Sökning: "Passive diffusion"
Visar resultat 1 - 5 av 60 avhandlingar innehållade orden Passive diffusion.
1. ATP-Binding Cassette Efflux Transporters and Passive Membrane Permeability in Drug Absorption and Disposition
Sammanfattning : Transport into and across the cells of the human body is a prerequisite for the pharmacological action of drugs. Passive membrane permeability and active transport mechanisms are major determinants of the intestinal absorption of drugs, as well as of the distribution to target tissues and the subsequent metabolism and excretion from the body. LÄS MER
2. A Passive Sampling System for Monitoring Metals in the Aquatic Environment
Sammanfattning : Water monitoring is undertaken routinely as a requirement of water quality legislation. It is usual that water monitoring is undertaken through spot sampling. A passive sampling system has been developed for the aquatic environment that provides time-averaged (integrated) concentrations for metals. LÄS MER
3. Atomic Spectroscopy on Fusion Relevant Ions and Studies of Light Impurities in the JET Tokamak
Sammanfattning : The spectrum and energy levels C IV and the 3l4l' system of the Mg-like ions in the iron group elements has been investigated. This has led to several hundred identified transitions, many of them previously unknown. LÄS MER
4. Lattice Boltzmann simulations of tracer diffusion in microswimmer suspensions
Sammanfattning : Suspensions of microswimmers are a class of systems inherently out of equilibrium, due to the mechanical work continuously performed by a large number of active agents. Biological examples are plentiful, as many aquatic microorganisms have the ability to propel themselves. LÄS MER
5. ALA and m-ALA in bicontinuous lipid formulations: -Characterization and Transdermal Delivery
Sammanfattning : δ-Aminolevulinic acid (ALA) and its methyl ester (m-ALA) are both used in photodynamic therapy (PDT) of certain non melanoma skin cancers as the basal cell carcinoma (BCC). In PDT the cancer cells are destroyed by a photochemical reaction that occurs when a photosensitive molecule is irradiated with light of a certain wavelength. LÄS MER