Origami chips: Development and validation of a paper-based Lab-on-a-Chip device for the rapid and cost-effective detection of 4-methylmethcathinone (mephedrone) and its metabolite, 4-methylephedrine in urine

Lauren McNeill, Catherine Pearson, David Megson, John Norrey, Danielle Watson, D G Ashworth, Patricia Linton, Oliver B. Sutcliffe, Kirsty J. Shaw