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  • This scientific advancement describes a novel aerogel material with promising properties for radiative cooling applications

  • The aerogel is surprisingly made from gelatin and DNA.

  • It surpasses 100% solar reflectance, leading to exceptional radiative cooling. This means it reflects more than all the sunlight hitting it.

  • The material is biodegradable, making it an environmentally friendly solution.

  • Under high solar radiation, the material can cool the surrounding temperature by 16 degrees Celsius.

  • The combination of DNA and gelatin forms a unique layered structure. 

  • This structure with its specific fluorescence and phosphorescence properties is responsible for the high reflectance and cooling effect.

  • The average visible light reflectance is an impressive 104.0%.

  • Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure


  • Thermal Insulation: Due to their excellent insulating properties, aerogels are ideal for applications where minimizing heat transfer is crucial like Building insulation, Aerospace applications

  • Filtration: The high surface area of aerogels makes them excellent candidates for filtration applications like Capture airborne particles, Water filtration

  • Aerogels are still under development, and some applications face challenges like high production costs



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Aerogel UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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