异质传感器载体微群用于协作精确的药物输送到未知的目标与局部酸性疾病
Shuming Zhang1, Fangzhi Mou1, Zheng Yu1
1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
Nano letters
|May 13, 2024
概括
研究人员开发了智能微机器人,它们可以协同工作,寻找和治疗疾病部位. 这种群体技术能够精确地将药物输送到未知的地区,从而改善医疗治疗.
科学领域:
- 生物医学工程 生物医学工程
- 机器人技术 机器人技术 机器人技术
- 纳米技术 纳米技术
背景情况:
- 微型/纳米机器人在具有挑战性的环境中提供了高级生物医学任务的潜力.
- 精确的药物输送到未识别的疾病部位使用小规模的微型/纳米机器人是一个重大障碍.
研究的目的:
- 开发一个协作微机器人群,精确地向未知的疾病部位输送药物.
- 创建一个能够基于环境线索自主检测,定位和处理目标的系统.
主要方法:
- 设计了一组异质的传感微机器人 (传感器机器人) 和携带药物的微机器人 (载体机器人).
- 利用跨种类的水力动力相互作用来实现自发的同步和自我组织,形成稳定的微群.
- 在传感器机器人中采用pH响应的结构颜色变化来实时绘制pH图.
- 具有pH响应电荷逆转的工程载体机器人,用于对酸性目标的选择性粘附.
主要成果:
- 传感器机器人和载体机器人形成了稳定,同步的异质微群.
- 微群成功地检测并定位了未知环境中的未知酸性目标.
- 该系统引导群体覆盖目标区域,并精确地部署治疗载体机器人.
- 证明载体机器人对酸性目标的选择性粘附.
结论:
- 开发的传感器载体微群能够精确地将药物输送到局部酸性疾病部位.
- 这个平台对治疗局部性酸性病的疾病有很大的希望.
- 这项技术激发了未来的灵活性和效率提高的微观系统.
更多相关视频
相关概念视频
01:30Modified-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...
01:24Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
01:24Site-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...