Beilstein J. Nanotechnol.2022,13, 1345–1360, doi:10.3762/bjnano.13.111
iron. Therefore, biological external surfaces that strongly repel liquids appeared to be suitable, particularly the hair cover of the water fern Salvinia molesta and the surface of Collembola (an arthropod group). It turned out, however, that it was not feasible to realise the functional structures of
furnace; Collembola; gas/liquid interfaces; interfacial effects; persistant air layers; pits; Salvinia molesta; surfaces; tuyère failure; water transport in plants; xylem; Young–Laplace equation; Introduction and Motivation
The basic concept of biomimetics is the derivation of technical applications from
) and the skin structure of springtails (Collembola, see Figure 3) [3][21][22], both of which are known to accommodate gas layers.
Kariba weed (Salvinia molesta)
In the case of Salvinia molesta, stable water/air interfaces form at the tips of leaf hairs, which are topped by eggbeater-like structures
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Figure 1:
Left: Scheme of a typical blast furnace (picture from OpenStax, Blast Furnace Reactions, CC BY 4.0)...
Beilstein J. Nanotechnol.2017,8, 1714–1722, doi:10.3762/bjnano.8.172
springtails (Collembola) are superhydrophobic, but the mechanism has not been described in detail. Previous studies have suggested that overhanging surface structures play an important role, but such structures are not a universal trait among springtails with superhydrophobic cuticles. A novel wetting
. clavatus does not have overhanging surface structures. This large change in observed contact angles can be explained with a modest change of the three-phase line tension.
Keywords: springtails (Collembola); superhydrophobicity; three-phase line tension; Introduction
Collembola, a group of small
of and the mechanism behind natural water-repellent surfaces is therefore of great interest beyond the field of biology. Many natural surfaces feature hierarchical structures, which are difficult to reproduce biomimetically. Collembola cuticles feature surface structuring on a single, sub-micrometer
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Figure 1:
Imbalance of intermolecular forces for molecules near the three-phase contact line. The length of t...