DK – Page 4 – TechConnect Briefs

Crystalline Magnetotunnel Junctions: Fe-MgO-Fe, Fe-FeOMgO-Fe and Fe-AuMgOAu-Fe

Stilling M., Stokbro K., Flensberg K., Copenhagen University, DK

The dimension of electronic devices is rapidly scaling down, and the ratio between surface and bulk atoms therefore increasing. This has the consequence that the interfaces between different parts of the device start to have [...]

Capillary filling speed in silicon dioxide nano-channels

Jarlgaard S.E., Mikkelsen M.B.L., Skafte-Pedersen P., Bruus H., Kristensen A., Technical University of Denmark, DK

We present a simple silicon-based fabrication technique for nanocapillaries based on controlled growth of silicon-dioxide, UV lithography, etching with etch-stop, and glass wafer bonding. Our approach improves state-of-the-art with respect to the obtained cross-wafer homogeneity [...]

Whole Blood Pumped by Laser Driven Micropump

Ussing T., Petersen L.V., Krühne U., Højslet L., FluimediX, DK

A novel laser driven peristaltic micro-pump for the manipulation of fluids in a micro system has been explored and validated on whole blood in saline solution. The pump is based on laser-induced film-boiling of the [...]

Mounting proteins on metal nanoparticles: Statistical analysis of AFM images

Gurevich L., Fojan P., Saxena R.K., Petersen S.B., Aalborg University, DK

In this work we assess the use of atomic force microscopy (AFM) study combined with activity assays, DLS and fluorescent measurements for complex characterization of nanoparticle-protein conjugates. Image processing techniques were used to locate and [...]

Novel Photonic Technique Creates Micrometer Resolution Multi-sensor Arrays and Provides a New Approach to Coupling of Genes, Nucleic Acids, Peptide Hormones and Drugs to Nanoparticle Carriers

Neves-Petersen M.T., Duroux L., Duroux M., Duroux L., Duroux M., Skovsen E., Neves-Petersen M.T., Petersen S.B., Professor, DK

Photonic induced immobilisation is a novel patented technology resulting in spatially oriented and localised covalent coupling of biomolecules onto surfaces. Immobilisation has been achieved for a wide selection of proteins, e.g., human plasminogen, alkaline phosphatase, [...]

Polysaccharide based Nanoparticles and Nanoporous matrices

Fojan P., Schwach-Abdellaoui K., Tommeraas K., Gurevich L., Petersen S.B., Aalborg University, DK

We have successfully obtained good quality SPM images of the gel state of selected polysaccharides. The images reveal a surprisingly flat surface richly decorated with 30-50 nm deep pores. This type of insight we believe [...]

Carbon nanotube Josephson junctions

Jørgensen H.I., Grove-Rasmussen K., Lindelof P.E., NanoScience Center, DK

We have succeeded in making reproducible superconducting contacts to gated single-walled carbon nanotubes (SWCNTs). Devices with two types of superconducting trilayer electrodes are fabricated; Ti/Al/Ti and Ti/Nb/Ti. We have devices both in the high transparency [...]

Nanomechanical Sensor Platform Based On Piezo-Resistive Cantilevers

Thaysen J., Havsteen Jacobsen M., Kildemark Nielsen L., Cantion A/S, DK

Cantion has developed a piezo-resistive cantilever sensor for the detection of molecular interactions. The Cantion technology has been used for the detection of plastic explosives, DNA and proteins. The small sensor and readout footprint makes [...]

Low Temperature Synthesis of Nanosized Metal Oxides by a Supercritical Seed Enhanced Crystallization process (SSEC)

Jensen H., Joensen K.D., Iversen S.B., Søgaard E.G., Aalborg University, DK

A novel low temperature method has been developed to produce nanosized crystalline materials. The method, a Supercritical Seed Enhanced Crystallization (SSEC) process, was shown to lower the crystallization temperature for several metal oxides by a [...]

Applications of Topology Optimization in the Design of Micro- and Nanofluidic Systems

Okkels F., Olesen L.H., Bruus H., Technical University of Denmark, DK

The material distribution method in topology optimization was developed in the late 1980ies for stiffness design of mechanical structures, and only recently the first steps have been taken towards implementing the method in fluidics. Topology [...]