Carole C. Perry
126 shared publications
Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, United Kingdom
Distribution of Articles published per year
(1999 - 2016)
(1999 - 2016)
Total number of journals
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Article 2 Reads 0 Citations Drop impact behaviour on alternately hydrophobic and hydrophilic layered bead packs Published: 01 June 2016
Chemical Engineering Research and Design, doi: 10.1016/j.cherd.2016.02.011
•Micron sized bead packs were created as soil analogues.•Water drop impacts were recorded on alternating hydrophobic and hydrophilic layers.•Liquid marbling was observed on hydrophobic top layers.•Higher impact speeds lead to a greater degree of liquid marbling.•Overall decrease in pinning velocity as the bead size increased. AbstractA high level of water repellency in soils has an impact on soil hydrology, plant growth and soil erosion. Studies have been performed previously on model soils; consisting of close packed layers of glass spheres (140–400 μm in diameter), to mimic the behaviour of rain water on water repellent soils. In this study measurements were performed on multi-layered bead packs, to assess the interaction of water drops impacting layers consisting of different hydrophobic and hydrophilic layers. A high speed video camera was used to record the impact behaviour of water droplets on the bead packs focussing on the spreading of the droplet and the subsequent rebound behaviour of the droplet. Observations were made from the videos of the liquid marble effect on the droplet, whereby hydrophobic particles form a coating around the droplet, and how it differed depending on the arrangement of hydrophobic and hydrophilic layers within the bead pack. The droplet release height was varied in order to establish a relationship between impact velocity and the degree to which liquid marbling occurs, with higher impact speeds leading to a greater degree of liquid marbling. Measurements were also made to find the transition speeds between the three rebound conditions; rebound, pinning and fragmentation, showing an overall decrease in pinning velocity as the bead size increased.
DATASET 0 Reads 0 Citations The Self Assembly of Superhydrophobic Copper Thiolate Films on Copper in Thiol Solutions Published: 01 January 2016
nano Online, doi: 10.1515/nano.0048.00060
Article 0 Reads 2 Citations Plastron Respiration Using Commercial Fabrics Published: 16 January 2014
Materials, doi: 10.3390/ma7010484
A variety of insect and arachnid species are able to remain submerged in water indefinitely using plastron respiration. A plastron is a surface-retained film of air produced by surface morphology that acts as an oxygen-carbon dioxide exchange surface. Many highly water repellent and hydrophobic surfaces when placed in water exhibit a silvery sheen which is characteristic of a plastron. In this article, the hydrophobicity of a range of commercially available water repellent fabrics and polymer membranes is investigated, and how the surface of the materials mimics this mechanism of underwater respiration is demonstrated allowing direct extraction of oxygen from oxygenated water. The coverage of the surface with the plastron air layer was measured using confocal microscopy. A zinc/oxygen cell is used to consume oxygen within containers constructed from the different membranes, and the oxygen consumed by the cell is compared to the change in oxygen concentration as measured by an oxygen probe. By comparing the membranes to an air-tight reference sample, it was found that the membranes facilitated oxygen transfer from the water into the container, with the most successful membrane showing a 1.90:1 ratio between the cell oxygen consumption and the change in concentration within the container.
Article 0 Reads 20 Citations Wetting considerations in capillary rise and imbibition in closed square tubes and open rectangular cross-section channe... Published: 13 February 2013
Microfluidics and Nanofluidics, doi: 10.1007/s10404-013-1145-5
Article 0 Reads 2 Citations Assembl y of Poly-3-Hexylthiophene Nano-Crystallites into Low Dimensional Structures Using Indandione Derivatives Published: 01 February 2013
Nanomaterials, doi: 10.3390/nano3010107
Conductive polymer poly-3-hexylthiophene (P3HT) needles were self-assembled using a second component (indandione derivatives) as a linking agent to enhance their long range alignment. The morphologies of the hybrid organic/organic materials were characterized by transmission electron microscopy (TEM). Both linear and branched structures could be produced, with the degree of branching depending upon the linker used. Incorporation of indandione derivatives broadened the UV absorbance band of P3HT without significant change to its photoluminescence. This hybrid material could open a promising avenue in photovoltaic applications due to its interesting morphologies and optical properties.
Article 5 Reads 11 Citations Effects of hydrophobicity on splash erosion of model soil particles by a single water drop impact Published: 08 January 2013
Earth Surface Processes and Landforms, doi: 10.1002/esp.3364