synthesized gold nanoparticles was centrifused at high speed. The pellet and supernatant liquid were separated. The pellet was again dispersed in milli-Q water. The synthesis of gum tragacanth gold nanoparticles was optimised temperature and reaction time. The effects of concentration of gum tragacanth (0.1 to 1%) and concentration of HAuCl4 (0.1 to 1 mM) on the synthesis of gold nanoparticle were studied. The synthesized AuNPs were stored in amber color vials at 4oC. The nanoparticle formulation showed
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important and keep growing fields on nanoscience‚ nanoengineering‚ and nanotechnology. Its to create new functional nanomaterials with a variety of sizes and morphologies such as ZnAl2O4 films‚ hydroxyapatite nanopowder‚ and calcium crbonate nanoparticles. These nanomaterials have widespread applications in drug delivery‚ tissue engineering‚ dental implant‚ bone substitute‚ sensors‚ photoluminescence‚ and mechanical properties. This themed issue includes some research articles covering important
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SYNTHESIS OF STRONTIUM HEXAFERRITE SUBSTITUTED WITH TITANIUM AND ZINC NANOPARTICLES BY SOL-GEL METHOD AND ITS CHARACTERIZATION BY PAVITRA THIRUCHELVAM SCHOOL OF ARTS AND SCIENCE TUNKU ABDUL RAHMAN COLLEGE KUALA LUMPUR 2012/2013 SYNTHESIS OF STRONTIUM HEXAFERRITE SUBSTITUTED WITH TITANIUM AND ZINC NANOPARTICLES BY SOL-GEL METHOD AND ITS CHARACTERIZATION BY PAVITRA THIRUCHELVAM A project report submitted to the School of Arts and Science in partial fulfilment of the requirement for the Bachelor
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NANOTECHNOLOGY IN AVIATION Israel Stephen U. Manigandan D. III Yr‚ Aeronautical Excel College Of Engg. & Tech ABSTRACT: In the aerospace industry‚ there is a great need for new materials which exhibit improved mechanical properties. Materials possessing high strength at a reduced mass and size make lighter aircraft with lower fuel consumption. The development of new materials with tailored properties is a primary goal of today’s materials science and engineering. This paper gives us a brief idea
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Introduction: Over the past three decades we have witnessed a tremendous amount of activity in the area of biosensors. Biosensors are small devices employing biochemical molecular recognition properties as the basis for a selective analysis. The major processes involved in any biosensor system are analyte recognition‚ signal transduction‚ and readout. Due to their specificity‚ speed‚ portability‚ and low cost‚ biosensors offer exciting opportunities for numerous decentralized clinical applications
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International Journal of Scientific & Engineering Research‚ Volume 4‚ Issue 4‚ April-2013 ISSN 2229-5518 Nanotechnology- Impacting in Life science and Technology . Dr.A Mohamed Sikkander Department of Chemistry‚ Velammal Engineering College‚ Chennai‚ Tamil Nadu‚ India Email:ams240868@gmail.com ABSTRACT One of the most pressing issues facing nanoscientists and technologists today is that of communicating with the non-scientific community. As a result of decades of speculation‚ a number
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citrate would change the colour of a gold solution. Meaning the hypothesis was: if more sodium citrate is added the nano particle size will increase and the colour of the gold solution will move towards the red end of the spectrum. Theory Nanoparticles are different colours because of the way the electron waves at the edge of the matter interact with the light spectrum. A change in particle size will change the colour of the matter; another factor which affects the colour is the shape the particles
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morphological features on the Nano scale especially those which have special properties stemming from their Nano scale dimensions. Nano materials is a term that includes all Nano sized materials ‚ including engineered Nano particles ‚ incidental nanoparticles and other Nano-objects like those exist in nature. The novelty of nanotechnology made architectural thinking become more secure‚ flexible and comfortable through Nano architecture applications: 1. Self-cleaning: Oleo phobic surfaces are resistant
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Researchers have identified the activity of Silver NPs exerted the antibacterial effect in two steps. First‚ they changed the membrane potential and reduced adenosine triphosphate (ATP) synthase activities‚ thus reducing the metabolism process. Secondly‚ they declined the subunit of the ribosome for tRNA binding‚ thus collapsing its biological mechanism. At the same time‚ they proved to be less toxic to mammal cells [26]. Silver NPs with a small size and enhanced surface area produce some electronic
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There are a number of diseases and medical problems which can be treated by taking different routes. It has become possible to treat certain conditions by delivering drugs or nutrients to the body with the help of liposomes. Liposomes are artificially engineered vesicles within a lipid bilayer. (Lee‚ 2006) There are various methods by which liposomes can deliver the needed substances. One of these ways is to create a PH gradient between the solution and the liposome. As the pH neutralizes the drug
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