contact-angle-analyzer

# Contact Angle Analyzer ## Purpose The Contact Angle Analyzer skill provides comprehensive wettability analysis for nanomaterial surfaces, enabling determination of surface energy components and characterization of hydrophobic/hydrophilic properties. ## Capabilities - Static contact angle measurement - Dynamic advancing/receding angles - Surface energy calculation (Owens-Wendt, van Oss) - Wilhelmy plate analysis - Surface roughness correlation - Superhydrophobic/superhydrophilic assessment ## Usage Guidelines ### Wettability Analysis 1. **Contact Angle Measurement** - Use consistent droplet volume (2-5 uL) - Allow equilibration before measurement - Report average of multiple measurements 2. **Surface Energy Calculation** - Use multiple probe liquids - Apply Owens-Wendt for dispersive/polar - Use van Oss for acid-base analysis 3. **Surface Classification** - Hydrophilic: theta < 90 degrees - Hydrophobic: theta > 90 degrees - Superhydrophobic: theta > 150 degrees ## Process Integration - Nanomaterial Surface Functionalization Pipeline - Thin Film Deposition Process Optimization ## Input Schema ```json { "sample_id": "string", "probe_liquids": ["water", "diiodomethane", "formamide"], "measurement_type": "static|dynamic|wilhelmy", "surface_roughness": "number (nm, optional)" } ``` ## Output Schema ```json { "contact_angles": [{ "liquid": "string", "angle": "number (degrees)", "std_dev": "number" }], "surface_ene...