MICROFLUDIC DEVICE WITH ULTRAPHOBIC SURFACES

摘要

A MICROFLUIDIC DEVICE HAVING DURABLE ULTRAPHOBIC FLUID CONTACT SURFACES IN THE FLUID FLOW CHANNELS OF THE DEVICE. THE ULTRAPHOBIC SURFACE GENERALLY INCLUDES A SUBSTRATE PORTION WITH A MULTIPLICITY OF PROJECTING REGULARLY SHAPED MICROSCALE OR NANOSCALE ASPERITIES DISPOSED IN A REGULAR ARRAY SSO THAT THE SURFACE HAS A PREDETERMINED CONTACT LINE DENSITY EQUAL TO OR GREATER THAN A CRITICAL CONTACT LINE DENSITY, AND SO THAT THE RATIO OF THE CROSS-SECTIONAL DIMENSION OF THE ASPERITIES TO THE SPACING DIMENSION OF THE ASPERITIES IS LESS THAN OR EQUAL TO 0.1.(FIG 1)