Surface Science Blog

Brian Rodenhausen PhD

Ph.D., Field Application Scientist at Biolin Scientific
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Recent Posts

Characterization of Environmentally Responsive Polymers

Posted by Brian Rodenhausen PhD on August 29, 2017

Thanks to the complementary information combinatorial QCM-D and ellipsometry can provide, these two techniques will allow you to simultaneously monitor both polymer brush swelling and deswelling behavior, as well as attachment and detachment of protein. It is also possible to separate these two influences on total interfacial adsorbate layer mass; processes which neither of the two techniques can do alone. 

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Topics: ellipsometry

Need to characterize thin film build-up?

Posted by Brian Rodenhausen PhD on August 23, 2017

There is a measurement setup that allows for efficient investigation and characterization of thin film build-up, as well as monitoring of structural behavior as a function of variations in the surrounding environment such as surface material, salt concentration, pH, temperature etc. Despite their very different operating principles, in several ways quartz crystal microbalance with dissipation monitoring (QCM-D) and spectroscopic ellipsometry (SE) are kindred spirits. 

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Topics: ellipsometry

5 Tips &Tricks When Taking Spectroscopic Ellipsometry and QCM-D Measurements

Posted by Brian Rodenhausen PhD on February 22, 2017

Most effort in a spectroscopic ellipsometry and QCM-D measurement is done setting up the instruments and liquid flow assembly. To help make life a little easier, consider the following tips & tricks.

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Topics: QCM-D, Q-Sensors, ellipsometry