Papers – Page 36 – TechConnect Briefs

Layer by layer polyelectrolyte encapsulation of satellite structured Fe3O4@SiO2-Au magnetic SERS probe for selective detection of food dyes

Sun Z., Jing C., Chinese Academy of Sciences, CN

In situ detection and identification of dyes from a complex chemical mixture presents a great challenge to analytical chemists. Au NPs were uniformly deposited on magnetic Fe3O4@SiO2 bead to form a core-satellite Fe3O4@SiO2-AuNPs (FSPA) hetero-nanostructure, [...]

Ionic liquid: an innovative medium for nanofabrication

Darwich W., Santini C.C., Gaillard F., Haumesser P.-H., université de lyon 1, CNRS UMR 5265, FR

Porous silicon (PSi) has been attracting a great attention as a breakthrough material with exceptional characteristics for microelectronics, layer transfer technology, solar and fuel cells, biomedicine, etc. Its properties can be modified by in introducing [...]

Magnetic exchange bias effect in Manganese Oxide Core-Shell Nanoparticles fabricated by inert gas condensation technique

Khan F.A., Bah M., Shah S.I., Department of Physics, Bangladesh University of Engineering and Technology(BUET), BD

Manganese oxide core-shell nanoparticles are fabricated by inert gas condensation technique. The as deposited samples are found to be amorphous in nature with random distribution of clustered particles. X-Ray Diffraction (XRD) and High Resolution Transmission [...]

Innovative gold nanoparticle patterning and selective metallization

Kooij E.S., Raza M.A., Poelsema B., Zandvliet H.J.W., Univ. of Twente, MESA+ Inst. Nanotechnology, NL

In this contribution we present a novel, simple, low-cost bottom-up method to enable patterned deposition of nanoparticles. Our approach does not require sophisticated equipment nor does it involve harsh chemical procedures. We show that pure [...]

Surface Chemistry of Metal Oxide Nanoparticles and Attachment of Metal Nanoclusters: Sensor, Optoelectronic, and Catalytic Applications

Whitten J.E., University of Massachusetts-Lowell, US

Metal oxide nanoparticles are surprisingly reactive, and some undergo changes in color or in their photoluminescence (PL) spectra upon reaction. In the latter case, visible emission arises from electron decay from surface related states, and [...]

Co0.5Fe2.5O4 nanoparticle biological impact – comparative study on environmental cellulolytic fungi

Oprica L., Andries M., Nadejde C., Creanga D., Alexandru Ioan Cuza University, RO

Cobalt ferrite magnetic nanoparticles (MNPs) were prepared by co-precipitation being further electrostatically stabilized in solution (particularly used in experimental cancer treatment through hyperthermia). We focused on the biological impact of MNPs following their release in [...]

Colloidal magnetite nanoparticles– cytotoxicity study on V79 lung fibroblast cells

Mihai C.T., Puscasu E., Secarescu L., Nadejde C., Gherghel D., Creanga D., Vochita G., Alexandru Ioan Cuza University, RO

Various bioeffects of nanoparticulate matter were reported in the last decades. Herein, we present colloidal magnetic nanoparticles (MNPs), yielded by chemical route, tested for cytotoxicty with focus on cell apoptosis and DNA fragmentation. Chinese hamster [...]

Magnetic Nanoparticles for Radio Frequency Hyperthermia: Preparation and Surface Functionalization Effects on Cellular Uptake

Gilliland III S.E., Carpenter E.E., Shultz M.D., McGuire VA Medical Center, US

Iron oxide nanoparticles have received sustained interest for biomedical applications as synthetic approaches are continually developed for precise control of nanoparticle properties. This work presents an investigation of parameters in the benzyl alcohol synthesis of [...]

Influence of Polyvinyl Alcohol (PVA) on Morphology and Encapsulation Efficiency of Polylactic Acid-Polyethylene Glycol (PLA-PEG) copolymer based Nanoparticle’s

Dixit S., Davis M.D., Singh S.R., Dennis V.A., Alabama State University, US

Polyvinyl alcohol is the most commonly used emulsifier in the formulation of NPs. Provides non-aggregating, emulsifying and adhesive properties to NPs and an interconnected network with the polymer at the interface which ultimately can affect [...]

Hybrid biosensor for the early diagnosis of breast cancer

Cho K., Chong S., Chong S., Park E., Lee J-H., Luminescent MD, LLC, US

A cost-effective and novel hybrid biosensor using the combination of antibody and DNA aptamer was developed for the early diagnosis of breast cancer. 1,1’-oxalyldiimidazle chemiluminescence (ODI-CL) was applied as a detector of the hybrid biosensor. [...]