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A rapid, non-invasive and non-destructive method for studying swelling behavior and microstructure variations of hydrogels
Li, Yaqiong1; Li, Xiunan2; Chen, Chao2; Zhao, Dawei2; Su, Zhiguo2,3; Ma, Guanghui2; Yu, Rong1
2016-10-20
发表期刊CARBOHYDRATE POLYMERS
ISSN0144-8617
卷号151期号:OCT页码:1251-1260
摘要A new method for studying swelling behavior of hydrogels was developed based on low field NMR (LFNMR). This method is established on these facts: firstly, internal water (water trapped in hydrogel) and external water (water outside of hydrogel) correspond to different components of transverse relaxation time (T-2); secondly, T-2 component amplitude is proportional to relative water content; and finally, T-2 value is closely related to mesh size of hydrogel network, the main effect being due to the overall concentration (degree of swelling). This method was successfully applied to swelling ratio determination of chitosan/glutaraldehyde (CS/GA) hydrogels in situ, and the results had better accuracy and repeatability compared with that of weighing method. Furthermore, swelling kinetics at different pH and microstructure of CS/GA hydrogels was well elucidated based on T-2. It is clearly showed that LF-NMR provides a powerful tool for probing processes related to water transport and microstructure variation of hydrogels. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Hydrogels Swelling Lf-nmr T-2 Microstructure
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.carbpol.2016.06.054
收录类别SCI
语种英语
关键词[WOS]CONTROLLED-RELEASE ; WATER MOBILITY ; NMR RELAXATION ; DRUG-DELIVERY ; LUNG INJURY ; CHITOSAN ; PROTEIN ; GELATINIZATION ; DYNAMICS ; PH
WOS研究方向Chemistry ; Polymer Science
WOS类目Chemistry, Applied ; Chemistry, Organic ; Polymer Science
项目资助者National High Technology Research and Development Program of China (863 Program)(2014AA021005 ; National Natural Science Foundation of China(21376248 ; National Key Scientific Instrument and Equipment Development Project(2013YQ14040508) ; Doctoral Fund of the Ministry of Education(20120181110036) ; Opening Foundation of National Key Laboratory of Biochemical Engineering(2014KF-4) ; 2014AA021006) ; 21506228)
WOS记录号WOS:000380943900142
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21288
专题生化工程国家重点实验室
作者单位1.Sichuan Univ, West China Sch Pharm, Minist Educ, Key Lab Drug Targeting & Drug Delivery Syst, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 210023, Jiangsu, Peoples R China
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GB/T 7714
Li, Yaqiong,Li, Xiunan,Chen, Chao,et al. A rapid, non-invasive and non-destructive method for studying swelling behavior and microstructure variations of hydrogels[J]. CARBOHYDRATE POLYMERS,2016,151(OCT):1251-1260.
APA Li, Yaqiong.,Li, Xiunan.,Chen, Chao.,Zhao, Dawei.,Su, Zhiguo.,...&Yu, Rong.(2016).A rapid, non-invasive and non-destructive method for studying swelling behavior and microstructure variations of hydrogels.CARBOHYDRATE POLYMERS,151(OCT),1251-1260.
MLA Li, Yaqiong,et al."A rapid, non-invasive and non-destructive method for studying swelling behavior and microstructure variations of hydrogels".CARBOHYDRATE POLYMERS 151.OCT(2016):1251-1260.
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