Naslov
Polarography of marine bacteria: A preliminary study

Autori
Svetličić, Vesna ; Ivošević, Nadica ; Žutić, Vera ; Fuks, Dragica

Izvornik
Croatica chemica acta (0011-1643) 70 (1997), 1; 141-150

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
marine bacteria; adhesion; interfacial properties; polarography

Sažetak
We report the first investigations of marine bacteria interactions with the mercury electrode/seawater interface. The effect of marine bacteria on the oxygen electro-reduction process in seawater was studied. The presence of bacteria (N>109/mL) is manifested in high surface activity and rapid oxygen consumption. In more diluted suspensions of bacteria (N<109/mL) attachment of aggregated cells produces specific current transients that can be distinguished from the background response caused by the collective effect of adhesion of single cells and/or adsorption of their release products. The general pattern of current-time curve sequences has not been described before; it seems to simultaneously reflect a heterogeneous volume distribution of cells and their release products, as well as their interfacial properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija

POVEZANOST RADA