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Found 4 essays matching the above criteria.

  1. 1. The Effect of In Vitro Gastrointestinal Condition on Aggregation of Nano Silica Particles

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Shuai Bai; [2018]
    Keywords : Silica nanoparticles; in vitro digestion; Aggregation; Asymmetrical flow field flow fractionation; DLVO; membrane interaction; food technology; livsmedelsteknologi; Chemistry;

    Abstract : The presence of Nano particles in food is a topic that have gain much attention lately. The aim of this study is to investigate the aggregation behavior of nano silica under in vitro gastrointestinal conditions using asymmetric flow field flow fractionation (AF4) coupled with several detectors. READ MORE

  3. 2. Fate and Transport of Nano-TiO2 in Saturated Porous Media: Effect of pH, Ionic Strength and Flow Rate

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Tsegay Mengestab; [2015]
    Keywords : Nanoparticles; TiO2; saturated porous media; transport; DLVO theory;

    Abstract : Titanium dioxide nanoparticles are widely used in a variety of products, such as pigments, paints, paper, plastics, cosmetics, nano-fibers, food coloring and photovoltaic cells, and the industry is growing at anexponential rate. It is believed that by 2025, 2.5 million tons of nano-TiO2 will be manufactured annually. READ MORE

  4. 3. Mobilization and transport of different types of carbon-based engineered and natural  nanoparticles through saturated porous media

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Maryeh Hedayati; [2014]
    Keywords : Nanoparticle; MWCNT; C60; Transport and mobilization; DLVO theory; Ionic strength; Input concentration; Clean-bed filtration theory; Column test;

    Abstract : Carbon –based engineered nanoparticles have been widely used due to their small size and uniquephysical and chemical properties. They can dissolve in water, transport through soil and reach drinkingwater resources. READ MORE

  5. 4. Transport of Multi-Walled Carbon Nanotubes in Saturated Porous Media

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Bao Dixiao; [2012]
    Keywords : MWCNTs; solution chemistry; DLVO; straining; saturated porous media;

    Abstract : Carbon nanotubes (CNTs) have been one of the most studied nanoparticles and incorporated into various consumer products. It has been reported that CNTs can enter groundwater systems by accidental or intentional release into the subsurface. READ MORE