Results 41 to 50 of about 1,074,318 (296)
Redox Signaling through DNA [PDF]
Biological electron transfer reactions between metal cofactors are critical to many essential processes within the cell. Duplex DNA is, moreover, capable of mediating the transport of charge through its π-stacked nitrogenous bases.
Barton, Jacqueline K. +2 more
core +1 more source
Enhanced reaction kinetics in biological cells
The cell cytoskeleton is a striking example of "active" medium driven out-of-equilibrium by ATP hydrolysis. Such activity has been shown recently to have a spectacular impact on the mechanical and rheological properties of the cellular medium, as well as
A Ajdari +33 more
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Modelling cytoskeletal traffic: an interplay between passive diffusion and active transport [PDF]
We introduce the totally asymmetric exclusion process with Langmuir kinetics (TASEP-LK) on a network as a microscopic model for active motor protein transport on the cytoskeleton, immersed in the diffusive cytoplasm.
Kern, N., Neri, I., Parmeggiani, A.
core +3 more sources
Non-Markovian Persistent Random Walk Model for Intracellular Transport
Transport of vesicles and organelles inside cells consists of constant-speed bidirectional movement along cytoskeletal filaments interspersed by periods of idling. This transport shows many features of anomalous diffusion. In this paper, we develop a non-
Nickolay Korabel +3 more
doaj +1 more source
Bigraphical models for protein and membrane interactions [PDF]
We present a bigraphical framework suited for modeling biological systems both at protein level and at membrane level. We characterize formally bigraphs corresponding to biologically meaningful systems, and bigraphic rewriting rules representing ...
Davide Grohmann +3 more
core +5 more sources
The Process of Thermodialysis and Some of its Possible Consequences in Biology
The flow of thermal energy in liquids is associated with the development of ponderomotive forces. In non-isothermal ionic or molecular solutions a drift of the disperse phase is thus produced (thermal diffusion).
F.S. Gaeta, D.G. Mita
doaj +1 more source
Active Materials: Biological Benchmarks and Transport Limitations
Abstract Recent works in cellular and molecular biophysics suggest that activity can drive dramatic changes to the properties of living materials and their fluctuations. Experimental investigations of active materials pose some challenges.
openaire +2 more sources
A Drone-Based Bioaerosol Sampling System to Monitor Ice Nucleation Particles in the Lower Atmosphere
Terrestrial ecosystems can influence atmospheric processes by contributing a huge variety of biological aerosols (bioaerosols) to the environment. Several types of biological particles, such as pollen grains, fungal spores, and bacteria cells, trigger ...
Paul Bieber +6 more
doaj +1 more source
Diffusion of self-propelled particles in complex media
The diffusion of active microscopic organisms in complex environments plays an important role in a wide range of biological phenomena from cell colony growth to single organism transport.
Alexander-Katz, Alfredo +2 more
core +1 more source
Review: Interactions of Active Colloids with Passive Tracers
Collective phenomena existing universally in both biological systems and artificial active matter are increasingly attracting interest. The interactions can be grouped into active-active and active-passive ones, where the reports on the purely active ...
Linlin Wang, Juliane Simmchen
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