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甘甜的詹斯粒子:基于碳水化合物的细菌粘附的多功能抑制剂

Serap Üclü¹, Claudia Marschelke², Felictas Drees^1,3

¹Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany.

Biomacromolecules

|March 8, 2024

概括

新的Janus粒子 (JPs) 准细菌粘附受体,防止有害的大型细菌集群. 这些联合计划提供受控的单个细菌抑制和刺激诱导的聚合,以改善感染治疗策略.

科学领域:

生物材料科学生物材料科学
微生物学微生物学
纳米技术纳米技术

背景情况:

像大肠杆菌这样的细菌使用粘附受体 (例如FimH) 结合碳水化合物,启动殖民和感染.
多价值碳水化合物支架是有效的抑制剂,但可以导致有问题的大型细菌集群.
目前用于抑制细菌粘附的方法在控制细菌聚合方面面临挑战.

研究的目的:

开发新的Janus粒子 (JPs) 用于向抑制细菌粘附.
设计能够防止大型细菌集群形成的JP,同时允许控制聚合.
调查碳水化合物功能化JP作为细菌粘附抑制剂的疗效.

主要方法:

在一半球上合成了与含有曼诺斯的葡萄糖大分子功能化的Janus粒子.
附着的聚N-异烯胺 (PNIPAM) 到另一半球的温度依赖性质.
评估了JP与大肠杆菌的相互作用,并观察了不同温度下的细菌聚合行为.

主要成果:

糖功能化JP选择性地聚合了单个细菌,与形成大细菌群的同质颗粒不同.
由于PNIPAM的温度依赖性,可以进行受控的硬质屏蔽和随后的聚合诱导.
证明了第一次成功地使用碳水化合物功能化的JP来抑制细菌粘附和控制聚合.

结论:

碳水化合物功能化的JP提供了一种新的策略,可以通过受控的聚合来抑制细菌粘附.
这些JP通过外部刺激提供精确的单细菌抑制和可调节的集群形成.
开发的JP代表了比传统的碳水化合物功能化颗粒用于感染治疗的重大进步.

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