These compartments -- artificial cells, each a mere millionth of a meter in depth -- are connected via thin capillary tubes, creating a network that allows the diffusion of biological substances ...

The film discusses the fundamental processes of cell ... living things, emphasizing the importance of cell structure and the role of molecules in life processes. Key concepts include diffusion ...

into or out of the cell. Products of digestion, dissolved in water, can pass across the wall of the small intestine by diffusion. Their concentration is higher in the small intestine than their ...

including the roles that molecular diffusion gradients have on stem cell signaling pathways along with new modeling tools that describe gradients of nutrients and signaling factors in three ...

Quantum dots diffuse within living cells in a nearly two-dimensional fashion. This result, which was obtained using a new 3D microscopy technique that can track single particles, sheds fresh light on ...

Actin-based vesicular trafficking of Cdc42, leading to a polarized concentration of the GTPase, has been implicated in cell polarization, but it was recently debated whether this mechanism allows ...

These compartments – artificial cells, each a mere millionth of a meter in depth – are connected via thin capillary tubes, creating a network that allows the diffusion of biological substances ...