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That depends on your system of units: SI (mks), cgs, whatever. It doesn't actually matter as long as a consistent choice is made.
Pbech (
talk)
14:27, 16 November 2008 (UTC)reply
The symbol should be either γ (gamma) or σ (sigma) and it represents the surface tension of the interface between liquid and gas. I will update the article accordingly and will try to provide a source for this.
Pbech (
talk)
14:22, 16 November 2008 (UTC)reply
Antimicrobial nanoemulsions
The article currently has:
The same calculation can be done for small oil droplets in water, where even in the presence of surfactants and a fairly low interfacial tension \gamma = 5–10 mN/m, the pressure inside 100 nm diameter droplets can reach several atmospheres. Such nanoemulsions can be antibacterial because the large pressure inside the oil droplets can cause them to attach to bacteria, and simply merge with them, swell them, and "pop" them.[2]