Essays about: "structural water molecules"

Showing result 1 - 5 of 11 essays containing the words structural water molecules.

  1. 1. Application of Fourier Transforms to time-resolved ambient pressure spectroscopy operando studies of CO oxidation over Pt(111)

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Author : Grigore-Leon Ratiu; [2024]
    Keywords : Physics and Astronomy;

    Abstract : The study of heterogeneous catalysis has important implications in increasing the efficiency of industrial processes and in reducing the emissions of greenhouse gases from sources such as automobiles. A reaction with high industrial relevance is the oxidation of CO on noble metal catalysts. READ MORE

  3. 2. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Douglas Björkengren; [2023]
    Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE

  4. 3. Competition between Phase Separation and Micellization in a Coarse-Grained Protein Model with Two Components

    University essay from Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Author : Fangxuan Lyu; [2022]
    Keywords : Physics and Astronomy;

    Abstract : Intrinsically disordered proteins (IDPs) are widely believed to play a key role in the for- mation of intracellular biomolecular condensates through liquid-liquid phase separation (LLPS). Furthermore, it has been shown in vitro that several IDPs are able to phase sepa- rate on their own. READ MORE

  5. 4. Unveiling structural heterogeneities in aqueous solutions using dynamic light scattering

    University essay from Stockholms universitet/Fysikum

    Author : Oskar Eklund; [2021]
    Keywords : ;

    Abstract : To investigate the existence  of  molecular heterogeneties in mixtures of DMSO-water, the dynamics were measured with the method of dynamic light scattering (DLS). Three different compositions (20 mol %, 33 mol% and 60 mol%) were included in the study and measured at room temperature (295 K) and for one composition (33 mol %) also a temperature dependence (from 295 K down to 263 K) was measured. READ MORE

  6. 5. Biophysical differences between COPD, CF and healthy airways mucus.

    University essay from Malmö universitet/Fakulteten för hälsa och samhälle (HS)

    Author : Vladislav Genevskiy; [2020]
    Keywords : CF; COPD; mucus; structure;

    Abstract : An improved understanding of the mucus biophysical alteration in chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF) patients is a milestone towards a more accurate and effective treatment of these common and highly debilitating conditions. Little is known about the variations in mucus structure between ill and healthy individuals. READ MORE