Photoinduced force microscopy as a novel method for the study of microbial nanostructures

Davies-Jones, Josh, Davies, Philip R. ORCID: https://orcid.org/0000-0003-4394-766X, Graf, Arthur, Hewes, Dan, Hill, Katja E. ORCID: https://orcid.org/0000-0002-8590-0117 and Pascoe, Michael ORCID: https://orcid.org/0000-0002-7794-8970 2024. Photoinduced force microscopy as a novel method for the study of microbial nanostructures. Nanoscale 16 (1) , pp. 223-236. 10.1039/D3NR03499B

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Abstract

A detailed comparison of the capabilities of electron microscopy and Nano-Infrared (IR) microscopy for imaging microbial nanostructures has been carried out for the first time. The surface sensitivity, chemical specificity, and non-destructive nature of spectroscopic mapping is shown to offer significant advantages over Transmission electron microscopy (TEM) for the study of biological samples. As well as yielding important topographical information, the distribution of amides, lipids, and carbohydrates across cross-sections of bacterial (Escherichia coli, Staphylococcus aureus) and fungal (Candida albicans) cells was demonstrated using PiFM. The unique information derived from this new mode of spectroscopic mapping of the surface chemistry and biology of microbial cell walls and membranes, may provide new insights into fungal/bacterial cell function as well as having potential use in determining mechanisms of antimicrobial resistance, especially those targeting the cell wall.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Pharmacy Dentistry Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	2040-3364
Date of First Compliant Deposit:	4 December 2023
Date of Acceptance:	28 November 2023
Last Modified:	28 Mar 2024 13:32
URI:	https://orca.cardiff.ac.uk/id/eprint/164493

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