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A combined nanoplasmonic and electrodeless quartz crystal microbalance setup
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View: Figures


Image of FIG. 1.
FIG. 1.

Schematic illustration (not to scale) of the electrode configuration and the measurement setup for the combined electrodeless QCM/LSPR chamber.

Image of FIG. 2.
FIG. 2.

(a) Schematic illustration of the sensing structure used for liquid phase measurements. (b) SEM image of the quartz crystal sensor in (a). (c) Schematic illustration of the truncated palladium nanocone structures used to study hydrogen storage and release in the gas phase. (d) SEM images of the palladium structures in (c).

Image of FIG. 3.
FIG. 3.

(a) Schematic illustration of (I) the formation of a biotinylated bilayer, (II) streptavidin binding to the functionalized bilayer (I), and (III) binding of biotinylated vesicles to streptavidin. (b) QCM-D data for the experiment in (a). Vesicles enter the chamber and start adsorbing at . Streptavidin binding starts at and the binding of biotinylated vesicles starts at . Data from the fifth overtone are shown. c) Frequency shift measured with QCM [same data as in (b)] and LSPR peak shift during the experiment in (a) and (b). The inset is a magnification of the optical response during lipid bilayer formation. The solid lines are guides for the eye.

Image of FIG. 4.
FIG. 4.

Optical extinction and QCM frequency shifts measured during hydrogen absorption in and desorption from truncated palladium cones. The hydrogen/palladium ratio calculated from the frequency shift, using the Sauerbrey equation, is also indicated in the figure.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A combined nanoplasmonic and electrodeless quartz crystal microbalance setup