Synthesis and immobilization of silver nanoparticles on aluminosilicate nanotubes and their antibacterial properties

G Ipek Yucelen,David J Westenberg,Rachel E Connell,Jessica R Terbush,Fatih Dogan

doi:10.1007/s13204-015-0467-x

G Ipek Yucelen, David J Westenberg + Show 3 more

Open Access

https://doi.org/10.1007/s13204-015-0467-x

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Abstract

A novel colloidal method is presented to synthesize silver nanoparticles on aluminosilicate nanotubes. The technique involves decomposition of AgNO3 solution to Ag nanoparticles in the presence of aluminosilicate nanotubes at room temperature without utilizing of reducing agents or any organic additives. Aluminosilicate nanotubes are shown to be capable of providing a unique chemical environment, not only for in situ conversion of Ag+ into Ag0, but also for stabilization and immobilization of Ag nanoparticles. The synthesis strategy described here could be implemented to obtain self-assembled nanoparticles on other single-walled metal oxide nanotubes for unique applications. Finally, we demonstrated that nanotube/nanoparticle hybrid show strong antibacterial activity toward Gram-positive Staphylococcus epidermidis and Gram-negative Escherichia coli.

Highlights

New multifunctional nanoparticle–nanotube hybrid systems, due to their unique and superior properties compared with their pure counterparts, increasingly forming the foundation of transformational developments in areas as diverse as electronics, photonics, catalysis, biotechnology, and energy storage among many other applications (Wu et al 2011; Mackiewicz et al 2008; Georgakilas et al 2007; Kong et al 2007; Li et al 2009)
We show the potential of aluminosilicate nanotubes (AlSiNTs)/AgNP nanocomposites as an antibacterial agent, and this finding may be useful in the application of single-walled metal oxide nanotube-based hybrids against clinically important Gram-negative and Gram-positive bacteria
The size distribution and morphology of the as-prepared AlSiNT/AgNP nanohybrids were characterized by transmission electron microscope (TEM) and STEM

Summary

Introduction

New multifunctional nanoparticle–nanotube hybrid systems, due to their unique and superior properties compared with their pure counterparts, increasingly forming the foundation of transformational developments in areas as diverse as electronics, photonics, catalysis, biotechnology, and energy storage among many other applications (Wu et al 2011; Mackiewicz et al 2008; Georgakilas et al 2007; Kong et al 2007; Li et al 2009). Abstract A novel colloidal method is presented to synthesize silver nanoparticles on aluminosilicate nanotubes.

Results

Conclusion