交叉连接的混合聚合物/陶复合涂层,用于可控释放克林达米
Dagmara Słota1, Mateusz M Urbaniak2,3, Agata Tomaszewska2,4
1Cracow University of Technology, CUT Doctoral School, Faculty of Materials Engineering and Physics, Department of Materials Engineering, 37 Jana Pawła II Av., 31 864 Kraków, Poland. dagmara.slota@pk.edu.pl.
Biomaterials science
|September 5, 2024
概括
新的聚合物陶涂层提供克林达米辛,以防止骨再生中的手术部位感染. 这些产生药物的生物材料显示出有前途的抗微生物和细胞相容性质,可增强骨愈合.
科学领域:
- 生物材料科学 生物材料科学
- 整形外科手术 整形外科手术
- 传染性疾病 传染性疾病
背景情况:
- 手术部位感染是骨组织手术的重要风险.
- 抗生素治疗对于预防这种感染至关重要.
- 需要新的药物输送系统,以有效控制骨再生中的感染.
研究的目的:
- 开发和评估用克林达米辛修饰的聚合物-陶混合复合涂料.
- 评估涂料在骨再生疗法和感染预防方面的潜力.
- 为了研究药物释放动力学和抗微生物疗效.
主要方法:
- 紫外线光照相交联,以创建混合复合材料涂层.
- 吸附能力评估 (PBS中的膨胀).
- 使用高性能液态染色学 (HPLC) 进行药物释放分析.
- 通过扫描电子显微镜 (SEM) 和能量分散式X射线光谱 (EDS) 进行表面表征.
- 针对金黄色葡萄球菌的抗菌检测.
- 使用MTT测定对L929和hFOB细胞进行细胞相容性评估.
主要成果:
- 涂层显示了可控的克林达胺素释放,与吸附能力相关.
- SEM和EDS证实了材料的完整性和药物存在.
- 观察到对黄金葡萄球菌有有效的抗菌活性.
- 开发的涂层对纤维细胞和骨质细胞细胞系没有细胞毒性.
结论:
- 开发的聚合物 - 陶混合涂层显示出作为药物载体的潜力,用于骨应用中的克林达米辛输送.
- 这些生物材料在骨再生疗法中为预防手术部位感染提供了有希望的策略.
- 需要进一步的体内研究来证实临床疗效.
相关概念视频
Modified-Release Drug Delivery Systems: Rate-Programmed II
Rate-programmed drug delivery systems release drugs in a controlled manner to maintain therapeutic levels. Three main designs include reservoir, matrix, and hybrid systems.Reservoir systems consist of a drug core enclosed within a membrane that controls drug release. In non-swelling reservoir systems, polymers like ethyl cellulose or polymethacrylates are used. These do not hydrate in aqueous media and control release through membrane thickness, porosity, or insolubility. This type includes...
Modified-Release Drug Delivery Systems: Rate-Programmed I
Rate-programmed drug delivery systems (DDS) are designed to release drugs at specific, controlled rates to maintain consistent therapeutic levels. These systems are categorized based on their release mechanisms, including dissolution-controlled DDS, diffusion-controlled DDS, and combined dissolution-diffusion-controlled DDS.In dissolution-controlled DDS, the release rate depends on the slow dissolution of the drug itself or the surrounding matrix. Drugs with inherently slow dissolution rates,...
Modified-Release Drug Delivery Systems: Stimuli-Activated
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...


