microfibril

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microfibril

 [mi″kro-fi´bril]
an extremely small fibril.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

mi·cro·fi·bril

(mī'krō-fī'bril),
A very small fibril having an average diameter of 13 nm; it may be a bundle of still smaller elements, the microfilaments.
Farlex Partner Medical Dictionary © Farlex 2012

microfibril

An extremely thin fibril, or fibre-like strand, which is identifiable only by electron microscopy, and typically composed of glycoproteins and cellulose (for plants) or fibrillin (for animals).
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

mi·cro·fi·bril

(mī'krō-fī'bril)
A very small fibril having an average diameter of 13 nm; it may be a bundle of still smaller microfilaments.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

microfibril

a group of some two thousand cellulose chains massed together in the CELL WALL. Microfibrils are embedded in an organic matrix giving the cell wall great strength.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Sanded wood is characterized by a layer of crushed cells at the surface and subsurface, lumens clogged by fine dust, scratches, and packets of microfibrils torn out from cell walls.
At low filler content, virgin matrix exhibits a ductile deformation resulting in a continuous deformation of microfibrils into the loading direction.
Tracheid microfibril angle (MF-angle) of dominant and codominant red pine (Pinus resinosa Ait.) was studied through age 20 in a 57-year-old plantation and in a 42-year-old natural stand in eastern Maine.
The microfibrils were dipped in 5% solution of NaOH for 1 h with stirring.
Through simple calculations, they also found that in the transverse plane of the S2 secondary cell wall layer, over half of the moisture-induced swelling could be attributed to the swelling between elementary fibrils inside the microfibrils. This calculation goes against the previous assertions by researchers that most of the swelling occurs in the lignin--hemicelluloses matrix between the concentric lamellae composed of the microfibrils (Boutelje 1962, Rafsanjani et al.
Dufresne, "Cellulose whiskers versus microfibrils: influence of the nature of the nanoparticle and its surface functionalization on the thermal and mechanical properties of nanocomposites," Biomacromolecules, vol.
These analysis techniques can be applied on cross sections along or perpendicular to the fiber axis, and can be used to extract morphological repeat distances which correlate to crystallite and microfibril geometry.
Interestingly, the assembly of vimentin microfibrils in MADB fibroblasts improved with rapamycin and dimethylsulfoxide.
The FBN1gene encodes for fibrillin-1, which is a 350 kDa glycoprotein member of the fibrillin family, that are the major components of microfibrils in the extracellular matrix of elastic and non-elastic tissues.
Curling of debris due to the micromachining of the polymer surface by the Si[O.sub.2] abrasives has led to the formation of microfibrils. A micrograph of such a fibril is clearly shown in Figure 6.
This layer consists of keratin molecules arranged as microfibrils, held firmly together by inter-molecular covalent, disulphide bonds, which lie at right angles to the direction of nail plate growth, unlike hair (Forslind 1975).
Joseph, "Extraction of bamboo microfibrils and development of biocomposites based on polyhydroxybutyrate and bamboo microfibrils," Journal of Composite Materials, vol.