Papers – Page 49 – TechConnect Briefs

Evaluation of the Potential Synergistic Antimicrobial Effects Observed using Various Combinations of Chemical Agents (Nanoparticled and Non-Nanoparticled) on a Selected Panel of Cheese Derived Microorganisms

O’ Callaghan K.A.M., Kerry J.P., University College Cork, IE

The aim of the this study was to examine the antimicrobial effectiveness of a number of agents (nanoparticled and non-nanoparticled) applied individually and in combination to cheese derived cultures to determine their suitably as active [...]

CO2 reforming of CH4 by the combination of dielectric barrier discharge plasmas and zeolite catalysts

Nguyen H.H., Kim K.S., Kangwon National University, KR

Dry reforming of two green-house gases (CH4 and CO2) to convert to syngas (mixture of CO and H2) has gained deep research interests lately. Several technologies were proposed to convert the CO2 and CH4, such [...]

Development of a Platinum Nanoparticle based Microcombustor Power Device

Bakrania S., Rowan University, US

Microcombustors coupled with thermoelectric devices have the potential to provide a prolonged power source for portable devices as opposed to conventional batteries due to significantly higher energy densities. Recharging then can be easily achieved by [...]

A Comparative Study on Sorption of As (V) ions on Hematite, Goethite and Magnetite Nanoparticles

Adegoke H.I., Adekola F.A., Fatoki O.S., Ximba B.J., University of Ilorin, NG

Hematite (-Fe2O3), magnetite (Fe3O4) and goethite (-FeOOH) nanoparticles were synthesized by transformation of ferrihydrite and precipitation methods, this materials were used for the removal of arsenic (V) ions from aqueous solution. The synthesized nanoparticles were [...]

Monodisperse Thermo-responsive Composite Microgels with Core-shell Structure based on Au@Ag Bimetallic Nanorod as Core: Fabrication and Application in SERS Substrate

Dong X., Zha L.S., Donghua University, CN

In summary, monodisperse Au@Ag bimetallic nanorod is encapsulated by crosslinked poly(N-isopropylacrylamide) (PNIPAM) to produce thermo-responsive composite microgel with well-defined core-shell structure (Au@AgNR@PNIPAM microgel) by seed-precipitation polymerization method using butenoic acid modified Au@AgNRs as seeds. Their [...]

Rapid and Controlled Transition of Magnetic Nano- to Micro-particles: A Useful Feature for Bioseparations

Nehilla B.J., Schulte T.H., Nexgenia, Inc, US

This work describes the use of stimuli-responsive polymers to control the transition of magnetic nanoparticles (mNPs) to magnetic microparticles. Compared to magnetic microparticles, mNPs are advantageous for bioseparations (e.g., immunoassays, immunoprecipitations) for two reasons. They [...]

Toxicity and Pharmacokinetics of uPAR-targeted Human ATF-conjugated Iron Oxide Nanoparticles Following Systemic Delivery in Rhesus Monkey

Chen Y., Gao F., West China Hospital, Sichuan University, CN

Increasing evidence support the potential of a novel cell surface receptor-targeted MRI nanoprobe produced by conjugating a recombinant peptide amino-terminal fragment (ATF) of urokinase plasminogen activator (uPA) to magnetic iron oxide nanoparticles (IONP) in targeted [...]

Round Monodisperse Nanodiamonds: Towards Highly Bright, Biologically Inert Probes for Fluorescence Imaging

Rehor I., Slegerova J., Havlik J., Stursa J., Petrakova V., Turner S., Van Tendeloo G., Dai L., Richter J., Fiserova A., Cigler P., IOCB AS CR, CZ

Fluorescent nanodiamonds (FNDs) are extremely promising luminescent probes and sensors in biomedical research, possessing unique properties such as absolute photostability and high biocompatibility. Here we present a complex route towards bioapplicable FNDs. First we developed [...]

Controllable Synthesis of Monodisperse CaF2 microsphere and the investigation on luminous performance of CaF2:Ce3+/Tb3+

Sun Q., Sun X., Hu X.Y., Fan J., Zhan S.C., Wang Y., Wang Z.Z., Wang Y., Wang Z.Z., Sun Q., Sun X., Hao Y.Y., Northwest University, CN

Highly uniform and well-dispersed CaF2 microsphere and hollow spheres with tunable particles size (100nm-900nm) have been successfully synthesized by a facile hydrothermal process using ethylenediaminetetraacetic acid disodium as a complexing reagent. The XRD results indicated [...]

Green, Cubic Y2O3: Tb3+ Nanospheres: Synthesis and Photoluminescence Property

Miao H., Hu X.Y., Sun Q., Sun X., Wang Z.Z., Sun Q., Sun X., Zhang D.K., Bai J.T., Hou X., Northwest University, CN

Tb3+-doped Y2O3 green nanospheres were prepared via the simple, cost-effective urea homogeneous precipitation method without additives. Nanospheres were characterized by X-ray diffraction, Scanning electron microscope, Photoluminescence spectroscopy. The specimens annealed above 800oC are well matched [...]