Bagrov DV, Adlerberg VV, Skryabin GO, Nikishin II, Galetsky SA, Tchevkina EM, Kirpichnikov MP, Shaitan KV. AFM-TEM correlation microscopy and its application to lipid nanoparticles.
Microsc Res Tech 2023. [PMID:
37125595 DOI:
10.1002/jemt.24336]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/04/2023] [Accepted: 04/19/2023] [Indexed: 05/02/2023]
Abstract
So far, only a few articles have demonstrated the possibility of correlated AFM-TEM imaging - sequential imaging of the same individual objects using atomic-force microscopy (AFM) and transmission electron microscopy (TEM). The current work contributes to the development of this approach by giving a step-by-step procedure, which yields pairs of correlated AFM-TEM images. We describe the application of correlation AFM-TEM microscopy to lipid nanoparticles (small extracellular vesicles and liposomes). The sizes of individual particles measured by the two methods were in good agreement, taking the tip broadening into account. The correlated AFM-TEM imaging can be valuable for single-particle analysis and nanometrology.
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