Erratum to: Enzymatic- and temperature-sensitive controlled release of ultrasmall superparamagnetic iron oxides (USPIOs)
© Yu et al; licensee BioMed Central Ltd. 2011
Received: 3 November 2011
Accepted: 14 November 2011
Published: 14 November 2011
After publication of this work , 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.
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