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 46 for “"Gold Nanoparticles (Aunps)"”.
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Evaluation of the effects of gold nanoparticles (AuNPs) on protein folding in Escherichia coli
Gold nanoparticles have shown promising applications, more especially in the biomedical industry. This has seen major improvements in disease diagnostics, therapeutics, imaging and treatment. All this is owed to the unique physicochemical properties possessed by the AuNPs. More studies continue to …
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Raman and SERS studies of filamentous fungi
… SERS experiments, it is essential to generate gold nanoparticles (AuNPs) with proper sizes and shapes. Raman and SERS imaging of fungi via in vivo synthesis of AuNPs were used to explore cellular components of Aspergillus nidulans (A. nidulans) cell. Critical parameters including pH, …
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Evaluation of the antimicrobial properties and biocompatibility of polypropylene mesh conjugated with gold nanoparticles
… and infection rates are a concern. Conjugating gold nanoparticles (AuNPs) to PP mesh may enhance biocompatibility while reducing infection rates. In this study we investigated the size and concentration of gold nanoparticles attached to polypropylene hernia mesh to determine the effects on …
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Koloidinių tirpalų sudarytų iš polimerinių ir metalinių nanodalelių tyrimai /
Polymeric and metallic nanoparticles are extensively used in wide range of scientific areas. High interest in nanoparticles is due to new and unusual properties of materials that occur only at nanoscale. Polyaniline (PANI) is one of the most extensively studied conducting polymer. Silver …
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Green synthesis and characterization of gold nanoparticles from capparis sepiaria-tabernaemontana elegans cocktail and investigation of their biological effects in vitro.
… as delivery vehicles for therapeutic agents. gold nanoparticles (aunps) have more consideration due to their stability, oxidation resistance, electrical and optical properties. this study reports on the green synthesis and characterization of aunps synthesized using an aqueous extract of …
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Gold nanoparticle cellular uptake and its implications for cancer therapy
… a full understanding of the uptake dynamics of nanoparticles is required. As such the aim of this body of work is to conceptualise and experimentally demonstrate novel approaches to probe the uptake of gold nanoparticles (AuNPs) in cancer cells. <br/><br/>In the first study a technique is …
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Supramolecular Nanostructures as Support Materials for Gold Nanoparticle Catalysts
The high catalytic activity of gold nanoparticles (AuNPs) has led to their use in a variety of industrially-relevant reactions, such as low-temperature CO-oxidation and selective alcohol oxidation. Most current research focuses on heterogenous gold catalysis, with metal oxides being the most …
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Strechable crumpled graphene photodetector with plasmonically-enhanced photoresponsivity
… Here, we demonstrate a crumpled graphene-gold nanoparticles (AuNPs) hybrid structure photodetector with ~1200% enhanced photoresponsivity compared to conventional graphene photodetector and exceptional mechanical stretchability up to 200% tensile strain. We achieved the plasmonically …
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SURFACE PLASMON RESONANCE IMAGING BIOSENSORS FOR THE DETECTION OF PATHOGENS AND TOXINS IN FOOD
… benefited of the use of properly functionalized gold nanoparticles (AuNPs). The combination of the SPRI sensing apparatus with microfluidics devices reduces the amount of sample needed for the analysis and provides an efficient environment for the detection.
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Nitroxides in Mechanistic Studies: Ageing of Gold Nanoparticles and Nitroxide Transformation in Acids
… 2 describes the investigation of ageing of gold nanoparticles (AuNPs) and its mechanistic implications. By utilizing a customized bisnitroxide disulfide, ligand place-exchange reactions of AuNPs were studied by Electron Paramagnetic Resonance (EPR) Spectroscopy and a nitroxide spin label was …
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Development of gold nanoparticles based lateral flow assay for detection of food and water-borne pathogens
… quick, robust, and sensitive. The use of gold nanoparticles (AuNPs)-based lateral flow assay (LFA) for the detection of these pathogens is gaining traction among researchers as an alternative to conventional methods for on-site testing in places where there is no proper infrastructure, …
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Self-Assembled Nanoantenna Enhance Optical Activity and Transport in Scalable Thin Films and Interfaces
… dynamics of polymer thin films containing gold nanoparticles (AuNPs) were observed through the natural log of the dimensionless temperature driving force plotted versus time and were observed and studied across a range of variables including film thickness, laser power, nanoparticle …
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Solid and hollow gold nanoparticles as radiosensitisers in combination with x-ray radiation and targeted radiopharmaceuticals
… the radiosensitising potential of solid gold nanoparticles have reported successful radiosensitisation only in combination with low kV radiation sources, but not with high kV or MV radiation. HGNs have been employed in photothermal ablation therapy, little work has been performed to …
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Gold Nanomaterial–Biomolecule Interactions: Influence of Size, Gold Nanomaterial–Biomolecule Interactions: Influence of Size, Surface Chemistry, and Environment Surface Chemistry, and Environment
Gold nanomaterials have emerged as great candidates for biomedical applications because of their physicochemical properties and high biocompatibility. However, their performance strongly depends on their interactions with biomolecules and their stability under physiological environments. This …
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Evaluation of a gold nanoparticle platform as highly immunogenic and protective therapy against Burkholderia mallei, B. pseudomallei, and Enterohemorrhagic Escherichia coli O157:H7
… In this study, glycoconjugates coupled to gold nanoparticles (AuNPs) were tested for their protective properties in clinically relevant infection models. The flexible NP platform allow us to incorporate novel antigens identified previously by a reverse vaccinology model. In these studies, …
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Computational Modelling of Radiosensitising Properties of Nanoparticles
Metal nanoparticles (NPs) are currently under intense investigation due to their potential application in radiotherapy treatment of cancerous tumors by acting as radiosensitizing agents which may potentially lead to a reduction of side-effects caused by radiotherapy. This theses presents a …
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Nanoparticle Superlattice Processing: Monodispersed Building-Blocks & Single Crystal Films
… These building blocks are created by grafting nanoparticles with end-terminated polymers comprising supramolecular binding groups, akin to DNA base pair hydrogen bonding. This approach enables the precise organization and assembly of NCT units into macroscopic materials. By adjusting …
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Development of Au-Pt Nanoflowers as Nanoenzyme for Highly Sensitive Immunoassay: Application to the Detection of Melioidosis Biomarker
… biomarkers in clinical and research settings. Nanoparticles with enzyme-mimic properties, known as nanozymes, have garnered significant attention for their potential in revolutionizing immuno-sensing due to their tunable catalytic activity, well-developed synthesis techniques, and stability …
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Optimization of Gold Nanoparticles for Radiotherapy
… radiotherapy outcomes can be achieved by using nanoparticles, especially those with high atomic number (Z), that interact with ionising radiation to generate secondary electrons and reactive species that increase cellular damage. One of the most promising elements to use is gold, in the form of …
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Design of Cotton Fabric-Based Binary and Ternary Composite Materials Containing Nanostructured ZnO, TiO2, and Plasmonic Nanoparticles: Photocatalytic Applications
… photocatalytic coatings. Semiconductor and metal nanoparticles in heterogeneous systems have gained wide recognition in recent years because of their morphology-dependent electronic properties and their ability to integrate on various materials to improve functionality. Metal oxides, such as …
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