What is Nano Texturing? Nano basically means 10 raise to power nine It is smaller than a human red blood cell It is important to study small particles like micro size surface as in our world most reactions are taking place at atomic level so without the knowledge of smaller units we cannot study world One of the branch of Nano technology is Nano texturing Nano texturing is a technique to cover the micro size surfaces of materials with Nano sized materials This changes the properties of the material
There are many applications of this technique The micro size surface covered is water oil and microorganism repellent Nano texturing micro size surfaces causes water droplets to ball up and roll off without wetting the micro size surface Nano textured micro size surfaces are in various forms like cones, columns, or fibers These Nano cone textures are super hydrophobic also called super water hating Another advantage is that this technique reduces the friction by 88 percent The applications of Nano texturing are wetting properties optical properties and friction and lubrication The wetting properties of a micro size surface are dependent on its micro size surface tension and micro size surface texture. The texture enlarges the basic wetting property of a material. A hydrophobic material can be changed to obtain super-hydrophobic properties and a hydrophilic micro size surface gets even more hydrophilic after applying a texture This can be used for example to become super wetting micro size surfaces A nice application is when a needle for contact angle measurements was textured and subsequently coated with a single layer of a flour containing coating.
This coating in combination with the texture made the needles micro size surface super hydrophobic This way water was not permitted from wetting the needle micro size surface while performing measurements with the needle micro size Surface textures can change the absorption and reflection of light on the micro size surface This is used to reduce glare of a micro size surface Textures can be also used to change the properties of materials such as to reduce or increase the friction This property also has use in medical field as for example skin can become silky smooth and much more Besides all these applications we have invented many things by using this technique One such application is Nano surface covered gloves We can work with these gloves in water without getting them wet and also in mud without getting them dirty Ultra sound pulse is one of the most modern method to produce Nano textured surface It can be divided into two methods one is direct write process closely related to laser milling in which the focused laser spot can be used to remove material in a defined pattern for the production of micro size surface textures and the other is a method using self organizing effects that result from the laser material interaction when using ultra-short pulses It is a very broad field Work is being done in this field and it will soon be flourished in the world
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