Surface Acoustic Waves to Drive Plant Transpiration.
Surface Acoustic Waves to Drive Plant Transpiration.
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DOI：
10.1038/srep45864
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发表时间：
2017-03-31
影响因子：
4.6
通讯作者：
Simon DT
中科院分区：
文献类型：
--
作者：
Gomez EF;Berggren M;Simon DT
电子植物（e-plants）和农业纳米技术的新兴研究领域寻求对植物及其产品进行更先进的控制。电子/纳米技术植物系统致力于无缝监控，收获或传递化学信号，以受控方式感知或调节植物生理。由于植物维管系统（木质部/韧皮部）是用于运输水、营养物质和化学信号的主要途径，也是当前电子植物和phtyo纳米技术工作的主要载体，我们寻求利用外部能量直接控制植物中的流体运输。从压电基板产生的表面声波直接耦合到玫瑰叶，从而导致水快速蒸发，在一个高度本地化的方式，只有在与致动器接触的网站。从荧光成像中，我们发现该技术可以可靠地将高达6倍的水/溶质输送到由声能驱动的地点，这是正常植物蒸腾速率的6倍，是热辅助蒸发的2倍。通过声能增加天然植物蒸腾的技术可用于以高时空分辨率将生物分子、农用化学品或未来的电子材料递送到植物中的目标区域;提供与植物生理学更好的相互作用或实现更复杂的半机械系统。
Emerging fields of research in electronic plants (e-plants) and agro-nanotechnology seek to create more advanced control of plants and their products. Electronic/nanotechnology plant systems strive to seamlessly monitor, harvest, or deliver chemical signals to sense or regulate plant physiology in a controlled manner. Since the plant vascular system (xylem/phloem) is the primary pathway used to transport water, nutrients, and chemical signals—as well as the primary vehicle for current e-plant and phtyo-nanotechnology work—we seek to directly control fluid transport in plants using external energy. Surface acoustic waves generated from piezoelectric substrates were directly coupled into rose leaves, thereby causing water to rapidly evaporate in a highly localized manner only at the site in contact with the actuator. From fluorescent imaging, we find that the technique reliably delivers up to 6x more water/solute to the site actuated by acoustic energy as compared to normal plant transpiration rates and 2x more than heat-assisted evaporation. The technique of increasing natural plant transpiration through acoustic energy could be used to deliver biomolecules, agrochemicals, or future electronic materials at high spatiotemporal resolution to targeted areas in the plant; providing better interaction with plant physiology or to realize more sophisticated cyborg systems.