Fast prototyping of paper-based microfluidic devices by contact stamping using indelible ink
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AuthorCurto, Vicenzo; López Ruiz, Nuria; Capitán Vallvey, Luis Fermín; Palma López, Alberto José; Benito-Lopez, Fernando; Diamond, Dermot
RSC Adv., 2013,3, 18811-18816
SponsorshipSupported by Science Foundation Ireland under CLARITY CSET award (grant 07/CE/I1147)
Here we present a fast and cheap prototyping technique for the realisation of paper-based microfluidic devices simply by using a stamp and indelible ink. The proposed mechanism involves contact stamping of indelible ink to laboratory filter paper using a PDMS stamp, which defines the microfluidic structure. It is a cleanroom and washing steps-free method which provides a reproducible method for the production of functional paper-based microfluidic devices in a single step in less than 10 s. The method is fully characterised and the concept has been applied, as a proof-of-principle, for the realisation of a low-cost colorimetric glucose sensor.