Nitrogen dioxide is toxic to humans when inhaled. Unfortunately, our noses get anaesthetised when exposed to low levels of nitrogen dioxide. This prevents us from sensing the otherwise acrid gas, creating a possibility for overexposure with harmful effects on health. This may lead to poisoning of the lung, which in some cases might prove to be fatal.
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Department of Materials Engineering
A recent study by Sourav Biswas, Goutam Prasanna Kar, and Suryasarathi Bose, from the Department of Materials Engineering at Indian Institute of Science (IISc) Bangalore has taken a step toward seeking the perfect shielding material. They have created a new material that has exceptional electromagnetic wave absorption capabilities in the microwave frequency, the frequency most often used by point-to-point communication devices.
Protecting organic devices against water vapour is a concern for many scientists. Organic devices are known to be highly reactive to atmospheric water vapour, a significant cause for their premature degradation. A successful solution was generated by a team of four researchers at the Department of Chemical Engineering in IISc. Using a polymeric nanocomposite, they have devised an efficient and economical barrier to protect organic devices.
Nature has inspired modern structural engineering in many ways, from Michael Phelps' shark-skin inspired swimsuit to birdlike airplanes. However, until now, engineers have mainly been restricted to the simpler natural architectural shapes that millennia of evolution have produced. Studying and mimicking natural structures allows us to profit from millennia of evolution and natural selection to create optimal designs. A research team led by Chandra Sekhar Tiwary and Professors Kamanio Chattopadhyay and Debiprosad Roy Mahapatra from the Indian Institute of Science (IISc), has shed light on fascinating details of seashell design that pushes the boundaries of nature-inspired architecture.
An Indo-US team of researchers have developed a cleaner way of producing graphene. This research may go a long way in producing graphene in industrial scale, with minimal impact on the environment.
With a growing elderly population in India
Graphene has allured researchers from a wide variety of fields in the last decade, owing to its interesting electronic, optical and thermal properties, mechanical strength, sensing capabilities etc. It is expected that the demand for graphene will grow significantly in the future. Now, researchers at the Indian Institute of Science have come up with an environmentally friendly way to create graphene at an industrial scale. This could facilitate production of graphene in industries with no hazards to the environment.
Researchers from the IISc have developed a new way to design thin, porous membranes that can be used for water filtration. By carefully mixing two polymers, and adding some nanostructures, they obtained membranes with ultra small holes in it. They have also shown that these membranes are more efficient in killing the bacteria commonly found in drinking water.