Kapillärset

Kapillärset is a term used in Swedish-language contexts to denote either a physical assembly of capillary tubes used in laboratory devices or the capillary network within a tissue or engineered construct. The common element is the involvement of capillaries at a micro-scale, facilitating controlled liquid handling or exchange processes.

In laboratory applications, a kapillärset consists of multiple capillary tubes, typically made of glass or fused silica, fixed in a carrier and connected to fluidic fittings or reservoirs. The capillaries have small inner diameters, suitable for handling microliter to nanoliter volumes, enabling precise sampling, transport, or separation of liquids. Such sets are used in capillary electrophoresis, microfluidics, gas sampling, and analytical chemistry. Design considerations include uniform inner diameter, surface chemistry compatibility, thermal management, and leak-free connections. Kapillärsetar can be sterilizable and disposable, depending on material and application.

In biology and medicine, the term can describe the capillary bed of a tissue or cultured microvascular network. Capillaries form dense, tortuous networks that enable exchange of oxygen, nutrients, and waste between blood and surrounding tissue. Key properties include capillary density, diameter, permeability, and perfusion. These networks are studied with histology, intravital microscopy, and imaging modalities that assess blood flow and exchange. Alterations in capillary networks are observed in many conditions, such as inflammation, diabetes, cancer, and wound healing.

Overall, kapillärset covers both practical laboratory assemblies for microfluidics and the biological microvascular networks essential for tissue perfusion and exchange.