南方科技大学知识苑(SUSTech KC): Bending-activated biotensegrity structure enables female <i>Megarhyssa</i> to cross the barrier of Euler's critical force

Title	*Bending-activated biotensegrity structure enables female Megarhyssa* to cross the barrier of Euler's critical force**
Author	Wen, Rongwei 1,2,3; Wang, Zheng4 ; Yi, Juan4 ; Hu, Yong 1,5
Corresponding Author	Wen, Rongwei; Hu, Yong
Publication Years	2023-10-20
DOI	10.1126/sciadv.adi8284
Source Title	SCIENCE ADVANCES Impact Factor & Quartile
ISSN	2375-2548
Volume	9 Issue:42
Abstract	The parasitic female Megarhyssa has a hair-like ovipositor capable of withstanding a penetration force 10 times greater than Euler's critical force, using a reciprocating penetration method. Understanding and replicating this penetration mechanism may notably broaden the application scenarios of artificial slender elements. Here, we show that the Megarhyssa's stretched intersegmental membrane and precurved abdomen activate the multipart ovipositor as a biotensegrity structure. The ovipositor's first and second valvulae alternately retract and protract, with each retracted valvula forming a tension network to support the other under compression, resulting in an exponentially increased critical force. We validated this mechanism in a multipart flexible microneedle that withstood a penetration force of 2.5x Euler's critical force and in a lightweight industrial robot that achieved intrinsic safety through its ideal dual-stiffness characteristic. This finding could potentially elucidate the high efficiency of insect probes and inspire more efficient and safer engineering designs.
URL	[Source Record]
Indexed By	SCI
Language	English
Important Publications	NI Journal Papers
SUSTech Authorship	Others
Funding Project	National Key Research and Development Program of China[2021YFF0501600]
WOS Research Area	Science & Technology - Other Topics
WOS Subject	Multidisciplinary Sciences
WOS Accession No	WOS:001087790200015
Publisher	AMER ASSOC ADVANCEMENT SCIENCE
Data Source	Web of Science
Citation statistics
Document Type	Journal Article
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/582757
Department	Department of Mechanical and Energy Engineering
Affiliation	1.Univ Hong Kong, Dept Orthopaed & Traumatol, Hong Kong 000000, Peoples R China 2.Univ Hong Kong, Dept Mech Engn, Hong Kong 000000, Peoples R China 3.Univ Hong Kong, Dept Comp Sci, Hong Kong 000000, Peoples R China 4.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China 5.Univ Hong Kong, Shenzhen Hosp, Orthoped Ctr, Shenzhen 518048, Peoples R China
Recommended Citation GB/T 7714	Wen, Rongwei,Wang, Zheng,Yi, Juan,et al. Bending-activated biotensegrity structure enables female Megarhyssa to cross the barrier of Euler's critical force[J]. SCIENCE ADVANCES,2023,9(42).
APA	Wen, Rongwei,Wang, Zheng,Yi, Juan,&Hu, Yong.(2023).Bending-activated biotensegrity structure enables female Megarhyssa to cross the barrier of Euler's critical force.SCIENCE ADVANCES,9(42).
MLA	Wen, Rongwei,et al."Bending-activated biotensegrity structure enables female Megarhyssa to cross the barrier of Euler's critical force".SCIENCE ADVANCES 9.42(2023).

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Bending-activated biotensegrity structure enables female Megarhyssa to cross the barrier of Euler's critical force