microfibril

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microfibril

[¦mī·krō′fi·brəl]
(cell and molecular biology)
The submicroscopic unit of a microscopic cellular fiber.
References in periodicals archive ?
1 and encodes fibrillin, an important protein of the extracellular matrix, that contributes to the final structure of a microfibril (1, 2).
The newly generated acetic acid partly degrades the microfibril in the amorphous region of cellulose and even in the crystalline region, leading to a decreased degree of cellulose crystallinity.
Rabbits with experimental AS and subsequent PE exhibit a progressive titer increase of these antibodies, as well as abnormal accumulation of microfibrils in the elastic tissue, which is closely associated with excessive elasto-lysis of preformed or newly formed elastic fibers during elastic tissue remodeling.
This type of growth of this craze-like feature occurs through the disentanglement and breakdown of the numerous microfibrils (Figure 6a).
Multiple mechanical shearing actions can be used to release these microfibrils individually.
It is found in the cell wall as a network of microfibrils embedded in a non-cellulosic matrix [7].
Cellulose consists of hydrogen-bonded microfibrils, comprised of [beta]-1-4-glucose chains, and is the most abundant organic macromolecule.
It can be hypothesized that CSIs disrupt hydrogen bonding between closely packed chitin synthase units essential for the formation of crystalline microfibrils that severely disrupt the moulting, and the weak and soft cuticle triggers desiccation and death of insects (Cohen, 2001).
1993), the strength of covalent bonds in the pyranose rings and between glucose units of the cellulose polymer chain (Kalima & Jasni 2004), or the orientation of cellulose microfibrils along the axis of the fiber (Sanchis Gritsch & Murphy 2005).
On ultrastructural examination, the elastic fibres appear as granular or fibrillary aggregates of electron-dense material surrounded by an amorphous matrix with scattered microfibrils.
It has been studied that these patients do not carry a mutation in the Marfan syndrome gene FBN1 encoding fibrillin 1, but instead a defect of microfibrils which are important components of the extracellular matrix associated with fibrillin.