Search for dissertations about: "Raman spectra"

Showing result 1 - 5 of 73 swedish dissertations containing the words Raman spectra.

  1. 1. Application of Raman and Fluorescence Spectroscopy to Single Chromatographic Beads

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Mina Larsson; Uppsala universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; agarose; chelating group; confocal Raman spectroscopy; confocal scanning laser microscopy; gold nanoparticles; ligand distribution; functional group; neodymium; polymer beads; Raman; SERS; surface-enhanced Raman spectroscopy; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi;

    Abstract : Chromatography is a powerful technique, essential in chemical analyses and preparative separation in industry and research. Many different kinds of chromatographic material are needed, due to the large variety of applications. Detailed methods of characterisation are needed to design new chromatographic materials and understand their properties. READ MORE

  2. 2. Quantitative Surface Enhanced Raman Spectroscopy

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Anders Lorén; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; gold colloids; internal standard; surface enhanced Raman spectroscopy; SERS; PLS; PCA; SAM; quantitative;

    Abstract : Surface enhanced Raman spectroscopy (SERS) is a very attractive technique for detection of various organic and inorganic molecules due to its sensitivity and selectivity. The surface enhancement is achieved when the molecules of interest are on or in the vicinity of a metal surface, usually gold and silver. READ MORE

  3. 3. Applications in Surface Enhanced Raman Spectroscopy

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Charlotte Eliasson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SERS; surface enhanced Raman spectroscopy; image analysis; lymphocytes; PCA; doxorubicin; living cells; PLS;

    Abstract : The aim of this thesis is to address specific applications of Raman spectroscopy and specifically surface enhanced Raman spectroscopy, SERS. It includes an introduction to the techniques and several applications. The focus has been on how to achieve high precision SERS measurements, both qualitatively and quantitatively. READ MORE

  4. 4. Raman Spectroscopy and Hyperspectral Analysis of Living Cells Exposed to Nanoparticles

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Linnea Ahlinder; Uppsala universitet.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Raman spectroscopy; Hyperspectral analysis; Multivariate data analysis; Nanotoxicology; Graphene oxide; Iron oxide; Titanium dioxide; Cells;

    Abstract : Nanoparticles, i.e. particles with at least one dimension smaller than 100 nm, are present in large quantities in ambient air and can also be found in an increasing amount of consumer products. It is known that many nanomaterials have physicochemical properties that differ from physicochemical properties of the same material in bulk size. READ MORE

  5. 5. Theoretical Studies of Raman Scattering

    University dissertation from Stockholm : KTH

    Author : Abdelsalam Mohammed; KTH.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Chemistry Theoretical chemistry; NATURVETENSKAP Kemi Teoretisk kemi;

    Abstract : Different theoretical approaches have been presented in this thesis to study the Raman scattering effect. The first one is response theory applied up to third order of polarization, where the determination of α, β and γ is used to calculate linear Raman scattering (resonance Raman scattering (RRS) and normal Raman scattering (NRS)), hyper Raman scattering (HRS) and coherent anti-Stokes Raman scattering (CARS), respectively. READ MORE