Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Surfactant‐Free Stable Aqueous Shortwave Infrared Amphiphilic π‐Conjugated Polymer Nanoparticles
Δημιουργός/Συγγραφέας:	Schiza, Andriana Nega, Alkmini Dimitrakopoulou‐Strauss, Antonia [EL] Γρηγορίου, Βασίλης Γ.[EN] Gregoriou, Vasilis G. [EL] Χώχος, Χρήστος[EN] Chochos, Christos
Χορηγός :	German Cancer Research Center
Ημερομηνία:	2025
Γλώσσα:	Αγγλικά
ISSN:	1022-1336 1521-3927
DOI:	10.1002/marc.202400739
Περίληψη:	Novel amphiphilic π-conjugated polymer nanoparticles tailored to efficiently absorb in the near-infrared II (NIR-II) region of the electromagnetic spectrum (>1000 nm) are presented. To achieve this, it is statistically introduced triethylene glycol substituted bithiophene moieties in various contents into a polymer backbone consisting of alternating thiophene and [1,2,5]thiadiazolo[3,4-g]quinoxaline. Through systematic modifications of monomer ratios, four amphiphilic conjugated polymers are produced. The presence of hydrophilic side chain, like triethylene glycol monomethyl ether, enhanced the polymer's concentration in aqueous media of up to 470%, versus the D-A thiophene and [1,2,5]thiadiazolo[3,4-g]quinoxaline hydrophobic analog polymer, enabling the production of surfactant-free conjugated polymer nanoparticles (CPNs) with higher concentrations (20.3 ppm maximum). Subsequently, the impact of this structural fine-tuning on the optical properties of the polymers and their corresponding CPNs are meticulous investigated. In both cases, it is identified the minimum bithiophene content that maintained the absorption spectra above 1000 nm at significantly higher concentrations. So, these findings contribute to the extensive prospects of these materials in multiple fields including biomedical and optoelectronic applications.
Τίτλος πηγής δημοσίευσης:	Macromolecular Rapid Communications
Θεματική Κατηγορία:	[EL] Νανοτεχνολογία[EN] Nanotechnology [EL] Οπτική. Φώς[EN] Optics. Light [EL] Χημική τεχνολογία[EN] Chemical technolgy [EL] Χημικά προϊόντα: Παραγωγή, χρήση κλπ[EN] Chemicals: Manufacture, use etc. [EL] Φασματοσκοπία[EN] Spectroscopy [EL] Βιοιατρική μηχανική. Ηλεκτρονική. Ενοργάνιση[EN] Biomedical engineering. Electronics. Instrumentation
Λέξεις-Κλειδιά:	conjugated polymer photothermal polymer nanoparticles shortwave infrared sustainable solvents
Κάτοχος πνευματικών δικαιωμάτων:	© 2025 Wiley-VCH GmbH
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1002/marc.202400739
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο