Self-propelled aero-gan based liquid marbles exhibiting pulsed rotation on the water surface

Braniste Tudor; Ciobanu Vladimir; Schutt Fabian; Mimura Hidenori; Raevsky Simion; Adelung Rainer; Pugno Nicola Maria; Tiginyanu Ion

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2023-09-13 17:31

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[538.9+539.2+544]:620.3 (1)

Fizica materiei condensate. Fizica solidului (349)

Proprietăţile şi structura sistemelor moleculare (224)

Chimie fizică (496)

Nanotehnologie (44)

SM ISO690:2012

BRANISTE, Tudor, CIOBANU, Vladimir, SCHUTT, Fabian, MIMURA, Hidenori, RAEVSKY, Simion, ADELUNG, Rainer, PUGNO, Nicola Maria, TIGINYANU, Ion. Self-propelled aero-gan based liquid marbles exhibiting pulsed rotation on the water surface. In: Materials, 2021, vol. 14, pp. 1-7. ISSN 1996-1944. DOI: https://doi.org/10.3390/ma14175086

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Materials

Volumul 14 / 2021 / ISSN 1996-1944

Self-propelled aero-gan based liquid marbles exhibiting pulsed rotation on the water surface

DOI:https://doi.org/10.3390/ma14175086

CZU: [538.9+539.2+544]:620.3

Pag. 1-7

Braniste Tudor¹, Ciobanu Vladimir¹, Schutt Fabian², Mimura Hidenori³, Raevsky Simion⁴, Adelung Rainer², Pugno Nicola Maria⁵⁶, Tiginyanu Ion¹⁷

¹ Technical University of Moldova,
² Institute for Material Science, Christian-Albrechts-University of Kiel,
³ Research Institute of Electronics, Shizuoka University,
⁴ Moldova State University,
⁵ Universitatea din Trento,
⁶ Queen Mary University of London,
⁷ Academy of Sciences of Moldova

Proiecte:

Menționat în lucrare: 20.80009.5007.20 Nanoarhitecturi în bază de GaN și matrici tridimensionale din materiale biologice pentru aplicații în microfluidică și inginerie tisulară

Menționat în lucrare: 20.80009.5007.12 Materiale și structuri multifuncționale pentru detectarea radiațiilor electromagnetice

Menționat în lucrare: GA 810652

Promoting smart specialization at the Technical University of Moldova by developing the field of Novel Nanomaterials for BioMedical Applications through excellence in research and twinning

Disponibil în IBN: 19 septembrie 2021

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We report on self-propelled rotating liquid marbles fabricated using droplets of alcoholic solution encapsulated in hollow microtetrapods of GaN with hydrophilic free ends of their arms and hydrophobic lateral walls. Apart from stationary rotation, elongated-spheroid-like liquid marbles were found, for the first time, to exhibit pulsed rotation on water surfaces characterized by a threshold speed of rotation, which increased with the weight of the liquid marble while the frequency of pulses proved to decrease. To throw light upon the unusual behavior of the developed self-propelled liquid marbles, we propose a model which takes into account skimming of the liquid marbles over the water surface similar to that inherent to flying water lily beetle and the so-called helicopter effect, causing a liquid marble to rise above the level of the water surface when rotating.

Cuvinte-cheie
aero-GaN, Aerogalnite, Liquid marble, Pulsed rotation

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