NANO- BIOSENSOR: AN APPROACH TOWARDS THE HERBICIDES DETECTATION
NANO- BIOSENSOR: AN APPROACH TOWARDS THE HERBICIDES
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Nano biosensor an approach towards the herbicides detectation

Published on: Mar 3, 2016
Published in: Education      
Source: www.slideshare.net


Transcripts - Nano biosensor an approach towards the herbicides detectation

  • 1. NANO- BIOSENSOR: AN APPROACH TOWARDS THE HERBICIDES DETECTATION NANO- BIOSENSOR: AN APPROACH TOWARDS THE HERBICIDES DETECTATION Mahendra Singh Ashawat*, Nilima Kanwar Hada, Aniruddh Singh --------------------------------------------------------------------------------------------------------------------------- The application of herbicides has become a controversial due to claims that some products can damage the environment and even get into the food chain. One of the reasons for the damage is the high toxicity and non biodegradability of herbicides. Herbicides are used to control unwanted plants e.g. weeds. Heavy applications of herbicides can leave environmentally unsafe residues in soil and water. Herbicides that are applied directly to the soil may be washed off the land into nearby bodies of surface water or may percolate through the soil to lower soil layers and groundwater. When this happens, the herbicides become a pollution hazard and are highly toxic to human beings and other organisms. Nano-biosensor may help farmers and research professionals to detect herbicides in soil and water samples. The biosensor is made of chlorophyll like chemical that can measure oxygen levels. This chemical produces oxygen in the presence of certain chemicals and light. In testing for an herbicide, a liquid sample is passed through the biosensor. If the sample contains an herbicide, it will react with the biosensor’s proteins and inhibit oxygen production. The electrode in the biosensor detects oxygen levels and sends the information to a computer that displays the data in graph form. Reading the oxygen levels from the data a researcher can determine if too much or too little of herbicides has been applied to the soil. The biosensor can also identify traces of chemical residues in a matter of minutes. If level of herbicide is much more than the limit, we can reduce the use of herbicides all together, using nanoparticles to attack the seed coating of weeds, which will prevent them from germinating. This approach will destroy the weed even when it is buried in soil, and will prevent them from growing even under the most favorable conditions. This method is more preferable to tilling and manual picking of weeds because of the costs incurred with such high maintenance methods. ----------------------------------------------------------------------------------------------------------------------*Laureate Institute of Pharmacy, Kothag, Dehra, Himachal Pradesh Ashawat M.S., Hada N.K., Singh Aniruddh Page 1