Zombie diatoms: acoustically powered diatom frustule bio-templated microswimmers

Frustules, or the silica based cell walls of diatomaceous algae Aulacoseira granulata , provide large numbers of reliably cylindrical microstructures with an inner cavity and surface chemistry suitable for constructing bubble-based, acoustically-powered micro-swimmers. In this way, microswimmers can...

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Bibliographic Details
Published in:Soft matter 2024-10, Vol.2 (4), p.812-816
Main Authors: Ozkan, Mehmed C, McNeill, Jeffrey M, Mallouk, Thomas E
Format: Article
Language:English
Subjects:
Algae
Cell walls
Colloids
Diatomaceous earth
Marine microorganisms
Silica
Surface chemistry
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Summary:Frustules, or the silica based cell walls of diatomaceous algae Aulacoseira granulata , provide large numbers of reliably cylindrical microstructures with an inner cavity and surface chemistry suitable for constructing bubble-based, acoustically-powered micro-swimmers. In this way, microswimmers can be made in a scalable, accessible and low-cost manner, enabling studies of their individual and collective behavior as active colloids. The silica-based cell walls harvested from live populations of diatomaceous algae Aulacoseira g. provide a scalable and low-cost platform for fabricating acoustically powered bubble based microswimmers.
ISSN:1744-683X
1744-6848
1744-6848
DOI:10.1039/d4sm00943f