Application Notes

Various applications notes for QCM-D devices (QCM-I, QCM-I Mini)

The Measurement of Protein and Nano-Particle Adsorption using QCM-I

QCM-I is a powerful technique for measuring the adsorption or binding of polymers, proteins, nano-particles and other molecules to a surface. Multi-parametric data is obtained in real time, detailing changes of the hydrated mass and rigidity of layers coupled to the sensor surface. Here, the mass and viscoelastic changes can be understood for a range […]
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3 weeks ago

Combining QCM-I and OWLS Measurements to Understand Polymer Multilayer Deposition Processes

Understanding the adsorption of surface active layers is complex. The most useful real-time techniques provide multiple pieces of information, however a much clearer picture can be obtained by combining such techniques.1 QCM-I measures changes relating to the hydrated mass and rigidity of surface layers. Combining this with an optical technique such as OWLS, the “dry mass” […]
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3 weeks ago
Measuring Thick Coconut Oil Films and Cleaning using QCM-I - Figure 1

Measuring Thick Coconut Oil Films and Cleaning using QCM-I

Micron-thick films of Coconut Oil can be formed by spin-coating and the thickness of the solid films estimated using QCM-I. The viscoelastic changes in the layers can be observed during melting and subsequent structural reorganization on re-solidification. This data can be compared to the effect of dish-cleaning detergent on the films at low temperatures in […]
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3 weeks ago
Measurement of Polymer Multilayer Deposition using QCM-I QCM-D Figure 1

Measurement of Polymer Multilayer Deposition using QCM-I

The electrostatically driven adsorption of polymer and nano-particle multilayers is a well-established method for the physical and chemical transformation of surfaces to produce highly tailored and often “smart”, environmentally sensitive interfaces. The deposition process can be sensitively monitored using QCM-I, which provides information on the hydrated mass of the multilayer as well as its physical […]
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10 months ago