Papers – Page 19 – TechConnect Briefs

Low-Temperature Synthesis and Characterization of Fe-Doped ZnO Nanocrystals

Parra-Palomino A., Singhal R., Perales-Perez O., Tomar M.S., University of Puerto Rico, PR

We present here our results on synthesis and characterization of bare and Fe-doped ZnO nanocrystals by a modified sol-gel method, which does not require annealing of the samples. Metal acetate solutions in 2-ethylhexanoic acid were [...]

Novel Acrylamide Assisted Polymeric Citrate Route for the Synthesis of Nanocrystalline ZrO2 Powders for Dental Applications

Vivekanandhan S., Venkateswarlu M., Rawls H.R., Satyanarayana N., Pondicherry University, IN

Zirconium oxide has been receiving importance because of its use in wide range of biomedical applications, which is due to its high mechanical strength, fracture toughness and bio-compatibility. Recently, nano structured zirconia powders exhibit enhanced [...]

Synthesis and Synterability of Hydroxyapatite-Coated Zirconia Nanopowders

Bondioli F., Cannillo V., Ferrari A.M., Manfredini T., Università di Modena e Reggio Emilia, IT

Hydroxyapatite (HAP), Ca10(PO4)6(OH)2, is a well-known and a valuable implant material with biocompatibility and bioactive properties. Full utilisation of the unique properties of hydroxyapatite bulk ceramics is, however, possible only after its proper reinforcement, i.e. [...]

Face Selective Adhesion of Gold Nanoparticles onto microcrystal of Cyclodextrin/Octanethiol Inclusion Compound Produced by Magnetron Sputtering

Barrientos L., Merchán J., Yutronic N., Jara P., Universidad de Chile, Doctorant Student, CL

This work describes the self-assembly of stable gold nanoparticles (AuNPs) on microcrystal faces of cyclodextrin inclusion compound (CD-IC). giving as result a supramolecular arrangement (Fig. 1). That was obtained by means of magnetron sputtering technique. [...]

Optimization of Magnetic Properties in Cobalt Ferrite Nanocrystals

Cedeño Y., Perales-Perez O., Roman F., Singhal R., Tomar M.S., University of Puerto Rico, Mayaguez Campus, PR

Among the various ferrite materials for magnetic recording applications, cobalt ferrite (CoFe2O4) possesses excellent chemical stability and good mechanical hardness. Furthermore, the large positive first order crystalline anisotropy constant has made this ferrite a promising [...]

The Effects of Nano Particles on the Leidenfrost Phenomenon

Huang C-K, Lin C.K., National Taipei University of Technology, TW

When small amount of liquid mass is deposited on a hot enough solid surface, the liquid may not evaporate rapidly as we expect. Instead, the liquid mass evaporates slowly with a vapor film beneath. This [...]

Synthesis and Characterization of Metallic Nanoparticles of Cu, Co and Cu-Co by Reactive Milling

Angeles-Islas J., Velasquez-Rodriguez C.G., Calderon H.A., ESFM-IPN, MX

The production of metallic nanoparticles by means of a mechanochemical process is reported. High energy mills are used. The reaction between powders and activated by ball milling involves metallic chlorides and Na in a protective [...]

Search of Troponins as Smart Biosensors for Point-of-care Detection of Acute Myocardial Infarction

Sharma R., Florida State University, US

Troponin molecules and their T, C and I subtypes have shown significance in early point-of-care assessment of acute myocardial infarction. Other slowly released proteins are Creatine kinase MB, Fatty acid-binding Protein and myoglobin. Conventional antibody-antigen [...]

Prevention of Coalescence Stage from Nuclei at Initial Growth of Thin Film by Substrate Rotation in Physical Vapour Deposition

Koh S.K., Lee J-H., Han Y.G., Cho J-S, Joo J.H., Kralkina E.A., P&I Corp., KR

A method of nanoparticle fabrication in physical vapor deposition was introduced. Metal were deposited on the powdery substrate which were stirred by rotors. Particle size and prodcuction rate of metal nano particles were controlled by [...]

A modified plasma arc gas condensation technique for the synthesis of tungsten oxide-based materials with various morphologies and structures

Su C.Y., LIn H.C., Yang Z.K., Lin C.K., National Taipei University of Technology, TW

Various nanoproducts including nanoparticles, nanorods, and nanowires have been prepared by a modified plasma arc gas condensation technique. By changing some parameters during the experiment, different kinds of products could be obtained. The results reveal [...]