Catch and Release Chemotaxis
Catch and Release Chemotaxis
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DOI：
10.1002/syst.202100031
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发表时间：
2021-11
期刊：
影响因子：
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通讯作者：
Yusuke Yasugahira;Yuki Tatsumi;Osamu Yamanaka;H. Nishimori;M. Nagayama;S. Nakata
中科院分区：
文献类型：
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作者：
Yusuke Yasugahira;Yuki Tatsumi;Osamu Yamanaka;H. Nishimori;M. Nagayama;S. Nakata
利用漂浮在水面上的自推进6 -甲基香豆素（6 - MC）圆盘研究了趋化性的捕获和释放。在水相底部放置一片na3po4作为化学刺激物。利用6 - MC片和na3po4片实现了抓放趋化性的重复，即表面张力空间梯度的交替反转。使用两个6 - MC圆盘和一片na3po4片观察到交替的趋化性。本文从na3po4的加入对6‐MC水相表面张力的影响、溶解碱在水相中的空间浓度梯度、6‐MC与OH−的化学反应等方面探讨了6‐MC的趋化性捕获和释放机理。了解这种类型的趋化系统可以阐明生物体的趋化行为。
Catch and release chemotaxis was studied by using a self‐propelled 6‐methylcoumarin (6‐MC) disk floating on water. A tablet of Na3PO4placed at the bottom of the water phase acted as a chemical stimulus. The repetition of catch and release chemotaxis, that is, the alternating inversion of the spatial gradient of surface tension, was realized using one 6‐MC disk and one Na3PO4tablet. Alternating catch and release chemotaxis was observed using two 6‐MC disks and one Na3PO4tablet. The mechanism of catch and release chemotaxis is discussed in relation to the change in the surface tension of the 6‐MC aqueous phase following the addition of Na3PO4as the driving force, the spatial concentration gradient of the base dissolved from the tablet in the water phase, and the chemical reaction between 6‐MC and OH−. Understanding this type of chemotaxis system can elucidate the chemotaxis behaviors of living organisms.