The design of a novel, microfluidic chip with an integrated micro peristaltic pump and chambers for DNA amplification is described. This chip contains three reaction chambers stable at 90 • C, 72 • C and 55 • C for PCR amplification, a bi-directional peristaltic pump and optical integrated detection of the droplet. A reactant droplet is to be introduced into the device, pumped back and forth between the chambers by the micro peristaltic pump for sample processing. The static behaviour of the micro pump was modelled theoretically in order to evaluate the optimal dimensions for the pump membranes and to obtain the maximum flow rate. Thermal analysis by the finite element method was performed to optimize the location of the heaters and the temperature uniformity over the three reaction chambers. Transient thermal analysis indicates that the reactant droplet can be heated/cooled in the proposed device in less than 1 s to achieve the desired temperatures.

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An investigation into the pumping flow rates and the time-resolved membrane actuation of a microperistaltic pump integrated within a micro total analysis system (μTAS) is presented. The results include (i) the design of the driver circuit to operate the peristaltic micropump, (ii) Michelson interferometer measurements of the pump displacement and (iii) pump flow rate measurements. The peristaltic micropump, configured with three PZT actuated glass membranes and silicon channels, is integrated within the μTAS device with microfluidic reaction chambers. The micropump pumps a 1 µl droplet back and forth between the reaction chambers.

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This paper describes how sixteen partners from eight different countries across Europe are working together in two EU projects focused on the development of a point of care system. This system uses disposable Lab on a Chips (LOCs) that carry out the complete assay from sample preparation to result interpretation of raw samples. The LOC is either embedded in a flexible motherboard with the form of a smartcard (Labcard) or in a Skinpatch. The first project, OPTOLABCARD, extended and tested the use of a thick photoresit (SU-8) as a structural material to manufacture LOCs by lamination. This project produced several examples where SU-8 microfluidic circuitry revealed itself as a viable material for several applications, such as the integration on chip of a Polymerase Chain Reaction (PCR) that includes sample concentration, PCR amplification and optical detection of Salmonella spp. using clinical samples. The ongoing project, LABONFOIL, is using two results of OPTOLABCARD: the sample concentration method and the capability to fabricate flexible and ultra thin LOCs based on sheets instead of wafers. This rupture from the limited and expensive wafer surface heritage allows the development of a platform where LOCs are big enough to include all the sample preparation subcomponents at a low price. These LOCs will be used in four point of care applications: environment, food, cancer and drug monitoring. The user will obtain the results of the tests by connecting the Labcard/Skinpatch reader to a very popular interface (a smartphone), creating a new instrument namely "The SmartBioPhone". All standard smartphone capabilities will be at the disposal of the point of care instrument by a simple click. In order to guarantee the future mass production of these LOCs, the project will develop a large dry film equipment where LOCs will be fabricated at a low cost.