1. Silan Ajanları ile Modifiye Edilmiş Montmorillonit Katkılı Polimerik Kompozit Filmlerin Üretilmesi ve Karakterizasyonu.
- Author
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ESKİTOROS TOGAY, Şükran Melda, YEŞİLYURT, Esma Aleyna, and ÇÖRTOĞLU, Sema
- Abstract
In this study, montmorillonite (MMT), used as filler, was modified with two different silane agents ((3-aminopropyl)triethoxysilane (APTES) and (3-glycidoxypropyl)trimethoxysilane (GPTMS)) to increase the interfacial interaction with the organic phase and ensure homogeneous distribution in the polymer matrix. As polymer matrix, polycaprolactone (PCL), a synthetic polymer with biodegradable and biocompatible properties, and polyvinylpyrrolidone (PVP), a biocompatible and hydrophilic polymer, were used together and biomaterials were produced by solution casting method. The morphological, physicochemical and mechanical properties of the biomaterials proposed for use as scaffolds for bone tissue engineering were characterized by atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), contact angle analysis, water absorption capacity analysis and mechanical analysis. AFM results showed that the roughness of the PCL/PVP polymer matrix decreased from 0.507 µm to 0.171 µm with the addition of unmodified MMT and to 0.160 µm with the addition of MMT-APTES. The highest roughness ratio was found to be 0.530 µm in GPTMS-modified MMT doped biomaterials. When contact angle values and water absorption capacities were compared, it was observed that APTES and GPTMS-modified MMT doped biomaterials with contact angles of 68.4° and 59.7° were more hydrophilic than the biomaterial without MMT and the water absorption capacity was 125% and 144% higher than the polymer matrix without MMT and the unmodified biomaterial. In conclusion, this preliminary study suggests that APTES-modified MMT doped PCL/PVP biomaterials can be used as tissue scaffolds in the treatment of bone tissue damage. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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