DL-mandelic acid intercalated Zn-Al layered double hydroxide: A novel antimicrobial layered material

被引：40

作者：

Tang, Li-Ping ^{[1
]}

Cheng, Hui-Min ^{[1
]}

Cui, Shu-Mei ^{[1
]}

Wang, Xin-Rui ^{[1
]}

Song, Li-Ya ^{[1
]}

Zhou, Wei ^{[1
]}

Li, Shu-Jing ^{[1
]}

机构：

[1] Beijing Technol & Business Univ, Sch Sci, Key Lab Cosmet, China Natl Light Ind, Beijing 100048, Peoples R China

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2018年 / 165卷

基金：

中国国家自然科学基金;

关键词：

Layered double hydroxide; DL-mandelic acid; Intercalation; Slow release; Antimicrobial; ANIONIC CLAYS; THIN-FILMS; POLARIZED EMISSION; UV ABSORBENT; RELEASE; NANOHYBRIDS; HYDROTALCITE; DELIVERY; PHOTOPROTECTION; IBUPROFEN;

D O I：

10.1016/j.colsurfb.2018.02.017

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

DL-mandelic acid (MA) has been intercalated into Zn-Al layered double hydroxide (LDH) by an anion exchange reaction. After intercalation of MA anions, the basal spacing of the LDH increased from 0.75 to 1.46 nm, suggesting that the MA anions were successfully intercalated into the interlayer galleries of the LDH. The structure and the thermal stability of the samples were characterized by XRD, FT-IR, TG-DTA. Studies of MA release from ZnAl-MA-LDH in hydrochloric solution (pH = 4) imply that ZnAl-MA-LDH is a better controlled release system than pure MA. Meanwhile, the mechanisms of slow release were assessed by using four commonly kinetic models. Finally, the antimicrobial activity of ZnAl-MA-LDH was tested against two kinds of bacteria and a fungus. The study confirms that the mandelic ions intercalated LDHs have the potential application as a slow release preservative in the future. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：111 / 117

页数：7

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