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Module 1: Overview of Nanotechnology

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So in essence, as a race we have reached this far, we have discovered fertilizers, we havediscovered weedicides, we have discovered insecticides, we have discovered several technologies,but now the time has come where we have to fine tune all of them.In last 100 years was one of the finest period for mankind to you know make this discoverystarting from Haber’s process to series of discoveries, all the way to recombinantDNA technology, introducing engineered various particles, genetically engineering the crops.Those are breakthroughs which human race has never seen earlier, yet we have reached thepoint where you have to think how we can now if we have read this part, how we can reallyprecisely use these tools, so the message what I wanted to put across to this lectureis, it’s one of the greatest thing what is happened, but now the time has come wherewe have to utilise each one of these tools.Whether it is a genetic engineering tool, we’ll be needing it how much over like thatour prerogative individual prerogative, but move on there is no way to look back, we willbe needing fertilizers there is no way, we have to resort to the newer technologies likehydroponics where you have use water resources to grow crops in cities.We may have to use our rooftops all over we have to use every possible space.Because we are living in concrete jungles, where we have to use are rooftop there isenough sun, we have to ensure the water, what we are utilising is getting purified, we cannotlook back, we have to use these chemicals, we have to use some of these insecticides,pesticides, yet what you have to do is that’s where comes that keyword what I was tryingto highlight is this word.Precision agriculture precise use and the domain of nanotechnology what we are goingto discuss for next 7 weeks, will highlight continuously to this point that how nanotechnologyor these tools can help in fulfilling the dream of precision agriculture for a muchmore sustainable healthy society.In terms of precision agriculture there will be a few things which will come very handyfor us to realise, one will be optimal use of chemicalsone concept.The second thing finding out ways more of a less half-life of these chemicals.So less half-life means faster they degrade and much more these compound should emulatenature, in other word nature produces antibiotics, nature itself does all these things, couldwe emulate them.So that those compound should not be an foreign body, we may use jack up the use of it slightlyexcess, but it should not come as something very foreign, something with nature has notseen.You do not want that to happen right.So if we play a judiciously then optimal use of chemicals, so I mention here having shortervery short half-life of these chemicals, we could emulate nature and we all looking forwardto is soil health has to be maintained through these water resources, clean healthy waterresources, third we have environmental in terms of clean environment.All these 3 things will lead to a sustainable living and when you talk about clean environmentI will add one more point maximizing agriculture, in terms of say taking the liberty of usingthis word urban agriculture where we are using the rooftops for agriculture, then maximizingagriculture by using hydroponics, hydro means water, ponics means plant growing in waterbodies.Then designing the buildings in order to harvest maximum sunlight, so as to grow as much cropyou can afford then more of the pot farming, small scale farming where you are controllingseveral parameters and you are supporting to sustainable living and all these thingsare eventually a part of precision agriculture where nanotechnology can play a very big role.So as we will walk through this course you realize that these are the key points whereour discussion will continuously have round, how we can maximize our productivity yet notdestroying the soil, not contaminating the water resources and yet keeping environmentclean and yet on the country maximizing the agriculture.So with this I will be closing for the first week and in the next week we will talk aboutthe nanotechnology, the basics of nanotechnology, synthesis, formulations, characterisationand evaluation methods Thank you.