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Interfacial interactions between nitrifying bacteria and mineral carriers in aq...
Teixeira, P.; Azeredo, Joana; Oliveira, Rosário; Chibowski, E.Contact angle measurements enable the determination of the surface free energy on flat and smooth solid surfaces. The thin layer wicking technique permits this determination for powdered materials. Both techniques were assayed on limestone and basalt which were the materials used as supports for bacterial adhesion. The resulting surface free energy components were compared. The free energy of interaction betwee...
Characterisation of cellulose surface free energy
Dourado, Fernando; Gama, F. M.; Chibowski, E.; Mota, M.The thin-layer wicking technique was used to determine the surface free energy components and the surface character of three celluloses (Sigmacell 101, Sigmacell 20, and Avicel 101), using an appropriate form of the Washburn equation. For this purpose, the penetration rates of probe liquids into thin porous layers of the celluloses deposited onto horizontal glass plates were measured. It was found that the wick...
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