Sökning: "nanoparticles"

Visar resultat 1 - 5 av 134 uppsatser innehållade ordet nanoparticles.

  1. 1. Method for interfacial energy determination of gold nanoparticles on solid surfaces

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Författare :Mikaela Petersson; [2020]
    Nyckelord :Nanoparticles; sintering; interfacial energies; Young s equation; contact angle; Au; Si; silica; Sapphire; Al2O3; SEM; AFM; TEM; FFT; Science General;

    Sammanfattning : The high surface-to-volume ratio of nanoparticles (NPs) makes them an interesting source for scientific research. How interfacial energies interplay between such a small structure and a solid bulk surface, are important because of the versatile applications NPs regard. LÄS MER

  2. 2. Out-of-plane Ferromagnetic Resonance (FMR) measurements on magnetic nanoparticle dispersions for biomedical sensor applications

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets fysik

    Författare :Markus Back; [2020]
    Nyckelord :Ferromagnetic; magnetic; resonance; FMR; EPR; nanoparticle; microwave; coplanar; waveguide; cavity; s-parameter; gilbert; damping; gyromagnetic; liquid; biosensor; landau; lifshits; spin; polymer; composites; engineering physics; teknisk fysik; magnetism; ferromagnetisk; vågledare; resonans; mikrovågsteknik; nanopartiklar;

    Sammanfattning : In this master work, we investigated the feasibility of a magnetic resonance measurement technique using magnetic nanoparticle dispersions in both liquid and solid form. The implementation is realised as a coplanar waveguide operating in the frequency range of 0.5 - 20 GHz and an electromagnet producing a static magnetic field of strength up to 1. LÄS MER

  3. 3. Do Nanoparticles Affect Neuronal Function? - Establishment of a Microelectrode-Based Assay

    Master-uppsats, Lunds universitet/Tillämpad biokemi

    Författare :Markus Nylander; [2020]
    Nyckelord :Microelectrode array; gold nanoparticles; silver nanoparticles; immunocytochemistry; scanning electron microscopy; human neural progenitor cells; human induced pluripotent stem cells; applied biochemistry; tillämpad biokemi; Biology and Life Sciences; Technology and Engineering;

    Sammanfattning : Nanomaterials are used extensively in industry and daily life but comparatively little is known about the possible health effects. Silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) are two metal nanoparticles that have been intensively studied. LÄS MER

  4. 4. Gamma Radiation-Induced Synthesis of Cerium Oxide Mesocrystals

    Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Michel Goy; [2019]
    Nyckelord :;

    Sammanfattning : Nanoparticles of cerium dioxide was synthesized by gamma irradiation of aqueous solutions containing CeCl3 and CeBr3. ICP-OES was used to determine the precipitation yield. X-ray powder diffraction and transmission electron microscope were used to characterize the products. LÄS MER

  5. 5. Artificial photosynthesis - 4-Aminobenzoic acids effect on charge transfer in a photo catalytic system

    Kandidat-uppsats, Uppsala universitet/Materialteori

    Författare :Simon Moberg; [2019]
    Nyckelord :artificial photosynthesis; aminobenzoic acid; charge transfer; plasmon; induced; plasmon induced; nanostructure; nanostructures; solar energy; nano particles; nano particle; artificiell fotosyntes; aminobensoesyra; laddningsöverföring; plasmon; inducerad; plasmoninducerad; nanostruktur; nanostrukturer; solenergi; nanopartiklar; nanopartikel;

    Sammanfattning : Artificial photosynthesis is used to harvest solar energy and store it in the form of chemical bonds. The system of interest in this study does this by splitting water into hydrogen and oxygen gas through a plasmon assisted process, collective oscillations from free electron gas. LÄS MER