1477-3155-9-511477-3155 Correction <p>Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs)</p> YuSShannshann.yu@vanderbilt.edu SchererLRandyrandy.l.scherer@vanderbilt.edu OrtegaARyanryan.a.ortega@vanderbilt.edu BellSCharlesoncharleson.bell@vanderbilt.edu O'NeilPConlinconlin.oneil@epfl.ch HubbellAJeffreyjeffrey.hubbell@epfl.ch GiorgioDToddtodd.d.giorgio@vanderbilt.edu

Department of Biomedical Engineering, Vanderbilt University; Nashville, Tennessee, USA

Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University; Nashville, Tennessee, USA

Interdisciplinary Program in Materials Science, Vanderbilt University; Nashville, Tennessee, USA

Integrative Biosciences Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland

 Journal of Nanobiotechnology 1477-3155 2011 9 1 51 http://www.jnanobiotechnology.com/content/9/1/51 10.1186/1477-3155-9-5122081905 31120111411201114112011 2011Yu 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

After publication of this work 1 , we found an error in the figure legend for Figure two. In Figure 2A, 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.

 <p>Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs)</p>YuSSSchererRLOrtegaRABellCSO'NeilCPHubbellJAGiorgioTDJournal of Nanobiotechnology20119710.1186/1477-3155-9-7305674321352596