Papers – Page 54 – TechConnect Briefs

SAPHIR – EUROPEAN PROJECT – Safe, integrated and controlled production of high-tech multifunctional materials and their recycling

The development of nanotechnologies appears to be a real innovative solution in order to improve existing technologies and create new products of the future. However, at the present time, the manufacture of nanostructured products is [...]

Biofunctionalization of laser-ablated gold nanoparticles

Riabinina D., Zhang J., Zhang T., Zhang J., Zhang T., Chaker M., Ma D., Tijssen P., Universite du Quebec, CA

For the first time, we investigated the biofunctional activity of gold nanoparticles prepared by nanosecond pulsed laser ablation in liquid media. This method allows the fabrication of gold nanoparticles surrounded by a metastable gold oxide [...]

Synthesis of novel ferrite foam materials for water-splitting application

Shende R.V., Puszynski J.A., South Dakota School of Mines & Technology, US

Globally increasing energy demands with reduced emission of greenhouse gases require the use of more sustainable energy sources. One of the technically viable sustainable energy technologies is based on the thermochemical water-splitting process utilizing redox [...]

Effect of Silica Nanoparticles on Rheological Properties and Gelation Temperature of Biodegradable Polymer Gels

Florián-Algarín V., Acevedo A., University of Puerto Rico-Mayagüez, PR

The discovery of new potent and insoluble drugs has emphasized the need for personalized dosages and novel drug-delivery systems. The use of biodegradable polymers is a good alternative to form films in which a solid [...]

Liquid crystals doped by magnetic nanoparticles

Kopcansky P., Tomasovicova N., Koneracka M., Zavisova V., Timko M., Tomco L., Dzarova A., Eber N., Fodor-Csorba K., Toth-Katona T., Vajda A., Jadzyn J., Institute of Exprimental Physics SAS, SK

The aim of this study was to investigate how the shape of magnetic particles dispersed in the liquid crystal influences the critical magnetic field of structural changes. The experiment showed parallel initial orientation between liquid [...]

DC and AC dielectric properties transformer oil based magnetic fluid

Timko M., Kopcansky P., Tomco L., Marton K., Koneracka M., Herchl F., Tomasovicova N., Institute of Exprimental Physics SAS, SK

The comparison of the AC-dielectric breakdown strength of transformer oil based magnetic fluid with pure transformer oil confirmed better insulating properties of magnetic fluid in external magnetic field. The better heat transfer properties provided by [...]

Formation of Ni/NiO core/shell nanostructures and their attachment on carbon nanotubes

Chopra N., Claypoole L., Bachas L.G., University of Alabama, US

We report a facile wet synthesis method coupled with microwave irradiation to successfully control the morphology of Ni/NiO core/shell nanoparticles. Furthermore, we report for the first time, microwave-based synthesis of hollow NiO nanostructures from Ni [...]

Synthesis and Characterization of Silver Nanoparticle Rings Embedded in Glass

Chen Y., Jaakola J., Ge Y., Säynätjoki A., Tervonen A., Hannula S-P, Honkanen S., Helsinki University of Technology, FI

Ion exchange technique with photolithography-patterned metal mask is used to form silver nanoparticle patterns embedded in glass. Optical transmission measurement is performed to characterize the optical properties of silver nanoparticles. Atomic force microscopy (AFM) of [...]

Control of Nanoparticle on Nanofiber via Magnetic Electrospinning

Chung M., Lan J.W., Lin H-Y, Suen T.W., Cheng S.H., Southern Taiwan University, TW

Nanoparticles added into nanofibers produced by electrospinning can expand the functions of such fibers, and these nanoparticles can serve as vehicle for drugs in active drug delivery concept. Depending on the toxicity of these nanoparticles, [...]

Impedance of Nanoparticles Embedded Electrospun Nanofiber

Chung M., Lan J.W., Lin H-Y, Suen T.W., Cheng S.H., Southern Taiwan University, TW

Electrospinning produces nanofibers with diameters ranging from 100-500 nm under 10-20 KV at 10-20 cm distances, and if these nanofibers were composed of polymers like PVA or PVP, they are usually nonconductive with resistances too [...]