< 3 min

Hydrophilic coatings to improve protein resistance of biomedical devices

Surface chemistry plays a significant part in terms of interactions with the human tissue.

< 6 min

Pendant drop method for surface tension measurements

Surface tension can be measured with force tensiometer using Du Noüy ring or Wilhelmy plate. Or with optical tensiometer using the pendant drop method.

< 4 min

Surface tension measurement by Du Noüy ring method

Du Noüy method utilizes the interaction of a platinum ring with the surface of the liquid.

> 3 min

Surface tension of water – Why is it so high?

The surface tension of water is about 72 mN/m at room temperature which is one of the highest surface tension for liquid.

~ 5 min

What is a Langmuir film?

Langmuir film can be defined as an insoluble monolayer of atoms, molecules, or even nanoparticles floating at the liquid-gas interface (or liquid-liquid).

> 2 min

Work of adhesion - What is it and how to measure it?

Work of adhesion is defined as a work required to separate two phases from each other.

~ 3 min

Wenzel equation – How roughness is related to wettability?

Wenzel equation states that adding surface roughness will enhance the wettability caused by the chemistry of the surface.

> 5 min

Wettability measurements to evaluate biocompatibility

Interactions at the material surface is influenced by the wettability of the material. Wettability measurements are done to evaluate biocompatibility.

~ 3 min

3 examples where adhesion is important

Adhesion plays an important role in daily and industrial processes. Adhesion can be either wanted or unwanted.

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