A New Class of Single-Material, Non-Reciprocal Microactuators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F22%3A43924686" target="_blank" >RIV/60461373:22340/22:43924686 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388963:_____/23:00566563

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/marc.202200842" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/marc.202200842</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/marc.202200842" target="_blank" >10.1002/marc.202200842</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A New Class of Single-Material, Non-Reciprocal Microactuators

Popis výsledku v původním jazyce

A crucial component in designing soft actuating structures with controllable shape changes is programming internal, mismatching stresses. In this work, a new paradigm for achieving anisotropic dynamics between isotropic end-states—yielding a non-reciprocal shrinking/swelling response over a full actuation cycle—in a microscale actuator made of a single material, purely through microscale design is demonstrated. Anisotropic dynamics is achieved by incorporating micro-sized pores into certain segments of the structures; by arranging porous and non-porous segments (specifically, struts) into a 2D hexagonally-shaped microscopic poly(N-isopropyl acrylamide) hydrogel particle, the rate of isotropic shrinking/swelling in the structure is locally modulated, generating global anisotropic, non-reciprocal, dynamics. A simple mathematical model is introduced that reveals the physics that underlies these dynamics. This design has the potential to be used as a foundational tool for inducing non-reciprocal actuation cycles with a single material structure, and enables new possibilities in producing customized soft actuators and modular anisotropic metamaterials for a range of real-world applications, such as artificial cilia.

Název v anglickém jazyce

A New Class of Single-Material, Non-Reciprocal Microactuators

Popis výsledku anglicky

A crucial component in designing soft actuating structures with controllable shape changes is programming internal, mismatching stresses. In this work, a new paradigm for achieving anisotropic dynamics between isotropic end-states—yielding a non-reciprocal shrinking/swelling response over a full actuation cycle—in a microscale actuator made of a single material, purely through microscale design is demonstrated. Anisotropic dynamics is achieved by incorporating micro-sized pores into certain segments of the structures; by arranging porous and non-porous segments (specifically, struts) into a 2D hexagonally-shaped microscopic poly(N-isopropyl acrylamide) hydrogel particle, the rate of isotropic shrinking/swelling in the structure is locally modulated, generating global anisotropic, non-reciprocal, dynamics. A simple mathematical model is introduced that reveals the physics that underlies these dynamics. This design has the potential to be used as a foundational tool for inducing non-reciprocal actuation cycles with a single material structure, and enables new possibilities in producing customized soft actuators and modular anisotropic metamaterials for a range of real-world applications, such as artificial cilia.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MACROMOLECULAR RAPID COMMUNICATIONS

ISSN

1022-1336

e-ISSN

1521-3927

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

14.12.2022

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

nestrankovano

Kód UT WoS článku

000903705100001

EID výsledku v databázi Scopus

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