Correction for Joh et al., Inkjet-printed point-of-care immunoassay on a nanoscale polymer brush enables subpicomolar detection of analytes in blood.

ENGINEERING Correction for “Inkjet-printed point-of-care immunoassay on a nanoscale polymer brush enables subpicomolar detection of analytes in blood,” by Daniel Y. Joh, Angus M. Hucknall, Qingshan Wei, Kelly A. Mason, Margaret L. Lund, Cassio M. Fontes, Ryan T. Hill, Rebecca Blair, Zackary Zimmers, Rohan K. Achar, Derek Tseng, Raluca Gordan, Michael Freemark, Aydogan Ozcan, and Ashutosh Chilkoti, which was first published August 7, 2017; 10.1073/ pnas.1703200114 (Proc Natl Acad Sci USA 114:E7054–E7062). The authors note that the following statement should be added to the Acknowledgments: “Funding support was also received from Elrha’s Humanitarian Innovation Fund (HIF)—a grantmaking facility (funded by aid from the UK Government and the Swedish International Development Agency) supporting organizations and individuals to identify, nurture, and share innovative and scalable solutions to the most pressing challenges facing effective humanitarian assistance.”