The inaugural issue of Nature Nanotechnology asked

February 28th, 2009

Menu Nanotechnology Definition 1.Significance of Nanoscale 2.New Materials 2. 1Nanomaterials 2. 2Properties 3.Nanomaterial Science 3. 1In One Dimensions 3. 2In Two Dimensions Carbon Nanotubes Inorganic Nanotubes Nanowires Biopolymers 3. 2In Three Dimensions Nanoparticles Fullerenes Carbon 60 Dendrimers Quantum Dots 4.Applications 4. 1Current Cosmetics Composites Clays Coatings Tougher Tools 4. 2Shortterm Paints Remediation Fuel Cells Displays Batteries Fuel Additives Catalysts 4. 2Longerterm Nanotube Composites Lubricants Magnetic Materials Medical Implants Machinable Ceramics Water Purification Military Battle Suits 5.Carbon Nanotubes 5. 1History 5. 2Production Methods Arc Method Laser Method CVD Method Ball Milling Other Methods 5. 3Purification Methods Gas Phase Liquid Phase Intercalation 5. 4Dispersion 5. 5Functionalization 5.

Human hair fragment and network of singlewalled carbon nanotubes Image Jirka Cech It seems that size limitation of nanotechnology to the 1100 nm range, the area where sizedependant quantum effects come to bear, would exclude numerous materials and devices, especially in the pharamaceutical area, and some experts caution against rigid definition based on sub100 nm size. definitions revolve around the study and control of phenomena and materials at length scales below nm and quite often they make comparison with human hair, which is about 80,000 nm wide.

Another important criteria for the definition is the requirement that the nanostructure has special properties that are exclusively due to its nanoscale proportions. Next . The inaugural issue of Nature Nanotechnology asked researchers from different areas what nanotechnology means to them and the responses, from enthusiastic to sceptical, reflect variety of perspectives. Nanotechnology products that are on the market are mostly gradually improved products using evolutionary nanotechnology where some form of nanotechnology enabled material such as carbon nanotubes, nanocomposite structures or nanoparticles of particular substance or nanotechnology process Definition of nanotechnology So what exactly is nanotechnology?

Some definitions include reference to functional systems. In their ongoing quest to improve existing products by creating smaller components and better performance materials, all at lower the number of companies that will manufacture nanoproducts by this definition will grow very fast and soon make up the majority of all companies across many industries. We found good definition that is practical and unconstrained by any arbitrary size limitations source The design, characterization, production, and application of structures, devices, and systems with at least one novelsuperior characteristic or property. Next . Definition of nanotechnology So what exactly is nanotechnology?