AI Article Synopsis
Article Abstract
In nature, some beetles can display bicolor on their elytra. In order to explore the bicolor mechanism, we experimentally studied the optical and structural properties of the Carabus lafossei beetle. We found a multilayer structure in the cuticle of the beetle. Due to the different multilayer thicknesses in different areas, the beetle displayed bicolor. Here, we provide another approach to fabricate bicolor by depositing the same multilayer stack on a substrate with different reflectances at different areas. In this paper, the substrate with different reflectances is achieved by prefabricating sculpted hexagons (SU-8) on a silicon substrate. By coating a (ZnS/MgF2)3.5 multilayer, the sculpted structure displays green color at the ridges (SU-8/silicon area) and yellow color at the basins (silicon area).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.52.007586 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structural Color of Partially Deacetylated Chitin Nanowhisker Film Inspired by Jewel Beetle.
Materials (Basel)
November 2024
Research Institute for Sustainable Humanosphere, Kyoto University, Uji 611-0011, Japan.
Article Synopsis
- Nanochitin is created from crab shells, a food waste product, and ongoing research explores its various applications.
- By sonicating nanochitin in water, short nanowhiskers are produced that self-assemble into a multilayered film, which can manipulate light to create bright structural colors.
- The film's structural colors can indicate freshness in food sensors and offer a sustainable alternative to dyes in cosmetics due to chitin's biocompatibility and non-toxic nature.
Yeasts, arthropods, and environmental matrix: a triad to disentangle the multi-level definition of biodiversity.
Sci Rep
August 2024
Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Turin, Italy.
Our understanding of the spread of yeasts in natural ecosystems remains somewhat limited. The recent momentum of yeast ecology research has unveiled novel habitats and vectors that, alongside human activities, impact yeast communities in their natural environments. Yeasts, as non-airborne microorganisms, rely on animal vectors, predominantly insects.
View Article and Find Full Text PDFAn efficient model for extracting respiratory and blood oxygen saturation data from photoplethysmogram signals by removing motion artifacts using heuristic-aided ensemble learning model.
Comput Biol Med
September 2024
Department of ECE, Kakatiya Institute of Technology and Science, Warangal, Koukonda, Telangana, 506015, India. Electronic address:
Patients with surgical, pulmonary, and cardiac problems, continual monitoring of Oxygen Saturation of a Person (SpO2) and Respiratory Rate (RR) is essential. Similarly, the persons with cardiopulmonary health issues, RR estimation is crucial. The performance of the ventilator assistance and lung medicines are evaluated using SpO2 and RR.
View Article and Find Full Text PDFA coupled mode theory based on Takagi-Taupin equations describing electromagnetic scattering from distorted periodic arrays is applied to the problem of light scattering from beetles. We extend the method to include perturbations in the permittivity tensor to helicoidal arrays seen in many species of scarab beetle and optically anisotropic layered materials more generally. This extension permits analysis of typical dislocations arising from the biological assembly process and the presence of other structures in the elytra.
View Article and Find Full Text PDFMulti-layer laser cutting of electrical steel sheets applied to electric machine laminations.
PLoS One
July 2023
Dept Materials Science & Engineering, The University of Sheffield, Sir Robert Hadfield Building, Sheffield, United Kingdom.
With the move away from fossil fuels, the importance of electric machines is increasing. This is particularly the case within major engineering sectors such as the automotive industry. There is therefore a need to further develop processes which will allow for the diverse range of machining operations and large volume manufacture which will be required to overcome the inherent challenges in making this transition.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!