Correction
Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs)
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
Journal of Nanobiotechnology 2011, 9:51 doi:10.1186/1477-3155-9-51
Published: 14 November 2011First paragraph (this article has no abstract)
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.



