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Showing posts from July, 2019

Juniper Publishers: Prostate Volume, Size Does Matter. Growth Dynamics...

Juniper Publishers: Prostate Volume, Size Does Matter. Growth Dynamics... : JOJ Urology & Nephrology     Juniper Publishers Abstract Background:  Analysis of prostatic growth has focused on the whole glan...

Juniper Publishers: Internet Computerized Adaptive Testing to Detect C...

Juniper Publishers: Internet Computerized Adaptive Testing to Detect C... : Psychologyand Behavioral Science International Journal   Juniper Publishers Abstract Objective:  Surveys are often conducted but rar...

Time Evolution of Structural and Magnetic Properties of Ni-Zn Nano Ferrite: An Opinion

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Abstract We give our view on the time evolution of structural, magnetic properties, cationic distribution in Ni 0.5 Zn 0.5 Fe 2 O 4  nano particles synthesized via sol gel auto combustion method. This distinctive study eventually provides an insight on most favorable synthesis time to get needed structural, magnetic properties needed for various applications eg- in heterogeneous catalysis, medical applications. Keywords:  Spinel ferrite; Time evolution of properties; XRD; Cation distribution; Magnetic properties Go to Opinion In spinel nano ferrites their synthesis procedure, particle size, crystallinity and allocation of cations on tetrahedral A and octahedral B site plays a key role in determining their physical properties [ 1 ]. To have precise control on properties, time associated with synthesis process becomes a key parameter and in this context real-time monitoring of properties is important as well [ 2 , 3 ]. Thus, time evolution of synthesis process...

Juniper Publishers: Internet Computerized Adaptive Testing to Detect C...

Juniper Publishers: Internet Computerized Adaptive Testing to Detect C... : Psychologyand Behavioral Science International Journal   Juniper Publishers Abstract Objective:  Surveys are often conducted but rar...

Liposome-Actuated Enzyme Systems: A Benchmark for Controlling Biomineralization

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Abstract Key to the realization of versatile nano structures are simple, efficient methods of synthesizing materials that mimic aspects of Biomineralization. Liposome-permeability that controls enzymatic reactions may provide blueprints for bio mineral design. Keywords: Biomineralization; Enzymes; Liposomes; Enzymatic control; Membrane permeability Go to Opinion Although it is difficult to overstate the importance of enzymes in biology, these famous macromolecules are also becoming more prominent in nano biotechnology. The appeal of enzymes to nano scientists is three-fold: first, it is a natural nano scale material; second, its capability to furnish high specificity and efficient chemical conversion (which is its main role in biology); and third, this ability to catalyst a large number of chemical reactions can be exploited in industrial processes, waste treatments, pharmaceutical products, and biosensors. Lipid vesicles (liposomes) are best known as the vehicles fo...

Plasmonics for Improved Photovoltaic Devices

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Abstract Several approaches have been adopted in the past for increasing the light absorption in photovoltaic solar cells. The introduction of a plasmonic layer of Ib metal nanoparticles (pure or embedded in a dielectric layer) has been recognized as a viable alternate approach for enhancing light absorption. The scattering from metal nanoparticles near their localized plasmon resonance seemed to be a promising way of increasing the light absorption in thin-film solar cells. Enhancements in photo current have been observed for a wide range of semiconductors and solar cell configurations. In this short note, a review of the experimental and theoretical progress that has been made in recent years, the basic mechanisms, and an outlook on future prospects in this area is presented. Go to Introduction A number of methods [1-3] have been adopted in the past for increasing the light absorption in photovoltaic solar cells. But, acceptance of the above methods became debatable ...

Fabrication and Applications of Metal-Ion-Doped Hydroxyapatite Nanoparticles

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Abstract Calcium hydroxyapatite (HAp) is the main inorganic component of natural bones. In this review, the crystal structure and fabrication methods of HAp were first introduced; then the synthesis and applications of metal-ion-doped HAp nanoparticles were mainly reviewed. HAp was usually synthesized through solid state reaction and wet chemical precipitation, of which the properties depended on the fabrication method. Due to its crystal structure, HAp can tolerate ion-exchange with a high amount of other ions without significantly affecting its lattice structure. Hence ion-exchange reaction of HAp has been used to remove heavy metal ions such as Pb 2+  or Cd 2+  in waste water or soils, and immobilize radioactive waste. The adsorption capacity depended on the crystallinity and specific surface area of HAp. Meanwhile other metal ions besides Ca can be introduced into HAp through ion exchange or co precipitation method to form metal ion doped HAp. Due to the presence of...