By a News Reporter-Staff News Editor at Life Science Weekly -- Researchers detail new data in Entomology. According to news reporting out of Kaohsiung, Taiwan, by NewsRx editors, research stated, "The effects produced by the condensation of water vapor from the environment in the various intricate nanoarchitectures occurring in the wing scales of several Lepidoptera species were investigated by controlled cooling (from 23 degrees C, room temperature to -5 to -10 degrees C) combined with in situ measurements of changes in the reflectance spectra. It was determined that all photonic nanoarchitectures giving a reflectance maximum in the visible range and having an open nanostructure exhibited alteration of the position of the reflectance maximum associated with the photonic nanoarchitectures."
Our news journalists obtained a quote from the research from National Sun Yat Sen University, "The photonic nanoarchitectures with a closed structure exhibited little to no alteration in color. Similarly, control specimens colored by pigments did not exhibit a color change under the same conditions. Hence, this method can be used to identify species with open photonic nanoarchitectures in their scales. For certain species, an almost complete disappearance of the reflectance maximum was found. All specimens recovered their original colors following warming and drying. Cooling experiments using thin copper wires demonstrated that color alterations could be limited to a width of a millimeter or less."
According to the news editors, the research concluded: "Dried museum specimens did not exhibit color changes when cooled in the absence of a heat sink due to the low heat capacity of the wings."
For more information on this research see: Color changes upon cooling of Lepidoptera scales containing photonic nanoarchitectures, and a method for identifying the changes. Journal of Insect Science, 2013;13():1-15. Journal of Insect Science can be contacted at: Univ Arizona, Library C327, Tucson, AZ 85721, USA (see also Entomology).
Our news journalists report that additional information may be obtained by contacting I. Tamaska, Natl Sun Yat Sen Univ, Inst Life Sci, Kaohsiung 80424, Taiwan. Additional authors for this research include K. Kertesz, Z. Vertesy, Z. Balint, A. Kun, S.H. Yen and L.P. Biro.
Keywords for this news article include: Asia, Taiwan, Kaohsiung, Entomology
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