Retraction Note to: Nanoscale Res Lett (2021) 16:63 https://doi.org/10.1186/s11671-021-03520-3

The Editors in Chief have retracted this article. After publication, concerns were raised concerning the appearance of Western blots and a possible similarity between the STAT3 bands in Fig. 5 b and e. The authors did not respond to requests for further clarification and did not supply raw images or the ethics permit. The editors, therefore, have lost confidence in the integrity of the article's findings. The editor was not able to obtain a current email address for Authors Shuai Zhang and Jingyan Liang. Authors have not responded to any correspondence from the editor or publisher about this retraction.