G. Watson

Publications138
h-index30
Citations4,472
Highly Influential Citations56
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Natural bactericidal surfaces: mechanical rupture of Pseudomonas aeruginosa cells by cicada wings.
TLDR
Natural superhydrophobic surfaces are often thought to have antibiofouling potential, but when incubated on cicada wings, Pseudomonas aeruginosa cells are not repelled; instead they are penetrated by the nanopillar arrays present on the wing surface, resulting in bacterial cell death.
Biophysical model of bacterial cell interactions with nanopatterned cicada wing surfaces.
TLDR
A biophysical model of the interactions between bacterial cells and cicada wing surface structures is proposed, and it is shown that mechanical properties are key factors in determining bacterial resistance/sensitivity to the bactericidal nature of the wing surface.
Bactericidal activity of black silicon
TLDR
It is shown that the nanoprotrusions on the surfaces of both black silicon and D. bipunctata wings form hierarchical structures through the formation of clusters of adjacent nanoproTrusions, which generate a mechanical bactericidal effect, independent of chemical composition.
Determination of the spring constants of probes for force microscopy/spectroscopy
A direct, accurate and convenient procedure for calibrating the spring constants of probes used for force microscopy/spectroscopy is described. It amounts to deflecting an 'unknown' cantilever with a…
Wetting properties on nanostructured surfaces of cicada wings
TLDR
Investigating the wettability of forewings of 15 species of cicadas, with distinctly different wetting properties related to their nanostructures, offers insights into the diversity of nanostructure and how subtle small-scale changes may facilitate large changes in wettable.
Enhanced gametocyte formation in erythrocyte progenitor cells: a site-specific adaptation by Plasmodium falciparum.
TLDR
The data indicate that gametocytogenesis is enhanced in the presence of erythroid progenitors found within the bone marrow, and atomic force microscopy indicates that developing gametocytes undergo remarkable shifts in their erythrocyte membrane elasticity, which may allow them to be retained within theBone marrow until maturation.
Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate
TLDR
The jumping-condensate mechanism is shown to spontaneously clean superhydrophobic cicada wings, where the contaminating particles cannot be removed by gravity, wing vibration, or wind flow.
Natural nano-structures on insects—possible functions of ordered arrays characterized by atomic force microscopy
Naturally occurring nano-structures is a much-neglected, but potentially rich, source of products that meet specifications imposed by natural selection. While the pharmaceutical industry has long…
Imaging and force-distance analysis of human fibroblasts in vitro by atomic force microscopy.
TLDR
The present results, being supported by a qualitative model, suggest that the activated substrate acts as a preferential scavenger of cellular debris thus preventing the tip from biofouling, and will therefore promote low adhesion between tip and membrane.
Scanning force microscopy - Calibrative procedures for 'best practice'
Scanning force microscopy (SFM) is gaining rapidly in popularity as a convenient and versatile tool for characterising and manipulating a great variety of physical and biological systems. In spite of…
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