Nanografi Nanotechnology

Spinach and Carbon Nanotube for Detection of Explosives

Nanomaterials in Construction Industry Image retrieved from: http://irannano.org/filereader.php?p1=main_f60512bd610678bba2d5d4838b7f4c19.JPG&p2=pr_brand&p3=21&p4=2 In modern construction field, most common used materials are concrete, glass, steel and timbers.  By the help of the improvement in nanotechnology, materials at nano scale offer enhanced properties for construction purposes.  Because, nano-materials can suddenly exhibit different properties compared to macro-scale. For example, Carbon Nanotube, one of the important nanomaterials, indicates 150 times higher strength value and approximately six times lighter than steel.   Studies in nano composites for improvement in cement performance are very important for construction industry. The materials such as Nano-Titania (TiO 2 ), Carbon Nanotube, Nano Silica (SiO 2 ) and Nano-Alumina (Al 2 O 3 ) can be combined with cement. These materials a...

·          * French chemist Paul Emilie Lecoq de Boisbaudran found the element of Dysprosium in 1886. He obtained Dysprosium Rare Earth Element through separating it from Holmium Oxide . ·          * Dysprosium Rare Earth Element is also a rare earth metal which is included in Lanthanide element family. Dysprosium   Rare Earth Element's atomic weight is 162.50. ·          * Dysprosium Rare Earth Element is bright, soft and silvery-white element is considered to be mildly toxic and acts        stable in room temperature. Dysprosium Rare Earth Element’s reaction with air happens very slowly. ·          * Dysprosium Rare Earth Element can be found in different minerals. ·          * Since this Dysprosium Rare Earth Element is useful for neutron absor...

*In 1875 in Paris, Paul E. Lecoq de Boisbaudran discovered Gallium metal which has the chemical symbol of Ga. *Atomic weight of this silvery-blue metal is 69.723 and Gallium is included in other metals group.  *Gallium element is considered to be non –toxic and no important harmful effect has been detected in industrial usage.  *Gallium element is a silvery, glass-like, soft metal and in periodic table it is very close to nonmetals. Gallium is one of a few metals which have liquid form.  *Gallium melting point 29.76 °C . So, Gallium element is liquescent in room temperatures.  *Just like water, gallium also becomes larger when it freezes.  *Gallium material is very useful in Surgical Instruments Manufacturing and health applications. Gallium metal may also be used in different alloys.  *Gallium arsenide is a very important substance for the production activities of semiconductors.  http://nanografi.com/special-materials/gallium-99-99-metals-basis/ ...

It was known that diamonds are already one of the hardest natural substances. But if diamoınd combine with graphene, nanoparticles can be slippery and it can be useful if you want to reduce friction in a moving machine. Scientist showed that the combination of tiny bits of diamond and graphene that had superlubricity. This means that the friction between them and another object dropped to near zero. Reducing friction, or making things more slippery could have benefits beyond just making it easier for objects to move around. For example "nearly one-third of a vehicle's fuel energy is spent on overcoming engine, transmission, and tire friction." Reduce the friction, reduce the amount of fuel used. Diamond nanoparticles contact with the thin sheets of graphene and the graphene rolled up around the diamond nanoparticles, creating scroll or ball like structures. This specific structure makes the superlubricity possible right now, but researchers hope that they can e...

A wafer, also called a slice or substrate . It is actually a thin piece of semiconductor material, such as a crystalline silicon. It is mostly used in electronics for the fabrication of integrated circuits and in photovoltaics for conventional, wafer-based solar cells. The wafer serves as the substrate for microelectronic devices. Today silicon chips are everywhere. Some microfabrication process step like doping or ion implantation, etching, deposition of various materials, and photolithographic patterning are applied. . Finally the individual microcircuits are separated (dicing) and packaged. Wafers are formed of  highly pure (99.9999999% purity ), nearly defect-free single crystalline material.  Ultrabook devices, smartphones, tablets, high performance computing, data centers included this material.  Engineers automate factories and are embedded in automobiles and everyday devices. The most sophisticated processor can contain hundreds of millions or billions of tr...

http://nanografi.com/blog/carbon-nanotube-is-only-way-to-turn-your-big-dream-into-reality/ For the last decade, engineers and scientists have tried to use the unique properties of carbon nanotubes to create high-performance electronics devices that are faster or energetically more efficient. That means longer battery life and higher speed of electronic devices such as laptops, smartphones. Until now, silicon and gallium arsenide used in computer chips and personal electronics . Engineers from University of Wisconsin-Madison material science achieved current that's 1.9 times higher than silicon transistors. Michael Arnold who is head of this research team, said that "This achievement has been a dream of nanotechnology for the last 20 years,". Also he claimed that carbon nanotube transistors that are better than silicon transistors is a big milestone. As to extrapolations from single nanotube measurements, carbon nanotube transistors should be abl...