Graphene oxide as a pathogen-revealing agent: Sensing with a digital-like response

Abstract

Turned ON by a pathogen: A highly sensitive pathogen-detection system has been designed and evaluated for the sensing of E. coli bacteria in diverse matrices. It employs antibody-quantum dot (Ab-QD) probes and exploits the extraordinary two-dimensional structure and fluorescence-quenching capabilities of graphene oxide. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.This work was supported by MICINN (Spain; MAT2011-25870) and by a CONACYT (Mexico) fellowship (E.M.-N.).Peer Reviewe