“…Several studies have demonstrated the efficacy of hydrophobic materials such as ethyl cellulose, polycaprolactone (PCL), poly (lactic-co-glycolic acid), and polylactic acid in sustaining drug release ( Sánchez-Romate et al, 2020 ; Ahmadi et al, 2022 ; Wang S. et al, 2022 ; Dodda et al, 2022 ; Lee et al, 2022 ; Vlachopoulos et al, 2022 ). PCL, a hydrophobic material processing good biocompatibility, is extensively involved in the preparation of biomedical materials ( Jiménez-Suárez et al, 2020 ; Bazzolo et al, 2021 ; Sánchez-Romate et al, 2021 ; Baghali et al, 2022 ; Setia Budi et al, 2022 ; Shahverdi et al, 2022 ). In the treatment of osteoporosis, simvastatin (SIM) has been exploited for inducing bone regeneration ( Castro et al, 2018 ; Rezk et al, 2020 ; Karanikola et al, 2022 ).…”