Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	New conjugated polymer nanoparticles with high photoluminescence quantum yields for far-red and near infrared fluorescence bioimaging
Δημιουργός/Συγγραφέας:	Koralli, Panagiota D. Nega, Alkmini Vagiaki, Lida Evmorfia Pavlou, Aristea Siskos, Michael G. Dimitrakopoulou-Strauss, Antonia [EL] Γρηγορίου, Βασίλης Γ.[EN] Gregoriou, Vasilis G. [EL] Χώχος, Χρήστος[EN] Chochos, Christos
Ημερομηνία:	2020
Γλώσσα:	Αγγλικά
ISSN:	2052-1537
DOI:	10.1039/D0QM00195C
Περίληψη:	The development of new aqueous conjugated polymer nanoparticles with high photoluminescence quantum yields (PLQYs) at the far red and near infrared (NIR) spectral regions (>650 nm) as alternative polymer probes for fluorescence imaging is reported. This is achieved through an appropriate chemical design by the introduction of up to four fluorine atoms in the different positions of a donor–acceptor (D–A) polymer backbone consisting of thiophene as the electron donating unit and quinoxaline as the electron withdrawing building block. The resulting series of low synthetic complexity conjugated polymers enable us to perform a detailed structure–properties relationship study between the synthesized conjugated polymers and their corresponding aqueous nanoparticles as prepared by the nanoprecipitation and encapsulation methods. We manage to achieve PLQY for aqueous NIR conjugated polymer probes of 0.1 and a PLQY of 0.18 for the far-red emitting conjugated polymer probes. Furthermore, our work paves the way for the rational design of new conjugated polymers with enhanced PLQY, especially in the NIR spectral region, through better control of the intramolecular and intermolecular polymer chain interactions.
Τίτλος πηγής δημοσίευσης:	Materials Chemistry Frontiers
Τόμος/Κεφάλαιο:	4
Τεύχος:	8
Σελίδες:	2357-2369
Θεματική Κατηγορία:	[EL] Χημική Βιολογία[EN] Chemical Biology [EL] Χημεία (Γενικά)[EN] Chemistry (General) [EL] Βιοτεχνολογία[EN] Biotechnology [EL] Φυσική[EN] Physics
Λέξεις-Κλειδιά:	Nuclear magnetic resonance Dynamic light scattering (DLS) Conjugated polymers Nanoparticles
Κάτοχος πνευματικών δικαιωμάτων:	Copyright © 2020 The Partner Organisations
Ηλεκτρονική διεύθυνση περιοδικού (link) :	https://pubs.rsc.org/en/journals/journalissues/qm#!recentarticles&adv
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο