Sunday 7 March 2010

Nanotechnology in your kitchen

Nanotechnology

Scientists are exploring everything in both directions.i.e. moving from the macro molecules and particles to the smaller ones e.g. micro-scale and nano-scale till they reached the atom and its smaller protons , neutrons and electrons. Others are moving in the direction of bigger and bigger ones till they reached the study of the universe and its galaxies.
Our concern here is the nano-scale .Simply it means particles of nano-size. It has many applications and we are keen about its pharmaceutical applications.From the first sight it seems to be a complicated science but actually it is not.For examples , we know that the more surface area available for reaction the more the solubility of the compound or material. With soluble drugs we can increase its solubility by increasing its available surface area either by grinding or micronisation.The same concept is used in case of insoluble drugs but the ordinary methods of particle size reduction are not sufficient to reach that degree with which we can bring the insoluble drug into solution. The old fashioned method to achieve the needed solubility is to use surfactants but actually this is not real solubility , it is just suspending the small particles in the liquid phase. With the application of nano-technology principles they succeeded to achieve that without using surfactants by the conversion of the particles to the nano-size.What makes nanotechnology a complicated science is just its sophisticated and required devices from microscopes to the devices which can undergo that particle size reduction to be within the nano-scale.Nano-size particles can be achieved using sonication i.e. the use of ultra-sonic waves to strike bigger particles. As the particles reach the nano-scale size , it would be an easy method to bring them to the solvated state.I`m not going to go in details . I just want to give you and easy method that you can apply to make nano-particles in you kitchen and make a product that is said to have some anti-bacterial activity.Bye for now. See you later with that product.

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