Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Preparation and Physicochemical Evaluation of Ionically Cross-Linked Chitosan Nanoparticles Intended for Agricultural Use
Δημιουργός/Συγγραφέας:	Karayianni, Maria Haladjova, Emi Rangelov, Stanislav [EL] Πίσπας, Στέργιος[EN] Pispas, Stergios
Ημερομηνία:	2025
Γλώσσα:	Αγγλικά
ISSN:	2673-4176
DOI:	10.3390/polysaccharides6030067
Περίληψη:	The search for sustainable, economically viable, and effective plant protection strategies against pathogenic bacteria, fungi, and viruses is a major challenge in modern agricultural practices. Chitosan (CS) is an abundant cationic natural biopolymer known for its biocompatibility, low toxicity, and antimicrobial properties. Its potential use in agriculture for pathogen control is a promising alternative to traditional chemical fertilisers and pesticides, which raise concerns regarding public health, environmental protection, and pesticide resistance. This study focused on the preparation of chitosan nanoparticles (CS-NPs) through cross-linking with organic molecules, such as tannic acid (TA). Various formulations were explored for the development of stable nanoscale particles having encapsulation capabilities towards low compounds of varying polarity and with potential agricultural applications relevant to plant health and growth. The solution properties of the NPs were assessed using dynamic and electrophoretic light scattering (DLS and ELS); their morphology was observed through atomic force microscopy (AFM), while analytical ultracentrifugation (AUC) measurements provided insights into their molar mass. Their properties proved to be primarily influenced by the concentration of CS, which significantly affected its intrinsic conformation. Additional structural insights were obtained via infrared and UV–Vis spectroscopic measurements, while detailed fluorescence analysis with the use of three different probes, as model cargo molecules, provided information regarding the hydrophobic and hydrophilic microdomains within the particles.
Τίτλος πηγής δημοσίευσης:	Polysaccharides
Τόμος/Κεφάλαιο:	6
Τεύχος:	3
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Νανοτεχνολογία[EN] Nanotechnology [EL] Βιοτεχνολογία[EN] Biotechnology
Λέξεις-Κλειδιά:	chitosan nanoparticles tannic acid ionotropic gelation physicochemical properties
Χρηματοδότης:	European Regional Development Fund Greece
Χρηματοδοτικό πρόγραμμα:	NANOSHIELD (Τ2ЕDΚ−02113)
Κάτοχος πνευματικών δικαιωμάτων:	© 2025 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/polysaccharides6030067
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο