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Timescales water, activity

Distance and timescales involved in the water activity concept... [Pg.28]

When is equilibrium reached is an important follow-up, timescale question. The water activity measurement involves two interrelated time-scales. The first timescale is related to the nonequilibrium nature of most... [Pg.28]

Pyranine has been used to study the proton dissociation and diffusion dynamics in the aqueous layer of multilamellar phospholipid vesicles [101], There are 3-10 water layers interspacing between the phospholipid membranes of a multilamellar vesicle, and their width gets adjusted by osmotic pressure [102], Pyranine dissolved in these thin layers of DPPC and DPPC+cholesterol multilamellar vesicles were used as a probe for the study. Before the photoreleased proton escapes from the coulombic cage, the probability of a proton excited-anion recombination was found to be higher than in bulk. This was attributed to the diminished water activity in the thin layer. It was found that the effect of local forces on proton diffusion at the timescale of physiological processes is negligible. [Pg.591]

See other pages where Timescales water, activity is mentioned: [Pg.87]    [Pg.227]    [Pg.14]    [Pg.35]    [Pg.210]    [Pg.155]    [Pg.451]    [Pg.593]    [Pg.23]    [Pg.44]    [Pg.14]    [Pg.35]    [Pg.142]    [Pg.86]    [Pg.641]    [Pg.27]    [Pg.584]    [Pg.21]    [Pg.476]    [Pg.279]    [Pg.190]    [Pg.89]    [Pg.524]    [Pg.329]    [Pg.375]    [Pg.379]    [Pg.1257]    [Pg.2284]    [Pg.2449]    [Pg.2500]    [Pg.3054]    [Pg.3075]    [Pg.3520]    [Pg.3584]    [Pg.4492]    [Pg.334]    [Pg.155]    [Pg.28]    [Pg.649]    [Pg.55]    [Pg.701]    [Pg.12]    [Pg.305]    [Pg.352]    [Pg.363]    [Pg.372]    [Pg.382]    [Pg.270]   
See also in sourсe #XX -- [ Pg.28 , Pg.29 ]



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Timescale

Water activation

Water active

Water activity

Water timescale

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