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https://hdl.handle.net/2440/94832
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Type: | Journal article |
Title: | Intracellular microenvironment-responsive dendrimer-like mesoporous nanohybrids for traceable, effective, and safe gene delivery |
Author: | Du, X. Xiong, L. Dai, S. Kleitz, F. Zhang Qiao, S. |
Citation: | Advanced Functional Materials, 2014; 24(48):7627-7637 |
Publisher: | Wiley |
Issue Date: | 2014 |
ISSN: | 1616-301X 1616-3028 |
Statement of Responsibility: | Xin Du, Lin Xiong, Sheng Dai, Freddy Kleitz, and Shi Zhang Qiao |
Abstract: | In order to create advanced functional nanocarriers for efficient gene therapy, novel intracellular microenvironment-sensitive fluorescence label-free nanostructured dendrimer-like silica hybrid nanocarriers are developed for traceable, effective, and safe gene delivery. Dendrimer-like mesoporous silica nanoparticles (DMSNs) with center-radial large pores are covalently modified with short polyethyleneimine (PEI) for efficient gene loading and binding. Autofluorescent and biodegradable PEI (AC-PEI) responsive to the intracellular microenvironment are then coated on the gene-loaded nanoparticles for inhibiting gene leakage from the carriers. Moreover, AC-PEI coating not only endows intracellular microenvironment-responsive gene release property, but also allows monitoring the gene delivery process in the absence of external labelling, owing to the pH- and GSH-responsive autofluorescence and biodegradability of AC-PEI. The resultant nanocarriers show high gene loading capacity, low cytotoxicity, stimuli-responsive gene release, label-free, and simultaneous fluorescence tracking, and high gene silencing capability. Thus, these developed nanocarriers hold substantial and promising potential as effective and safe gene-delivery carriers for future scientific investigation and practical implications in gene therapy. |
Description: | Article first published online: 6 OCT 2014 |
Rights: | © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
DOI: | 10.1002/adfm.201402408 |
Grant ID: | http://purl.org/au-research/grants/arc/DP140104062 http://purl.org/au-research/grants/arc/DP130104459 http://purl.org/au-research/grants/arc/DP110102877 |
Published version: | http://dx.doi.org/10.1002/adfm.201402408 |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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