Authors: Solène Passemard Davide Staedler Giona Sonego Thibaud Magouroux Guillaume Stéphane Schneiter Lucienne JuilleratJeanneret Luigi Bonacina Sandrine GerberLemaire
Publish Date: 2015/10/19
Volume: 17, Issue: 10, Pages: 414-
Abstract
Bismuth ferrite BFO harmonic nanoparticles NPs display high nonlinear optical efficiency and excellent biocompatibility profile which make them attractive for the development of diagnostic applications as contrast agents In this study we present a general method for the functionalization of this material with chemical ligands targeting cancer molecular biomarkers In particular a conjugation protocol based on click reaction between alkynylcontaining targeting ligands and polyethylene glycolcoated BFO NPs 677 nm displaying surface reactive azido groups was developed Copperfree click reaction allowed fast and efficient conjugation of a covalent inhibitor of prolylspecific endopeptidases to coated BFO NPs The ability of these functionalized nanomaterials 1342 nm to act as imaging probes for cancer cells was demonstrated by the selective labeling of human lung cancer cellsThis work was supported by the European Commission FP7 NAMDIATREAM project EU NMP4LA2010246479 and by the INTERREG IV NAOMI project The authors thank MER Dr Christine Wandrey for helpful discussions and access to analytical equipment We also thank Mr Anto Barisic and Dr Pascal Miéville NMR spectrometry service ISIC EPFL Dr Laure Menin and Mr Francisco Sepulveda MS service ISIC EPFL for their technical help
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