logging in or signing up Welcomes You in NanoMaterial er.harshitdixit Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2314 Category: Science & Tech.. License: All Rights Reserved Like it (3) Dislike it (0) Added: January 07, 2011 This Presentation is Public Favorites: 5 Presentation Description No description available. Comments Posting comment... By: priyankadagar12 (9 month(s) ago) VERY GOOD PPT. I HAVE NEED IT SO PLZ SEND IT TO ME OR ALLOW ME TO DOWNLOAD Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Welcome You in The World Of NanoMaterial: Welcome You in The World Of NanoMaterialQuestion in your mind :-: Question in your mind :- ζ What is Nano? ζ What is Nanotechnology? ζ What is Nanomaterial?Nano :-: Nano :- Nano- (symbol n ) is a prefix in the metric system denoting a factor of 10 −9 or 0.000000001. It is frequently encountered in science and electronics for prefixing units of time and length, like 30 nanoseconds (symbol ns), 100 nanometers (nm) or in the case of electrical capacitance, 100 nanofarads (nF).Nano Particles: Nano Particles In one drop of blood approx. 1*10^9 np are present. 1 nanometer = 10^-9 meters OR 1 nanometer = 1 billionth of a meterRange Of Nano: Range Of NanoNanotechnology :-: Nanotechnology :- Nanotechnology , shortened to " nanotech ", is the study of the controlling of matter on an atomic and molecular scale. Generally nanotechnology deals with structures of the size 100 nanometers or smaller in at least one dimension , and involves developing materials or devices within that size. Nanotechnology has the potential to create many new materials and devices with a vast range of applications, such as in medicine, electronics and energy productionNanomaterial :-: Nanomaterial :- Any material having a structure that has been designed at the nanoscale Nanomaterials is a field which takes a materials science-based approach to nanotechnology. It studies materials with morphological features on the nanoscale, and especially those which have special properties stemming from their nanoscale dimensions. Nanoscale is usually defined as smaller than a one tenth of a micrometer in at least one dimension, though this term is sometimes also used for materials smaller than one micrometer.Slide 8: ψ :- The unit of nanometer derives its prefix nano from a Greek word meaning dwarf or extremely small. One nanometer spans 3-5 atoms lined up in a row. By comparison, the diameter of a human hair is about 5 orders of magnitude larger than a nanoscale particle ψ :- General Motors claims to have the first vehicle to use the materials for exterior automotive applications, in running boards on its mid-size vans ψ :- Nanomaterial - Nanoscale materials; materials with structural features (particle size or grain size, for example) of at least one dimension in the range 1-100 nm.Classification :-: Classification :- The Four Main Types of Intentionally Produced Nanomaterials :- · Carbon Based Materials · Metal Based Materials · Dendrimers · CompositesCarbon Based Materials :-: Carbon Based Materials :- These nanomaterial are composed mostly of carbon, most commonly taking the form of a hollow spheres, ellipsoids, or tubes. Spherical and ellipsoidal carbon nanomaterial are referred to as fullerenes, while cylindrical ones are called nanotubes. These particles have many potential applications, including improved films and coatings, stronger and lighter materials, and applications in electronics.Metal Based Materials :-: Metal Based Materials :- These nanomaterial include quantum dots , nanogold , nanosilver and metal oxides , such as titanium dioxide . A quantum dot is a closely packed semiconductor crystal comprised of hundreds or thousands of atoms, and whose size is on the order of a few nanometer to a few hundred nanometer. Changing the size of quantum dots changes their optical properties.Dendrimers :-: Dendrimers :- These nanomaterials are nanosized polymers built from branched units. The surface of a dendrimer has numerous chain ends, which can be tailored to perform specific chemical functions. This property could also be useful for catalysis. Also, because three-dimensional dendrimers contain interior cavities into which other molecules could be placed, they may be useful for drug delivery.Composites :-: Composites :- Composites combine nanoparticles with other nanoparticles or with larger, bulk-type materials. Nanoparticles, such as nanosized clays, are already being added to products ranging from auto parts to packaging materials, to enhance mechanical, thermal, barrier, and flame-retardant properties.Unique Properties :-: Unique Properties :- The unique properties of these various types of intentionally produced nanomaterial give them novel electrical, catalytic, magnetic, mechanical, thermal, or imaging features that are highly desirable for applications in commercial, medical, military, and environmental sectors . These materials may also find their way into more complex nanostructures and systems. As new uses for materials with these special properties are identified, the number of products containing such nanomaterial and their possible applications continues to grow.Advantages :-: Advantages :- Materials may be strong or ductile, but rarely both at once. The processing of copper into a nanostructure possessing different size grains produces a material that retains its high strength and ductility under deformation. Nanocrystalline materials are three dimensional(in large quantity) solids composed of nanometer sized grains, or crystallites. Because of their unique structure, which is characterized by ultrafine grains and a rather high density of crystal lattice defects, these material have extraordinary fundamental properties that could be exploited to make next-generation.Advantage over Medical Science: Advantage over Medical Science “Nano materials are used in Cancer Medicines” Nanomaterial based biosensors utilize the unique properties of biological and physical nanomaterial to recognize a target molecule and effect transduction of an electronic signal.Disadvantages of Nanomaterial :-: Disadvantages of Nanomaterial :- The biggest disadvantage is that Nanomaterial is actually Very expensive, so not everyone can buy or afford it. Many of the people in the world are aware of the advancements that various field have made since the introduction of Nanotechnology into the world. But little do they know of the hidden dangers and potential risks involved with Nanotechnology running under the carpet. In present time we can use many types of items which is made by nanomaterial, it is very dangerous for our environment.Nanomaterials :- A Health Hazard : Nanomaterials :- A Health Hazard Health hazards may be caused either due to direct used of products containing nanomaterials, or in the process of production or even accidentally. A big disadvantage for us is that research on the toxicity of nanomaterial is not taking place as fast as the material themselves are being developed and put to use. For example Lux, has conducted a research based on how nanomaterial currently used in day-to-day items like Soap, Sunscreen lotions, cosmetics etc will have an effect on our health.Disadvantages of Nanotechnology related to Privacy : Disadvantages of Nanotechnology related to Privacy Privacy is the other potential risk involved with Nanotechnology. As Nanotechnology deals with the designing of compact and minute devices, there are chances for more eavesdropping than that already exists. In midst of all these, it is very difficult to decide on the merits and demerits of the Nanotechnology. On one side, the Nanotechnology provides an amazing base for the world to advance in many of the key areas and on the other side, it itself poses as a potential risk by elaborating the possibilities of destruction of the whole world. Applications: Applications Since nanomaterials possess unique, beneficial chemical, physical, and mechanical properties, they can be used for a wide variety of applications. These applications include, but are not limited to, the following:Slide 21: Next-Generation Computer Chips Kinetic Energy (KE) Penetrators with Enhanced Lethality Better Insulation Materials Phosphors for High-Definition TV Low-Cost Flat-Panel Displays Tougher and Harder Cutting Tools Elimination of Pollutants High Energy Density Batteries High-Power Magnets High-Sensitivity Sensors Automobiles with Greater Fuel Efficiency Aerospace Components with Enhanced Performance Characteristics Better and Future Weapons Platforms Longer-Lasting Satellites Longer-Lasting Medical Implants Ductile, Machinable Ceramics Large Electrochromic Display Devicesmanufacturer and supplier of Nanomaterials in India....: manufacturer and supplier of Nanomaterials in India.... Intelligent Materials Pvt. ltd (Nickel Nano powder) S andeep [ Trading Company ] ( H1N1 face mask silver nano) Intelligent Materials Pvt. ltd (Silver Nano Powder) NANO CERA PVT. LTD[Manufacturer, Trading Company] (alumina ball)Thank You :-: Thank You :- By- Harshit Dixit Mechanical Engg. 0728540017 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.