Naslov
Bacterial monolayers at model fluid interface

Autori
Svetličić, Vesna ; Ivošević, Nadica ; Žutić, Vera ; Long, Richard A.

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

Izvornik
IACIS: book of abstracts / Toshev, Borislav V. - Sofija : Express Print, 1997

Skup
9th International Conference on Surface and Colloid Science

Mjesto i datum
Sofija, Bugarska, 06.07.1997. - 12.07.1997

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
bacterial adhesion; initial monolayer formation; fluid interface

Sažetak
Recent studies of oil droplets and microbial cell adhesion at chemically inert and atomically smooth expanding mercury drop electrode/seawater interface seem to offer a way of looking at initial steps in biofilm formation. Fast dropping mercury electrode among other surface attributes, such as hydrophobicity and variable surface charge, mimics interfacial dynamics of natural fluid interfaces. Microinstabilities and increased transport by conventive streaming and turbulence that have been extensively studied at mercury electrodes are common phenomena to marine fluid interfaces governing processes such as convective transport, accumulation and surface coagulation of bacteria. Here we shall develop a model for biofilm formation using dextrans or marine bacteria that differ in their tendency to aggregate in seawater Although we use an artificial surface, expanding mercury sphere, the results on initial monolayer formation should be easily extended to other inert surfaces and perhaps to reactive surfaces in nature. We have identified prevailing hydrophobic over electrostatic interactions in the initial monolayer formation by adhesion of aggregated cells. Freshly exposed surfaces such as air bubbles, and air/water interface in general, as well as oil droplets are the closest analogues to our model.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA