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Remote Learning Facilitated by MyScope Explore.
Micros Today
November 2021
Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, NSW 2006, Australia.
In response to the requirements imposed by the COVID-19 pandemic in 2020, we developed a remote learning undergraduate workshop for 44 students at the University of Newcastle by embedding scanning electron microscope (SEM) images of (Peacock) spiders into the MyScope Explore environment. The workshop session had two main components: 1) to use the online MyScope Explore tool to virtually image scales with structural color and pigmented color on spiders; 2) to join a live SEM session via Zoom to image an actual spider. In previous years, the undergraduate university students attending this annual workshop would enter the Microscopy Facility at the University of Newcastle to image specimens with SEM; however, in 2020 the Microscopy Facility was closed to student visitors, and this virtual activity was developed in order to proceed with the educational event.
View Article and Find Full Text PDFBioinspired Microstructured Polymer Surfaces with Antireflective Properties.
Nanomaterials (Basel)
September 2021
National Centre for Nano Fabrication and Characterization (DTU Nanolab), Technical University of Denmark, Ørsted Plads 347, 2800 Kongens Lyngby, Denmark.
Over the years, different approaches to obtaining antireflective surfaces have been explored, such as using index-matching, interference, or micro- and nanostructures. Structural super black colors are ubiquitous in nature, and biomimicry thus constitutes an interesting way to develop antireflective surfaces. Moth-eye nanostructures, for example, are well known and have been successfully replicated using micro- and nanofabrication.
View Article and Find Full Text PDFDo exaggerated chelicerae function as weapons or genitalia in a long-jawed spider? Functional allometric analysis yields an answer.
J Morphol
January 2021
Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, Michigan, USA.
From the elongated neck of the giraffe to the elaborate train of the peacock, extreme traits can result from natural or sexual selection (or both). The extreme chelicerae of the long-jawed spiders (Tetragnatha) present a puzzle: do these exaggerated chelicerae function as weapons or genitalia? Bristowe first proposed that Tetragnatha chelicerae function as a holdfast because these spiders embrace chelicerae during mating. This hypothesis has remained untested until now.
View Article and Find Full Text PDFSeven new species of Australian peacock spiders (Araneae: Salticidae: Euophryini: Maratus Karsch, 1878).
Zootaxa
March 2020
Entomology/Arachnology, Museums Victoria, 11 Nicholson Street, Carlton, VIC 3053, Australia..
Seven new species of the Australian peacock spider genus Maratus Karsch, 1878 are described from Victoria, South Australia, and Western Australia: Maratus azureus sp. nov., Maratus constellatus sp.
View Article and Find Full Text PDFUltra-dense, curved, grating optics determines peacock spider coloration.
Nanoscale Adv
March 2020
Zernike Institute for Advanced Materials, University of Groningen NL-9747AG Groningen The Netherlands.
Controlling light through photonic nanostructures is important for everyday optical components, from spectrometers to data storage and readout. In nature, nanostructured materials produce wavelength-dependent colors that are key for visual communication across animals. Here, we investigate two Australian peacock spiders, which court females in complex dances with either iridescent color patterns () or an approximately angle-independent blue coloration ().
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