Abstract
Optical microscopes have emerged as powerful tools towards electrochemical analysis of single nanoparticles, owing to their sufficient spatial and temporal resolution, high throughput, excellent sensitivity and non-contact nature. This review summarized recent progress on studying the nanochemistry at single-particle level by using four types of advanced optical techniques, such as fluorescence microscopy, surface plasmon resonance microscopy, dark-field microscopy, and electrogenerated chemiluminescence. Finally, we provided our opinions on the remaining challenges and prospects for future work in this field.
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