Cell to substratum and cell to cell interactions of microalgae

Factors affecting algae biofilm growth and lipid production: A review

“…recruitment, is highly correlated to polar surface energies of growth materials. Corresponding to the above conclusions, Ozkan and Berberoglu [22] reported differences in cell attachment between diatoms and green algae according to the hydrophobicity of the surface, and that hydrophobic cells adhered to hydrophobic surfaces more strongly than hydrophilic cells did to hydrophobic and hydrophilic surfaces. They also concluded that, above all else, acid-base interactions were the dominating mechanism for cell attachment to substrata and each other.…”

“…Some researchers have demonstrated a correlation between hydrophobic surfaces and biofilm formation and growth. Specifically, they conclude that hydrophobic surfaces are ideal for the growth of biofilms [16,22,77]. The theory behind the affects of hydrophobicity is that hydrophobic molecules, particles, and cells, prefer a hydrophobic environment, and will therefore adhere to each other to minimize their contact with water [78].…”

“…Of the algal biofilm biofuel research conducted to date, many researchers have focused on the affects of growth materials on biofilm attachment and biomass accumulation [14,[16][17][18][19][20][21][22][23], and on novel reactor designs and the biomass and lipid productivities they can produce [14,17,18,20,21,[24][25][26][27][28][29]. Additionally, there has been some work on how different growth parameters e.g.…”

Surface physicochemical properties of selected single and mixed cultures of microalgae and cyanobacteria and their relationship with sedimentation kinetics

“…LW forces, usually attractive, result from instantaneous asymmetrical distribution of electrons in molecules (the higher the value of LW component, the more apolar is the surface and, therefore, the lower would be its affinity for polar liquids) [37]. Electron donor and acceptor parameters give information about the molecules present in the studied surface: higher γ + indicates the presence of positively charged molecules and higher γ − indicates the presence of negatively charged molecules [36].…”

“…Acid-base (AB) forces result from electron transfer interactions between polar components of the involved surfaces. These interactions can be attractive (hydrophobic attraction) or repulsive (hydrophilic repulsion), depending on the free energy of hydrophobic interaction [37,38].…”