Synthesis of Ag/AgCl–mesoporous silica nanocomposites using a simple aqueous solution-based chemical method and a study of their antibacterial activity on E. coli--颗粒学报PARTICUOLOGY

Naik, B., Desai, V., Kowshik, M., Prasad, V. S., Fernando, G. F., & Ghosh, N. N. (2011). Synthesis of Ag/AgCl–mesoporous silica nanocomposites using a simple aqueous solution-based chemical method and a study of their antibacterial activity on E. coli. Particuology, 9(3), 243–247. https://doi.org/10.1016/j.partic.2010.12.001

Synthesis of Ag/AgCl–mesoporous silica nanocomposites using a simple aqueous solution-based chemical method and a study of their antibacterial activity on E. coli

Bhanudas Naik ^a, Vilas Desai ^b, Meenal Kowshik ^b, Vadakkethonippurathu Sivankutty Prasad ^c, Gerard Franklyn Fernando ^d, Narendra Nath Ghosh ^a *

a Chemistry Group, Birla Institute of Technology and Science Pilani, K.K. Birla Goa Campus, Zuarinagar, Goa 403726, India
b Biology Group, Birla Institute of Technology and Science Pilani, K.K. Birla Goa campus, Zuarinagar, Goa 403726, India
c Chemical Sciences & Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST-CSIR) Thiruvananthapuram 695019, Kerala, India
d School of Metallurgy and Materials, University of Birmingham, B15 2TT, UK

10.1016/j.partic.2010.12.001

Volume 9, Issue 3, June 2011, Pages 243-247

Received 8 October 2010, Revised 5 December 2010, Accepted 21 December 2010, Available online 22 April 2011.

E-mail: naren70@yahoo.com

Highlights

Abstract

Simple aqueous solution-based chemical methods have been developed for the synthesis of Ag/AgCl nanoparticle–mesoporous silica nanocomposites. Ag loading in the mesoporous silica was accomplished using a wet-impregnation method. The AgCl–mesoporous silica nanocomposite material (AgCl–mSi) was synthesized by using a ‘one pot’ method. Synthesized materials were characterized using X-ray diffraction, N₂ adsorption–desorption analysis and high-resolution transmission electron microscopy. Antibacterial activity of the synthesized materials was investigated against Escherichia coli (E. coli) using the conventional plate-count method. All the materials showed high antibacterial activity even when the percentage loading of Ag in the nanocomposite was as low as 10 wt%.

Graphical abstract

Keywords

Mesoporous; E. coli; Antibacterial; Silver nanoparticle; SBA-15

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