Essay On Nanoparticles

We are currently in the process of finding magnetic properties of iron and nickel samples for their use and application in small-scale electronic and magnetic storage devices. I have presented posters on my findings in postern form which I carried at Cornell University and on the Methodology of Elemental Analysis Lab in Food and Drug Administration (Arsenic in rice speciation) at the Undergraduate Research Day at Queensborough Community College.

Using of spinel ferrites nanoparticles in electromagnetic devices such as memories, sensors and data storage in modern information technology applications [1-3] made many researchers all over the world do all efforts for synthesis and development of magnetic nano-particles. These nano-particles possess special magnetic and electrical properties with high

Synthesis of OA-Fe3O4 NPs: OA-Fe3O4 NPs were prepared following the literature method [36]. For the synthesis of OA-stabilized Fe3O4 NPs, Fe(acac)3 (2 mmol), 1,2-hexadecanediol (10 mmol), oleic acid (5 mmol), oleylamine (6 mmol), and benzyl ether (20 mL) were mixed and magnetically stirred under

Ferrocene is an organometallic iron compound with a pentagonal anti-prismatic "sandwich" structure. Due to its high-symmetry sandwich structure, ferrocene has a number of interesting chemical and physical properties. This compound is widely used in chemistry, biology and pharmacology, both in industry and in scientific research. For ferrocenes, three main types of transformations are characteristic: the replacement of five-membered ring hydrogens, the oxidation at the iron atom, and the breaking of the bond between iron and cyclopentadienyl rings. The process of oxidation of ferrocene on the iron atom is reversible and proceeds without noticeable changes in the geometry of the cation-radical particle in comparison with the original neutral

In addition, ferricyanide is toxic with LD50 value equal to 6400 mg/kg.4 Potassium ferricyanide salt has been isolated as ruby-red crystals and is photosensitive.5 Potassium ferricyanide has the ability to react with metallic silver to produce silver ferrocyanide, which is used in photography processes.5 Since potassium hexacyanoferrate(III) is a cyanide, it reacts explosively with sodium nitrite and oxidizes ammonia explosively. Acids, in particular strong acids react with potassium ferricyanide to form ferricyanic acid, which decomposes to form toxic hydrogen cyanide.

Iron (as Fe2+) concentrations of 40 μg/litre can be detected by taste in distilled water. In a mineralized spring water with a total dissolved solids content of 500 mg/litre, the taste threshold value was 0.12 mg/litre. In well-water, iron concentrations below 0.3 mg/litre were characterized as unnoticeable, whereas levels of 0.3–3 mg/litre were found acceptable

Matter is defined as anything that occupies space and can be perceived by one or more senses; a physical body, a physical substance, or the universe as a whole. There are four distinct states of matter: solids, liquids, gases, and plasma. There are other states of matter such as Bose-Einstein condensates and neutron degenerate matter, but those states can only be found under extreme conditions.

As magnetite is well-researched, multiple factors influence the formation of iron oxide magnetosomes have been identified. The most important factors are the presence of oxygen, and substrates in the form of nitrogen oxides (Bazylinski 2004). MORE

Magnevist is a contrast agent that is widely being used in the field of Magnetic Resonance Imaging. The composition of Magnevist is each ml contains 0.5 mmol gadopentetate dimeglumine. The report intends to detail to a great extent and making the detail relevant to the topic. Magnevist is a gadolinium-based contrast agent. Gadolinium is a rare earth metal with symbol Gd and it has an atomic number of 64. Gadolinium has few unique properties which are one of the main reason for being used as an MRI contrast agents. They are as follows:

Nanotechnology is the development of atoms in a certain object. Nanotechnology has become very popular in the past few years. It is a way to rebuild the systems of life. To make systems move faster than ever before. Nanometer is about 10 times the size of an atom. Each of these has a huge effect on a system. Still there are questions out there that keep people wondering how important nanotechnology is to us. Many wonder how will it affect them and if we should continue this research. I myself wondered about nanotechnology. After researching this topic I have learned new and interesting facts to help me understand the entire concept.

The Drude model can explain the Thermal Conductivity in metals and Electrical Conductivity of metals.

Jeremy Rifkin wrote, in his article Biotech Century: Playing Ecological Roulette with Mother Natures Design, "Humans have been remaking the Earth for as long as we have had a history." Well the path of history humans have chosen to take also affects how we remake the Earth. In Neal Stephensons novel, The Diamond Age, one is shown how the technology of the time reshapes the political, economical and educational aspects of history. That technology is the manipulation of molecules into atomic-sized machines called nano-machines. Stephenson brilliantly shows how such a powerful and truly revolutionary technology like nanotechnology could change life, as we now know it, or they in the future know life. Nanotechnology, as

When it comes to nanotechnology order is everything. By having the true order and orientation of genomes, scientists are able to have a new understanding of the human DNA which is crucial in the treatment of gene-mutating diseases. Researchers from Virginia Commonwealth University led by physicist Jason Reed, Ph.D., are on course to transforming the way biologists diagnose and discover disease-causing mutations after developing a new nanomapping tech.

Abstract: The iron in natural water was determined by utilizing spectrophotometric analysis. That was done by measuring the absorbance of five Fe(oPH)2+3 standards at 510 nm. From that information, a calibration curve was plotted and used to find the amount of Fe2+ that was in two unknown water samples based on the absorbance readings obtained with them at 510nm. The equation of the line was found to be y=0.1765x + 0.0705. It was then determined that there was no iron present in water sample A, while for water sample B, the iron was present in the proportions of 0.9037ppm, 1.614x10-5M and 9.037x10-3%.

In the case of inorganic silica nanoparticle, there are two general approaches for surface modification to drug delivery through the BBB. First, hydrophilic Silica surfaces can be coated by hydrophobic ORMOSIL (organically modified silica) to cross the BBB after administration in blood circulation [74]. For instance,