Show simple item record

dc.contributor.authorBonyár, Attila
dc.contributor.authorSzalóki, Melinda
dc.contributor.authorBorók, Alexandra
dc.contributor.authorRigó, István
dc.contributor.authorKámán, Judit
dc.contributor.authorZangana, Shereen
dc.contributor.authorVeres, Miklós
dc.contributor.authorRácz, Péter
dc.contributor.authorAladi, Márk
dc.contributor.authorKedves, Miklós Ákos
dc.contributor.authorSzokol, Ágnes
dc.contributor.authorPetrik, Péter
dc.contributor.authorFogarassy, Zsolt
dc.contributor.authorMolnár, Kolos
dc.contributor.authorCsete, Mária
dc.contributor.authorSzenes, András
dc.contributor.authorTóth, Emese
dc.contributor.authorVas, Dávid
dc.contributor.authorPapp, Istvan
dc.contributor.authorGalbács, Gábor
dc.contributor.authorCsernai, László Pál
dc.contributor.authorBiró, Tamás S.
dc.contributor.authorKroó, Norbert
dc.contributor.authorCollaboration, N.A.P.L.I.F.E.
dc.description.abstractIn this work, the effects of femtosecond laser irradiation and doping with plasmonic gold nanorods on the degree of conversion (DC) of a urethane dimethacrylate (UDMA)–triethylene glycol dimethacrylate (TEGDMA) nanocomposite were investigated. The UDMA-TEGDMA photopolymer was prepared in a 3:1 weight ratio and doped with dodecanethiol- (DDT) capped gold nanorods of 25 × 75 or 25 × 85 nm nominal diameter and length. It was found that the presence of the gold nanorods alone (without direct plasmonic excitation) can increase the DC of the photopolymer by 6–15%. This increase was found to be similar to what could be achieved with a control heat treatment of 30 min at 180 °C. It was also shown that femtosecond laser impulses (795 nm, 5 mJ pulse energy, 50 fs pulse length, 2.83 Jcm−2 fluence), applied after the photopolymerization under a standard dental curing lamp, can cause a 2–7% increase in the DC of undoped samples, even after thermal pre-treatment. The best DC values (12–15% increase) were obtained with combined nanorod doping and subsequent laser irradiation close to the plasmon resonance peak of the nanorods (760–800 nm), which proves that the excited plasmon field can directly facilitate double bond breakage (without thermoplasmonic effects due to the short pulse length) and increase the crosslink density independently from the initial photopolymerization process.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleThe Effect of Femtosecond Laser Irradiation and Plasmon Field on the Degree of Conversion of a UDMA-TEGDMA Copolymer Nanocomposite Doped with Gold Nanorodsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2022 by the authorsen_US
dc.source.journalInternational Journal of Molecular Sciencesen_US
dc.identifier.citationInternational Journal of Molecular Sciences. 2022, 23 (21), 13575.en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal