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Mastering Dendrimer Self-Assembly for Efficient siRNA Delivery: From Conceptual Design to In Vivo Efficient Gene Silencing.


ABSTRACT: Self-assembly is a fundamental concept and a powerful approach in molecular science. However, creating functional materials with the desired properties through self-assembly remains challenging. In this work, through a combination of experimental and computational approaches, the self-assembly of small amphiphilic dendrons into nanosized supramolecular dendrimer micelles with a degree of structural definition similar to traditional covalent high-generation dendrimers is reported. It is demonstrated that, with the optimal balance of hydrophobicity and hydrophilicity, one of the self-assembled nanomicellar systems, totally devoid of toxic side effects, is able to deliver small interfering RNA and achieve effective gene silencing both in cells - including the highly refractory human hematopoietic CD34(+) stem cells - and in vivo, thus paving the way for future biomedical implementation. This work presents a case study of the concept of generating functional supramolecular dendrimers via self-assembly. The ability of carefully designed and gauged building blocks to assemble into supramolecular structures opens new perspectives on the design of self-assembling nanosystems for complex and functional applications.

SUBMITTER: Chen C 

PROVIDER: S-EPMC5724382 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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Mastering Dendrimer Self-Assembly for Efficient siRNA Delivery: From Conceptual Design to In Vivo Efficient Gene Silencing.

Chen Chao C   Posocco Paola P   Liu Xiaoxuan X   Cheng Qiang Q   Laurini Erik E   Zhou Jiehua J   Liu Cheng C   Wang Yang Y   Tang Jingjie J   Col Valentina Dal VD   Yu Tianzhu T   Giorgio Suzanne S   Fermeglia Maurizio M   Qu Fanqi F   Liang Zicai Z   Rossi John J JJ   Liu Minghua M   Rocchi Palma P   Pricl Sabrina S   Peng Ling L  

Small (Weinheim an der Bergstrasse, Germany) 20160531 27


Self-assembly is a fundamental concept and a powerful approach in molecular science. However, creating functional materials with the desired properties through self-assembly remains challenging. In this work, through a combination of experimental and computational approaches, the self-assembly of small amphiphilic dendrons into nanosized supramolecular dendrimer micelles with a degree of structural definition similar to traditional covalent high-generation dendrimers is reported. It is demonstra  ...[more]

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