Issue 6, 2019

Nanoparticles affect bacterial colonies’ optical diffraction patterns

Abstract

It is increasingly being accepted that bacteria are able to alter their shape/colony pattern in response to adverse environmental conditions. Morphological adaptation of bacteria is known as one of their defence mechanisms against environmental stress/variations. As nanoparticles (NPs) have a unique capacity to induce a wide range of stresses to bacteria, we hypothesized that such NPs can affect the bacterial colony pattern. To test this hypothesis, we incubated a series of superparamagnetic iron oxide nanoparticles (SPIONs) with different physicochemical properties with bacterial colonies and probed the colonies’ diffraction patterns by laser. The diffraction patterns of Escherichia coli, Lactobacillus rhamnosus, and Staphylococcus aureus colonies were recorded using a laser. Our results revealed the formation of distinct bacterial diffraction patterns in response to SPIONs with various concentrations and surface chemistries. Our results may pave the way toward the development of new optical approaches for the high-throughput screening of bacterial-NPs/drugs interactions.

Graphical abstract: Nanoparticles affect bacterial colonies’ optical diffraction patterns

Article information

Article type
Communication
Submitted
19 Nov 2018
Accepted
06 Jän 2019
First published
07 Jän 2019

Nanoscale, 2019,11, 2594-2601

Nanoparticles affect bacterial colonies’ optical diffraction patterns

P. Sasanpour, A. Dilmaghani-Marand, H. Montazeri, S. Ivani, M. J. Hajipour and M. Mahmoudi, Nanoscale, 2019, 11, 2594 DOI: 10.1039/C8NR09332F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements