Publications by authors named "Stefan GaSSmann"
Article Synopsis
- Researchers are developing a new method for detecting trace gases in the air using ionization energies, which can be miniaturized and fine-tuned.
- Traditional methods for identification rely on large equipment, like mass spectrometers, but this new approach uses electron impact ionization, generated via the photoelectric effect, for better sensitivity at a lower scale.
- The method achieves sensitivity levels of 1 ppm, comparable to classic photoionization detection (PID), and can identify substances with an accuracy of 30 meV, supported by quantum mechanical models.
The infield measurement of nutrients, heavy metals, and other contaminants in water is still a needed tool in environmental sciences. The Lab-on-a-chip approach can develop deployable instruments that use the standardized analytical assay in a miniaturized manner in the field. This paper presents a Lab-on-a-chip platform for colorimetric measurements that can be deployed for nutrient monitoring in open water (oceans, rivers, lakes, etc.
View Article and Find Full Text PDFThe combination of printed circuit boards (PCB) and microfluidics has many advantages. The combination of electrodes, sensors and electronics is needed for almost all microfluidic systems. Using PCBs as a substrate, this integration is intrinsic.
View Article and Find Full Text PDFThe ingress of body fluids or their constituents is one of the main causes of failure of active implantable medical devices (AIMDs). Progressive delamination takes its origin at the junctions where exposed electrodes and conductive pathways enter the implant interior. The description of this interface is considered challenging because electrochemically-diffusively coupled processes are involved.
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