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Soft and Flexible Poly(ethylene Glycol) Nanotubes for Local Drug Delivery

Soft and Flexible Poly(ethylene Glycol) Nanotubes for Local Drug Delivery

B Newland, C Taplan, D Pette, J Friedrichs, M Steinhart, W Wang, B Voit, F P Seib, C Werner

Nanoscale. 2018 May 10;10(18):8413-8421.

PMID: 29714385

Abstract:

Nanotubes are emerging as promising materials for healthcare applications but the selection of clinically relevant starting materials for their synthesis remains largely unexplored. Here we present, for the first time, the synthesis of poly(ethylene glycol) (PEG) based nanotubes via the photopolymerization of poly(ethylene glycol) diacrylate and other diacrylate derivatives within the pores of anodized aluminum oxide templates. Template-assisted synthesis allowed the manufacture of a diverse set of polymeric nanotubes with tunable physical characteristics including diameter (∼200-400 nm) and stiffness (405-902 kPa). PEG nanotubes were subjected to cytotoxicty assessment in cell lines and primary stem cells and showed excellent cytocompatability (IC50 > 120 μg ml-1). Nanotubes were readily drug loaded but released the majority of the drug over 5 days. Direct administration of drug loaded nanotubes to human orthotopic breast tumors substantially reduced tumor growth and metastasis and outperformed i.v. administration at the equivalent dose. Overall, this nanotube templating platform is emerging as a facile route for the manufacture of poly(ethylene glycol) nanotubes.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS711113	Poly(ethylene glycol) diacrylate			Price

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