Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 31 for “"microfibrils"”.
-
Origin and development of floral buds in tobacco explants: organization of microtubules and microfibrils in differentiating cells
Contains fulltext : mmubn000001_078176832.pdf (Publisher’s version ) (Open Access)
-
Cell-walls of growing plant cells
… interwoven network of cellulose microfibrils, cross-linked by xyloglucan and dispersed in a pectin matrix. It has been suggested that in the wall of growing plant cells, xyloglucan is bound to the rigid cellulose microfibrils by hydrogen bonds and holds the microfibrils together …
-
Isolation of Cellulose Nanofibres: Elucidation of a Novel Approach Utilizing Fungal Pretreatment
… into perfect stereoregular configuration called microfibrils through a regular network of inter and intramolecular hydrogen bonds. The cellulose microfibril along with hemicellulose chains that tether to the cellulose microfibrils and other polysaccharides through hydrogen bonding forms the cell …
-
Identification of novel components that connect cellulose synthases to the cytoskeleton
… structure in plant cell walls. Cellulose microfibrils are laid down in a tight parallel array, surrounding plant cells like a corset. Orientation of microfibrils determines the direction of growth by directing turgor pressure to points of expansion (Somerville et al., 2004). Hence, …
-
Viscoelastic Models for Ligaments and Tendons
… by accounting for their main components: microfibrils, cross-links and proteoglycan-rich matrix. The model illustrates tensile behavior and stress relaxation of a single collagen fiber by assuming that the microfibrils and the cross-links are elastic and the surrounding proteoglycan-rich …
-
Structure and defects in high-performance aramid fibers
… when deformed, with finer and more ordered microfibrils compared to those found in the fracture sections of KM2 fibers. Furthermore, the fiber failure sections from tensile tests revealed several distinguishing features. Both types of fibers had distinct skin but with different thickness and …
-
Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions.
… coloration consists of assembling cellulose microfibrils into helicoidal structures. Examples of these architectures can be found in phylogenetically distant species and in different tissues of plants, such as in the endocarp of the fruit of $\textit{Margaritaria nobilis}$, an eudicot, and in …
-
The effect of age on the structure and compostition of the cell walls of Choanephora cucurbitarum
… amorphous material and randomly distributed microfibrils. The deposition of an inner secondary layer composed of parallel oriented microfibrils in the older hypha was correlated with an increase in the chitin content in the cell wall. The significance of these results with respect to the …
-
Computation of moving interface flows in biophysical applications
… application, we investigated the dynamics of microfibrils in the primary cell walls of plants that contain mainly pectin, a gel-like fluid, and a small amount of water. The interaction between microfibrils, pectin and water constitute a problem of coupled fluid-structure interaction and …
-
Investigations on the host-parasite interface of a mycoparasite system /
… regions: microfibrillar and amorphous. The microfibrils which were composed of mainly chitin, were organized into two distinct layers: an outer, thicker layer of randomly orientated microfibrils and an inner, thin layer of parallel microfibrils.Electronmicrographs of the host-parasite …
-
Characterisation of novel matrix-binding interactions for latent transforming growth factor-β-binding protein-2 (LTBP-2), with emphasis on heparin and heparan sulphate proteoglycans.
… being composed of an elastin core and fibrillin-microfibrils around the periphery. Elastic fibre formation is a complex developmentally regulated process whereby fibrillin-microfibrils act as templates for the deposition of elastin. Additional matrix macromolecules, including fibulin-4, fibulin-5 …
-
Structure and dynamics of plant cell walls and membrane peptides from solid-state NMR
… suggest a single network model, where cellulose microfibrils make physical contacts with both pectin and hemicellulose. We also investigated how this network was unlocked by expansin, a wall-loosening protein. Using differential isotopic labeling and dynamic nuclear polarization, we determined …
-
ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΜΟΡΦΟΓΕΝΕΣΗΣ ΤΩΝ ΚΑΤΑΦΡΑΚΤΙΚΩΝ ΚΥΤΤΑΡΩΝ ΤΟΥ ΦΥΤΟΥ ZEA MAYS
… OF PERIPHERAL MICROTUBULES AND CELLULOSE MICROFIBRILS, 3) THE FORMATION OF THE STOMATAL PORE IS A RESULT OF GUARD CELLS PASS THROUGH AN INTERMEDIATE STAGE IN WHICH THEY ASSUME A KIDNEY LIKE SHAPE. IT SEEMS LIKELY THAT THE RADIAL MICROFIBRIL ARRANGEMENT IN THE PERIPHERAL WALLS IN THE …
-
Cytology and ultrastructure of eustigmatophyceae
… The Vegetative cells are shown to have microfibrils (probably cellulose)' in the cell wall (Vischeria stellata), lamellate vesicles in the cytoplasm of all the species observed and a clear connection between the cfiloroplast endoplasmic reticulum and the nuclear envelope only in …
-
Development of an electronic paper prototype on bacterial cellulose using electrochromic systems
… sheet by deposition of conductors around the microfibrils to provide conducting pathways and then immobilizing electrochromic dyes into the microstructure. The whole system was then cased between transparent electrodes in three different device structures. Upon application of switching …
-
Multi-Functional nano-structures in Nature: from optics to mechanics
… nanomechanics of helicoidally arranged cellulose microfibrils in the cell walls of Pollia condensata fruits shed light on the origin of the chirality assembling in the plant cell walls. By studying the structural colours developed in the close affinity of Pachyrhynchus sarcitis weevils and their …
-
Bio-based composites that mimic the plant cell wall
… cell wall is a composite of oriented cellulose microfibrils reinforcing a lignin/hemicellulose matrix. In principle, the plant cell wall composite is designed much like a synthetic fiber-reinforced polymer composite. Unlike synthetic composites, the plant cell wall has an excellent combination …
-
Suspension, yielding, microstructure and applications of bacterial cellulose dispersion
… Medical nasal sprays incorporating cellulose microfibrils are shown to be greatly enhanced in their ability to coat and adhere to surfaces, as the gel yield stress provides a more consistent flow resistance than traditional viscosity modification. Finally, a novel form of microcapsule is …
-
Nanocellulose: Preparation, Characterization, Supramolecular Modeling, and its Life Cycle Assessment
… about the supramolecular structure of cellulose microfibrils, and evaluated the environmental aspects of the fabrication process of nanocellulose.
Page 1 of 2