Phillips Neil, Draper Thomas C, Mayne Richard, Adamatzky Andrew
1Unconventional Computing Laboratory, University of the West of England, Coldharbour Lane, Bristol, BS16 1QY UK.
2Department of Applied Sciences, University of the West of England, Bristol, BS16 1QY UK.
J Biol Eng. 2019 Sep 3;13:72. doi: 10.1186/s13036-019-0200-5. eCollection 2019.
The green algae balls (), known as Marimo, are large spherical colonies of live photosynthetic filaments, formed by rolling water currents in freshwater lakes. Photosynthesis therein produces gas bubbles that can attach to the Marimo, consequently changing its buoyancy. This property allows them to float in the presence of light and sink in its absence.
We demonstrate that this ability can be harnessed to make actuators, biosensors and bioprocessors (oscillator, logic gates). Factors affecting Marimo movement have been studied to enable the design, construction and testing of working prototypes.
A novel actuator design is reported, incorporating an enhanced bubble retention system and the design and optimisation of a bio-oscillator is demonstrated. A range of logic gates (or, and, nor, nand, xor) implementable with Marimo have been proposed.
绿藻球（俗称球藻）是由淡水湖泊中滚动的水流形成的大型球形光合丝状活体群落。其中的光合作用会产生气泡，这些气泡可以附着在绿藻球上，从而改变其浮力。这一特性使它们在有光时漂浮，无光时下沉。
我们证明了这种能力可用于制造致动器、生物传感器和生物处理器（振荡器、逻辑门）。已经研究了影响绿藻球运动的因素，以便设计、构建和测试工作原型。
报道了一种新颖的致动器设计，该设计包含增强的气泡保留系统，并展示了生物振荡器的设计和优化。已经提出了一系列可用绿藻球实现的逻辑门（或门、与门、或非门、与非门、异或门）。
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