Preparation and in vitro Evaluation of Doxorubicin-Loaded Fe3O4 Magnetic Nanoparticles Modified with Biocompatible Copolymers [Retraction]

Akbarzadeh A, Mikaeili H, Zarghami N, Mohammad R,Barkhordari A, Davaran S. Int J Nanomedicine.2012;7:511-526. The Editor-in-Chief and Publisher of International Journalof Nanomedicine with to retract the published article. We were notified of potential image duplication in thepublished article. The issue related to the same imagesallegedly published in similar articles by several of thesame authors: ● Figure 6A, 6B and 6C, Figure 7D, Figure 8, Figure9A, Figure 12A and Figure 15A, 15B and 15C appearto be the same images used in Figure 5A, 5B and 5C,Figure 6B, Figure 7A, Figure 8A, Figure 9A andFigure 12A, 12B and 12C, respectively, in the article'Synthesis, characterization, and in vitro evaluationof novel polymer-coated magnetic nanoparticles forcontrolled delivery of doxorubicin'. Nanotechnology,Science and Applications. 2012;5:13-25 (https://doi.org/10.2147/NSA.S24328).● Figure 7D, Figure 8 and Figure 9A and 9C appear tobe the same images used for Figure 10c, Figure 5 andFigure 6a and 6c, respectively, in the article'Synthesis, characterization and in vitro studies ofdoxorubicin-loaded magnetic nanoparticles graftedto smart copolymers on A549 lung cancer cell line'.Journal of Nanobiotechnology. 2012;10:46 (https://doi.org/10.1186/1477-3155-10-46).● Figure 8 and Figure 9 appear to contain the sameimages used for Figure 5 and Figure 6, respectively,in the article 'Synthesis, Characterization, and Invitro Studies of PLGA -PEG Nanoparticles for OralInsulin Delivery'. Chemical Biology & Drug Design.2014;84(3):307-315 (https://doi.org/10.1111/cbdd.12318).● Figure 9A and 9C appear to be the same images usedfor Figure 3a and 3b, respectively, in the article'Inhibition of hTERT Gene Expression by Silibinin-Loaded PLGA-PEG-Fe3O4 in T47D Breast CancerCell Line'. Bioimpacts 2013;3(2):67-74 (https://pubmed.ncbi.nlm.nih.gov/23878789/). The samplewas described in Figure 9C as doxorubicin-loadedFe3O4 magnetic nanoparticles, whereas the samplein Figure 3b was described as silbinin-loaded Fe3O4magnetic nanoparticles. The authors were unable to responded to our queries ina timely manner and the editor determined that the findingsof the study were no longer valid and requested forthe article to be retracted. Our decision-making was informed by our policy on publishingethics and integrity and the COPE guidelines onretraction. The retracted article will remain online to maintain thescholarly record, but it will be digitally watermarked oneach page as "Retracted". This retract