Title

Aliphatic Hyperbranched Polyester: A New Building Block In The Construction Of Multifunctional Nanoparticles And Nanocomposites

Abstract

Herein we report the design and synthesis of multifunctional hyperbranched polyester-based nanoparticles and nanocomposites with properties ranging from magnetic, fluorescence, antioxidant and X-ray contrast. The fabrication of these nanostructures was achieved using a novel aliphatic and biodegradable hyperbranched polyester (HBPE) synthesized from readily available diethyl malonate. The polymer's globular structure with functional surface carboxylic groups and hydrophobic cavities residing in the polymer's interior allows for the formation of multifunctional polymeric nanoparticles, which are able to encapsulate a diversity of hydrophobic cargos. Via simple surface chemistry modifications, the surface carboxylic acid groups were modified to yield nanoparticles with a variety of surface functionalizations, such as amino, azide and propargyl groups, which mediated the conjugation of small molecules. This capability achieved the engineering of the HBPE nanoparticle surface for specific cell internalization studies and the formation of nanoparticle assemblies for the creation of novel nanocomposites that retained, and in some cases enhanced, the properties of the parental nanoparticle building blocks. Considering these results, the HBPE polymer, nanoparticles and composites should be ideal for biomedical, pharmaceutical, nanophotonics applications. © 2009 American Chemical Society.

Publication Date

4-20-2010

Publication Title

Langmuir

Volume

26

Issue

8

Number of Pages

5364-5373

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/la9037843

Socpus ID

77950952101 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77950952101

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