passive transport

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transport of a substance across a cell membrane by diffusion

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The cryomethods associated with X-ray microanalysis was successfully utilized to evaluate the intraionic concentration of diffusible ions in human monocytes exposed to bioactive glass particles or cultured in a conditioned medium containing dissolved bioactive glass particles.
The Ginkgo biloba extract EGb761 rescues the PC12 neuronal cells from beta-amyloid-induced cell death by inhibiting the formation of beta-amyloid-derived diffusible neurotoxic ligands.
The initial time lag of PLA required for the hydrolysis of the polymer into diffusible oligomers before the onset of mass loss from the polymer and microbial utilization was approximately 11 days.
However, the VEGF120 mice have comparable numbers of Tbr2-positive cells indicating that the diffusible VEGF 120 isoform is sufficient to allow specification and survival of the intermediate progenitor population.
Since problems with the metals result from the diffusible, or mobile, portion of hydrogen, researchers have separated it from the rest of the hydrogen content.
Because hydrogen is very light and easily diffusible, the inner liner and the tank connector components, such as O-rings, must be carefully engineered in order to prevent leaks.
The negative electric charge is ~ 10 mV at the inside of the red cell membrane forcing diffusible anions out.
2] is a potent diffusible pro-oxidant that initiates a series of oxidative events in cells.
The network of connecting epithelial cells and the GI immune system is thought to be maintained through diffusible molecules such as cytokines, growth factors, locally derived hormones and products of arachidonic acid metabolism [27].
For MRI, the two most common methods for imaging perfusion are the dynamic susceptibility contrast approach, which detects the first passage of an intravascular contrast agent such as Gd-DTPA, and arterial spin labeling (ASL), which utilizes magnetically labeled arterial blood water as a diffusible flow tracer.
At the same time, change in pH, colour of filtrate, diffusible pigments were observed and recorded.
Insulin protects brain cells from damaging proteins called ADDLs (A[beta]-derived diffusible ligands), according to in vitro research.
Recent studies by Klein and others have suggested that short strands of the protein, known as amyloid beta-derived diffusible ligands or ADDLs, attack memory-forming brain cells, causing memory loss.