Temperature Sensor from Butterfly wings

 

Wings as temperature sensor
Nanostructured Wings as temperature sensor

Many of the shimmering colors in a butterfly’s wings are produced not with pigments, like the melanin that tints our skin, but with nanostructures (pdf). The scales on their wings are patterned with nanoscale channels, ridges, and cavities made of a protein called chitin. Unlike pigments, which create color by absorbing some wavelengths of light and reflecting the rest, the nanostructures are shaped so that they physically bend and scatter light in different directions, sending particular colors back to our eyes. That scattering can also make the wing scales iridescent–meaning the color changes with the angle you see it from.

When heat, in the form of invisible infrared radiation, hits the chitin nanostructures, they expand, changing their shape and therefore the colors they display. Scientists at GE are working to harness this property to make hypersensitive thermal imaging sensors, useful for night vision. By coating the wings of a Blue Morpho butterfly with carbon nanotubes that magnify the effect, researchers there made an insect into a sensor that changes color when its temperature changes a mere 1/25th of a degree.

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ASIM MAHAKUL

Hello, I am Asim admin of this blog. An expert in Scientific Instrumentation (Analytical Instrumentation). My works are always associated with both Physics and electronics. Currently working on ARM based embedded systems for Optical(UV and Visible) and electrochemical spectroscopy (EIS). My M.Tech. Thesis was related to all these things. I had worked for a 8 bit microcontroller based standalone EIS (electrical impedance spectroscopy) device. I have Masters in Instrumentation engineering from NIT Kurukshetra,Haryana and Masters in Electronics Science from Sambalpur University, Odisha (Formerly Orissa/Utkal) Am also work for PHP MySQL AJAX based CMS design. i love blogging and coding(am not an expert).

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