Sökning: "Maria Cheung"

Hittade 5 avhandlingar innehållade orden Maria Cheung.

  1. 1. Development of Nanoporous Inorganic Carbonates for Pharmaceutical and Environmental Applications

    Författare :Maria Vall; Ocean Cheung; Maria Strømme; Jessica Rosenholm; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mesoporous magnesium carbonate; drug delivery; water purification; CO2 capture; catalysis; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

    Sammanfattning : Mesoporous magnesium carbonate (MMC) is a highly porous, anhydrous material which can be synthesized without the use of templates. This thesis shows how post- and in synthesis modification of MMC can create porous inorganic carbonates suitable for different pharmaceutical and environmental applications. LÄS MER

  3. 2. Education, Gender and Media : Empirical Essays in Development Economics

    Författare :Maria Cheung; Jakob Svensson; Jean-Marie Baland; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Development Policies; Education; Gender; Media; Cambodia; Economics; nationalekonomi;

    Sammanfattning : The first essay, Edutainment Radio, Women’s Status and Primary School Participation: Evidence from Cambodia, investigates whether exposure to education-entertainment radio leads to improved women's status and primary school participation. Results show significant behavioral effects related to women's decision-making power and investments in children's primary schooling in exposed areas. LÄS MER

  4. 3. Porous Amorphous Calcium Carbonate and Phosphate : Synthesis and Application

    Författare :Rui Sun; Ocean Cheung; Maria Strømme; Ken Welch; Denis Gebauer; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; amorphous calcium carbonate; amorphous calcium phosphate; stabilization; crystallization; porous material; drug delivery; gas adsorption; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

    Sammanfattning : The synthesis of porous amorphous calcium carbonate (ACC) and porous amorphous calcium phosphate (ACP) was developed in this thesis. Porous ACC with specific Brunauer–Emmett–Teller (BET) surface area of >350 m2/g was synthesized using a surfactant free approach. The high surface area of porous ACC was related to its nanostructure. LÄS MER

  5. 4. Selective laser sintering for 3D printing of medications

    Författare :Evgenii Tikhomirov; Jonas Lindh; Julian Quodbach; Maria Strömme; Ocean Cheung; Jarkko Ketolainen; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Additive manufacturing; 3D printing; Selective laser sintering; Personalized medicines; Drug manufacturing; Teknisk fysik med inriktning mot nanoteknologi och funktionella material; Engineering Science with specialization in Nanotechnology and Functional Materials;

    Sammanfattning : Suboptimal treatment caused by inaccurate dosing of prescribed medications is a challenging issue for the pharmaceutical industry. As a result, certain groups of patients, especially pediatric patients, may suffer from a lack of specific dosage forms, leading to potential side effects. LÄS MER

  7. 5. Porous Sorbents for Environmental Applications and Selective Laser Sintering 3D Printing of Dosage Forms

    Författare :Michelle Åhlén; Ocean Cheung; Maria Strömme; Jonas Lindh; Christel Bergström; Carlos Grande; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metal-organic frameworks; zeolitic imidazolate frameworks; mesoporous magnesium carbonate; greenhouse gas capture; adsorption; adsorption kinetics; additive manufacturing; selective laser sintering; personalized medicines; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

    Sammanfattning : The rising levels of greenhouse gas emissions from vehicular and industrial pollution constitute a serious concern not only for the environment but for our entire society. Traditional gas capture and separation techniques, such as amine scrubbing for CO2 gas separation, have been commonly used at a commercial scale, however issues relating to high costs and high energy requirements for sorbent regeneration have limited the efficiency of many of these techniques. LÄS MER