Sample pre-concentration is crucial to achieve high sensitivity and low detection limits in lab-on-a-chip devices. Here, we present a system in which self-propelled catalytic micromotors are bio-functionalized and trapped acting as an alternative concentrating mechanism. This system requires no external energy source, which facilitates integration and miniaturization.
Restrepo-Perez, L. [et al.]. Biofunctionalized self-propelled micromotors as an alternative on-chip concentrating system. "Lab on a chip", 29 Maig 2014, vol. 14, núm. 16, p. 2914-2917.