Synthesis, characterisation and potential applications of polyaniline/chitosan‐Ag‐nano‐biocomposite

Abstract

Biodegradable polymers have greatly promoted the development of environmental, biomedical and allied sciences because of their biocompatibility and doping chemistry. The emergence of nanotechnology has envisaged greater options for the development of biodegradable materials. Polyaniline grafted chitosan (i.e. biodegradable PANI) copolymer was prepared by the chemical in situ polymerisation of aniline using ammonium per sulphate as initiator while Ag nanoparticle were synthesised by chemical reduction method and incorporated in to the polymer matrix. The as prepared materials were characterised by Xray diffraction, Fourier transform Infra-red spectroscopy, transmission electron microscopy, energy dispersive X-ray analysis. Moreover energy storage capacity, impedance properties were also studied. The main focus was on the photocatalytic degradation of organic dyes to remove the toxic and carcinogenic pollutants. This polymer nano-biocomposite has multifold applications and can be used as excellent materials for enhanced photodegradation and removal of toxic contaminants from waste waters and natural water streams. In addition, the biocompatible materials with excellent mechanical properties and low toxicity can also be used for tissue engineering, drug delivery and electrical energy storage devices.

Aniline-co-o-anthranilic Acid Copolymer-Chitosan/Ag@AgCl Nanohybrid as a Carrier for (E)-N′-(Pyridin-2-ylmethylene) Hydrazinecarbothiohydrazide Release and Antimicrobial Activity

“…The excessive growth of microbial communities confirms the nontoxicity of CS/PANI, and the clearance of the synthesized copolymer verifies the biodegradability. 25 These results confirm that CS/PANI can be used safely in biomedical applications. 2 On the other hand, the development of an aniline/anthranilic acid copolymer (PAAN) sterically increases the interchain distance, favoring the formation of six-membered chelates through intramolecular interaction between carboxylate groups and cation radical nitrogen atoms, 27 and can be used for immobilization of bioactive species.…”

“… 24 Incorporation of PANI into CS developed a biodegradable polymer with high biocompatibility and nontoxicity. 25 Sultana et al examined the biodegradability of CS/PANI by growing microbial communities up to 21 25 days in CS/PANI. The excessive growth of microbial communities confirms the nontoxicity of CS/PANI, and the clearance of the synthesized copolymer verifies the biodegradability.…”

Enhanced Sensitivity of Surface Plasmon Resonance Biosensor Functionalized with Doped Polyaniline Composites for the Detection of Low-Concentration Acetone Vapour

“…All the characteristics peaks for PANI, chitosan, and RGO were observed as summarised in Tables 1 and 2 for FTIR and UV-VIS, respectively. FTIR confirmed the presence of two important PANI peaks due to quinoid and benzoid vibration, respectively (Table 1) [71,72].…”

Zinc oxide-decorated polypyrrole/chitosan bionanocomposites with enhanced photocatalytic, antibacterial and anticancer performance

“…chitosan is a linear macromolecular polysaccharide and the second most abundant biopolymer aer cellulose. [17][18][19] Being a biodegradable polymer with some unique properties, it nds many applications in different eld such as medicine, food, 20 drugs, 21 and environmental remediation. 22 Chitosan has -NH 2 groups that convert into NH 3 + during protonation, which attack the anionic groups and remove those parts from the dye.…”