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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 33 for “"Nanoemulsions"”.
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Formation of nanoemulsions and entrapped microdroplets
… are two broad categories of method to prepare nanoemulsions: high energy and low energy methods. The literature lacks a mechanistic understanding of nanoemulsion formation leading to a trial and error approach. In this thesis, we address this issue by providing a rationale to synthesize …
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Stabilisation of dehydrated nanoemulsions using sugar - protein matrices
… are numerous review papers discussing liquid nanoemulsions and how they compare to other emulsion systems. Little research is available on dried nanoemulsions. The objectives of this research were to (i) study the effect of varying the continuous phase of nanoemulsions with different …
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Structure, rheology and applications of thermally-gelling nanoemulsions
… effective tool to engineer material properties. Nanoemulsions, liquid-liquid dispersions where the droplet size is on the order of 100 nm, have become an emerging model system for studying aspects of colloidal gel materials. In conventional approaches, the gelation of nanoemulsions relies on the …
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The absorption of vitamin D3 from soy protein nanoemulsions
… sonication treatment to create soy protein-based nanoemulsions (SPNEs). The SPNEs were loaded with VitD3 and evaluated in terms of stability, bioaccessibility, bioavailability, bioefficacy, sensory, and physicochemical effects. VitD3 stability was evaluated after UV-B light exposure for 0, 30, 60 …
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Development of nanogels from nanoemulsions and investigation of their rheology and stability
Nanoemulsions with extremely small droplet sizes (<100 nm) have shown several advantages over conventional emulsions. However, almost all nanoemulsions in usage are liquids that restrict their use in many soft materials. The aim of this thesis is to understand the formation and long-term stability …
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Preparation of polysaccharide-based nanoemulsions to reduce melanoma drug resistance and inflammation markers
Melanoma is the most aggressive type of skin cancer and various treatments have been investigated to treat this disease. However, an intrinsic issue in the clinical setting is the development of multidrug resistance. So far no single approach has emerged that may overcome such drug resistance by …
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Functional characterization of pH and ultrasound treated soy protein based nanoemulsions with lutein
… protein isolate was used as emulsifier to create nanoemulsions with lutein. Two types of nanoemulsions were successfully created with 10 mg/ml soy protein and 0.054 mg/ml lutein. One contained 0.25% oil and was homogenized with ultrasound (SEO); and the other contained 0.027% oil and the lutein …
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Macrophage COX-2 As a Target For Imaging And Therapy of Inflammatory Diseases Using Theranostic Nanoemulsions
… of COX-2 in macrophages using theranostic nanoemulsions proves to be an effective and generalized strategy facilitating simultaneous therapy and diagnosis, which can be applied to many chronic diseases. The diagnostic information during therapy can be used to tailor the treatment and reduce …
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Macrophage COX-2 As a Target For Imaging And Therapy of Inflammatory Diseases Using Theranostic Nanoemulsions
… of COX-2 in macrophages using theranostic nanoemulsions proves to be an effective and generalized strategy facilitating simultaneous therapy and diagnosis, which can be applied to many chronic diseases. The diagnostic information during therapy can be used to tailor the treatment and reduce …
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Determining the effect of lipid nanoemulsions on insulin signaling and the inflammatory pathways at the Blood-Brain Barrier
Several studies have shown that metabolic disorders such as type-2 diabetes (T2DM) play a role in propagating neurodegenerative disorders like Alzheimer’s Disease (AD)(1). As the brain is an insulin-sensitive organ and requires insulin for promoting neuronal integrity and function, impairment of …
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The effect of interfacial compositions on the dispersed phase-induced gelation and controlled digestion of mono and bilayer nanoemulsions
… the gelation in 40 wt% canola oil-in-water nanoemulsions was investigated as a function of excess emulsifier Citrem (citric acid esters of mono and di-glycerides) removal from the aqueous phase. The removal of excess Citrem increased the viscosity, yield stress and storage moduli of …
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Preparation and Evaluation of Oil-in-Water Self-Nanoemulsifying Systems with Potential for Pulmonary Delivery
… development and screening of oil-in-water nanoemulsions was done based on results obtained from an evaluation of self-emulsification time, phase diagram domains, and characteristics of resultant nanoemulsions. The optimized formulation was found to contain Cremophor RH 40 as the surfactant, …
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Nanoemulsion-Loaded Hydrogels For Advanced Pharmaceutical Formulations
… we utilize two promising building blocks, nanoemulsions and hydrogels, to design new materials that enable more efficient and effective formulations of oral drug products with high quality and versatile release. First, we present a method to encapsulate functional nanoemulsions in alginate …
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Natural antimicrobial nanomaterials for food packaging applications
… on the physical properties of the nanoemulsions was evaluated. The antimicrobial activity of the monodisperse nanoemulsions was assessed and OEO nanoemulsions made from Tween® 20 in a surfactant to oil ratio of 1:1, an average droplet diameter of 131 nm and a zeta potential of 39.2 …
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Investigation of the NOx and PM emissions from a diesel engine operating on nanoemulsified fuels
… benefits by running different base diesels and nanoemulsions with varying water content in a single cylinder direct injection Ricardo Hydra engine. The effect of water addition on the base diesel is modeled using a previously verified model of the test engine. The experimental and modeling …
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Surface Modified Solid Lipid Curcumin Nanoparticles For Oral Delivery
… two different stabilizers. |The oil/water nanoemulsions were prepared by sonication and high pressure homogenization (HPH) using GMO/chitosan system. Two different stabilizers namely, PVA and poloxamer 407 were used for this purpose. The particles size (PS) and zeta potential (ZP) of …
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Application of fish gelatin in novel emulsion-based delivery systems
… under temperature changes and external forces. Nanoemulsions are a critical form of emulsion systems, known for their superior creaming stability and enhanced efficacy in delivering bioactive ingredients. In this study, cold water fish gelatin (CFG) was combined with WPI or WPF under various pH …
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Microfluidic synthesis and properties of bio-inspired colloids
… from crosslinkable silicone oil-in-water nanoemulsions. The nanoemulsion loadings achieved in our composite microgels have, to our knowledge, among the highest ever demonstrated in a hydrogel material. In addition, we perform proof-of-concept assays to show several orthogonal motifs, such …
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Preparação de nanopartículas de poli (metacrilato de metila) carregadas com filtros solares por processo mediado por membrana de vidro (SPG)
… work used glass membrane (SPG) for prepration of nanoemulsions of methyl methacrylate, avobenzone and octocrylene, which were polymerized throught radical miniemulsion polymerizations. The obtained nanoparticles presented narrower size distributions, when compared to those obtained through …
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