IIT Guwahati’s chitosan-based gel selectively removes oil or water 

Researchers at IIT Guwahati have chemically modified the chitosan to make it selectively remove either oil or water phase from an oil-water mixture. In a first, they made it possible to switch liquid repellence of the material from extremely water-repelling to extremely oil-repelling and vice versa. A natural biopolymer, chitosan (a kind of polysaccharide obtained from … Continue reading IIT Guwahati’s chitosan-based gel selectively removes oil or water 

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Podcast: Removing oil from water using aloe vera

Uttam Manna of IIT Guwahati explains how his team synthesised an extremely oil-repelling (super oleophobic) membrane using an aloe vera gel-based coating modified with some molecules to remove oil from water. The membrane could be reused at least 25 times to separate light and heavy oil from water with the efficiency of separation remaining above … Continue reading Podcast: Removing oil from water using aloe vera

IIT Guwahati uses aloe vera to remove oil from water

IIT Guwahati researchers have synthesised an extremely oil-repelling (super oleophobic) membrane using an aloe vera gel-based coating modified with some molecules. This is the first time a naturally occurring material has been used for the said purpose. The membrane could be reused at least 25 times to separate light and heavy oil from water with … Continue reading IIT Guwahati uses aloe vera to remove oil from water

IIT Guwahati uses superhydrophobic cotton to remove oil-spill

Using superhydrophobic cotton Dr. Uttam Manna and his team were able to remove 95% of oil-spills, both light and heavy oils. The efficiency of absorption was above 2,000 weight percentage for both heavy and light oils. The superhydrophobic cotton was able to absorb oil from three complex phases, and could be used repetitively at least 100 times. Removing … Continue reading IIT Guwahati uses superhydrophobic cotton to remove oil-spill

IIT Guwahati team mimics nature to keep surfaces oil-free in water

By tweaking the composition, the researchers were able to make the coating highly oil-absorbing as well. Inspired by fish scales that exhibit excellent property to remain oil-free even when the water is contaminated with oil, scientists at the Indian Institute of Technology (IIT) Guwahati have developed a special kind of superior oil-repulsive (oleophobic) coating. When … Continue reading IIT Guwahati team mimics nature to keep surfaces oil-free in water

IISER Thiruvananthapuram: Scooping out marine oil spills is now possible

The sorbent is able to absorb and congeal 16 times its own weight of oil. More efficient and quick absorption of crude oil from sea following marine spill has now become possible thanks to scientists from the Indian Institute of Science, Education and Research (IISER) in Thiruvananthapuram who have developed a hydrophobic sorbent that can … Continue reading IISER Thiruvananthapuram: Scooping out marine oil spills is now possible

IISER Thiruvananthapuram researchers can scoop out marine oil-spills

Recovering marine oil-spills may soon become simple, efficient and cost-effective thanks to a compound (gelator) developed by researchers at the Indian Institute of Science Education and Research (IISER) Thiruvananthapuram. A team led by Dr. Kana M. Sureshan from the School of Chemistry used glucose as a starting material and through several chemical reactions produced compounds … Continue reading IISER Thiruvananthapuram researchers can scoop out marine oil-spills

Indian researchers’ membrane to solve marine oil spills

Researchers from the Indian Institute of Science Education and Research (IISER) Pune, the Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar and the National Chemical Laboratory (NCL), Pune have developed a membrane with exceptional hydrophobic and extremely high oil-loving (oleophilic) properties.  The membrane can potentially be used for tackling the globally challenging issue of marine … Continue reading Indian researchers’ membrane to solve marine oil spills