Investigation into how the concentration of sodium decanoate impacts the chemotactic behaviour of decanol droplets

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F19%3A43919880" target="_blank" >RIV/60461373:22340/19:43919880 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Investigation into how the concentration of sodium decanoate impacts the chemotactic behaviour of decanol droplets

Original language description

Chemotaxis is a biological function, defined as the autonomous movement of a cell or organism in response to the presence of a concentration gradient of a particular chemical species [1]. It is an important function in living systems as it enables cells to move towards favourable environments and away from hostile environments. In our laboratory, we study the system that involves decanol droplets moving chemotactically towards sites of salt when in solutions of sodium decanoate [2]. Various aspects of the system have been previously investigated. However, the sodium decanoate concentration has never been varied. Thus, the objective of this project was to investigate how the concentration of sodium decanoate impacts the chemotactic behaviour of decanol droplets. Chemotaxis was found to occur for experiments conducted at 5mM, 10mM and 20mM, but no chemotaxis was observed for experiments conducted at 0mM, 40mM and 80mM. Subsequently, results indicated that not only is decanoate necessary for chemotaxis, but that there is also an upper concentration value for which chemotaxis will occur. The chemotactic velocities and induction times were determined and whilst induction times showed no correlation to the concentration, the chemotactic velocity showed a clear trend of decreasing with increasing decanoate. A hypothesis was presented and supported by surface tension measurements at each concentration. Throughout experiments additional observations were made, including pattern formation and solution repelling. These observed behaviours draw on components of other elements of the system and create insights for other research areas and open questions for future work. The applications of artificial chemotaxis are endless, having a system that could respond chemotactically to different chemical species would create vast opportunities for targeted drug delivery, environmental remediation and even smart cleaning systems for machines [3]. However, it is apparent that a greater understanding into why the system behaves the way it does is required first. This research contributes to helping to understand artificial chemotactic behaviour and in particular, how systems might depend on the concentration of its surrounding solution.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

<a href="/en/project/GJ17-21696Y" target="_blank" >GJ17-21696Y: Towards the understanding of evaporation induced pattern formation of decanol droplets</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

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

Article name in the collection

Proceedings 46th International Conference of the Slovak Society of Chemical Engineering

ISBN

978-80-8208-011-0

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

1-9

Publisher name

Slovak Society of Chemical Engineering

Place of publication

Bratislava

Event location

Tatranské Matliare

Event date

May 20, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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