Closing a Venus Flytrap with electrical and mid-IR photon stimulations

Eisen, David; Janssen, Douglas; Chen, Xing; Choa, Fow-Sen; Kostov, Dan; Fan, Jen-Yu

doi:10.1117/12.2005351

Cited by 5 publications

(4 citation statements)

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“…Furthermore, electrical signals are found to propagate in the Venus flytrap concurrently with each optical stimulation, in the same manner observed in mechanical stimulation [44]. Also noteworthy are recent experiments involving chemical stimuli of trap closure.…”

Section: Different Ways Of Triggering the Venus Flytrapsupporting

confidence: 59%

“…The snapping mechanism can be triggered with 7.35 µm radiation from a continuous-wave laser directed at the interior of a Venus flytrap. Furthermore, electrical signals are found to propagate in the Venus flytrap concurrently with each optical stimulation, in the same manner observed in mechanical stimulation [44]. Also noteworthy are recent experiments involving chemical stimuli of trap closure.…”

Section: Different Ways Of Triggering the Venus Flytrapsupporting

confidence: 59%

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Fast nastic motion of plants and bioinspired structures

Guo

Dai

Han

et al. 2015

J. R. Soc. Interface.

102

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The capability to sense and respond to external mechanical stimuli at various timescales is essential to many physiological aspects in plants, including selfprotection, intake of nutrients and reproduction. Remarkably, some plants have evolved the ability to react to mechanical stimuli within a few seconds despite a lack of muscles and nerves. The fast movements of plants in response to mechanical stimuli have long captured the curiosity of scientists and engineers, but the mechanisms behind these rapid thigmonastic movements are still not understood completely. In this article, we provide an overview of such thigmonastic movements in several representative plants, including Dionaea, Utricularia, Aldrovanda, Drosera and Mimosa. In addition, we review a series of studies that present biomimetic structures inspired by fast-moving plants. We hope that this article will shed light on the current status of research on the fast movements of plants and bioinspired structures and also promote interdisciplinary studies on both the fundamental mechanisms of plants' fast movements and biomimetic structures for engineering applications, such as artificial muscles, multi-stable structures and bioinspired robots.

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Section: Different Ways Of Triggering the Venus Flytrapsupporting

confidence: 59%

Section: Different Ways Of Triggering the Venus Flytrapsupporting

confidence: 59%

Fast nastic motion of plants and bioinspired structures

Guo

Dai

Han

et al. 2015

J. R. Soc. Interface.

102

View full text Add to dashboard Cite

show abstract

“…are less apparent in the energy transfer from low frequency and low power EM radiation. In the current literature, the existence of the electric contribution is acknowledged [13]- [16], but the interplay between the electric and the entropic contributions is not investigated. Specifically, there is a lack of knowledge of 1) the possibility of decoupling the electric from the entropic contributions, 2) the factors that promote the electric over the entropic contribution, or vice-versa, 3) the existence of a threshold where one contribution prevails over the other, and 4) the benefits of the electric over the entropic contributions, or vice-versa.…”

Section: Introductionmentioning

confidence: 99%

Decoupling the Electrical and Entropic Contributions to Energy Transfer from Infrared Radiation to a Power Generator

Gordon¹,

Schwab²,

Lang³

et al. 2015

WJCMP

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The interaction between infrared radiation and a power generator device in time is studied as a route to harvest infrared, and possibly other electromagnetic radiations. Broadening the spectrum of the usable electromagnetic spectrum would greatly contribute to the renewable and sustainable energy sources available to humankind. In particular, low frequency and low power radiation is important for applications on ships, satellites, cars, personal backpacks, and, more generally, where non-dangerous energy is needed at all hours of the day, independent of weather conditions. In this work, we identify an electric and an entropic contribution to the energy transfer from low power infrared radiation to the power generator device, representing electrical and thermal contributions to the power generation. The electric contribution prevails, and is important because it offers multiple ways to increase the voltage produced. For example, placing black-colored gaffer tape on the illuminated face doubles the voltage produced, while the temperature difference, thus the entropic contribution, is not sensitive to the presence of the tape. We recognize the electric contribution through the fast changes it imparts to the voltage output of the power generator device, which mirror the instabilities in time of the infrared radiation. The device thus acts as sensor of the infrared radiation's behavior in time. On the other hand, we distinguish the entropic contribution through the slow changes it causes to the voltage output of the power generator device, which reflect the relative delay with which the two faces of the device respond to thermal perturbations.

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“…[1][2][3][4][5][6][7][8][9][10][11] The trap closure has been investigated by the mechanical stimulation of the trigger hairs by a cotton thread, 1,2,[12][13][14] by fingers of researchers, 15 by electrical stimulation between the lobes and midrib of the Venus flytrap, 5-9,14-16 by 7.35 μm laser with 50 μW power, 16 and by various chemicals. 1,17 Touching the trigger hairs protruding from the upper epidermal layer of the Venus flytrap's leaves ( Fig.…”

Section: Introductionmentioning

confidence: 99%