Preparation and swelling behavior of pH/temperature responsive semi-IPN hydrogel based on carboxymethyl xylan and poly(N-isopropyl acrylamide)

Sun, Xiao Feng; Zeng, Qihang; Wang, Haihong; Hao, Yiwei

doi:10.1007/s10570-018-2180-x

Cited by 50 publications

(20 citation statements)

References 49 publications

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“…Likewise, many such formulations have been designed by researchers, which displayed promising results, such as (PNIPAM)/hydroxyapatite (HAp) scaffold [ 246 ], carboxymethyl xylan (CMX)-PNIPAm (CMX-PNIPAm) [ 247 ], etc.…”

Section: Pnipams Hydrogel In Tissue Engineeringmentioning

confidence: 99%

Poly(N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art

Ansari

Rajendran

Mohanto

et al. 2022

Gels

113

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A prominent research topic in contemporary advanced functional materials science is the production of smart materials based on polymers that may independently adjust their physical and/or chemical characteristics when subjected to external stimuli. Smart hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) demonstrate distinct thermoresponsive features close to a lower critical solution temperature (LCST) that enhance their capability in various biomedical applications such as drug delivery, tissue engineering, and wound dressings. Nevertheless, they have intrinsic shortcomings such as poor mechanical properties, limited loading capacity of actives, and poor biodegradability. Formulation of PNIPAM with diverse functional constituents to develop hydrogel composites is an efficient scheme to overcome these defects, which can significantly help for practicable application. This review reports on the latest developments in functional PNIPAM-based smart hydrogels for various biomedical applications. The first section describes the properties of PNIPAM-based hydrogels, followed by potential applications in diverse fields. Ultimately, this review summarizes the challenges and opportunities in this emerging area of research and development concerning this fascinating polymer-based system deep-rooted in chemistry and material science.

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Section: Pnipams Hydrogel In Tissue Engineeringmentioning

confidence: 99%

Poly(N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art

Ansari

Rajendran

Mohanto

et al. 2022

Gels

113

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“…Lignin molecule contains hydroxyl and carboxyl groups, which have the chelating ability, and it is beneficial for adsorbing metal ions [ 5 ]. Hemicellulose also contains a lot of hydroxyl groups and some carboxyl groups, and it could crosslink with other polymers to form a hydrogel [ 6 , 7 ]. The addition of lignin in the hemicellulose hydrogel was found to improve pore structure, because lignin molecule has a lot of hydroxyl groups [ 8 ], and the impact of lignosulfonates on the properties of hemicellulose hydrogel has been studied [ 9 , 10 ] and the mechanical, thermal, and chemical properties, as well as adsorption capacity, were dependent on lignosulfonates dosage.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Hydrogel Adsorbent Based on Cellulose, Hemicellulose, and Lignin for Copper(II) Ion Removal

et al. 2021

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Cellulose, hemicellulose, and lignin are three kinds of biopolymer in lignocellulosic biomass, and the utilization of the three biopolymers to synthesize hydrogel adsorbent could protect the environment and enhance the economic value of the biomass. A novel hydrogel adsorbent was prepared using cellulose, lignin, and hemicellulose of wheat straw by a one-pot method, and the adsorbent showed excellent adsorption performance for copper(II) ions. Scanning electron microscopy and Fourier transform infrared spectroscopy analysis showed that the prepared straw-biopolymer-based hydrogel had porous structure, and cellulose fibrils had crosslinked with lignin and hemicellulose by poly(acrylic acid) chains. The effects of contact time, initial concentration, and temperature on the copper(II) ion removal using the prepared hydrogels were investigated, and the obtained results indicated that the adsorption kinetics conformed to the pseudo-second-order and Elovich equation models and the adsorption isotherm was in accord with the Freundlich model. The adsorption thermodynamics study indicated that the adsorption process was spontaneous and accompanied by heat. X-ray photoelectron spectroscopy analysis revealed that the adsorption behavior resulted from ion exchange. The prepared hydrogel based on cellulose, hemicellulose, and lignin could be used for water treatment and soil remediation because of its high performances of excellent heavy metal ion removal and water retention.

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“…At temperatures below the LCST, these macromolecules are hydrophilic, while at temperatures above LCST, they become hydrophobic and collapse. 7 Poly(N-isopropylacrylamide) (PNIPAAm) is one of the most popular temperature-sensitive polymers, 8,9 and its LCST is around 32 C. In order to raise the LCST of PNIPAAm to make it closer to the physiological temperature of the human body, NIPAAm can be copolymerized with hydrophilic monomers. This can be attributed to the formation of intrachain hydrogen bonds between the two groups, hydrophilic monomer and NIPAAm.…”

Section: Introductionmentioning

confidence: 99%

Aqueous-based electrospun P(NIPAAm-co-AAc)/RSF medicated fibrous mats for dual temperature- and pH-responsive drug controlled release

Zhu

Jia

et al. 2020

RSC Adv.

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Preparation and swelling behavior of pH/temperature responsive semi-IPN hydrogel based on carboxymethyl xylan and poly(N-isopropyl acrylamide)

Cited by 50 publications

References 49 publications

Poly(N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art

Poly(N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art

High-Performance Hydrogel Adsorbent Based on Cellulose, Hemicellulose, and Lignin for Copper(II) Ion Removal

Aqueous-based electrospun P(NIPAAm-co-AAc)/RSF medicated fibrous mats for dual temperature- and pH-responsive drug controlled release

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