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 10 of 10 for “"Perfluorocarbons"”.
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Trends and inferred emissions of atmospheric high molecular weight perfluorocarbons
… are presented for the five high molecular weight perfluorocarbons (PFCs): decafluorobutane (C 4 F 1 0 ), dodecafluoropentane (C5 F1 2 ), tetradecafluorohexane (C 6 F14 ), hexadecafluoroheptane (C 7F 16 ) and octadecafluorooctane (C8 F 18 ). Their atmospheric histories are based on measurements of …
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Lungenmorphologie und Apoptose nach partieller Liquidventilation im neonatalen Tiermodell
… conventionally. In a further setting two perfluorocarbons were compared: a 6-hour-period of partial liquid ventilation with FC-77 (n=6) or POB (n=5) was followed by 18 hours of conventional ventilation. After 24 hours the lungs were removed for histopathologic examination and for …
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The effects of chemical pressurization on screen electrode fuel cells
… to increase the reactant concentration. Perfluorocarbons (PFC), currently being used in biomedical applications as oxygen carriers in plasma, can be used to effectively raise the cathode oxygen concentration. This thesis will propose a model of perfluorocarbon emulsions as applied to an …
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In vitro evaluation of cytotoxicity and cellular uptake of alternating copolymers for use as drug delivery vehicles
… developed to attach ligands (for targeting), perfluorocarbons (19F MR imaging), fluorescent dyes (NIRF imaging), and radioiodine (nuclear imaging and radioimmunotherapy) to the backbone. Attachment of hydrocarbon or perfluorocarbon sidechains provides amphiphilicity to produce the multimodal …
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In vitro Microdialysis Sampling Collection of Volatile Organic Compounds (VOC's), Dodecafluoropentane (DDFP) and Isoflurane
… of the brain due to deprivation of oxygen. Perfluorocarbons have the ability to transport oxygen to tissue and in return decrease cell death. Dodecafluoropentane (DDFP) is a volatile fluorocarbon and collection in vivo can be a challenge since this compound evaporates at room temperature. …
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Creating an effective and equitable legal carbon taxing regime for South Africa
… Nitrous oxide (N2O), Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs), and Sulphur hexafluoride (SF₆). The most notable of these gasses is Carbon Dioxide (CO₂), this gas is released into the atmosphere in vast amounts and is primarily responsible for the human contribution to climate change. In …
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Ionisation studies of chlorinated and fluorinated compounds
… channels. Studies have been performed on several perfluorocarbons, CHF\(_3\), \(c\)-C\(_4\)F\(_8\) and \(c\)-C\(_5\)F\(_8\), due to their potential for use in industry. They are all excellent at etching substrates and have a lower global warming potential than the currently used gases. CHF\(_3\) …
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Ventilations-Perfusions-Verteilungsstörungen während partieller Flüssigkeitsbeatmung mit semifluorierten Alkanen (SFA) bei experimentell induziertem Lungenversagen
… studies on partial liquid ventilation (PLV) with Perfluorocarbons (PFC) in a model of the acute respiratory distress syndrome (ARDS) have shown good results concerning oxygenation and ventilation-perfusion distribution with a decrease of shunt. Unfortunately these positive results could not be …
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Long term trends of halogenated trace gases, hydrocarbons, alkyl nitrates and of the oxidative capacity of the atmosphere
… lifetimes to be correct. Emissions of the higher perfluorocarbons (PFCs) (C4F10, C5F12, C6F14 and C7F16) have decreased since peaking in the 1990s, with the exception of C7F16, emissions of which have remained stable since the 1990s. Emissions of C3F8 have also decreased since the 1990s; those of …
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Langmuir Monolayers of Minimal-linker Dimeric Surfactants
Surfactants are ubiquitous, useful compounds of immense practical significance in key industries ranging from drug-delivery to agrochemicals. The performance of these commercially valuable products depends largely on their chemical structure. The objective of the research presented in this thesis …