Water repellent Ag/Ag2O@bamboo cellulose fiber membrane as bioinspired cargo carriers

Yaru Wang; Ximu Zhang; Xiaofang Zhang; Jiangqi Zhao; Wei Zhang; Canhui Lu

doi:10.1016/j.carbpol.2015.07.043

Water repellent Ag/Ag2O@bamboo cellulose fiber membrane as bioinspired cargo carriers

Carbohydr Polym. 2015 Nov 20:133:493-6. doi: 10.1016/j.carbpol.2015.07.043. Epub 2015 Jul 19.

Authors

Yaru Wang¹, Ximu Zhang², Xiaofang Zhang¹, Jiangqi Zhao¹, Wei Zhang³, Canhui Lu⁴

Affiliations

¹ State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China.
² State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
³ State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. Electronic address: weizhang@scu.edu.cn.
⁴ State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. Electronic address: canhuilu@263.net.

PMID: 26344306
DOI: 10.1016/j.carbpol.2015.07.043

Abstract

Water striders can walk on water. To mimic this function, a porous membrane consisted of bamboo cellulose fiber was hybridized with Ag/Ag2O nanoparticles through a facile in situ method to produce water repellent and well-ventilated materials. Herein, we report the sole surface roughness created by Ag/Ag2O nanoparticles could render the membrane a water contact angle (CA) of 140±3.0°. When floating on water, the hybrid membrane was able to support a heavy load more than 10 times the weight of the membrane itself. Additionally, this membrane demonstrated capabilities for oil sampling under water or oil/water separation and strong antibacterial activity against Escherichia coli. Thus we foresee that this novel hybrid membrane can be potentially utilized as drag-reducing, gas permeable and antibiotic substrates for constructing miniature aquatic devices.

Keywords: Bioinspiration; Cargo carriers; Cellulose; Hydrophobization.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Anti-Bacterial Agents / chemistry
Anti-Bacterial Agents / pharmacology
Biomimetic Materials / chemistry*
Biomimetic Materials / pharmacology
Cellulose / chemistry*
Escherichia coli / drug effects
Hydrophobic and Hydrophilic Interactions*
Membranes, Artificial
Oxides / chemistry*
Poaceae / chemistry
Ships*
Silver / chemistry*
Silver Compounds / chemistry*
Water / chemistry*

Substances

Anti-Bacterial Agents
Membranes, Artificial
Oxides
Silver Compounds
Water
Silver
disilver oxide
Cellulose