Dendronised Polymers as Templates for In Situ Quantum Dot Synthesis

Alaa M. Munshi, Jessica A. Kretzmann, Cameron W. Evans, Anna M. Ranieri, Zibeon Schildkraut, Massimiliano Massi, Marck Norret, Martin Saunders, K. Swaminathan Iyer

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Abstract

The utility of dendrimers as effective carriers for targeted drug delivery and imaging has been facilitated by a high degree of molecular uniformity, narrow molecular weight distribution, tunable size and shape characteristics, and multivalency. Dendrimer-quantum dot (QD) nanocomposites have traditionally been synthesised by electrostatic self-assembly of preformed dendrimers and QDs, but higher generations are associated with limited flexibility and increased cytotoxicity. In this paper, we report the fabrication of CdTe QD nanoparticles using a dendronised linear copolymer bearing thiolated fourth-generation poly(amido amine) (PAMAM) dendrons as the capping and stabilising agent. We demonstrate this approach enables synthesis of nanocomposites with aqueous and photophysical stability. © 2020 CSIRO.
Original languageEnglish
Pages (from-to)658-663
Number of pages6
JournalAustralian Journal of Chemistry
Volume73
Issue number7
Early online date16 Jun 2020
DOIs
Publication statusPublished - Jul 2020

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