Day: 5 July 2025

Scientists have now found a way to harness a property known as structural coloration to create tunable color-shifting materials using tiny plastic beads that can be used for wearable sensors, anti-counterfeit tags, display technologies and even eco-friendly paints.   The colour of the peacock’s feathers change depending on how you look at it, varying between shimmering blues and greens.  Similar effect is observed in the radiant wings of a butterfly. These are not colors made from paint or pigment, but from the structure of the surface itself.   Researchers at…

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Scientists at the Centre for Nano and Soft Matter Sciences (CeNS), under the Department of Science and Technology, have developed a breakthrough pocket-sized sensor capable of detecting sulfur dioxide (SO©ü)—a dangerous air pollutant often referred to as a ¡°silent threat.¡±   The compact, low-cost device is engineered to identify even trace levels of SO©ü (as low as 320 parts per billion), surpassing the sensitivity of many current commercial gas sensors. ¡°This innovation can serve as a critical early-warning system in environments where exposure to sulfur dioxide poses severe health risks,¡±…

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