Jump to main content
Jump to site search

Issue 7, 2018
Previous Article Next Article

Super-resolution optical microscopy resolves network morphology of smart colloidal microgels

Author affiliations

Abstract

We present a new method to resolve the network morphology of colloidal particles in an aqueous environment via super-resolution microscopy. By localization of freely diffusing fluorophores inside the particle network we can resolve the three dimensional structure of one species of colloidal particles (thermoresponsive microgels) without altering their chemical composition through copolymerization with fluorescent monomers. Our approach utilizes the interaction of the fluorescent dye rhodamine 6G with the polymer network to achieve an indirect labeling. We calculate the 3D structure from the 2D images and compare the structure to previously published models for the microgel morphology, e.g. the fuzzy sphere model. To describe the differences in the data an extension of this model is suggested. Our method enables the tailor-made fabrication of colloidal particles which are used in various applications, such as paints or cosmetics, and are promising candidates for drug delivery, smart surface coatings, and nanocatalysis. With the precise knowledge of the particle morphology an understanding of the underlying structure–property relationships for various colloidal systems is possible.

Graphical abstract: Super-resolution optical microscopy resolves network morphology of smart colloidal microgels

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Nov 2017, accepted on 25 Jan 2018 and first published on 26 Jan 2018


Article type: Paper
DOI: 10.1039/C7CP07648G
Citation: Phys. Chem. Chem. Phys., 2018,20, 5074-5083
  •   Request permissions

    Super-resolution optical microscopy resolves network morphology of smart colloidal microgels

    S. Bergmann, O. Wrede, T. Huser and T. Hellweg, Phys. Chem. Chem. Phys., 2018, 20, 5074
    DOI: 10.1039/C7CP07648G

Search articles by author

Spotlight

Advertisements