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    Surface Science Blog You have only scratched the surface.

    ~ 3 min

    What is graphene oxide?

    Graphene oxide (GO) is the oxidized form of graphene. Graphene oxide is easy to process since it is dispersible in water and other solvents. Due to the oxygen in its lattice graphene oxide is not conductive, but it can be reduced to graphene by chemical methods.

    < 3 min

    What does self-cleaning mean?

    A self-cleaning surface is any surface with the ability to readily remove any dirt or bacteria on it. Self-cleaning surfaces can be divided into three different categories; superhydrophilic, photocatalytic and superhydrophobic.

    2 min

    How to characterize nanoparticle suspensions

    Nanoparticle suspensions are complex systems and their characterization includes several parameters such as size, concentration in solution, shape, surface charge and chemical composition. Here we provide a list of methods that could be used to characterize nanoparticle suspensions.

    ~ 3 min

    What are the differences between ASTM D971 and IEC 62961 standards?

    The new standard IEC 62961 for the transformer oil quality testing has just been released. In this blog post, the main differences between the old ASTM D971 and the new IEC 62961 standard are discussed.

    > 3 min

    How to measure contact angle hysteresis?

    Contact angle hysteresis can be measured with optical (needle and tilting methods) and force (Wilhelmy method) tensiometers.

    < 4 min

    How to deposit nanoparticles?

    There are several ways to deposit nanoparticles. Most methods are able to coat the surface, but for controlled monolayer deposition, more sophisticated methods are needed.

    ~ 4 min

    Characterization of polyelectrolyte multilayer build-up and structure

    The versatility of polyelectrolyte multilayers, PEMs, is high, which makes them interesting for e.g. biomedical applications. The functionality is largely determined by the layer properties, which needs to be understood to be tailored. Here, we show how PEMs can be characterized with QCM-D.

    > 2 min

    What is contact angle hysteresis?

    Contact angle hysteresis (CAH) is an important physical phenomenon. When you look through the window on a rainy day, you have probably noticed that some of the water droplets stick to the glass even though gravity is pulling them down. The phenomenon can be explained by contact angle hysteresis.

    < 3 min

    How to characterize surfactant solutions?

    Surfactants are used in many industrial fields. Characterization of surfactants is thus important to optimize their performance and the products they are applied to. Surface and interfacial tension measurements offer versatile method to study the properties and behavior of the surfactant solution.

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