Investigation of the Initial Events in Biofouling.
ARVIN/CALSPAN ADVANCED TECHNOLOGY CENTER BUFFALO NY
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The overall goals of this program include 1 development and certification of methods for the in situ analysis of primary conditioning films and for the in situ speciation of the earliest attached microorganisms and 2 correlation of biofilm properties with hydrodynamic factors and original substrata properties. In the study of in situ speciation of marine bacteria, specific organisms were isolated, cultured, and identified from primary microbial fouling layers and were used to generate immunofluorescent stains. The reagents were shown to be useful for specimens retrieved from controlled laboratory fouling tests and for specimens exposed to natural flowing waters of the Atlantic Ocean. Other experiments addressed the relationship between the original material substratum surface properties and mechanicalfluidic forces necessary to realize practical field benefits from the biofouling minimum in the surface energy scale already identified. These data are being correlated with natural fouling-resistant, low-drag surfaces such as those of living porpoises and killer whales. Preliminary data suggest the prospect of developing tethered interfacial films that will provide protection from drag-enhancing surface deposits and, possibly, give true drag reduction at no logistical penalty.
- Biological Oceanography