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.
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Showing 1 to 20 of 23 for “"Biodegradable materials"”.
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Preparation of Zein-Based Biodegradable Materials and Investigation of Their Physical Properties
Plasticization was improved by dissolving zein and fatty acids in warm aqueous alcohol solutions. Resins were obtained through precipitation and kneading treatments. Inclusion of palmitic and stearic acid in the formulation resulted in harder resins that were suited for rolling into sheets; whereas …
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Evaluation of time-dependent properties of biodegradable materials for transient implantable biosensors
Current magnesium and silk materials used in transient devices limit the design possibilities. Proper material choice will give transient electronics greater functionality and a wider range of applications. Time-dependence of electrical and physical properties due to dissolution was tested for Al, …
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Towards designing de novo (1--->4)-linked polysaccharides
… variety of industrial applications ranging from biodegradable materials to pharmaceutical drug carriers. Small functional groups, such as hydroxyl, amine, N-acetylamide and methoxy are commonly employed for creating de novo saccharides with enhanced functionality. The physiochemical properties of …
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Fabrication and corrosion assessment of biodegradable metallic alloys for patient-specific bone implant applications
Biodegradable metals and alloys are materials that are intended to remain in the body long enough for healing to occur, and then degrade or dissolve after their service lifetime. Permanent implants are often much stiffer than the bone they are supporting, which can lead to loss of bone density, …
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NEO-ZOOMORPHIC ARCHITECTURE: The Decaying Whale Pavilion
… use traditional wood Joinery. Only natural biodegradable materials are used throughout while concrete or metal are avoided. As time passes, this project will gradually decay and eventually will return to nature without requiring any intervention.
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The Use of Resorabable Plates for the Fixation of Mandubular Fractures
The body of literature on biodegradable materials goes back more than 40 years. In oral and maxillofacial surgery, resorbable materials were first tested in animal studies and later used clinically in humans for fixation in traum and orthognathic surgery. A few publication reports the internal …
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A multiscale approach to controlling corrosion in Magnesium-based materials: nanoparticle alloying, hybrid coatings, and predictive modeling
Biodegradable materials have garnered significant interest over the past decades as alternatives to non-degradable implant materials used in osteosynthesis surgeries. Among these, magnesium and its alloys have emerged as promising candidates due to their favorable mechanical properties and …
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Roots adhesion processes in the Mediterranean seagrass Posidonia oceanica
… to enhance early establishment. Produced from biodegradable materials or via 3D printing, these devices enable sustainable and scalable restoration. Overall, this research advances understanding of P. oceanica seedling anchorage and provides a biologically informed framework for Mediterranean …
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Adsorption of Biomacromolecules onto Polysaccharide Surfaces
… them potential sources for sustainable and biodegradable materials. Interfacial behavior, including adsorption and enzymatic degradation, of several plant cell wall polysaccharides and their derivatives were studied with a quartz crystal microbalance with dissipation monitoring (QCM-D), …
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Combinatorial Polymer Synthesis and High-Throughput Screening Technology to Identify Optimal Approaches for Mineralized Tissue Engineering
… available a wider range of potential scaffold materials with diverse properties, as well as new methods to accelerate the process of testing soluble factors or combinations of factors. To this end, a library of poly(β-amino ester)s has been developed as the first combinatorial library of …
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Tailoring of the biomechanics of tissue-regenerative vascular scaffolds
… an ideal vascular graft. In addition, the use of biodegradable materials offers the promising prospect of leaving behind a near native vessel with no synthetic material remaining. Tissue ingrowth into grafts alters their mechanics. This, combined with a loss of mechanical integrity over time, in …
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Structural enzymology of bacterial carbon fixation and storage
… The resulting polymers can be used to make biodegradable materials with properties similar to those of thermoplastics or elastomers and are an environmentally friendly alternative to traditional petroleum-based plastics. To provide insight into the mechanism of hydroxyalkanoate …
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Ruminal Degradation of Polyhydroxyalkanoate and Poly(butylene succinate-co-adipate)
… feeders, cattle may consume plastic foreign materials incorporated into their diets and it is currently estimated that 20% of cattle contain plastic foreign materials in their rumen. These materials are indigestible and accumulate for the lifetime of the animal. As these materials accumulate, …
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Thermal spray of a drug delivery system onto femoral orthopaedic implant
Hydroxyapatite bioceramics are proven to be good materials for bone replacement and repair applications, due to their similarity in chemical composition to bone. Plasma spraying has been commonly used to apply hydroxyapatite coatings onto metallic implants for use in orthopaedic surgeries. The …
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Copying strategies to chronic floods in Kuku residential area in Lusaka district, Zambia: a hermeneutic phenomenology study.
… poor garbage disposal with emphasis on the non-biodegradable materials. Incidentally, this study entails the captured raw lived experiences of chronic flood victims of the Kuku residential area of Lusaka district from a hermeneutic phenomenology approach study. It was entirely anchored from a …
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Critical Analysis of Pyrolysis and Gasification Applied to Waste Fractions with Growing Energetic Content
… system complies with the EU principle of biodegradable materials minimization and is in agreement with the principle of adopting energy recovery after the implementation of material recycling options. In all cases studied, the analyzed integrated municipal solid waste system (IMSWS) …
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Development of bio-composite filaments for drinking straw application
… new market opportunities for the development of biodegradable materials. This study investigates creating bio-composite material from locally available flax fibre and PLA as a filament and analyzing the properties for future manufacturing of drinking straws. Specifically, this proof-of-concept …
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Fabrication of zein nanostructure
… have driven an attention towards alternative biodegradable polymers from renewable resources. Zein protein, a co-product from ethanol production from corn, is a good candidate. This research project aims to increase zein value by adopting nanotechnology for fabricating advanced zein packaging …
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Study of Hybrid Cellulose Nanocrystals in Polymeric Nanocomposites
… society's demand for biobased and sustainable materials is increasing annually. Environmental pollution related to petroleum-based plastics has motivated research into developing alternative bioplastics. These alternatives include carbohydrates such as starch, cellulose, pullulan, kefiran, and …
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THE MANY FACES OF REGENERATION: ENGINEERING MULTIFUNCTIONAL SCAFFOLDS FOR CRANIOMAXILLOFACIAL APPLICATIONS
… 3D porous structures (i.e. scaffolds), made from biodegradable materials that temporarily support cells as they grow new bone tissue. The scaffolds can be made of different materials and can be customized to fit the shape of a patient’s defect. The use of additive manufacturing technologies to …
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