Application of optical fibres in microfluidic structures

摘要

Two constructions of microfluidic structures are described in this paper. A fibre optic chemical coupler and a microcell for spectrophometric measurements were designed and tested. The structures were made of polymer optical fibres (PMMA) which were incorporated into polymeric material i.e. poly(dimethylsiloxane). The structures were tested as detectors in refractometric experiment (saccharose solutions with different concentrations were used), in absorbance measurement (solutions of bromothymol blue with different pH were used) and in fluorescence tests (solution of erythrosine was used).