Publication detail

Towards 3D determination of the surface roughness of core-shell microparticles as a routine quality control procedure by scanning electron microscopy

HÜLAGÜ, D. TOBIAS, C. DAO, R. KOMAROV, P. RURACK, K. HODOROABA, V.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

Recently, we have developed an algorithm to quantitatively evaluate the roughness of spherical microparticles using scanning electron microscopy (SEM) images. The algorithm calculates the root-mean-squared profile roughness (RMS-RQ) of a single particle by analyzing the particle's boundary. The information extracted from a single SEM image yields however only two-dimensional (2D) profile roughness data from the horizontal plane of a particle. The present study offers a practical procedure and the necessary software tools to gain quasi three-dimensional (3D) information from 2D particle contours recorded at different particle inclinations by tilting the sample (stage). This new approach was tested on a set of polystyrene core-iron oxide shell-silica shell particles as few micrometer-sized beads with different (tailored) surface roughness, providing the proof of principle that validates the applicability of the proposed method. SEM images of these particles were analyzed by the latest version of the developed algorithm, which allows to determine the analysis of particles in terms of roughness both within a batch and across the batches as a routine quality control procedure. A separate set of particles has been analyzed by atomic force microscopy (AFM) as a powerful complementary surface analysis technique integrated into SEM, and the roughness results have been compared.

Keywords

Core-shell particles; Image analysis; Roughness; Scanning electron microscopy; Atomic force microscopy; Tilting; Batch analysis

Authors

HÜLAGÜ, D.; TOBIAS, C.; DAO, R.; KOMAROV, P.; RURACK, K.; HODOROABA, V.

Released

2. 8. 2024

Publisher

NATURE PORTFOLIO

Location

BERLIN

ISBN

2045-2322

Periodical

Scientific Reports

Year of study

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

Pages to

Pages count

URL

https://www.nature.com/articles/s41598-024-68797-7

Full text in the Digital Library

http://hdl.handle.net/11012/250190

BibTex

@article{BUT194080,
  author="Deniz {Hülagü} and Charlie {Tobias} and Radek {Dao} and Pavel {Komarov} and Knut {Rurack} and Vasile‑Dan {Hodoroaba}",
  title="Towards 3D determination of the surface roughness of core-shell microparticles as a routine quality control procedure by scanning electron microscopy",
  journal="Scientific Reports",
  year="2024",
  volume="14",
  number="1",
  pages="1--13",
  doi="10.1038/s41598-024-68797-7",
  issn="2045-2322",
  url="https://www.nature.com/articles/s41598-024-68797-7"
}