Lis Kamila, Szechyńska Joanna, Träger Dominika, Sadlik Julia, Niziołek Karina, Słota Dagmara, Jampilek Josef, Sobczak-Kupiec Agnieszka
Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31-864 Krakow, Poland.
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Cracow, 8 Niezapominajek, 30-239 Krakow, Poland.
Materials (Basel). 2023 Dec 22;17(1):58. doi: 10.3390/ma17010058.
In recent years, significant developments have taken place in scientific fields such as tissue and materials engineering, which allow for the development of new, intelligent biomaterials. An example of such biomaterials is drug delivery systems that release the active substance directly at the site where the therapeutic effect is required. In this research, polymeric materials and ceramic-polymer composites were developed as carriers for the antibiotic clindamycin. The preparation and characterization of biomaterials based on hyaluronic acid, collagen, and nano brushite obtained using the photocrosslinking technique under UV (ultraviolet) light are described. Physical and chemical analyses of the materials obtained were carried out using Fourier transform infrared spectroscopy (FT-IR) and optical microscopy. The sorption capacities were determined and subjected to in vitro incubation in simulated biological environments such as Ringer's solution, simulated body fluid (SBF), phosphate-buffered saline (PBS), and distilled water. The antibiotic release rate was also measured. The study confirmed higher swelling capacity for materials with no addition of a ceramic phase, thus it can be concluded that brushite inhibits the penetration of the liquid medium into the interior of the samples, leading to faster absorption of the liquid medium. In addition, incubation tests confirmed preliminary biocompatibility. No drastic changes in pH values were observed, which suggests that the materials are stable under these conditions. The release rate of the antibiotic from the biomaterial into the incubation medium was determined using high-pressure liquid chromatography (HPLC). The concentration of the antibiotic in the incubation fluid increased steadily following a 14-day incubation in PBS, indicating continuous antibiotic release. Based on the results, it can be concluded that the developed polymeric material demonstrates potential for use as a carrier for the active substance.
近年来,组织与材料工程等科学领域取得了重大进展,这使得新型智能生物材料得以研发。这类生物材料的一个例子是药物递送系统,它能在需要治疗效果的部位直接释放活性物质。在本研究中,开发了聚合物材料和陶瓷 - 聚合物复合材料作为抗生素克林霉素的载体。描述了基于透明质酸、胶原蛋白和通过紫外光光交联技术获得的纳米透钙磷石的生物材料的制备与表征。使用傅里叶变换红外光谱(FT - IR)和光学显微镜对所得材料进行物理和化学分析。测定了吸附容量,并在模拟生物环境如林格氏溶液、模拟体液(SBF)、磷酸盐缓冲盐水(PBS)和蒸馏水中进行体外孵育。还测量了抗生素释放速率。研究证实,未添加陶瓷相的材料具有更高的溶胀能力,因此可以得出结论,透钙磷石抑制了液体介质渗透到样品内部,导致液体介质吸收更快。此外,孵育试验证实了初步的生物相容性。未观察到pH值的剧烈变化,这表明材料在这些条件下是稳定的。使用高压液相色谱(HPLC)测定抗生素从生物材料释放到孵育介质中的速率。在PBS中孵育14天后,孵育液中抗生素的浓度稳步增加,表明抗生素持续释放。基于这些结果,可以得出结论,所开发的聚合物材料具有作为活性物质载体的应用潜力。
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