Green starch/graphene oxide hydrogel nanocomposites for sustained release applications

被引：18

作者：

Sayed, Asmaa ^{[1
]}

Yasser, Mai ^{[2
]}

Abdel-raouf, Manar El-sayed ^{[3
]}

Mohsen, Reham ^{[2
,4
]}

机构：

[1] Egyptian Atom Energy Author, Natl Ctr Radiat Res & Technol, Polymer Chem Dept, Cairo, Egypt

[2] October Univ Modern Sci & Arts MSA, Fac Biotechnol, Giza, Egypt

[3] Egyptian Petr Res Inst, 1 Ahmed Elzomor St, Cairo 11727, Egypt

[4] Univ Greenwich, Fac Engn & Sci, Medway Campus, Chatham ME4 4TB, Kent, England

来源：

CHEMICAL PAPERS | 2022年 / 76卷 / 08期

关键词：

Biopolymer; Gamma-irradiation; Polymerization; Characterization; Atomic force microscopy; Swelling study; ATOMIC-FORCE MICROSCOPY; MODIFIED GRAPHENE OXIDE; GRAFT-COPOLYMERIZATION; DRUG-DELIVERY; CROSS-LINKING; STARCH; COMPOSITE; REMOVAL; POLYSACCHARIDE; DEGRADATION;

D O I：

10.1007/s11696-022-02236-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Green nanocomposite hydrogels (ST-PHEMA/GO) comprised of starch and 2-Hydroxyethyl methacrylate (HEMA) reinforced with different ratios of graphene oxide (GO) were prepared via gamma radiation induced crosslinking polymerization. The chemical structure and morphology and the crystallinity were studied by FTIR FE-SEM, AFM, TEM and XRD, respectively. The swelling behavior of the claimed hydrogels was verified versus time and the pH-dependent swelling at three different irradiation dose:10, 20 and 30 kGy was also investigated. The results of the swelling study showed that the swelling capacity of the hydrogel networks varied with the changes of the pH of the solution, the GO content and the irradiation doses. Moreover, the swelling isotherm of all the prepared hydrogels followed a Fickian diffusion mechanism n < 0.5. [GRAPHICS] .

引用

页码：5119 / 5132

页数：14

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