Polymerization Assisted by Upconversion Nanoparticles under NIR Light

Polina Demina ^{1, 2}

Natalya Arkharova ¹

Ilya Asharchuk ¹

Kirill Khaydukov ¹

D. N. Karimov ¹

Vasilina Rocheva ¹

Andrey Nechaev ^{1, 3}

Yuri Grigoriev ¹

Alla Generalova ^{1, 2}

Evgeny V. Khaydukov ^{1, 4, 5}

Show full list: 10 authors

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Federal Scientific Research Center «Crystallography and Photonics» Russian Academy of Sciences, Leninskiy Prospekt 59, Moscow 119333, Russia |

Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Miklukho-Maklaya str. 16/10, Moscow 117997, Russia |

Institute of Fine Chemical Technologies, Moscow Technological University, Vernadsky Avenue 78, Moscow 119454, Russia |

⁴

I.M. Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, Moscow 119991, Russia |

⁵

Institute of Mathematics and Informational Technologies, Volgograd State University, Universitetskiy Prospect, 100, Volgograd 400062, Russia |

Publication type: Journal Article

Publication date: 2019-07-05

MDPI

Journal: Molecules

scimago Q1

SJR: 0.744

CiteScore: 7.4

Impact factor: 4.2

ISSN: 14203049

DOI: 10.3390/molecules24132476

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PubMed ID: 31284486

Organic Chemistry

Drug Discovery

Physical and Theoretical Chemistry

Pharmaceutical Science

Molecular Medicine

Analytical Chemistry

Chemistry (miscellaneous)

Abstract

Photopolymerization of nanocomposite materials using near infrared light is one of the unique technologies based on the luminescent properties of lanthanide-doped upconversion nanoparticles (UCNPs). We explored the UCNP-triggered radical polymerization both in oligomer bulk and on the nanoparticle surface in aqueous dispersion. Core/shell UCNPs NaYF4:Yb3+ and Tm3+/NaYF4 with emitting lines in the ultraviolet and blue regions were used to activate a photoinitiator. The study of the bulk photopolymerization in an initially homogeneous reaction mixture showed the UCNP redistribution due to gradient density occurring in the volume, which led to formation of UCNP superlattices and spheres “frozen” in a polymer matrix. We also developed a strategy of “grafting from” the surface, providing polymer shell growth directly on the nanoparticles. The photosensitization of the endogenous water-soluble photoinitiator riboflavin by the resonance energy transfer from UCNPs was demonstrated in the course of monomer glycidyl methacrylate polymerization followed by photocrosslinking with poly(ethylene glycol) diacrylate on the nanoparticle surface.

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