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https://hdl.handle.net/123456789/950| Τύπος: | Άρθρο σε επιστημονικό περιοδικό |
| Τίτλος: | Synthesis of novel dental nanocomposite resins by incorporating polymerizable, quaternary ammonium silane-modified silica nanoparticles |
| Συγγραφέας: | [EL] Νικολαΐδης, Αλέξανδρος[EN] Nikolaidis, Alexandros [EL] Κουλαουζίδου, Ελισάβετ[EN] Koulaouzidou, Elizabeth [EL] Γκόγκος, Χρήστος[EN] Gogos, Christos [EL] Αχιλιάς, Δημήτριος[EN] Achilias, Dimitrios |
| Ημερομηνία: | 21/05/2021 |
| Περίληψη: | Diverse approaches dealing with the reinforcement of dental composite resins with quaternary ammonium compounds (QAC) have been previously reported. This work aims to investigate the physicochemical and mechanical performance of dental resins containing silica nanofillers with novel QAC. Different types of quaternary ammonium silane compounds (QASiC) were initially synthesized and characterized with proton nuclear magnetic resonance (1H-NMR) and Fourier transform infrared (FTIR) spectroscopy. Silica nanoparticles were surface modified with the above QASiC and the structure of silanized products (S.QASiC) was confirmed by means of FTIR and thermogravimetric analysis. The obtained S.QASiC were then incorporated into methacrylate based dental resins. Scanning electron microscopy images revealed a satisfactory dispersion of silica nanoclusters for most of the synthesized nanocomposites. Curing kinetics disclosed a rise in both the autoacceleration effect and degree of conversion mainly induced by shorter QASiC molecules. Polymerization shrinkage was found to be influenced by the particular type of S.QASiC. The flexural modulus and strength of composites were increased by 74% and 19%, while their compressive strength enhancement reached up to 19% by adding 22 wt% S.QASiC nanoparticles. These findings might contribute to the proper design of multifunctional dental materials able to meet the contemporary challenges in clinical practice. |
| Γλώσσα: | Αγγλικά |
| Σελίδες: | 25 |
| DOI: | 10.3390/polym13111682 |
| EISSN: | 2073-4360 |
| Θεματική κατηγορία: | [EL] Βιο- υλικά[EN] Biomaterials |
| Λέξεις-κλειδιά: | Dental nanocomposite resins; dental materials; nanosilica; organosilanes; quaternary ammonium compounds |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland |
| Όροι και προϋποθέσεις δικαιωμάτων: | This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). |
| Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη: | https://www.mdpi.com/2073-4360/13/11/1682 |
| Ηλεκτρονική διεύθυνση περιοδικού: | https://www.mdpi.com/journal/polymers |
| Τίτλος πηγής δημοσίευσης: | Polymers |
| Τεύχος: | 11 |
| Τόμος: | 13 |
| Σελίδες τεκμηρίου (στην πηγή): | Article no 1682 |
| Σημειώσεις: | This research is co-financed by Greece and the European Union (European Social Fund- ESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning» in the context of the project “Reinforcement of Postdoctoral Researchers—2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ). |
| Εμφανίζεται στις συλλογές: | Μεταδιδακτορικοί ερευνητές |
Αρχεία σε αυτό το τεκμήριο:
| Αρχείο | Περιγραφή | Σελίδες | Μέγεθος | Μορφότυπος | Έκδοση | Άδεια | |
|---|---|---|---|---|---|---|---|
| polymers-13-01682-v3.pdf | 6.6 MB | Adobe PDF | - |  | Δείτε/ανοίξτε |