Sibel BARBAROS, Tuğba TECİM, RÜKAN GENÇ ALTÜRK

MAGNETIC NANOPARTICLE EMBEDDED STIMULI RESPONSIVE HYDROGELS AS ANTI-INFLAMMATORY DRUG CARRIERS

Bu çalışmada, manyetik aljinant taneleri, Süperparamanyetik demir oksit (Fe3O4) nanoparçacıkların, sentez sırasında sodyum aljinat mikrotaneleri içerisine entegre edilmesi ile sentezlenmiştir. Elde edildiği haliyle kurutulan örnekler, su tutma kapasiteleri ve ilaç enkapsülasyon verimliliği açısından analiz edilmiştir. Ayrıca, genellikle ameliyat sonrası eklem iltihaplanmalarının tedavisinde kullanılan bir anti inflamatuar ilaç (Sefazol), manyetik alan altında mikrokompozitlerin uyaranlara duyarlılık özelliklerinin değerlendirilmesi için model ilaç olarak kullanılmıştır. Bunun için, pH, sıcaklık ve manyetik alan gibi değişen ortam koşullarındaki ilaç salım kinetikleri incelenmiş ve boş aljinat taneleri ile karşılaştırılmıştır.

(UYARANLARA KARŞI DUYARLI, MANYETİK NANOPARÇACIK İÇERİKLİ HİDROJELLERİN ANTİ-ENFLAMATUAR İLAÇ TAŞIYICISI OLARAK KULLANIMI )

In this study, magnetic alginate beads were successfully synthesized by integrating superparamagnetic iron oxide nanoparticles (Fe3O4) in sodium alginate microbeads during the synthesis. The as-obtained dried samples were analyzed by means of their water detention capacity and drug encapsulation efficiency. Further, an anti-inflammatory drug (Cefazolin), mostly used for the treatment of joint inflammations after surgery, was used as a model drug in order to evaluate the stimuli-responsive properties of macrocomposites under magnetic field for the development of on-site drug delivery system. To do so, their drug release kinetics at changing environmental conditions, such as pH, temperature, and magnetic field were investigated and compared with bare alginate beads.

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