Self-pinning protein-laden drops.
Proteins dissolved in a drop induce and enhance the pinning of the drop contact line. This effect dramatically increases the volume of drops that are vertically pinned on a flat siliconized substrate. It was found that this drop pinning behavior exhibits two regimes: for low protein content in a drop the pinning increases as the contact angle hysteresis increases, and for high protein content the pinning decreases as the surface tension of the protein solution decreases.
Berejnov
Viatcheslav V
VV
Physics Department, Cornell University, Ithaca, NY 14853-2501, USA. berejnov@uvic.ca
D005898:Glass / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D009113:Muramidase / Q000737:chemistry; D012828:Silicones / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*; D013500:Surface Tension; D013997:Time Factors; D014867:Water / Q000737:chemistry; D017155:Wettability
D012828:Silicones; D012996:Solutions; D014867:Water; D009113:Muramidase