Synthesis and characterization of Eu(III) complexes of modified d-glucosamine and poly(N-isopropylacrylamide)

Mater Sci Eng C Mater Biol Appl. 2017 Sep 1:78:603-608. doi: 10.1016/j.msec.2017.03.059. Epub 2017 Mar 9.

Abstract

A series of chain-end functional polymers composed of poly(N-isopropylacrylamide) (PNIPAM) and 2-amino-2-deoxy-d-glucopyranose(d-glucosamine, GA) was synthesized via atom transfer radical polymerization (ATRP). Novel fluorescent complexes of glucosamine-PNI- PAM/Eu(III) were then formed by chelation of the polymers and europium(III) ions. The aqueous solutions of the polymers and its Eu(III) complexes exhibited a lower critical solution temperatures (LCSTs), and which were approximately equal to body temperature. Cell viability assays suggested that these thermosensitive polymers and Eu(III) complexes showed excellent biocompatibility in vitro.

Keywords: Atom transfer radical polymerization (ATRP); Fluorescence; Lower critical solution temperature (LCST); Poly(N-isopropylacrylamide) (PNIPAM); d-glucosamine(GA).

MeSH terms

  • Acrylamides
  • Acrylic Resins
  • Europium
  • Glucosamine / chemistry*
  • Temperature

Substances

  • Acrylamides
  • Acrylic Resins
  • poly-N-isopropylacrylamide
  • Europium
  • Glucosamine