The programme is highly interdisciplinary involving physics, materials science, biology and electronics. The program also involves both experimental and theoretical activities. On the technological side the projects will act as a spearhead for improved nano-fabrication of devices. The project will also advance measurement technology, in several cases also involving high frequency measurements.

The programme consists of eight different projects which can be divided into two areas. Three of the projects aim at studying biological problems, whereas two of the projects are concerned with extremely sensitive electronic measurements, and three projects will be addressing both areas. Several projects will address materials issues and theoretical problems in these sensors.

1. Biosensors using magnetic nanoparticles and SQUIDs (Winkler)
Utilizing the extreme sensitivity of SQUID magnetometers (Superconducting QUantum Interference Devices) to study magnetic nanoparticles that are dressed with bio-molecules, e.g. antigens.

2. Combining electrical measurements with QCM-D for life science applications (Kasemo/Delsing)
Developing a diagnostic platform combining the established QCM-D(Quartz Crystal Microbalance with Dissipation monitoring) with impedance measurements, for sensing and other life science applications.

3. A Coulomb blockade nano-biosensor (Kubatkin/ Olofsson)
Creating a biosensor based on a single electron transistor (SET), and to use it for detection of single antigen molecules.

4. A Scanning SET microscope for electronics and biology (Kubatkin/Voinova)
Building an apparatus, which is able to study charge distributions on surfaces with very high charge sensitivity and high spatial resolution.

5. Counting electrons (Delsing)
Developing an Ampère meter to measure extremely small currents by counting the individual electrons passing in a circuit.

6. Measuring charge and photons using the quantum capacitance (Delsing)
Measuring charge with a Radio-Frequency Single-Electron-Transistor (RF-SET) by modulating the quantum capacitance of the RF- SET.

7. Theory for nanosensors and cell-chip interfaces (Wendin)
Studying transport processes in nanoelectronic devices, such as molecular transistors, nanoparticle networks, and interfaces to biological and biomimetic systems.

8. Structural studies of the tunnel barriers, improving sensor performance (Olsson/Delsing)
Studying the structure of tunnel barriers using high-resolution analytical transmission electron microscopy. This information will be fed back to the sensor fabrication to improve the sensor performance.

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Dept of Microtechnology and Nanoscience - MC2
Chalmers University of Technology
SE-412 96  Göteborg
Visiting address: Kemivägen 9
Phone +46 (0)31-772 1000 | Fax +46 (0)31-772 8498