title: Detection of bacteria using inkjet-printed enzymatic test strips.
abstract: Low-cost diagnostics for drinking water contamination have the potential to save millions of lives. We report a method that uses inkjet printing to copattern an enzyme-nanoparticle sensor and substrate on a paper-based test strip for rapid detection of bacteria. A colorimetric response is generated on the paper substrate that allows visual detection of contamination without the need for expensive instrumentation. These strips demonstrate a viable nanomanufacturing strategy for low-cost bacterial detection.
authors.affiliation: Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States.
authors.forename: Brian
authors.initials: B
authors.lastname: Creran
authors.forename: Xiaoning
authors.initials: X
authors.lastname: Li
authors.forename: Bradley
authors.initials: B
authors.lastname: Duncan
authors.forename: Chang Soo
authors.initials: CS
authors.lastname: Kim
authors.forename: Daniel F
authors.initials: DF
authors.lastname: Moyano
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Rotello
mesh_terms: D001419:Bacteria / Q000302:isolation & purification*; D003124:Colorimetry; D060766:Drinking Water / Q000032:analysis*; D006801:Humans; D053758:Nanoparticles / Q000737:chemistry*; D011327:Printing; D014876:Water Pollution
chemical_list: D060766:Drinking Water
keywords: bacteria; enzymes; gold nanoparticles; inkjet printing; sensing