cellulose/fatigue

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Ultralight Cellular Foam from Cellulose Nanofiber/Carbon Nanotube Self-Assemblies for Ultrabroad-Band Microwave Absorption.

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Microwave absorption materials (MAMs) with lightweight density and ultrabroad-band microwave absorption performance are urgently needed in advanced MAMs, which are still a big challenge and have been rarely achieved. Here, a new wide bandwidth absorption model was designed, which fuses the

Hybrid Nanocomposites of Cellulose/Carbon-Nanotubes/Polyurethane with Rapidly Water Sensitive Shape Memory Effect and Strain Sensing Performance.

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In this work, a fast water-responsive shape memory hybrid polymer based on thermoplastic polyurethane (TPU) was prepared by crosslinking with hydroxyethyl cotton cellulose nanofibers (CNF-C) and multi-walled carbon nanotubes (CNTs). The effect of CNTs content on the electrical conductivity of

Mechanically Viscoelastic Properties of Cellulose Nanocrystals Skeleton Reinforced Hierarchical Composite Hydrogels.

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With inspiration from the concept of natural dynamic materials, binary-component composite hydrogels with excellent mechanical properties and recovery capability were prepared from the cellulose nanocrystal (CNC) skeleton reinforced covalently cross-linked polyacrylamide (PAAm) networks. The

Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression.

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Hybrid aerogels consisting of cellulose nanofibers (CNF) and modified few-walled carbon nanotubes (FWCNT) are investigated under cyclic mechanical compression to explore "electrical fatigue". For this purpose the FWCNTs were hydrophilized, thus promoting their aqueous dispersibility to allow

Mechanical properties of cellulose in orthopaedic devices and related environments.

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The authors have undertaken a series of mechanical tests in order to assess the performance of regenerated cellulose under either static or dynamic conditions, and to evaluate its long-term behaviour under mechanical stress. In this respect, bending stiffness, resistance to compression, creep under

Rapid method for improving slide quality in the bone marrow micronucleus assay; an adapted cellulose column procedure.

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Micronuclei are routinely scored in anucleate erythrocytes in bone marrow smears stained with acridine orange. Intense fluorescence from the many nucleated cells in the preparations can interfere with micronucleus detection and cause fatigue in the reader. A method for removing nucleated cells by

Caffeine Increases Peripheral Fatigue in Low- but not in High-Performing Cyclists.

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The influence of cyclist's performance level on caffeine-induced increases in neuromuscular fatigue after a 4-km cycling TT was investigated. Nineteen cyclists performed a 4-km cycling TT one hour after ingesting caffeine (5 mg‧kg-1) or placebo (cellulose). Changes from baseline to post-exercise in

Increased antibiotic release from a bone cement containing bacterial cellulose.

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BACKGROUND Major disadvantages of antibiotic bone cements include limited drug release and reduced strength resulting from the addition of high doses of antibiotics. Bacterial cellulose, a three-dimensional hydrophilic mesh, may retain antibiotics and release them gradually. We hypothesized that the

Cellulose nanocrystals (CNC) as carriers for a spirooxazine dye and its effect on photochromic efficiency.

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Nanocrystalline cellulose (CNC) as a renewable/sustainable material, has received much attention. Herein we studied CNC as carriers for a hydrophobic spirooxazine (SO)-based dye, 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3'-[3H]naphtha[2,1-b][1,4]oxazine], which may have potential applications in

Injectable cellulose-based hydrogels as nucleus pulposus replacements: Assessment of in vitro structural stability, ex vivo herniation risk, and in vivo biocompatibility.

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Current treatments for intervertebral disc degeneration and herniation are palliative only and cannot restore disc structure and function. Nucleus pulposus (NP) replacements are a promising strategy for restoring disc biomechanics and height loss. Cellulose-based hydrogel systems offer potential for

Effects of fatigue from sleep deprivation on experimental periodontitis in rats.

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OBJECTIVE Factors such as vascularization of the periodontium, inflammatory reactions and immune response affect the oral environment and ecology, decreasing host resistance and promoting the development of symptoms and the advancement of periodontal disease. Fatigue also influences the

Acute effects of an arginine-based supplement on neuromuscular, ventilatory, and metabolic fatigue thresholds during cycle ergometry.

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The purpose of the present study was to examine the effects of an acute dose of an arginine-based supplement on the physical working capacity at the fatigue threshold (PWCFT), lactate threshold (LT), ventilatory threshold (VT), and peak oxygen uptake during incremental cycle ergometry. This study

Synthesis and characterization of cellulose/hydroxyapatite based dental restorative composites

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The aim of this study was an in-situ synthesis of hydroxyapatite (HA) on cellulose fibers to be used as a new reinforcing agent for dental restorations. The microwave irradiation method was used for synthesis and the materials were characterized with analytical techniques. The prepared dental

Spatial structure and anti-fatigue of polysaccharide from Inonotus obliquus.

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The aim of this study was to evaluate the spatial structure and potential antifatigue activity of polysaccharide fractions which was extracted from Inonotus obliquus. The first polysaccharide fractions of Inonotus obliquus (PIO-1) were obtained after hot-water extraction and purification by DEAE

Anti-fatigue activity of polysaccharides from the fruits of four Tibetan plateau indigenous medicinal plants.

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BACKGROUND The fruits of Hippophae rhamnoides L., Lycium barbarum L., Lycium ruthenicum Murr. and Nitraria tangutorum Bobr. are traditional medicinal food of Tibetans and used to alleviate fatigue caused by oxygen deficiency for thousands of years. The present study focused on exploiting natural

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