microfibril


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Related to microfibril: microfibrillar

microfibril

[¦mī·krō′fi·brəl]
(cell and molecular biology)
The submicroscopic unit of a microscopic cellular fiber.
References in periodicals archive ?
G1013R is expected to produce both structural and electrostatic perturbations, which are expected to impair the calcium-depending structure of an EGF-like domain of fibrillin-1 and likely to interfere with the process of microfibril formation.
Figure 3(B-1) shows a region of the microfibril surface smaller than that in Figure 2 (A-1), which allows identifying where the cement paste was deposited.
Resolution provided by the SEM shows that concentric microfibrils compose the pit border (Figure 11).
Cellulose microfibrils, composed of multiple linear chains of glucose; matrix polysaccharide, composed of branched sugar chains made of diverse sugar types, especially xylose; the plasma membrane, which composes the boundary of living cells; and a complex of proteins that synthesize cellulose, represented by the ring of spheres embedded in plant cell walls.
Cellulose molecules may be as many as 2000 glucose molecules in length, and these long molecules are bundled together in packages to form a microfibril.
One possible answer came from Lynn Sakai and coworkers in 1986, when they discovered the major protein of the microfibril.
It occurs frequently in polyurethanes, since the urethane groups have the interactivity and the spatial configuration to generate the aggregation of functional groups to form a kind of microfibril whose modulus of elasticity is considerably greater than the most flexible part of the molecule (e.
A hypothesis is presented where the combination of a thin cell wall and large microfibril angle are responsible for the superior properties exhibited by the DN 30 pulp.
It is characterized by shorter cells, larger microfibril angles, more compression wood, different specific gravity and higher lignin content (Zobel and van Buijtenen, 1989).
Eleven protofibrils form a microfibril which bundle together into macrofibrils and fill each hair cell.
There seems to be a correlation between the presence of trichoblasts and the subsequent development of a helicoidal cellulose microfibril pattern in hairs derived from these specialized cells (Emons, 1987).
Chanzy at CERMAV, Grenoble; he reported elegant electron difrraction experiments that showed stretches of triclinic I[alpha and monoclinic I[beta] crystalline regions along a single cellulose microfibril.