Microwave assisted vanillin crosslinked chitosan/polycarbophil superporous hydrogels for biomedical application: Optimization and characterization

Murthy, Shwetha Krishna; Basavaraj, Basappa Veerabhadraiah; Srinivasan, Bharath

doi:10.1016/j.matpr.2022.12.227

Cited by 4 publications

(3 citation statements)

References 36 publications

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“…Microwave radiation gives off both heat and electromagnetic radiation at the same time. This makes it more useful for studying (i) step growth [ 18 ], (ii) ring opening [ 19 ], radical polymerizations [ 20 ], and making hydrogels [ 21 ]. Shital et al made a magnetite chitosan-modified polymer composite hydrogel to dispose of dangerous chemicals in the solution, including Chicago sky blue (66.66 mg/g) and Crystal violet dyes (161.81 mg/g).…”

Section: Introductionmentioning

confidence: 99%

Radiation-Induced Hydrogel for Water Treatment

Haque,

Bhuyan,

Jeong

2024

Gels

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Along with serving as drug delivery sensors and flexible devices, hydrogels are playing pioneering roles in water purification. Both chemical and radiation methods can produce hydrogels, with the latter method gaining preference for its pure adducts. The water treatment process entails the removal of heavy and toxic metals (above the threshold amount), dyes, and solid wastes from industrial effluents, seawater, and groundwater, as well as sterilization for microorganism destruction. This review analyzed the different types of hydrogels produced by applying various radiations for water treatment. Particularly, we examined the hydrogels created through the application of varying levels of gamma and electron beam radiation from the electron gun and Co-60 sources. Moreover, we discuss the optimized radiation doses, the compositions (monomers and polymers) of raw materials required for hydrogel preparation, and their performance in water purification. We present and predict the current state and future possibilities of radiation-induced hydrogels. We explain and compare the superiority of one radiation method over other radiation methods (UV-visible, X-ray, microwave, etc.) based on water treatment.

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Section: Introductionmentioning

confidence: 99%

Radiation-Induced Hydrogel for Water Treatment

Haque,

Bhuyan,

Jeong

2024

Gels

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“…Esra Su et al prepared self-healing poly (AMPSA) by applying UV-radiation without using a cross-linker which gave a maximum swelling capacity of 1700 g.g −1 [12]. Shwetha Krishna Murthy et al reported microwave-assisted Chitosan/Polycarbophil super-porous hydrogels, which do not show better swelling, and the polymerization requires crosslinking agent Vanillin [20]. Despite the conventional methods, the UV-visible (200-700 nm wavelength) and the microwave (1 mm-30 cm wavelength) types of radiation are not highly energetic to activate all of the monomers transferring into the transition state where the reaction starts to proceed.…”

Section: Introductionmentioning

confidence: 99%

Gamma Radiation-Induced Advanced 2,3-Dimethylacrylic Acid-(2-Acrylamido-2-methyl-1-propanesulfonic Acid) Superabsorbent Hydrogel: Synthesis and Characterization

Bhuyan

Jeong

2023

Gels

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Gamma radiation technique for the preparation of pure hydrogels is gaining popularity worldwide. Superabsorbent hydrogels play vital roles in different fields of application. The present work mainly focuses on the preparation and characterization of 2,3-Dimethylacrylic acid-(2-Acrylamido-2-methyl-1-propane sulfonic acid) (DMAA–AMPSA) superabsorbent hydrogel by applying gamma radiation and optimization of the proper dose. To prepare DMAA–AMPSA hydrogel, different doses ranging from 2 kGy to 30 kGy were imparted on the blend aqueous solution of the monomers. The equilibrium swelling increases with increasing radiation dose, followed by decreasing after reaching a certain level, and the highest result is found to be 26,324.9% at 10 kGy. Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy confirmed the formation of co-polymer by showing the characteristic functional groups and proton environment of the gel. X-ray Diffraction (XRD) pattern indicates the crystalline/amorphous nature of the gel. The Differential Scanning Calorimetry (DSC) and Thermogravimetry Analysis (TGA) revealed the thermal stability of the gel. The surface morphology and constitutional elements were analyzed and confirmed by Scanning Electron Microscopy (SEM) equipped with Energy Dispersive Spectroscopy (EDS). Finally, it can be stated that hydrogels can be usable in metal adsorption, drug delivery, and other relevant fields.

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“…Structurally, V has three substituent groups linked to an aromatic ring, an aldehyde, a –OH, and a –OCH 3 . The aldehyde group in particular has been demonstrated to effectively undergo grafting reactions to functionalize different biopolymers, such as chitosan [ 31–33 ] and PVA [ 34–36 ] through Schiff base and acetal reactions, respectively. The phenolic –OH can also undergo chemical reactions, although it seems to be a much less exploited approach.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vanillin Concentration on the Properties of Poly(vinyl alcohol)‐Based Films Prepared to Potentially Replace Single‐Use Plastics

Salum,

Iguchi,

Fernández Chevichuk

et al. 2023

Macro Chemistry & Physics

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Packaging starting materials produced by incorporating vanillin into poly(vinyl alcohol) (PVA) to obtain biopolymer films to replace single‐use plastics of limited degradation are presented in this work. Very homogeneous films are obtained by the casting technique. Different concentrations of vanillin as an additive to produce the films and the manner in which they affect spectroscopic, thermal, and mechanical properties as well as their hydrophilicity/hydrophobicity balance and permeability behavior are analyzed. It is observed that increasing the concentration of vanillin in the films increases the thermal stability, tensile strength, and tensile strain at failure, but decreases the Tg values, hydrophilicity, and water vapor permeability (WVP). Thus, the combined results suggest that these films show an excellent potential to be used as raw materials to manufacture eco‐friendly packaging materials as a replacement for non‐degradable single‐use plastics. This procedure might be beneficial in several applied areas, such as in the food industry, where PVA is widely used although many properties must yet be enhanced, as accomplished in the present work.This article is protected by copyright. All rights reserved

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Microwave assisted vanillin crosslinked chitosan/polycarbophil superporous hydrogels for biomedical application: Optimization and characterization

Cited by 4 publications

References 36 publications

Radiation-Induced Hydrogel for Water Treatment

Radiation-Induced Hydrogel for Water Treatment

Gamma Radiation-Induced Advanced 2,3-Dimethylacrylic Acid-(2-Acrylamido-2-methyl-1-propanesulfonic Acid) Superabsorbent Hydrogel: Synthesis and Characterization

Effect of Vanillin Concentration on the Properties of Poly(vinyl alcohol)‐Based Films Prepared to Potentially Replace Single‐Use Plastics

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