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    Surface Science Blog You have only scratched the surface.

    Susanna Laurén

    Susanna Laurén

    Susanna is an Application Scientist at Biolin Scientific. In her PhD thesis, she developed fabrication methods for a new type of inorganic-organic polymers. Microfabricated polymer chips were utilized as tool for biomolecule separation in analytical chemistry.

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    < 4 min

    Rheology: What is the difference between bulk and interfacial rheology?

    Rheology studies the flow and deformation of the fluid. Interfacial rheology studies the same for interfacial layers.

    ~ 2 min

    Enhanced oil recovery: Why measure wettability at high pressures and temperatures?

    Studies show the influence of EOR agents on the reservoir rock wettability. Studies are not considering the reservoir conditions i.e. high pressure.

    ~ 2 min

    Enhanced oil recovery: Comparison of oil reservoir wettability measurement techniques

    There are three commonly used wettability measurement techniques for oil reservoir characterization; Contact angle, Amott-Harvey, and USBM.

    < 4 min

    Why is interfacial rheology important?

    Interfacial rheology studies the flow properties of liquid interfaces.

    > 2 min

    What are superhydrophobic surfaces?

    Superhydrophobic surface is defined by having the static water contact angle above 150 ° and contact angle hysteresis less than 5 °.

    > 2 min

    Surface free energy measurements in practice

    Surface free energy can be calculated through contact angle measurements. Automated instruments are available.

    < 3 min

    Contact angle measurements to evaluate plasma treatment efficiency

    Plasma treatment is an often-used process prior to coating, printing or gluing to improve the wettability of the material.

    > 3 min

    Contact angle measurements on superhydrophobic surfaces in practice

    There are three contact angle measurement methods for superhydrophobic surfaces; static, advancing/receding and roll-off angle.

    < 4 min

    How to deposit graphene oxide thin films?

    Graphene oxide is hydrophilic and thus dispersible to water. Dispersibility makes the solution-based deposition of graphene oxide possible.

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