Preparation of functionalized polymer nanomaterials and application in renal injury

Abstract

Renal injury, which is a prevalent condition, significantly impacts the health of competitive wrestlers. However, there is a limited number of therapeutic methods and drugs available for its treatment. To tackle this issue, a renal targeted drug based on functionalized polymer nanoparticles (FPNPs) is being studied. The primary methods in the preparation of FPNPs involve utilizing the thin film hydration technique to create nanoparticles and encapsulating the drug TP within them as a treatment for renal injury, thus forming TP-FPNPs. Subsequently, the renal targeting of TP-FPNPs is analyzed using in vitro organ fluorescence imaging techniques. Furthermore, a renal IRI model is constructed to assess the pharmacokinetics of TP-FPNPs using the application method. The preparation results of TP-FPNPs reveal a hydrated particle size of approximately 90 nm, which remains in the renal region for over 48 hours. Additionally, the concentration content surpasses that of other organs by more than threefold after 12 hours. Moreover, in the application results, TP-FPNPs continue to possess a concentration of 302.5 ng/g even after 48 hours post-injection. Based on the aforementioned results, it can be concluded that TP-FPNPs exhibit specific targeting, biocompatibility, and an extended retention time. Thus, this study is expected to effectively achieve the effect of treating renal injury in martial arts athletes, establishing an experimental foundation for its clinical treatment.