Gradients of molecular signaling factors play an essential role in numerous events in embryonic development, from patterning limb and organ formation to the intricate shaping of the brain and ...

All humans who have ever lived were once each an individual cell, which then divided countless times to produce a body made up of about 10 trillion cells. These cells have busy lives, executing all ...

Diffusion MRI differs from conventional MRI in that it measures the mobility of water within tissues in addition to reflecting tumor size and shape. This technology gained its first clinical ...

This is a preview. Log in through your library . Abstract [3 H]Inulin (mol wt ≈ 5,500) solutions are microinjected into the cytoplasm of mature oocytes of Rana pipiens and the subsequent movement of ...

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 ...

New work describes vital aspects of diffusion processes in tissue development, including the roles that molecular diffusion gradients have on stem cell signaling pathways along with new modeling tools ...