TY - JOUR TI - Chitosan-stabilized silver nanoclusters with luminescent, photothermal and antibacterial properties AU - Nakal-Chidiac, Alberto AU - García, Olga AU - García-Fernández, Luis AU - Martín-Saavedra, Francisco M. AU - Sánchez-Casanova, Silvia AU - Escudero-Duch, Clara AU - San Román, Julio AU - Vilaboa, Nuria AU - Aguilar, María Rosa T2 - Carbohydrate Polymers AB - The aim of this paper is to achieve in situ photochemical synthesis of silver nanoclusters (AgNCs) stabilized by the multiple-amine groups of chitosan (Ch@AgNCs) with luminescent and photothermal properties. Ch@AgNCs were obtained by applying a fast and simple methodology previously described by our group. Direct functionalization of AgNCs with chitosan template provided new nanohybrids directly in water solution, both in the presence or absence of oxygen. The formation of hybrid AgNCs could be monitored by the rapid increase of the absorption and emission maximum band with light irradiation time. New Ch@AgNCs not only present photoluminescent properties but also photothermal properties when irradiated with near infrared light (NIR), transducing efficiently NIR into heat and increasing the temperature of the medium up to 23 °C. The chitosan polymeric shell associated to AgNCs works as a protective support stabilizing the metal cores, facilitating the storage of nanohybrids and preserving luminescent, photothermal and bactericide properties. DA - 2020/12/15/ PY - 2020 DO - 10.1016/j.carbpol.2020.116973 DP - ScienceDirect VL - 250 SP - 116973 J2 - Carbohydrate Polymers LA - en SN - 0144-8617 UR - http://www.sciencedirect.com/science/article/pii/S0144861720311462 Y2 - 2020/10/20/08:14:14 KW - Chitosan KW - Hybrid nanomaterials KW - Luminescent nanoclusters KW - Photothermal properties KW - Silver nanohybrids ER -