Sökning: "microbubbles"

Visar resultat 1 - 5 av 18 uppsatser innehållade ordet microbubbles.

  1. 1. Ultrasound Imaging Velocimetry using Polyvinyl Alcohol Shelled Microbubbles

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Ida Johansson; [2022]
    Nyckelord :Ultrasound imaging velocimetry; ultrasound contrast agents; polyvinyl alcohol; microbubbles; echo particle image velocimetry; Ultrasound imaging velocimetry; ultraljudskontrastmedel; polyvinylalkohol; mikrobubblor; echo particle image velocimetry;

    Sammanfattning : Current research within the field of ultrasound contrast agents (UCAs) aims at developing capsules which are not only acoustically active, but also have a chemically modifiable surface. This enables use in new areas, including targeted drug delivery and theranostics. LÄS MER

  3. 2. Implementation of Super-Resolution Ultrasound Imaging for in Vitro Experiments

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Kani Yara; [2022]
    Nyckelord :B-mode; Localization; Microbubbles; Poly-Vinyl-Alcohol; Tracking; Verasonics; B-mode; Localisering; Mikrobubblor; Poly-Vinyl-Alcohol; Spårning; Verasonics;

    Sammanfattning : Ultrasound imaging systems are a safe and affordable imaging modality with the disadvantage of low spatial resolution, especially for assessing smaller vessels. However, with the implementation of super-resolution ultrasound imaging techniques, studies have shown promising results in achieving a resolution below the diffraction limit. LÄS MER

  4. 3. Characterization of Agarose Microdroplet Properties for Acoustic Trapping of Encapsulated Bacteria and On-chip DNA Extraction

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Mikrosystemteknik

    Författare :Tinde Höjer; [2021]
    Nyckelord :;

    Sammanfattning : The aim of this project was to investigate if the translation of a DNA extraction protocol to on-chip, for the purpose of reducing the total assay time, would be possible. This was to be enabled by encapsulating bacteria in hydrogel microdroplets that would then be acoustically trapped in a microfluidic system. LÄS MER

  5. 4. Evaluation of ULM for sub-wavelength imaging of microvasculature in skeletal muscles : A simulation study

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Andreas Selin; [2020]
    Nyckelord :;

    Sammanfattning : A vital part of the human anatomy is the circulatory system, which branches out in a vast network of vessels delivering oxygen and other nutrients to all parts of the body. In a human adult, there are about 40 billion capillaries with a diameter of about 10 µm. LÄS MER

  7. 5. Development of a Tool for Imaging the Pumping-Out Behavior of Poly- Vinyl Alcohol Shelled Microbubbles

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Stina Hägglund; [2020]
    Nyckelord :Microbubbles; Pumping-out behavior; Verasonics; Ultrasound; Ultrafast imaging;

    Sammanfattning : For many years, microbubbles have been used as ultrasound contrast agents to improve the quality of diagnostics, seeing that they produce more backscattering ultrasound than blood does. Novel types of microbubbles and increased knowledge about their different behaviors have led to other suggested areas of use. LÄS MER