Transportbegränsad

Transportbegränsad is a Swedish term that translates to "transport-limited" in English. It is commonly used in the context of scientific research, particularly in fields such as biology, chemistry, and materials science. The term describes a situation where the rate of a process is determined by how quickly substances can move to or from the site where the process is occurring. This movement is often through diffusion or other transport mechanisms.

For example, in a chemical reaction occurring within a porous material, the overall reaction rate might be transport-limited if the reactants cannot diffuse into the pores quickly enough to sustain the reaction. Similarly, in biological systems, the transport of nutrients to cells or the removal of waste products can be transport-limited, affecting cellular function and overall organismal health. Understanding transport limitations is crucial for optimizing experimental conditions, interpreting results, and designing efficient systems, such as catalysts or drug delivery vehicles. It implies that simply increasing the intrinsic reactivity of a process may not lead to a faster overall rate if the transport of materials is the bottleneck.