When it comes to the two basic types of cells, prokaryotes and eukaryotes, compartmentalization is everything. Prokaryotes are evolutionarily ancient cells that only have a membrane surrounding their ...

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 ...

Do clinical practice guidelines (CPGs) change clinical practice? An analysis of CPG impact on referral and treatment patterns for neoadjuvant chemotherapy in bladder cancer No significant financial ...

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, ...

Cells continuously move materials in and out through their cell walls. Facilitated transport is one way of moving those materials without expending cellular energy. In facilitated transport, materials ...

A simple passive diffusion model is used to analyze the local within-habitat dispersal of twelve species of herbivorous insects. The data comprise field mark-recapture studies in relatively ...