一种基于Zr的金属有机框架药物释放系统,具有持久的抗菌行为,可加速伤口愈合
Hui-Qian Zheng1, Han-Xiao Feng1, Bing-Xin Li1
1College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, P. R. China. linzujin@fafu.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|November 8, 2024
概括
一种新的药物递送系统,CIP@SU-102,有效释放西普洛素,对常见和耐药细菌产生持续的抗菌作用. 这种金属有机框架增强了伤口愈合,并提供了一个有希望的,持久的抗菌疗法.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 抗生素化疗是细菌感染的主要治疗方法,但面临着快速清除药物和耐药性等挑战.
- 开发可控和持续的药物释放系统对于提高治疗疗效和克服传统抗生素治疗的局限性至关重要.
研究的目的:
- 开发一种新的药物释放系统,CIP@SU-102,具有优越和长期的抗菌活性.
- 研究将西普洛素封装到基于Zr的金属有机框架 (SU-102) 中,以控制释放.
主要方法:
- 通过离子交换封装,制造CIP@SU-102的普洛克萨进入SU-102.
- 在体外抗微生物测定对格拉姆阴性 (大肠杆菌) 和格拉姆阳性 (金黄色葡萄球菌,MRSA) 细菌.
- 在体内测试以评估受感染的伤口愈合加速.
主要成果:
- CIP@SU-102显示出高负载能力 (33.3%) 和高效率 (66.8%) 的西普洛素.
- 对大肠杆菌,黄金杆菌和MRSA的持续抗菌活性超过20天.
- 由于持续的药物释放,体内感染伤口愈合的显著加速.
结论:
- CIP@SU-102表现出优越的,持久的抗菌疗效,并促进伤口愈合.
- 基于金属有机框架的系统为持续的抗微生物治疗提供了一个有希望的,具有成本效益的和生物相容的方法.
- 这突显了基于MOF的系统在先进的抗菌治疗和临床应用中的潜力.
更多相关视频
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: Classification
Modified-release drug delivery systems improve drug efficacy and minimize side effects by controlling the rate and location of drug release. These systems fall into three categories: rate-programmed, stimuli-activated, and site-targeted.Rate-programmed systems release drugs at a predetermined rate, maintaining consistent therapeutic levels and reducing fluctuations that could lead to toxicity or subtherapeutic effects. These systems use polymeric matrices, reservoir-based designs, or osmotic...
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...
Oral Drug Delivery Systems: Continuous-Release Systems
Continuous-release drug delivery systems offer a strategic approach to maintaining therapeutic drug levels over extended periods following oral administration. By modulating the release rate of active pharmaceutical ingredients, these systems minimize fluctuations in plasma concentrations, which enhances clinical efficacy and reduces the need for frequent dosing. Such characteristics make them particularly advantageous in managing chronic diseases where patient adherence and stable drug...
Oral Drug Delivery Systems: Delayed-Release Systems
Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...


