Open Access Article
This Open Access Article is licensed under a
Creative Commons Attribution 3.0 Unported Licence

Correction and removal of expression of concern: Natural steroid-based cationic copolymers cholesterol/diosgenin-r-PDMAEMAs and their pDNA nanoplexes: impact of steroid structures and hydrophobic/hydrophilic ratios on pDNA delivery

Zhao Wangabc, Jingjing Sunac, Mingrui Lic, Ting Luoc, Yulin Shenb, Amin Cao*c and Ruilong Sheng*acd
aDepartment of Radiology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
bSchool of Material Engineering, Jinling Institute of Technology, Nanjing, 211169, China
cCAS Key Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
dCQM-Centro de Quimica da Madeira, Universidade da Madeira, Campus da Penteada, Funchal, Madeira 9000-390, Portugal. E-mail: ruilong.sheng@staff.uma.pt

Received 31st July 2023 , Accepted 31st July 2023

First published on 4th August 2023


Abstract

Correction and removal of expression of concern for ‘Natural steroid-based cationic copolymers cholesterol/diosgenin-r-PDMAEMAs and their pDNA nanoplexes: impact of steroid structures and hydrophobic/hydrophilic ratios on pDNA delivery’ by Zhao Wang et al., RSC Adv., 2021, 11, 19450–19460, https://doi.org/10.1039/D1RA00223F.


Fig. 2a and b in the original article are identical. The authors have now provided replacement data for Fig. 2b, shown here. There was an error in the original caption and the caption has been updated to state ‘Agarose gel retardation assay’.
image file: d3ra90073h-f2.tif
Fig. 2 Agarose gel retardation assay of plasmid DNA affinity under various N/P charge ratios (0, 1.0, 1.5, 2.0, 2.5, 3.0, 5.0, 8.0) for the (A) Chol-P1/pDNA; (B) Chol-P2/pDNA; (C) Chol-P3/pDNA; (D) Dios-P1/pDNA; (E) Dios-P2/pDNA; (F) Dios-P3/pDNA.

An independent expert has viewed the corrected data for Fig. 2b and has concluded that it is consistent with the discussions and conclusions presented.

This correction supersedes the information provided in the Expression of Concern related to this article.

The authors regret additional errors in the manuscript.

In Table 1 the units for Mn,NMR and Mn,GPC should be ×10 kg mol−1.

On page 19451, in the left column, in paragraph 2, line 9 and in the right column, in paragraph 3, line 10 the text ‘(dimethylamino)ethyl methacrylate (DMAEMA)’ should have been written as ‘2-(dimethylamino)ethyl methacrylate (DMAEMA)’.

The authors and the Royal Society of Chemistry apologise for these errors and any consequent inconvenience to authors and readers.


This journal is © The Royal Society of Chemistry 2023
Click here to see how this site uses Cookies. View our privacy policy here.