QSense

3 min

What is dissipation?

Talking about QCM-based instrumentation, one often comes across the concepts of ‘dissipation’ or ‘damping’. Here we explain what these concepts mean, and why are they relevant.

~ 6 min

Nanoparticle characterization: an overview of key physicochemical parameters

Nanoparticle suspensions are complex systems, and understanding their interaction with their environment requires characterization of a broad range of physicochemical properties. Here we present an overview of the key parameters that can be used to profile nanoparticle suspensions.

< 6 min

How to measure crosslinking and collapse with QCM-D

Biocompatibility, antibacterial qualities, and drug delivery can be achieved by for example polymer brushes, polyelectrolyte multilayers or hydrogels. When tailoring the interfacial properties of these thin films, the layer conformation, such as crosslinking and degree of hydration is important.

~ 5 min

How to measure mass and thickness with QCM-D

Surface interaction processes and binding of molecules can be characterized by real-time nanoscale techniques, such as QCM-D, which measures mass and thickness.

> 5 min

How to measure swelling of thin films with QCM-D

The ability to take up and release water is central for many materials, such as hydrogels, whose function depend on the ability to hydrate and dehydrate. Hydration and swelling are also central when dealing with hygroscopic materials. QCM-D can be used to characterize such swelling phenomenon.

~ 6 min

How to characterize viscoelastic properties with QCM-D

Wood, ice and the disks in a human spine are all viscoelastic materials. Viscoelasticity is a quality involving both viscous and elastic properties at the same time. QCM-D is a surface sensitive technology that can characterize the viscoelastic properties of thin films.

> 5 min

How to measure surface adsorption and desorption with QCM-D

Adsorption and desorption phenomena are important to study in e.g. surface science and bio-related applications, where molecules are interacting with surfaces.

> 5 min

How to measure thin film degradation with QCM-D

Thin film degradation is sometimes wanted and sometimes not. In both cases, it can be important to characterize so that it can be optimized and controlled.

4 min

What can QCM-D technology be used for?

Surfaces are all around us. To control the macroscale we need to understand and tune the nanoscale. To our aid, we use analytical tools, such as QCM-D

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