Retiikululum

Retiikululum is a term used in materials science and biology to describe a net-like, reticulated microstructure consisting of interconnected nodes and struts. The name derives from reticulum, the Latin for small net, and is used to convey a specific, highly connected geometry that balances porosity with mechanical integrity.

In porous materials, retiikululum characterizes lattices and foams where the network connectivity yields high surface area and open porosity. Typical features include a regular or quasi-regular arrangement of unit cells, a distribution of pore sizes, and a coordination number indicating how many struts meet at a node.

In biology, retiikululum is used descriptively to refer to net-like arrangements in tissues such as cancellous bone trabeculae, reticular connective tissue, or vascular meshes, where the architecture supports mechanical support and nutrient transport.

Characterization relies on imaging (micro-CT, SEM) and computational modeling, including finite element analysis and pore-network models, to quantify pore size distribution, tortuosity, and connectivity. Design applications include tissue scaffolds, filtration membranes, catalysts, and lightweight energy-storage frameworks.

History and usage: The term has appeared in interdisciplinary literature since the early 21st century as a descriptive alternative to reticulate, reticulum, or reticulated networks; its exact definition can vary between fields, leading to some overlap with related terms.

See also: Reticular pattern, Reticulate (biology), Lattice (mathematics), Porous material.