This project investigates biomimicry in surface engineering through the fabrication of antifouling coatings inspired by shark skin microstructures. Using a mold or textured surface, students prepare polydimethylsiloxane (PDMS) polymer films patterned with grooves that replicate the drag-reducing and fouling-resistant properties found in nature. These patterned coatings are bonded to substrates such as acrylic or glass and submerged in a nutrient-rich water environment to encourage biofilm and algae growth. By comparing coated and uncoated samples, learners gain skills in polymer processing, experimental design, and biomimetic materials science.
 
Analysis emphasizes the effectiveness of microstructured surfaces in reducing biological fouling and maintaining surface cleanliness. Observations of fouling coverage, drag resistance, and durability over immersion periods highlight the performance differences between natural-inspired coatings and controls. Optimization studies allow for testing groove dimensions, material variations, and hydrophobic topcoats, linking classroom-scale experimentation with real-world antifouling strategies. This project provides a practical introduction to sustainable surface technologies with applications in ship hulls, pipelines, and marine equipment.