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 26 for “"Nanocellulose"”.
-
Electrospun Nanocellulose: A New Biomaterial
Science and engineering studies on biocompatible implantable materials for tissue and organ repair have recently focused on polymeric materials to serve as scaffolds for cellular integration. Cellulose in many forms has been demonstrated as potential biopolymer for tissue engineering; however, it …
-
High Shear Flow Properties of Nanocellulose
Nanocellulosics, often found in the form of cellulose nanocrystals (CNCs) and nanofibrillated cellulose (NFCs), provide promise as rheological modifiers and reinforcement fillers for composite materials. The biological origin of CNCs promises a bio-renewable resource with the potential to expedite …
-
Molecular Design and Structural Optimization of Nanocellulose-Based Functional Films
… molecular design and structural optimization of nanocellulose-based functional films. Since nanocellulose can be modulated and designed at the molecular level, tunable chemistry and functionalization of nanocellulose can offer much richer materials properties and more possibilities to construct …
-
Durability of cement and concrete matrices incorporating nanocellulose fibers (NCF)
L'introduction des nanofibres de cellulose (NFC) représente une avancée significative dans le domaine des matériaux de construction, offrant des propriétés mécaniques, une durabilité et une rentabilité supérieures par rapport aux fibres traditionnelles. Face aux inquiétudes concernant la durabilité …
-
Nanocellulose: Preparation, Characterization, Supramolecular Modeling, and its Life Cycle Assessment
Nanocellulose is a nascent and promising material with many exceptional properties and a broad spectrum of potential applications; hence, it has drawn increasing research interests in the past decade. A new type of nanocellulose -- with mono- or bi-layer cellulose molecular sheet thickness -- was …
-
Nanocellulose-based materials for sustainable soil remediation and water purification
… treatment using ecofriendly and biodegradable nanocellulose (CNC) biopolymers is addressed. This research focuses on the development of CNC-based materials, characterization of their adsorption behaviors, evaluation of CNC-mediated algal toxicity, and exploration of the application of the these …
-
Effect of surface modifications on biodegradation of nanocellulose and microbial response
… early on in product development. In particular, nanocellulose is touted as a promising green nanomaterial, as it is sourced from an effectively inexhaustible feedstock of wood-based cellulose and is assumed to be harmless to the environment since it is derived from a natural material and assumed …
-
Investigation of Thermo-conformational Atributes of Flexible Nanocellulose Films for Electronic Devices
… exposure and explore the flexibility of the nanocellulose chains, since there is no degradation effect during heat exposure at 190°C. Third, the mobility of the CNF chains during the investigation shows the changes of the glucopyranose units which were followed by a dynamical change …
-
Nanofibrillation of lignocellulosic biomass into lignin-containing nanocellulose for 3D printing and antimicrobial applications
Lignin-containing nanocellulose (LNC) has become an emerging subcategory of nanocellulose. Compared toedtraditional pure nanocellulose, LNC contains lignin and hemicellulose that are not fully removed from original lignocellulosic biomass and thus is regarded a novel nanocomposite material. With …
-
Fabrication and characterization of a magnetic bacterial nanocellulose for neurovascular reconstruction of cerebral aneurysms
… In the present work, we have used bacterial nanocellulose (BNC) as starting material for the production of a magnetic hydrogel, which we named magnetic bacterial nanocellulose (MBNC). BNC is a natural polymer produced by the bacterial strain Acetobacter xylinum, which is extruded as a …
-
Biodegradable food packaging using agricultural wastes (Banana Pseudostem)
… was to explore the possible method to isolate nanocellulose from banana pseudostem as the main polymer for bioplastic formation. Alkaline treatment, bleaching, and TEMPO-mediated oxidation coupled with mild mechanical disintegration successfully removed non-cellulosic polysaccharides and …
-
Bio-based composites that mimic the plant cell wall
… In our system, we use an already polymerized nanocellulose template and polymerize phenolic monomers on the template using a peroxidase enzyme. In the first part, we have polymerized phenol using horseradish peroxidase (HRP) in the presence of TEMPO-oxidized nanocellulose. Similar to native …
-
Electromagnetic Control of Biological Assembly
… fields while the bacteria simultaneously produce nanocellulose, resulting in networks with aligned fibers. Since the electrolysis of water due to the application of electric fields produces the oxygen in the culture media far from the liquid-air boundary, aerobic cellulose production in 3D …
-
Development of a static bioactive stent prototype and dynamic aneurysm-on-a-chip(TM) model for the treatment of aneurysms
… data was collected against PDMS, bacterial nanocellulose (BNC), and magnetic bacterial nanocellulose (MBNC). Preliminary static bioactive stents were synthesized whereby BNC was grown to cover standard nitinol stents. In an offshoot of the original research, a two-dimensional microfluidic …
-
Design, Processing, and Characterization of Nanocomposites
… sustainable material. However, unless polyamide nanocellulose composites can be produced at an industry scale, the use of traditional fillers like glass fibers will continue to be the industry standard despite their lack of being bio-based or providing comparable mechanical enhancement. …
-
Nanostructured materials for hydrophobic drug delivery
Porous silicon (Psi) and nanocellulose (NC) hydrogels are nanostructured materials with several properties that make them promising for drug delivery applications. In this work, Î2-carotene (BC) and clofazimine (CFZ) are used as model molecules to investigate the physical and chemical processes …
-
Optoperforation of Intact Plant Cells, Spectral Characterization of Alloy Disorder in InAsP Alloy Disorder in InAsP Alloys, and Bimetallic Concentric Surfaces for Metal-Enhanced Fluorescence in Upconverting Nanocrystals
… the reaction of both CFP-expressing vacuoles and nanocellulose substrates, the intensity and exposure time of the perforating laser were adjusted to values that both preserved cell vitality and permitted the laser-assisted uptake of the fluorophore. By using these calibrated laser parameters, dye …
-
Cellulose-metal organic framework nanocomposite adsorbent films for water remediation
… metal-organic framework (MOF)/crystalline nanocellulose (CNC) composites, supported on a cellulose acetate (CA) substrate. Three adsorbent films were fabricated, i.e. CA-supported MOF-5/CNC (1), CA-supported Cu-BDC/CNC (2), and CA-supported Ni-BDC/CNC (3). This composition results in …
-
Bio-inspired Cellulose Nanocomposites
… LbL assembly was carried out using oxidized nanocellulose (NC) and lignin, along with a cationic polymer poly(diallyldimethylammonium chloride) (PDDA). QCM-D was used to follow the sequential adsorption process of the three different polymers. Two viscoelastic models, namely Johannsmann and …
Page 1 of 2