PREPARATION AND RELEASE PROPERTIES OF A pH-TUNABLE CARBOXYMETHYL CELLULOSE HYDROGEL/METHYLENE BLUE HOST/GUEST MODEL

被引：0

作者：

Yang Shaoping ^{[1
]}

Fu Shiyu ^{[1
]}

Zhou Yiming ^{[1
]}

Xie Chuanlong ^{[1
]}

Li Xueyun ^{[1
]}

机构：

[1] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

RESEARCH PROGRESS IN PAPER INDUSTRY AND BIOREFINERY (4TH ISETPP), VOLS 1-3 | 2010年

关键词：

carboxymethyl cellulose; hydrogel; pH Tunable; adsorption; release; DRUG-DELIVERY; HYDROGELS; BEHAVIOR; BEADS;

D O I：

暂无

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

PH-sensitive carboxymethyl cellulose (CMC) hydrogel beads were successfully prepared in spherical form by a suspension-cross-linking technique by using epichlorohydrin (ECH) as the crosslinking agent and fluid wax as the suspending solvent. The hydrogel beads are nearly perfect spherical shape with diameter about 4 mm, which exhibits reversible pH-sensitive behavior. The hydrogel beads have good characteristics of adsorption and release. Their ability to uptaking and releasing cationic guest molecules, such as methylene blue, could be tuned by controlling the degree of carboxylate ionization via pH. At 25 degrees C, the maximum loading amount for Methylene Blue (MB) exceeded 1350.6 g/g with 56.27% adsorption ratio.

引用

页码：173 / 176

页数：4

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