活体体系统中的密度调制通过正交推进控制和感觉延迟来实现
Ueli Töpfer1, Maximilian R Bailey1, Sanjay Schreiber1
1Department of Materials, ETH Zurich, 8093 Zurich, Switzerland.
ACS nano
|October 27, 2025
概括
研究人员开发了自适应的Janus微游泳器,可以根据光线和化学物质自主调整速度. 这种感官延迟增强了微游泳者定位,模仿生物系统,用于先进的活性物质应用.
科学领域:
- 体科学是一种体科学.
- 活动物质物理学 活动物质物理学
- 微流体学 微流体学
背景情况:
- 活性体系统和合成微游泳器的灵感来源于生物对应物.
- 目前的系统通常需要外部控制以实现适应性运动.
- 响应环境刺激的自主自我调节是一个关键的挑战.
研究的目的:
- 开发具有自主自适应推进的Janus微游泳器.
- 为了研究这些微游泳器对不同照明和化学剂的反应.
- 探索感官延迟在微游泳者行为和定位中的作用.
主要方法:
- 斯微粒 (/泰坦尼亚) 的制造.
- 利用电动力流和诱导电荷电泳来进行推进.
- 应用均的交流电场和紫外线照明.
- 引入化学剂 (甲醇) 来改变粒子动态.
主要成果:
- 詹纳斯微游泳器证明了依赖光的推进速度调节.
- 泰坦的光导性使得可以在紫外线下自主调节速度.
- 观察到速度适应的有限感官延迟.
- 颗粒物显示了度依赖于甲醇的反应时间适应.
- 由于感官延迟,实现了增强的微游泳者定位.
结论:
- 发达的微游泳者表现出对环境刺激 (光,化学物质) 的自主适应.
- 感官延迟增强了局部化,模仿生物微游泳者策略.
- 新型适应性活性物质系统和微设备的潜力.
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