unit fibrils

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Related to collagen fibrils: tropocollagen, procollagen

u·nit fi·brils

the fibrils that comprise a collagen fiber, ranging from 20-200 nm and averaging about 100 nm in diameter (substantially larger in tendons), with cross-striations averaging 64 nm.
Synonym(s): collagen fibrils
References in periodicals archive ?
24) Ultrastructurally, the collagen fibrils are of the classic type with the usual periodicity, and they are found along the glomerular basement membranes rather than in the mesangium.
Based on previous literature findings that described collagen fibrils (5-7) and beta-cyclodextrins (8-14), computer-assisted three-dimensional scale models of collagen segments and anticipated examples of beta-cyctodextrin's poiymerizabie derivatives were prepared and studied.
The mechanical tension maintained in the dermis by 'pulling' cytoskeletal contractile forces and 'resisting' collagen fibrils provides fibroblasts a flattened/spread-out appearance, which is characteristic of a younger dermis.
Buehler, "Nanomechanics of Collagen Fibrils Under Varying Cross-link Densities: Atomistic and Continuum Studies", J Mech Behav Biomed Mater, 1, 59-67 (2008).
It acts as both a photo-sensitizer for the induction of cross-links between collagen fibrils, as well as shielding the underlying tissue from the effects of UVA (Figure 3).
Properties such as water absorption and hydration, and an increased density of collagen fibrils, were observed in animal studies.
The dermal equivalent develops through interactions between fibroblasts and collagen fibrils that begin to form after the cell-matrix precursor is cast.
Ng (1995) studied the ultrastructural collagen diameter in injured ACLs in goats and found that the collagen fibrils had gradually increased in size over time and there was a concomitant increase in breaking strength of the ligament.
Many fibrous long-spacing (FLS) collagen fibrils, with a periodicity of approximately 140 to 150 nm, were also recognized between tumor cells (Figure 3, A and B).
Our purpose was to compare collagen fibrils in lumican knockout and heterozygous (control) sclera.
If the collagen fibrils collapse, you don't get a good interlocking system," Antonucci says.