Surface coatings can be applied to a bulk material to add desirable properties such as biocompatibility, responsiveness to various stimuli, drug delivery capabilities and antibacterial qualities. Polymer brushes, which respond to changes in temperature, pH and ionic strength have been of great interest as surface coatings for biomedical and biological applications. In this study, the QCM-D technology was successfully used to track and understand the mechanism of swelling and collapse of polymer brushes.
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