This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Correction: Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs) Journal of Nanobiotechnology 2011, 9:51 doi:10.1186/1477-3155-9-51 Shann S Yu (shann.yu@vanderbilt.edu) Randy L Scherer (randy.l.scherer@vanderbilt.edu) Ryan A Ortega (ryan.a.ortega@vanderbilt.edu) Charleson S Bell (charleson.bell@vanderbilt.edu) Conlin P O'Neil (conlin.oneil@epfl.ch) Jeffrey A Hubbell (jeffrey.hubbell@epfl.ch) Todd D Giorgio (todd.d.giorgio@vanderbilt.edu) ISSN 1477-3155 Article type Correction Submission date 3 November 2011 Acceptance date 14 November 2011 Publication date 14 November 2011 Article URL http://www.jnanobiotechnology.com/content/9/1/51 This peer-reviewed article was published immediately upon acceptance. It can be downloaded, printed and distributed freely for any purposes (see copyright notice below). Articles in JN are listed in PubMed and archived at PubMed Central. For information about publishing your research in JN or any BioMed Central journal, go to http://www.jnanobiotechnology.com/authors/instructions/ For information about other BioMed Central publications go to http://www.biomedcentral.com/ Journal of Nanobiotechnology © 2011 Yu et al. ; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Correction: Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs) Shann S. Yu 1,2 , Randy L. Scherer 2,3 , Ryan A. Ortega 1,2 , Charleson S. Bell 1,2 , Conlin P. O'Neil 4 , Jeffrey A. Hubbell 4 and Todd D. Giorgio 1,2* Affiliations: 1 Department of Biomedical Engineering, Vanderbilt University; Nashville, Tennessee, USA 2 Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University; Nashville, Tennessee, USA 3 Interdisciplinary Program in Materials Science, Vanderbilt University; Nashville, Tennessee, USA 4 Integrative Biosciences Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland Email: SSY : shann.yu@vanderbilt.edu RLS: randy.l.scherer@vanderbilt.edu RAO: ryan.a.ortega@vanderbilt.edu CSB: charleson.bell@vanderbilt.edu CPO'N: conlin.oneil@epfl.ch JAH: jeffrey.hubbell@epfl.ch TDG: todd.d.giorgio@vanderbilt.edu *Corresponding author Correction: After publication of this work [1], we found an error in the figure legend for Figure two. In Figure twoA, GPC chromatograms of the synthesized co-polymers were shown, but the completed cPEG-PPS product contains some residual PPS-COOH, not H2N-PEG-COOH as originally described in the figure legend. Reference 1.Yu, S. S., Scherer, R. L., Ortega, R. A., Bell, C. S., O'Neil, C. P., Hubbell, J. A., Giorgio, T. D. (2011) Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs). Journal of Nanobiotechnology 9, 7. . formatted PDF and full text (HTML) versions will be made available soon. Correction: Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs) Journal of. distribution, and reproduction in any medium, provided the original work is properly cited. Correction: Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides. Hubbell, J. A., Giorgio, T. D. (2011) Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs). Journal of Nanobiotechnology 9, 7.