Bacteria and yeast need to prevent leakage of numerous small molecules through their cell membrane. Biochemists have studied how the composition of the membrane affects passive diffusion and the ...

The permeability of biological membranes is a key determinant of drug pharmacokinetics. Historically, passive diffusion through the lipid bilayer portion of a biological membrane was suggested as the ...

Impact of dose density of adjuvant chemotherapy for locally advanced urothelial cancer. Background: Device-assisted intravesical mitomycin-C (MMC), including electromotive administration (EMDA) and ...

Passive diffusion plays an essential role in oral absorption of drugs through the gastrointestinal tract, penetration across the blood-brain barrier to reach Central Nervous System disease targets, ...

In human pregnancy, the transport of antibodies to the fetus is limited to IgG. IgG is actively transported across the placenta to the fetus to provide immunological protection to the newborn via ...