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Collective ordering of microscale matters in natural analogy SCIE SCOPUS

Title
Collective ordering of microscale matters in natural analogy
Authors
Ahn, SLee, SJ
Date Issued
2015-06-01
Publisher
Nature Publishing Group
Abstract
Collective interaction occurs in many natural and artificial matters in broad scales. In a biological system, collective spatial organization of live individuals in a colony is important for their viability determination. Interactive motions between a single individual and an agglomerate are critical for whole procedure of the collective behaviors, but few has been clarified for these intermediate range behaviors. Here, collective interactions of microscale matters are investigated with human cells, plant seeds and artificial microspheres in terms of commonly occurring spatial arrangements. Human cancer cells are inherently attractive to form an agglomerate by cohesive motion, while plant chia seeds are repulsive by excreting mucilage. Microsphere model is employed to investigate the dynamic assembly equilibrated by an attraction and repulsion. There is a fundamental analogy in terms of an onset of regular pattern formation even without physical contact of individuals. The collective interactions are suggested to start before the individual components become physically agglomerated. This study contributes to fundamental understanding on the microscale particulate matters and natural pattern formation which are further useful for various applications both in academic and industrial areas.
URI
https://oasis.postech.ac.kr/handle/2014.oak/36244
DOI
10.1038/SREP10790
ISSN
2045-2322
Article Type
Article
Citation
Scientific Reports, vol. 5, page. 10790, 2015-06-01
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이상준LEE, SANG JOON
Dept of Mechanical Enginrg
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