nanoparticles – Page 17 – TechConnect Briefs

Intracellular Analysis by SERRS and Nanoparticles

Stevenson R., Senior L., Alexander J., Geboers M., Faulds K., Graham D., University of Strathclyde, UK

We report the first use of ‘bare’ nanoparticles as both a cellular delivery vehicle and a spectroscopic detection platform to enable surface enhanced resonance Raman scattering (SERRS) detection. We have shown how this approach can [...]

Innovative Nanoprobes for Multiparametric Magnetic Immunoassays: Elaboration and Characterization

Brioude A., de Beaucorps C., Alphandéry E., Benyettou F., Brioude A., Bonnin D., Weinmann P., Motte L., Lalatonne Y., Avicenne Hôspital, FR

Magnetic nanoparticles (MNPs) are commonly used for contrast enhancement in magnetic resonance imaging, as magnetic carriers in automated immunoassays instruments, or for cell concentration at the bench. They are being evaluated all over the world [...]

AuAg-alloy-nanoprobes for specific nucleic acid detection

Doria G., Larguinho M., Dias J.T., Pereira E., Franco R., Baptista P., CIGMH/DCV & REQUIMTE/DQ, PT

Due to their unique optical properties, noble metal nanoparticles, and in particular gold nanoparticles (AuNPs), have been extensively used for the development of new molecular diagnostic assays[1]. These optical properties derive from the characteristic surface [...]

Nanoparticle-coated nanosprings for diagnostic applications using SERS based detection

Sai V.V.R., University of Idaho, US

Significant enhancements in the SERS signals may be obtained with elongated arrangement of silver or gold nanoparticles. Silica nanosprings (NS) with high surface to volume ratio are promising candidate to yield such sensor materials. In [...]

Semiconductor nanoparticles in Photocatalysis: The Emerging Art and Perspectives

Sharma A., Sharma R., Sharma A., Sharma R., Sharma A., Sharma R., AKG College of Engineering, UPTU, IN

A principle of semiconductor nanophotocatalysis – a new trend in photochemistry deals with the photocatalytic redox-reactions with the participation of semiconductor nanoparticles. The origin of various size-dependent explanations in the semiconductor photocatalysis are spot light [...]

The magnetic properties optimization in diluted magnetic oxide semiconductor nanoparticles obtained by a modified co-precipitation approach in intrazeolitic networks

Bosinceanu R., Iacomi F., Al.I.Cuza, RO

Ferromagnetism in diluted magnetic semiconductors (DMS) has been a subject of great scientific and technological interest for the past few years due to its implications for spintronics, advanced magneto-optics and sensors applications. Our research involves [...]

Multifunctional Nanocomposite Systems

Das A., Dinglasan J., Loukine N., Anderson D., Vive Nano, CA

A method to produce multifunctional nanocomposite materials is presented. Polymer stabilized nanoparticles (e.g. hydroxides, oxides, metals, salts, etc.) are incorporated into a bulk inorganic matrix (zinc oxide/hydroxide, aluminum oxide/hydroxide, ferric oxide, silica, ceria, etc) through [...]

Nanopalladium – Wool: A Novel Fibre for Multifunctional

Fonseca-Paris C., Johnston J.H., Victoria University of Wellington, NZ

The development of new functional textiles based on composite materials of natural fibres and nanomaterials have become of increasing interest within both academic and industrial sectors. The inherent properties of their all precursor components can [...]

Direct Evidence of Nanoparticle Release from Epoxy Nanocomposites Exposed to 295 nm-400 nm UV Radiation

Nguyen T., Pellegrin B., Stutzman P., Shapiro A., Byrd E., Gu X., Chin J., NIST, US

Nanoparticles are increasingly used for enhancing multiple properties of polymers in many industries including construction, automobile, and aerospace. However, recent research suggests that nanoparticles might have negative effects on the environments and health safety. Since [...]

Role of Nanoparticles in Life Cycle of Nanocomposites

Gu X., Chen G., Zhao M., Watson S.S., Zhe D., Stutzman P.E., Nguyen T., Chin J.W., Martin J.W., NIST, US

This study is to investigate the role of ZnO nanoparticles in the life cycle of a waterborne polyurethane (PU) nanocomposite during UV exposure. The specimens were exposed to the NIST SPHERE (Simulated Photodegradation via High [...]