Ämneskategori: Nanovetenskap och nanoteknik

Hittade 260 dokument - visar 20 per sida

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1. Fabrication of biosensors enabling glucose and glutamate detection. Characterisation and study of enzymatic electrochemical biosensors
   Johansson, Sanna; Johansson, Ylva
   Examensarbete på grundnivå, 2017 (Kemiteknik, högskoleingenjör (180 hp))
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2. Integration of plasmonic nanostructures on waveguides
   Sjöberg, Mattias
   Examensarbete på avancerad nivå, 2017 (MSc - Nanotechnology)
   Due to the limited sensitivity of many currently used single particle analyzationmethods for the investigation of biological nanoparticles, such as exosomes andvirions, many suffer from a bias towards the larger size ranges while sub 90 nmparticles are potentially disregarded or less accurately analyzed. The division ofBiological Physics at Chalmers has for...
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3. Development of a Nanoplasmonic Ruler
   O´Reilly, Padraic
   Examensarbete på avancerad nivå, 2017 (MSc - Nanotechnology)
   The ability to simultaneously and independently measure the refractive index and thickness ofa thin film is of tremendous interest in the fields of material science and biology. For example,via these measurements it can be possible to thoroughly investigate the effects of temperatureon a material or the conformational changes of a cell membrane upon the bind...
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4. Synthesis of Catalyst-free InAs Nanowires on Silicon
   Badawy, Ghada
   Examensarbete på avancerad nivå, 2016 (Masterarbete)
   Semiconductor nanowires are nanometre-sized structures offering a wealth of unique and novel properties affiliated with their nanoscopic dimensions and are thus being extensively studied and appraised for their potential to reshape future electronic, photonic and sensing device applications. Of great significance, are nanowire (NW) synthesis techniques provi...
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5. Spectroscopic investigations of rotating gold nanorods in an optical trap
   Andrén, Daniel
   Examensarbete på avancerad nivå, 2016 (Masterarbete)
   Due to their extraordinary plasmonic properties, gold nanorods are prime candidates fora variety of sensory, biomedical, spectroscopic, and data storage applications. Recentstudies have demonstrated that gold nanorods trapped by optical tweezers can functionas nanoscopic rotary motors driven by scattering induced optical torques. The systemholds promise for...
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6. Effects of gold nanoparticles dispersed in anodes for dye sensitized solar cells
   anvell, erik
   Examensarbete på avancerad nivå, 2016 (Masterarbete)
   Future solar cells need to be cheaper, more efficient and produced in an environmentalfriendly way to be a competitive and sustainable alternative for solar energy conversion.The emerging dye sensitized solar cells (DSSCs) might be able to meet future demandsregarding price, structural flexibility and environmental issues, but for the time being,their potent...
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7. Thermodynamics and Optical Response of Palladium-Gold Nanoparticles
   Rahm, Magnus
   Examensarbete på avancerad nivå, 2016 (Masterarbete)
   Alloyed nanoparticles of palladium (Pd) and gold (Au) are promising candidatesfor hydrogen sensing in e.g., cars powered by fuel cells. Specifically, the plasmonicresponse of Pd-Au nanoparticles changes upon absorption of hydrogen, enablingquantitative measurement of the hydrogen partial pressure. The optical propertiesof alloyed nanoparticles are not only d...
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8. Alloy Nanoparticles for Hydrogen Sensing
   levin, sune
   Examensarbete på avancerad nivå, 2016 (Masterarbete)
   Detecting hydrogen with nanoplasmonic sensing is a fairly new concept with thepromising prospect of producing compact and precise hydrogen sensors with a lowcost, due to the small amount of materials needed. In order to explore this possibility,material properties of various nanoparticle compositions should be examinedto get a good understanding for these sy...
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9. Development and Characterization of a Human Liver Spheroid Culture for Drug Metabolism and Disposition Studies
   lindberg, amanda
   Examensarbete på avancerad nivå, 2016 (Masterarbete)
   The liver is the main organ of the human body involved in metabolism of xenobiotics. When developing drugs, it is important to have a model that predicts the metabolism and disposition of substances in the liver to be able to ensure the efficacy and safety of the drugs.In this thesis, a hepatic spheroid model is further developed and evaluated regarding the...
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10. Transport through Magnetic Molecules with Spin-Vibron Interaction
    Kenawy, Ahmed
    Examensarbete på avancerad nivå, 2016 (Masterarbete)
    Electronic transport through single-molecule devices is a powerful spectroscopic tool to probe various degrees of freedom at the nanoscopic level. Among these degrees of freedom, molecular vibrations are of particular relevance since they can result in drastic effects such as transportblockade. While the effect of the interaction between the molecular charge...
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11. Time-dependent particle and energy currents through interacting quantum dots
    Vanherck, Joren
    Examensarbete på avancerad nivå, 2016 (Masterarbete)
    Recently, there has been a lot of interest in particle and energy currents through nanoscale devices. Most of these studies focus on the stationary behaviour of these devices, which can for example describe autonomous heat engines. However, for the dynamical operation of such nanosystems, e.g. for cyclic gate driving or irradiation of frequency-dependent ele...
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12. Water Quality Verification Through Optical Detection of Bacteria
    Belletati, Patrícia Fernandes
    Examensarbete på avancerad nivå, 2016 (MSc - Nanotechnology)
    Contamination in water supplies can occur and it results in the distribution of inappropriate water, affecting greatly the community well-being. Monitoring waterutilities is key to avoiding possible health problems from this scenario. A conventional parameter to evaluate the quality of water is the concentration of Escherichiacoli, a bacteria commonly presen...
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13. Preparation and characterization of giant niosomes
    Homaei, Maryam
    Examensarbete på avancerad nivå, 2016 (MSc - Nanotechnology)
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14. Characterisation and optimisation of superconducting microwave resonators
    Boehme, Thijs
    Examensarbete på avancerad nivå, 2016 (MSc - Nanotechnology)
    In this master's thesis, I present the design, fabrication, and characterisation of superconducting microwave resonators. These resonators are quarter-wavelength coplanar waveguide resonators, operating at resonance frequencies between 4 GHz and 8 GHz. This kind of resonator is a key component in several applications, ranging from quantum computation devices...
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15. Exploring Colloidal Silica Nanoparticles for Carbon dioxide Capture and Storage
    Nilsson, Sara
    Examensarbete på avancerad nivå, 2016 (MSc - Applied physics)
    Reducing the emissions of carbon dioxide is critical to prevent climate change. Carbon dioxide Capture and Storage (CCS) provides one step in that direction. Mesoporous materials, such as silica, are studied as sorption materials for CCS to decrease the energy demand of regeneration compared to the more frequently used liquid amines. In the search for the op...
16. Exploring Colloidal Silica Nanoparticles for Carbon Dioxide Capture and Storage
    Nilsson, Sara
    Examensarbete på avancerad nivå, 2016 (MSc - Applied physics)
    Reducing the emissions of carbon dioxide is critical to prevent climate change. Carbondioxide Capture and Storage (CCS) provides one step in that direction. Mesoporousmaterials, such as silica, are studied as sorption materials for CCS to decreasethe energy demand of regeneration compared to the more frequently usedliquid amines. In the search for the optima...
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17. Optimization and design of enzyme based biosensors for high temporal recording of molecules important in brain chemistry
    Lindmark, Hampus
    Examensarbete på grundnivå, 2016 (Kemiingenjör (180 hp))
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18. Electron transfer processes in a dye-TiO2/SnO2-acceptor assembly:Towards long lived charge separated states for solar fuels
    Björklund, Jimmy
    Examensarbete på avancerad nivå, 2016 (MSc - Materials Chemistry and Nanotechnology)
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19. Studies on electron transfer and recombination across dye-TiO2-SnO2-acceptor assemblies
    Sundin, Elin
    Examensarbete på avancerad nivå, 2016 (MSc - Materials Chemistry and Nanotechnology)
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20. Ytplasmoniska egenskaper hos nanopartikelsystem
    PERSSON, ANTON; Olsén, Erik; Trinh, Viet; Dovner, Gudrun
    Examensarbete för kandidatexamen, 2016 (Kandidatarbete)
    I detta arbete har dessa egenskaper undersökts för system bestående av en eller flera nanodiskarav guld. Syftet med arbetet har varit att undersöka hur olika parametrar för diskarna och derasomgivning påverkar de plasmoniska egenskaperna samt ge en övergripande fysikalisk förklaringav de erhållna resultaten. Genom simuleringar med MNPBEM Toolbox för MATLAB o...
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