nanoFeatures: a cross-platform application to characterize nanoparticles from super-resolution microscopy images

Cristina Izquierdo-Lozano, Niels van Noort, Stijn van Veen, Marrit M.E. Tholen, Francesca Grisoni (Corresponding author), Lorenzo Albertazzi (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Super-resolution microscopy and Single-Molecule Localization Microscopy (SMLM) are powerful tools to characterize synthetic nanomaterials used for many applications such as drug delivery. In the last decade, imaging techniques like STORM, PALM, and PAINT have been used to study nanoparticle size, structure, and composition. While imaging has progressed significantly, image analysis has often not advanced accordingly and many studies remain limited to qualitative and semi-quantitative analyses. Therefore, it is imperative to have a robust and accurate method to analyze SMLM images of nanoparticles and extract quantitative features from them. Here, we introduce nanoFeatures, a cross-platform Matlab-based app for the automatic and quantitative analysis of super-resolution images. nanoFeatures makes use of clustering algorithms to identify nanoparticles from the raw data (localization list) and extract quantitative information about size, shape, and molecular abundance at the single-particle and single-molecule levels. Moreover, it applies a series of quality controls, increasing data quality and avoiding artifacts. nanoFeatures, thanks to its intuitive interface, is also accessible to non-experts and will facilitate analysis of super-resolution microscopy for materials scientists and nanotechnologies. This easy accessibility to expansive feature characterization at the single particle level will bring us one step closer to understanding the relationship between nanostructure features and their efficiency (https://github.com/n4nlab/nanoFeatures).

Original languageEnglish
Pages (from-to)20885-20892
Number of pages8
JournalNanoscale
Volume16
Issue number45
Early online date16 Oct 2024
DOIs
Publication statusPublished - 7 Dec 2024

Bibliographical note

Publisher Copyright:
© 2024 The Royal Society of Chemistry.

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