Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Hybrid Nanoparticles from Random Polyelectrolytes and Carbon Dots
Δημιουργός/Συγγραφέας:	Theodoropoulou, Sophia Vardaxi, Antiopi Kagkoura, Antonia [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos [EL] Πίσπας, Στέργιος[EN] Pispas, Stergios
Ημερομηνία:	2024-05-20
Γλώσσα:	Αγγλικά
ISSN:	1996-1944
DOI:	10.3390/ma17102462
Άλλο:	38793527
Περίληψη:	The present study concerns the preparation of hybrid nanostructures composed of carbon dots (CDs) synthesized in our lab and a double-hydrophilic poly(2-dimethylaminoethyl methacrylate-co-oligo(ethylene glycol) methyl ether methacrylate) (P(DMAEMA-co-OEGMA)) random copolymer through electrostatic interactions between the negatively charged CDs and the positively charged DMAEMA segments of the copolymer. The synthesis of P(DMAEMA-co-OEGMA) copolymer was conducted through RAFT polymerization. Furthermore, the copolymer was converted into a strong cationic random polyelectrolyte through quaternization of the amine groups of DMAEMA segments with methyl iodide (CH3I), and it was subsequently utilized for the complexation with the carbon dots. The molecular, physicochemical, and photophysical characterization of the aqueous solution of the copolymers and their hybrid nanoparticles was conducted using dynamic and electrophoretic light scattering (DLS, ELS) and spectroscopic techniques, such as UV-Vis, fluorescence (FS), and FT-IR spectroscopy. In addition, studies of their aqueous solution using DLS and ELS showed their responsiveness to external stimuli (pH, temperature, ionic strength). Finally, the interaction of selected hybrid nanoparticles with iron (III) ions was confirmed through FS spectroscopy, demonstrating their potential application for heavy metal ions sensing.
Τίτλος πηγής δημοσίευσης:	Materials (Basel, Switzerland)
Τόμος/Κεφάλαιο:	17
Τεύχος:	10
Θεματική Κατηγορία:	[EL] Νανοτεχνολογία[EN] Nanotechnology [EL] Χημεία[EN] Chemistry [EL] Φυσική[EN] Physics
Λέξεις-Κλειδιά:	RAFT polymerization carbon quantum dots complexes hybrid nanoparticles polyelectrolytes
Κάτοχος πνευματικών δικαιωμάτων:	© 2024 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 στον εκδότη (link):	https://doi.org/10.3390/ma17102462
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο