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Showing result 1 - 5 of 8 swedish dissertations matching the above criteria.

  2. 1. Toxicity and biological impact of metal and metal oxide nanoparticles : Focus on the vascular toxicity of ultra-small titanium dioxide nanoparticles

    Author : Narges Bayat; Susana Cristobal; Janeck James Scott-Fordsmand; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nanoparticles; Nanotoxicology; Ultra-small nanoparticles; Biochemistry; biokemi;

    Abstract : The application of nanoparticles (NPs) in different technologies has led to tremendous advancement in those fields.  Moreover, there is growing interest in application of ultra-small NPs (USNPs) at 1-3 nm due to their distinct molecule like features. Parallel to these promises, there is a growing concern regarding their safety. READ MORE

  4. 2. On the polymer-based nanocomposites for electrical switching applications

    Author : Venkatesh Doddapaneni; Muhammet Sadaka Toprak; Hans Edin; Rudolf Gati; Matti Ilmari Lehtonen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymer-based nanocomposites; Inorganic nanoparticles; Electrical arcs; Circuit breakers; Ablation Outgassing; Arc interruption capability; PMMA; CuO; Fe3O4; ZnO; Au; Radiative energy; Electric power; Arc temperature.; Physics; Fysik;

    Abstract : Recent research demonstrated that polymer based nanocomposites (PNCs) have been engineered in order to improve the arc interruption capability of the circuit breakers. PNCs are the combination of nano-sized inorganic nanoparticles (NPs) and polymers, opened up new developments in materials science and engineering applications. READ MORE

  5. 3. Composite Nanostructured Materials for Renewable Energy Applications

    Author : Elfatih Mohammed Mustafa; Omer Nur; Magnus Willander; Malik Maaza; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solar energy; Photocatalysis; Solar cells; Nanostructured materials; ZnO; CuO; Ta2O5; GaAs;

    Abstract : Diverse sources of energy are becoming increasingly significant in today's world. The most common source of energy today is fossil fuels, such as coal, oil, and gas. While this energy source has many advantages, it also comes with many problems. READ MORE

  6. 4. Low dimensional Zinc- and Copper Oxides and their Electronic, Vibrational and Photocatalytic Properties

    Author : Jakob Thyr; Tomas Edvinsson; Thomas Wågberg; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ZnO; Cu2O; CuO; Cu4O3; Photocatalysis; Raman spectroscopy; Nano materials; Quantum confinement; Quantum dots; Size dependent properties; Crystal orientation; Density functional theory; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Abstract : Pollution of water resources is a growing problem in the world and this has drawn the attention to photocatalysis, which is an emerging technology for water purification. In this thesis, low dimensional zinc oxide and copper oxides, which are promising photocatalytic materials, have been studied. READ MORE

  7. 5. Toxicity of metal containing micro- and nanoparticles : studies from an inhalation perspective

    Author : Johanna Kain; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Particles in urban environments have for a long time been associated with different health problems and diseases, such as worsening of asthma and chronic obstructive pulmonary disease as well as cancer and cardiovascular diseases. In addition, metal containing particles present in occupational settings and industries, particularly particles produced during welding, have been linked to several adverse health effects. READ MORE