Survival of virus particles in water droplets: Hydrophobic forces and landauer’s principle

Edward Bormashenko, Alexander A. Fedorets, Leonid A. Dombrovsky, Michael Nosonovsky

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

14 ציטוטים ‏(Scopus)

תקציר

Many small biological objects, such as viruses, survive in a water environment and cannot remain active in dry air without condensation of water vapor. From a physical point of view, these objects belong to the mesoscale, where small thermal fluctuations with the characteristic kinetic energy of kBT (where kB is the Boltzmann’s constant and T is the absolute temperature) play a significant role. The self-assembly of viruses, including protein folding and the formation of a protein capsid and lipid bilayer membrane, is controlled by hydrophobic forces (i.e., the repulsing forces between hydrophobic particles and regions of molecules) in a water environment. Hydrophobic forces are entropic, and they are driven by a system’s tendency to attain the maximum disordered state. On the other hand, in information systems, entropic forces are responsible for erasing information, if the energy barrier between two states of a switch is on the order of kBT, which is referred to as Landauer’s principle. We treated hydrophobic interactions responsible for the self-assembly of viruses as an information-pro-cessing mechanism. We further showed a similarity of these submicron-scale processes with the self-assembly in colloidal crystals, droplet clusters, and liquid marbles.

שפה מקוריתאנגלית
מספר המאמר181
עמודים (מ-עד)1-12
מספר עמודים12
כתב עתEntropy
כרך23
מספר גיליון2
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - פבר׳ 2021

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