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Luminescent Europium Complex‐Grafted Octenyl Succinylated Starch Nanoparticles
Author(s) -
Mondragón Margarita,
Desirena Haggeo,
MorenoRuiz Luis Alberto,
BelloPérez Luis Arturo
Publication year - 2020
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201900290
Subject(s) - luminescence , succinic anhydride , starch , nanoparticle , fourier transform infrared spectroscopy , biocompatibility , europium , materials science , grafting , transmission electron microscopy , chemical engineering , nuclear chemistry , chemistry , polymer chemistry , nanotechnology , organic chemistry , polymer , optoelectronics , engineering
Novel luminescent starch nanoparticles are obtained by first grafting the Eu(TTA) 3 Phen‐NH 2 complex (Eu, europium; TTA, 2‐thenoyltrifluoracetonato; Phen, 1,10‐phenanthroline) onto octenyl succinic anhydride (OSA)‐modified corn starch and then using a nanoprecipitation method. The changes in the Fourier transform infrared spectra show that the Eu complex is grafted onto the OSA‐starch via amide bond formation. Transmission electron microscopy images show nanoparticles of irregular shape, with sizes in the range 35–270 nm. Eu complex‐grafted OSA‐starch nanoparticles (EuC‐OSA‐St‐NPs) exhibit red luminescence emission with long luminescence lifetimes. Their good biocompatibility supports their use for biomedical applications.