Clay nanoparticle-supported single-molecule fluorescence spectroelectrochemistry.
Here we report that clay nanoparticles allow formation of a modified transparent electrode, spontaneous adsorption of fluorescent redox molecules on the clay layer, and thus the subsequent observation of single-molecule fluorescence spectroelectrochemistry. We can trace single-molecule fluorescence spectroelectrochemistry by probing the fluorescence intensity change of individually immobilized single redox molecules modulated via cyclic voltammetric potential scanning. This work opens a new approach to explore interfacial electron transfer mechanisms of redox reactions.
Lei
Chenghong
C
Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
Hu
Dehong
D
Ackerman
Eric
E
D000538:Aluminum Silicates / Q000737:chemistry*; D000077215:Clay; D055664:Electrochemical Techniques / Q000379:methods*; D053768:Metal Nanoparticles / Q000032:analysis* / Q000737:chemistry* / Q000648:ultrastructure; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D013050:Spectrometry, Fluorescence / Q000379:methods*
D000538:Aluminum Silicates; D000077215:Clay