Erratum to: Arch. Pharm. Res. DOI 10.1007/s12272-014-0404-7

Unfortunately, wrong figure was published in Fig. 5 of the original version of the article. The correct figure appears below.

Fig. 5
figure 5

Viability of MCF-7 cells cultured with drug-free nanoparticles (empty NPs), 17-AAG-loaded PLGA NPs (PLGA NPs-17-AAG) after 24 h (a), 48 h (b), and 72 h (c) along with free 17-AAG at the same drug concentrations (mean ± SD; *p < 0.05; n = 3)