| The diatoms,which are the important components of aquatorium system as plant,are not only the participators in the circulation of energy and substances in the marine ecosystem act as producers,but aslo palyed a significant role regarding the environment.The self-assembled monolayers (SAMs) with different terminal chemical functional groups were employed as substrates for the culture of diatoms cells, accordingly, taking advantage of these materials with specific physical and chemical properties of the surface to explore the influence on adhesion behavior of diatoms.The functional groups including vinyl (-C=C-), methyl (-CH3), and mixture of methyl and amino (-NH2) were prepared by surface grafting of different organosilanes and vinyl terminated on hydrophilic glass slides followed by in situ oxidation into carboxyl groups.The SAMs modified with different wetting angle were applied to explore the influence on adhesion.The samples used counting statistics were characterized the qualitative and quantitative results with optical microscope.The surfaces with the cations were investigated to the impaction on adhesion as well as the wettability combined with the results of experiments.The equipments imitated the current were tested the adhesion strength.In this study, it is showed that:different chemical functional groups attached to the impact of Navicula were different.Adhesion of Navicula can be promoted on Strong hydrophilic surfaces. Surfaces charged positively have a negligible effect on adhesion of Navicula, regardless of the length of time for the interaction between Navicula and the surfaces, which are conducive to the adhesion.The process adhesion of diatoms is dynamic, which is regulated by the contact angle, surface energy and electronegativity and other factors. During the different periods, one or more factors were dominanted to play an important role in the adhesion of diatoms. There is no direct relationship between the amount of adhesion and adhesion strength of diatoms. |
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