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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 12 of 12 for “"W/O/W"”.
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Fabrication of Polymersomes using Microfluidic Devices
The fabrication of diblock copolymer vesicles, so-called polymersomes, from poly(2-vinylpyridine)-block-poly(ethylene glycol) (P2VP-b-PEG) and poly(ethylene glycol)-block-poly(lactid acid) (PEG-b-PLA) by means of microfluidics is described. The experiments were performed in microfluidic devices …
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Application of Argon Plasma Technology to Hydrophobic and Hydrophilic Microdroplet Generation in PDMS Microfluidic Devices
<p>Abstract Application of Argon Plasma Technology to Hydrophobic and Hydrophilic Microdroplet Generation in PDMS Microfluidic Devices Brennan Graham Microfluidics has gained popularity over the last decade due to the ability to replace many large, expensive laboratory processes with small handheld …
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The Stability and Drug Release Characteristics of Multiple Emulsions
Water-in-oil-in-water (W/O/W) or multiple emulsions have been studied by a number of methods. Bimodal particle size distributions were produced containing oil and multiple droplets. The proportions of these two types of droplets was important as it determined the degree to which the emulsion …
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A Comparison of Ultraviolet Light and White Light in the Detection of Adhesive During Orthodontic Debonding: An In-Vitro Study
Purpose: To assess the accuracy and efficiency of UV illumination compared to conventional white light in the detection of adhesive during orthodontic debonding.Materials and Methods: A pilot investigation was first done to evaluate different orthodontic adhesives for inclusion in the main study. …
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Encapsulation of shock-sensitive materials and their implementation into matrices
This study involved the encapsulation of a dilute sodium acetate trihydrate (SAT) aqueous solution and the dispersion of synthesized microcapsules into a matrix. Two encapsulation processes were examined: mechanically mixing and microfluidic devices to form water-in-oil-in-water (W/O/W) double …
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Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials
A capsule-based self-healing cementitious material, capable of autonomically repairing its own cracks, can extend the service life of concrete structures and decrease the costs associate with repair and maintenance actions. However, the size, shell thickness, shell material and mechanical …
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Microfluidic-generated Double Emulsions for Cell Study, Drug Delivery and Particle Therapeutics Fabrication
<p>Droplet microfluidics is a powerful platform for both fundamental and applied biomedical research. The droplets are small in size with a diameter of 1-300 um. Thus, they could function as a miniaturized environment for quantitative and qualitative analysis. Each droplet composes of water …
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Development and Characterization of Polymeric Nanoparticulate Delivery System for Hydrophillic Drug: Gemcitabine.
Gemcitabine is a nucleoside analogue, used in various carcinomas such as non small cell lung cancer, pancreatic cancer, ovarian cancer and breast cancer. The major setbacks to the conventional therapy with gemcitabine include its short half-life and highly hydrophilic nature. The objectives of this …
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Herstellung von Mikropartikeln aus einem abbaubaren Multiblockcopolymer zur Freisetzung von proteinischen Wirkstoffen
Based on the semi-crystalline and biodegradable multiblock-copolymer of poly(p-dioxanon) and poly(?-caprolacton) matrix drug delivery systems (films and particles) are developed for proteins. Protein-loaded microparticles are produced in cylindrical reactors by means of the double emulsification …
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Synthesis and evaluation of pyrazinoic acid loaded polymeric nanoparticles in the treatment of Tuberculosis
Purpose: Tuberculosis (TB) remains a deadly infectious disease worldwide despite the availability of antibiotics. TB is caused by Mycobacterium tuberculosis (M. tuberculosis), which is primarily resident in macrophages. Pyrazinamide (PZA) is a first-line antibiotic used in combination with other …
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Studien zur kontrollierten Freisetzung biologisch aktiver Substanzen aus resorbierbaren Nano- und Mikrosphären
The aim of the thesis was the preparation and characterization of resorbable drug delivery systems on the basis of nano- and microspheres, used as sustained release systems and for drug targeting. Using acetylic acid, the peptide hormone insulin and the serin protease thrombin studies were carried …
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Katalyse und in situ Spektroskopie an promotiertem und unpromotiertem WO3/ZrO2
Verfärbt sich die Probe während eines in situ Ramanexperimentes, wird die gemessene Ramanintensität stark abgeschwächt. Um einen Intensitätsvergleich zwischen den zu verschiedenen Zeitpunkten erhaltenen Ramanspektren zu ermöglichen, muß daher der Zusammenhang zwischen der Absorption der Proben und …