Naslov
Interaction of living cells with electrode/aqueous electrolyte interface
(Interakcija živih stanica s međupovršinom elektroda/vodena otopina elektrolita)

Autori
Tomaic, Jadranka ; Ivosevic, Nadica ; Zutic, Vera

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts / - : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo, 1995, 204-204

Skup
XIV. SKUP HRVATSKIH KEMICARA i IV. HRVATSKI SIMPOZIJ O KEMIJI I TEHNOLOGIJI MAKROMOLEKULA

Mjesto i datum
Zagreb, Hrvatska, 06.02.1995. - 08.02.1995

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
adhezija, stanice alga, međupovršinska napetost, živina elektroda
(adhesion, algal cells, interfacial tensions, mercury electrode)

Sažetak
The complex interfacial processes responsible for aggregation of biological particles can be decoupled using a model hydrophobic interface, mercury electrode/seawater, where interfacial tension and charge can be varied at will. We have investigated the mechanism of initial attachment of individual cells of marine macroflagellates Dunaliella tertiolecta and Isochrysis galbana. The attachment of each cell is recorded as a well defined electrical signal (current-time transient) in a charasteristic range of potentials. Each electrical signal is caused by displacement of counter ions and water molecules from the inner double layer of the electrode by the cell. The critical potential of appearance of signals serves to estimate critical interfacial tension of attachment. The attachment efficiency of living cells depends critically 0n the interfacial tension of cells and electrode. Interfacial tension of cells in exponential phase of growth is higher then in stationary phase.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti

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