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Showing posts from March, 2022

Role of Nanobiotechnology in Bioremediation

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 By Nisha Goyal Microbiology Department   Green technology, an approach for the removal/bioremediation of the pollutant, has been gaining interest over physical and chemical methods. The concept of nanotechnology for green and clean environment has expanded interest in various sectors due to its multidisciplinary approach. The utility of nanotechnology has been extended for the treatment of pollutant from a broad range of sector, e.g. dyes, pharmaceutical and medical. ·        REMEDIATION The clean up or removal of contaminants from the environment is “environmental remediation”. It uses various methods to remove and/or degrade environmental contaminants in polluted soil, surface water, ground water as well as in sediments. It involves two techniques:                                   I.           Ex situ: Removing the contaminated soil, sediment, or water from the polluted sites and then treating the pollution above ground.                                 II.           In situ:

Oumuamua

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     By Esha Chettri Physics Department    On 19 th   October 2017, the first interstellar object visited our solar system. It was later named “ ‘Oumuamua ” and was discovered by Robert Weryk. The fellow astronomer at the University of Hawaii at Manoa, spotted the intriguing object with the Panoramic Survey Telescope and Rapid Response System (Pan- STARRS1) in Hawaii.    ‘Oumuamua is a Hawaiian word that translated to “scout” is a well-suited name, the strange object is an emissary, a representative of some distant star system we do not know anything about. Prior to entering our solar system, it had been wandering the cold, empty depths of interstellar of the Milky Way for hundreds of millions, or perhaps billions of years, before encountering the sun.    ‘Oumuamua was originally classified as a comet but the observations later revealed no sign of cometary activity after it passed through the Sun on 9 th September 2017 at an incredible speed of 87.3 kilometres per second. It appear