Issue 26, 2015
From the journal:

RSC Advances

Ultrasonic fabrication of TiO2/chitosan hybrid nanoporous microspheres with antimicrobial properties

Meifang Zhou,a   Bandar Babgi,b   Shweta Gupta,a   Francesca Cavalieri,ac   Yousef Alghamdi,b   Mecit Aksub  and  Muthupandian Ashokkumar*ab  

* Corresponding authors

a School of Chemistry, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
E-mail: masho@unimelb.edu.au
Tel: +61 3 93475180

b Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

c Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Roma, Italy

Abstract

We report a sonochemical method for the fabrication of stable TiO2–chitosan hybrid microspheres possessing nanoporous structure and antimicrobial properties. The microspheres were characterized by evaluating their size, surface morphology, and ultrasound-triggered release of encapsulated materials. The size range of the microspheres was found to be in the range 2–20 μm. The antimicrobial activity of TiO2/chitosan microspheres was also evaluated. A possible mechanism for the formation of TiO2-encapsulated chitosan microspheres has been proposed. The methodology demonstrated here can be extended to fabricating nanoparticle or liquid delivery vectors and density controlled catalysts for applications in catalytic and biomedical areas.

Graphical abstract: Ultrasonic fabrication of TiO2/chitosan hybrid nanoporous microspheres with antimicrobial properties

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Article information

DOI
https://doi.org/10.1039/C4RA17109H
Article type
Paper
Submitted
27 Dec 2014
Accepted
10 Feb 2015
First published
10 Feb 2015

RSC Adv., 2015,5, 20265-20269

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Ultrasonic fabrication of TiO2/chitosan hybrid nanoporous microspheres with antimicrobial properties

M. Zhou, B. Babgi, S. Gupta, F. Cavalieri, Y. Alghamdi, M. Aksu and M. Ashokkumar, RSC Adv., 2015, 5, 20265 DOI: 10.1039/C4RA17109H

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