Refine
Year of publication
- 2012 (310) (remove)
Document Type
- Article (128)
- Conference Proceeding (89)
- Part of a Book (35)
- Book (26)
- Patent (11)
- Part of Periodical (9)
- Doctoral Thesis (6)
- Report (4)
- Habilitation (1)
- Other (1)
Keywords
- Elektromobilität (7)
- Elektrofahrzeug (5)
- Energieversorgungsnetz (5)
- Kraftfahrzeugelektronik (5)
- Aachen / Fachhochschule Aachen (3)
- Aachen University of Applied Sciences (2)
- Elektromobilität; Elektrofahrzeug; Energieversorungsnetz; Kraftfahrzeugtechnik (2)
- (Bio)degradation (1)
- 3. EU Legislativpaket (1)
- 802.15.4 (1)
- Acceleration (1)
- Afterload (1)
- Alginate beads (1)
- Anastomotic leakage (1)
- Aufschlagversuch (1)
- Autolysis (1)
- Avalanche (1)
- Bank-issued Warrants (1)
- Bio-Sensors (1)
- Biosensor (1)
Institute
- Fachbereich Medizintechnik und Technomathematik (72)
- Fachbereich Wirtschaftswissenschaften (42)
- Fachbereich Elektrotechnik und Informationstechnik (32)
- INB - Institut für Nano- und Biotechnologien (32)
- IfB - Institut für Bioengineering (31)
- Fachbereich Bauingenieurwesen (30)
- Fachbereich Maschinenbau und Mechatronik (29)
- Fachbereich Chemie und Biotechnologie (27)
- Fachbereich Energietechnik (20)
- Solar-Institut Jülich (15)
- Fachbereich Luft- und Raumfahrttechnik (13)
- FH Aachen (12)
- Fachbereich Gestaltung (9)
- Fachbereich Architektur (6)
- Sonstiges (3)
- Freshman Institute (1)
- IBB - Institut für Baustoffe und Baukonstruktionen (1)
- Nowum-Energy (1)
Label-free electrical detection of consecutive deoxyribonucleic acid (DNA) hybridization/denaturation by means of an array of individually addressable field-effect-based nanoplate silicon-on-insulator (SOI) capacitors modified with gold nanoparticles (Au-NP) is investigated. The proposed device detects charge changes on Au-NP/DNA hybrids induced by the hybridization or denaturation event. DNA hybridization was performed in a high ionic-strength solution to provide a high hybridization efficiency. On the other hand, to reduce the screening of the DNA charge by counter ions and to achieve a high sensitivity, the sensor signal induced by the hybridization and denaturation events was measured in a low ionic-strength solution. High sensor signals of about 120, 90, and 80 mV were registered after the DNA hybridization, denaturation, and re-hybridization events, respectively. Fluorescence microscopy has been applied as reference method to verify the DNA immobilization, hybridization, and denaturation processes. An electrostatic charge-plane model for potential changes at the gate surface of a nanoplate field-effect sensor induced by the DNA hybridization has been developed taking into account both the Debye length and the distance of the DNA charge from the gate surface.
There is common agreement within the scientific community that in order to understand our local galactic environment it will be necessary to send a spacecraft into the region beyond the solar wind termination shock. Considering distances of 200 AU for a new mission, one needs a spacecraft traveling at a speed of close to 10 AU/yr in order to keep the mission duration in the range of less than 25 yrs, a transfer time postulated by European Space Agency (ESA). Two propulsion options for the mission have been proposed and discussed so far: the solar sail propulsion and the ballistic/radioisotope-electric propulsion (REP). As a further alternative, we here investigate a combination of solar-electric propulsion (SEP) and REP. The SEP stage consists of six 22-cms diameter RIT-22 ion thrusters working with a high specific impulse of 7377 s corresponding to a positive grid voltage of 5 kV. Solar power of 53 kW at begin of mission (BOM) is provided by a lightweight solar array.