title: FORMING SELF-ASSEMBLED CELL ARRAYS AND MEASURING THE OXYGEN CONSUMPTION RATE OF A SINGLE LIVE CELL.
abstract: We report a method for forming arrays of live single cells on a chip using polymer micro-traps made of SU8. We have studied the toxicity of the microfabricated structures and the associated environment for two cell lines. We also report a method for measuring the oxygen consumption rate of a single cell using optical interrogation of molecular oxygen sensors placed in micromachined micro-wells by temporarily sealing the cells in the micro-traps. The new techniques presented here add to the collection of tools available for performing "single-cell" biology. A single-cell self-assembly yield of 61% was achieved with oxygen draw down rates of 0.83, 0.82, and 0.71 fmol/minute on three isolated live A549 cells.
authors.affiliation: Electrical Engineering, University of Washington, Seattle, WA, USA.
authors.forename: James R
authors.initials: JR
authors.lastname: Etzkorn
authors.forename: Sarah C
authors.initials: SC
authors.lastname: McQuaide
authors.forename: Judy B
authors.initials: JB
authors.lastname: Anderson
authors.forename: Deirdre R
authors.initials: DR
authors.lastname: Meldrum
authors.forename: Babak A
authors.initials: BA
authors.lastname: Parviz