nanostructures – TechConnect Briefs

Artificial Bacteriophage for Anticancer Drug Delivery

Velasco-Medina J., Espinosa-Duran J.M., Arce-Clavijo J.C., UNIVERSIDAD DEL VALLE, CO

In this work, we present a new nanodevice, called artificial bacteriophage, name inspired in the Bacteriophage T4. The nanodevice is made up of two carbon nanostructures and molecular bioreceptors: 1) the nanocontainer, made of fullerenes [...]

Highly Tunable Surface Plasmons Resonance Using Metal/metal Oxide Hybrid Nanostructures

Khosroabadi A.A., Gangopadhyay P., Norwood R.A., University of Arizona, US

Metal and metal oxide electrodes play a significant role in many cutting edge applications including photonics, membranes, biological supports, sensing, electrochromics, and in various green technologies, such as, photocatalytics, Li-ion batteries and photovoltaics. There is [...]

Polymer Nanostructure Approach for Photoelectric Solar Energy Conversions

Sun S., Norfolk State University, US

At materials molecular level, photoelectric/photovoltaic conversion corresponds to a photo induced electron transfer from a molecular electron rich donor entity to an electron deficient acceptor entity, and the process is also called photo induced exciton [...]

Flower-like TiO2 Nanostructures: Synthesis,Characterization and Photocatalytic Properties

Li Y., Liu E., Fan J., Fan X., Hu X., Liu E., Fan J., Fan X., Wu H., Ma Y., Tang C., Northwest University, CN

In this paper three-dimensional (3D) titania nanostructures assembled with rutile nanorods have been fabricated via a hydrothermal reaction route. The effects of preparation parameters including the reaction temperatures and the reactant concentrations, on the microstructure, [...]

Flower-like TiO2 Nanostructures: Synthesis,Characterization and Photocatalytic Properties

Li Y., Liu E., Fan J., Fan X., Hu X., Liu E., Fan J., Fan X., Wu H., Ma Y., Tang C., Northwest University, CN

In this paper three-dimensional (3D) titania nanostructures assembled with rutile nanorods have been fabricated via a hydrothermal reaction route. The effects of preparation parameters including the reaction temperatures and the reactant concentrations, on the microstructure, [...]

Alkali Halide Nanoclusters: Structure, Stability, Properties and Mechanism of Formation

Henkes A.V., Fantuzzi F., Nascimento M.A.C., Instituto de Química, Universidade Federal do Rio de Janeiro, BR

Results of accurate quantum-mechanical calculations for alkali halide nanoclusters (LiF, NaCl, KBr), revealed a variety of new morphologies - single and multiple tubes, double-sheets, honeycomb, sodalitic cages- quite distinct from the cubic macro crystal structure. [...]

Synthesis of nanocrystalline cubic ZrO2:Mn2+ phosphors: Structural and luminescent properties

Fernández-Osorio A., Ramos-Olmos L., Julian C.F., Universidad Nacional Autonoma de Mexico, MX

Nanocrystalline cubic zirconia doped with manganese, solid solutions of Zr1-xMnxO2-x/2 (x=0, 0.1, 0.2 and 0.4), were prepared by the sol-gel method. The Rietveld refinement of the X-ray powder diffraction (XRD) profile of the samples confirms [...]

Thermoelectric properties of molecular nanostructures

Kruchinin S.P., Bogolyubov Institute for Theoretical Physics, UA

We use the concept of resonant tunneling to calculate the thermopower of molecular nanosystems. It turns out that the sign of the thermovoltage under resonant tunneling conditions depends sensitively on the participating molecular orbital, and [...]

Thermoelectric properties of molecular nanostructures

Kruchinin S.P., Bogolyubov Institute for Theoretical Physics, UA

We use the concept of resonant tunneling to calculate the thermopower of molecular nanosystems. It turns out that the sign of the thermovoltage under resonant tunneling conditions depends sensitively on the participating molecular orbital, and [...]

Soft X-Ray Lithography for High-Aspect Ratio Sub-Micrometer Structures

Goettert J., Lemke S., Rudolph I., Seliger T., Loechel B., Louisiana State University, US

Combining soft x-ray lithography with SiN mask membrane and newly developed high contrast negative resist mr-X (micro resist technology GmbH, Berlin, Germany) enables the cost-effective patterning of sub-micrometer high aspect ratio structures. This work builds [...]