Numerous artificial micro- and nanomotors, as well as various swimmers have been inspired by living organisms that are able to move in a coordinated manner. Their cooperation has also gained a lot of attention because the resulting clusters are able to adapt to changes in their environment and to perform complex tasks. However, mimicking such a collective behavior remains a challenge. In the present work, magnesium microparticles are used as chemotactic swimmers with pronounced collective features, allowing the gradual formation of macroscopic agglomerates. The formed clusters act like a single swimmer able to follow pH gradients. This dynamic behavior can be used to spot localized corrosion events in a straightforward way. The autonomous docking of the swimmers to the corrosion site leads to the formation of a local protection layer, thus increasing corrosion resistance and triggering partial self-healing.

Cooperative chemotaxis of magnesium microswimmers for corrosion spotting / I. Pavel, G. Salinas, M. Mierzwa, S. Arnaboldi, A. Kuhn. - In: CHEMPHYSCHEM. - ISSN 1439-4235. - 22:13(2021 Jul 02), pp. 1321-1325. [10.1002/cphc.202100236]

Cooperative chemotaxis of magnesium microswimmers for corrosion spotting

S. Arnaboldi;
2021

Abstract

Numerous artificial micro- and nanomotors, as well as various swimmers have been inspired by living organisms that are able to move in a coordinated manner. Their cooperation has also gained a lot of attention because the resulting clusters are able to adapt to changes in their environment and to perform complex tasks. However, mimicking such a collective behavior remains a challenge. In the present work, magnesium microparticles are used as chemotactic swimmers with pronounced collective features, allowing the gradual formation of macroscopic agglomerates. The formed clusters act like a single swimmer able to follow pH gradients. This dynamic behavior can be used to spot localized corrosion events in a straightforward way. The autonomous docking of the swimmers to the corrosion site leads to the formation of a local protection layer, thus increasing corrosion resistance and triggering partial self-healing.
Settore CHIM/01 - Chimica Analitica
Settore CHIM/02 - Chimica Fisica
2-lug-2021
3-mag-2021
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/945215
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