using acrylamide shows better drug entrapment efficiency and more porosity as drug carrier.…”

Evaluation of a conducting interpenetrating network based on gum ghatti-g-poly(acrylic acid-aniline) as a colon-specific delivery system for amoxicillin trihydrate and paracetamol

“…APS creates free radical sites on both the monomer and the backbone which further leads to graft copolymerization as per the mechanism depicted in Scheme 1. 18 Further, on doping with different concentrations of HCl the IPN was converted into conducting IPNs (Scheme 2c). SO 4 À radicals on reaction with H 2 O molecules give rise to the formation of OH and HSO 4 À .…”

“…14 Li and Liu prepared semi-IPN hydrogels consisting of poly(methacrylic acid) and guar gum for colonspecific drug delivery. [18][19][20][21][22][23][24] These hydrogels can be efficiently utilized in wastewater treatment for removal of dyes and toxic metal ions from water. Various authors synthesized electrical conducting hydrogels based on different natural polysaccharides through graft copolymerization reaction.…”

“…Various authors synthesized electrical conducting hydrogels based on different natural polysaccharides through graft copolymerization reaction. 18,23 The present work deals with the free radical polymerization of conducting IPN consisting of Gg, poly(AA) and polyaniline using N,N 0 -methylene-bis-acrylamide (MBA) and ammonium persulphate (APS) as a crosslinker-initiator system. 17 The Gg is mainly obtained from the exudation of ghatti trees and used in the food industry and research is currently ongoing on the development of Gg based drug delivery systems.…”