Decanol droplets chemotactic movement triggered by salts and hydroxides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F16%3A43902167" target="_blank" >RIV/60461373:22340/16:43902167 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Decanol droplets chemotactic movement triggered by salts and hydroxides

Original language description

The movement of different objects in various external fields such as magnetic, electric or chemical has interested scientist for years. This paper describes the movement of decanol droplets in aqueous solution of sodium decanoate as a result of chemotaxis. Biological chemotaxis is a natural way for cells and organisms to perform an oriented movement in the chemical gradient. Positive chemotaxis occurs if the movement is in the direction of the growing concentration. If the movement is in the opposite direction, the chemotaxis is called negative. Artificial chemotaxis in the system decanol/decanoate/salt has similar properties, however, no cells or organism are used, only mentioned chemicals are involved. The trigger in this case is salt, namely different types of alkali salts has shown to serve as triggers for artificial chemotaxis (NaF, NaCl, NaI, KCl, KI, KBr). Further, it was proven that sodium hydroxide is able to initiate the movement as well, thus the system is pH-tactic as well. The movement mechanism is based on the Marangoni effect during which a mass is being transferred along an interface between two fluids due to surface tension gradient. Therefore, the surface tension was measured in dependence on the amount of salt in decanoate acid solution to study in influence of the surface tension on chemotaxis.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

—

Project

<a href="/en/project/GA13-09914S" target="_blank" >GA13-09914S: A controlling of diffusion processes in pores with varying permeability</a><br>

Continuities

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

Publication year

2016

Confidentiality

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

Article name in the collection

Proceedings 43rd International Conference of the Slovak Society of Chemical Engineering

ISBN

978-80-89597-35-2

ISSN

—

e-ISSN

—

Number of pages

9

Pages from-to

452-460

Publisher name

Slovak Society of Chemical Engineering

Place of publication

Bratislava

Event location

Tatranské Matliare

Event date

May 23, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—