使用碳水化合物聚合物的刺激响应传递系统:一项审查.
Hossein Madineh1, Fatemeh Mansourinia1, Payam Zarrintaj2
1Polymer Engineering Department, Chemical Engineering Faculty, Tarbiat Modares University, Tehran, Iran.
International journal of biological macromolecules
|April 2, 2025
概括
刺激敏感的碳水化合物聚合物,如素和纤维素提供先进的药物输送. 这些生物聚合物能够控制释放,针对特定环境,以提高治疗效果.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 药物输送系统 药物输送系统
背景情况:
- 碳水化合物聚合物,如奇托,纤维素和酸盐,因其作为刺激响应生物聚合物的潜力而得到认可.
- 这些材料可以被设计为响应pH,温度和酶活性等环境线索.
- 它们的独特特性使得它们非常适合复杂的药物输送应用.
研究的目的:
- 审查刺激反应性碳水化合物聚合物的在药物输送中的应用.
- 突出这些生物聚合物促进可控和向药物释放的机制.
- 讨论基于碳水化合物聚合物的药物输送系统的进展和未来方向.
主要方法:
- 文献综述侧重于对刺激有反应的碳水化合物聚合物 (花素,纤维素,酸盐).
- 对不同刺激反应机制 (pH,温度,光,氧化还原,电磁) 的分析.
- 检查这些机制如何有助于控制和有针对性的药物释放.
主要成果:
- 响应刺激的生物聚合物加速控制的药物释放.
- 响应pH的系统针对酸性瘤微环境.
- 温度响应系统通过高热度提供精确的控制;光响应系统提供空间/时间控制.
- 反氧化,电磁和磁性响应系统提供有针对性的释放和远程控制功能.
- 多刺激响应系统在药物输送多功能性方面取得了重大进展.
结论:
- 对刺激有反应的碳水化合物聚合物对受控和向的药物输送是有效的.
- 优化聚合物特性和整合多功能部分对于未来的进步至关重要.
- 进一步的研究应侧重于提高响应能力和针对更广泛的治疗应用的有效性.
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...
Drug Delivery Systems: Different Types
Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...
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...
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...


