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Microfluidic thermal treatment of seawater is a novel concept in the evaluation of the prevalence and stability of some fractions of dissolved organic matter in the aquatic environment. In this paper a microfluidic system is described which can implement this treatment and which is build using a low cost micro fluidic technology based on printed circuit boards. The technology and the production are...
Several studies have already demonstrated that it is possible to perform blood flow studies in microfluidic systems fabricated by using low-cost techniques. However, most of these techniques do not produce microchannels smaller than 100 microns and as a result they have several limitations related to blood cell separation. Recently, manufacturers have been able to produce milling tools smaller than...
The usage of standard PCBs (Printed Circuit Boards) for the creation of microfluidic systems was already reported. Here the combination of a standard microtechnology using photolithography and photo sensitive layers (SU8) and the PCB MEMS technology is presented. Using PCBs as the substrate the integration of electronics is simple and the substrate is available at low cost. Putting the sophisticated...
This paper presents the design and fabrication process of an electroosmotic micropump for impulsion of fluids at the microscale. Electroosmotic pumping is based on the creation of electrically charged layers in thin channels, which drag the fluid when in the presence of a directional electric field. The main objectives of the design are the low cost and the rapid prototyping of the device, which are...
DNA detection has become a standard tool in medicine and forensic. The steps for the DNA extraction, multiplication and detection are well known but costly and time consuming. The integration of the needed steps in modules called DNA chips is a research area in microfluidics. In this paper a PCB (printed circuit board) based approach is presented. In one multi layer PCB containing fluidic and electronic...
A pressure relief valve with excellent properties and feasible in a simple structure is presented here. The structure is flat and is optimized for the usage in the fluidic printed circuit board technology. The here presented pressure relief valve is alike conventional solutions with an orifice closed with a sealing element. As a force generating element permanent magnets are proposed here. This leads...
The Flow-Injection-Analysis (FIA) is a well known and widely used procedure for quantitative sensing of components in fluids. A huge number of analytes can be detected with specially developed procedures. Although due to its size the FIA is most often used in laboratories. Due to its accuracy and reproducibility a portable FIA for in-field measurements is a needed device. The here presented micro...
Printed Circuit Boards (PCBs) are widely used in electronics. The usage of PCBs for the creation of micro fluidic parts is rare. But the potential of a fluidic technology based on PCBs is huge. A complete new class of devices is possible. In this paper a micro Flow-Injection-Analysis (FIA) is described which is fully realized using PCBs. The here presented FIA is optimized to detect ferric ions. The...
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