Repository logo
  • Log In
    New user? Click here to register.Have you forgotten your password?
University College Dublin
    Colleges & Schools
    Statistics
    All of DSpace
  • Log In
    New user? Click here to register.Have you forgotten your password?
  1. Home
  2. College of Engineering & Architecture
  3. School of Chemical and Bioprocess Engineering
  4. Chemical and Bioprocess Engineering Research Collection
  5. Cicada Wing Surface Topography: An Investigation into the Bactericidal Properties of Nanostructural Features
 
  • Details
Options

Cicada Wing Surface Topography: An Investigation into the Bactericidal Properties of Nanostructural Features

Author(s)
Kelleher, Susan M.  
Habimana, Olivier  
Lawler, J.  
Casey, Eoin  
et al.  
Uri
http://hdl.handle.net/10197/7457
Date Issued
2015-11-09
Date Available
2016-11-09T02:00:09Z
Abstract
Recently, the surface of the wings of the Psaltoda claripennis cicada species has been shown to possess bactericidal properties and it has been suggested that the nanostructure present on the wings was responsible for the bacterial death. We have studied the surface-based nanostructure and bactericidal activity of the wings of three different cicadas (Megapomponia intermedia, Ayuthia spectabile and Cryptotympana aguila) in order to correlate the relationship between the observed surface topographical features and their bactericidal properties. Atomic force microscopy and scanning electron microscopy performed in this study revealed that the tested wing species contained a highly uniform, nanopillar structure on the surface. The bactericidal properties of the cicada wings were investigated by assessing the viability of autofluorescent Pseudomonas fluorescens cells following static adhesion assays and targeted dead/live fluorescence staining through direct microscopic counting methods. These experiments revealed a 20-25% bacterial surface coverage on all tested wing species; however, significant bactericidal properties were observed in the M. intermedia and C. aguila species as revealed by the high dead:live cell ratio on their surfaces. The combined results suggest a strong correlation between the bactericidal properties of the wings and the scale of the nanotopography present on the different wing surfaces.
Sponsorship
European Research Council
Science Foundation Ireland
Type of Material
Journal Article
Publisher
American Chemical Society
Journal
ACS Applied materials and Interfaces
Volume
8
Issue
24
Start Page
14966
End Page
14974
Copyright (Published Version)
2015 American Chemical Society
Subjects

Bactericidal

Nanostructures

Cicada

Surface science

Topography

DOI
10.1021/acsami.5b08309
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
File(s)
Loading...
Thumbnail Image
Name

Kelleher_et_al_Cicada_Paper.pdf

Size

1.54 MB

Format

Adobe PDF

Checksum (MD5)

885cd3ff6cc42ffdbcc5a18b7f1c946f

Owning collection
Chemical and Bioprocess Engineering Research Collection

Item descriptive metadata is released under a CC-0 (public domain) license: https://creativecommons.org/public-domain/cc0/.
All other content is subject to copyright.

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Cookie settings
  • Privacy policy
  • End User Agreement