RT Journal Article T1 Evaluating Non-Conventional Chitosan Sources for Controlled Release of Risperidone A1 Garcinuño, Sara A1 Aranaz Corral, Inmaculada A1 Civera Tejuca, María Concepción A1 Arias García, Concepción A1 Acosta Contreras, Florentina Niuris AB In this work, two chitosan samples from cuttlebone and squid pen are produced and characterized. We studied the formation of thermoresponsive hydrogels with β-glycerol phosphate and found proper formulations that form the hydrogels at 37 °C. Gel formation depended on the chitosan source being possible to produce the thermoresponsive hydrogels at chitosan concentration of 1% with cuttlebone chitosan but 1.5% was needed for squid pen. For the first time, these non-commercial chitosan sources have been used in combination with β-glycerol phosphate to prepare risperidone formulations for controlled drug delivery. Three types of formulations for risperidone-controlled release have been developed, in-situ gelling formulations, hydrogels and xerogels. The release profiles show that in-situ gelling formulations and particularly hydrogels allow an extended control release of risperidone while xerogels are not appropriate formulations for this end since risperidone was completely released in 48 h. SN 2073-4360 YR 2022 FD 2022 LK https://hdl.handle.net/20.500.14352/96621 UL https://hdl.handle.net/20.500.14352/96621 LA eng NO Garcinuño S, Aranaz I, Civera C, Arias C, Acosta N. Evaluating Non-Conventional Chitosan Sources for Controlled Release of Risperidone. Polymers 2022;14:1355. https://doi.org/10.3390/polym14071355. NO Ministerio de Ciencia e Innovación (España) DS Docta Complutense RD 19 abr 2025