Nanografi Nanotechnology

Barium Titanate Nanoparticles/Nanopowder Properties  and Applications                                                                                                     Barium Titanate is a white colored inorganic chemical compound with the chemical formula BaTiO 3.  It was discovered in 1945 and because of its mechanical and chemical stability and good electrical properties a lot of research have done on this chemical. Barium Titanate has a cubic structure and it is a member of a large group of compounds with general formula ABO 3 which is called the perovskite family and it is the first discovered ferroelectric perovskite. Nanoparticles/Nanopowder of Barium Titanate and the Application Areas There are ...

Barium Carbonate and It’s Properties                                            Barium carbonate (BaCO3) , which consists of Barium, Carbon and Oxygen atoms and known as Witherite, is an important material in industry for producing barium salts, pigment, optical glass, ceramic, electric condensers, as well as its close relationship with aragonite, biomineral and its use as a precursor for magnetic ferrites and/or ferroelectric materials. Nanoparticles/Nanopowder of Barium Carbonate Nanostructural materials have become attractive because of their unique characteristics that can hardly be obtained from conventional bulk materials owing to their  quantum  size and surface effects. Barium Carbonate Nanoparticles/ Nanopowder like other  nanoparticles/nanopowder  are used many different areas. Barium Carbonate Nanoparticles/ Nanopowder are suitable for usi...

Drug delivery  technology  has received considerable attention in the past few years in the field of biomedical nanotechnology. Drug delivery implies that the approaches, technologies, process and systems for transporting a pharmaceutical compound in the body as needed. Drug delivery system is related with the quality, quantity and duration of drug presence. It is also concerned with scientific site of pharmaceutical compounds within the body. That means proper drug delivery system must transport pharmaceutical compounds with proper quantity into the accurate sites of the body. Drug delivery is often approached via a drug's chemical formulation, but it may also involve medical devices or drug-device combination products. Image retrieved from:  http://trialx.com/curetalk/2012/10/17/nanotechnolo... Silicon (Si)  is a biomaterial, one of the most frequent elements in the earth’s crust. A range of methods can be applied for the fabrication of porous Si, such as ch...

Nanoparticles/Nanopowder  start to be very popular over the last decade. What are these tiny materials? A nanoparticle/nanopowder (nanocluster or nanocrystal) means that a microscopic particle. It was at least one dimension less than 100 nm. Several area such as biomedical, optical, and electronic fields use these materials in wide variety of potential applications. Current several scientific research mainly concentrated on these materials. Since their size are nearly nanoscale and as the percentage of atoms at the surface of a material becomes significant the properties of materials change. Moreover, when it was compared with the bulk material,  nanoparticle/nanopowder  exhibits a number of special properties. Another key property is that nanoparticles/nanopowder have a very high surface area to volume ratio.Thanks to this property, nanoparticles/nanopowder have a tremendous driving force for diffusion ability, especially at elevated temperatures. They also have unique ...

General Information about Iron                                          Iron  is a chemical element with symbol Fe and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. Iron exists in a wide range of oxidation states, -2 to +7, but +2 and +3 states are the most common. Iron metal has been used since ancient times, although copper alloys, which have lower melting temperatures, were used even earlier in human history. Pure iron is relatively soft, but is unobtainable by smelting because it is significantly hardened and strengthened by impurities. Iron chemical compounds have many uses.  Iron oxide  mixed with aluminium powder can be ignited to create a thermite reaction, used in welding and purifyi...

Aluminum Metal and It's Properties                                            Aluminum  is a silvery-white chemical element with symbol Al and atomic number 13. It's a soft, nonmagnetic and ductile metal. By mass, aluminum makes up about 8% of the Earth's crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust.  Aluminum  metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals. Aluminum  is remarkable for its low density and its ability to resist. Aluminum and its alloys are vital to the aerospace industry and important in transportation and building industries, such as building facades and window frames. The oxides and sulfates are the most useful compounds of  aluminum . Proper...