Functionalization of Nanofibrillated Cellulose with Silver Nanoclusters: Fluorescence and Antibacterial Activity

被引：105

作者：

Diez, Isabel ^{[1
]}

Eronen, Paula ^{[2
]}

Osterberg, Monika ^{[2
]}

Linder, Markus B. ^{[3
]}

Ikkala, Olli ^{[1
]}

Ras, Robin H. A. ^{[1
]}

机构：

[1] Aalto Univ, Dept Appl Phys, FIN-02150 Espoo, Finland

[2] Aalto Univ, Forest Prod Surface Chem Grp, Dept Forest Prod Technol, Sch Chem Technol, FIN-00076 Espoo, Finland

[3] VTT Tech Res Ctr Finland, FIN-02044 Espoo, Finland

来源：

MACROMOLECULAR BIOSCIENCE | 2011年 / 11卷 / 09期

基金：

芬兰科学院;

关键词：

bactericides; luminescence; nanocelluloses; nanofibers; nanoclusters; MICROFIBRILLATED CELLULOSE; POLYMER NANOCOMPOSITES; MECHANICAL-PROPERTIES; NANOFIBERS; NANOPARTICLES; TRANSPARENT; FIBER; COMPOSITES; ADSORPTION; MODEL;

D O I：

10.1002/mabi.201100099

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Native cellulose nanofibers are functionalized using luminescent metal nanoclusters to form a novel type of functional nanocellulose/nanocluster composite. Previously, various types of cellulose fibers have been functionalized with large, non-luminescent metal nanoparticles. Here, mechanically strong native cellulose nanofibers, also called nanofibrillatedcellulose (NFC), microfibrillatedcellulose (MFC) ornanocellulose, disintegrated from macroscopic cellulose pulp fibers are used as support for small and fluorescent silver nanoclusters. The functionalization occurs in a supramolecular manner, mediated by poly(methacrylic acid) that protects nanoclusters while it allows hydrogen bonding with cellulose, leading to composites with fluorescence and antibacterial activity.

引用

页码：1185 / 1191

页数：7

共 66 条

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