A combined travelling wave dielectrophoresis and electrorotation device: applied to the concentration and viability determination of<i>Cryptosporidium</i>

Abstract

We describe a microelectrode device, fabricated using photolithography and laser ablation, that combines the electrokinetic effects of travelling wave dielectrophoresis and electrorotation. Here it has been used to concentrate and then assay the viability of Cryptosporidium parvum oocysts.