We invite you to explore a series of articles recently published in Powders (ISSN: 2674-0516) in 2025 on particle characterization, description, and separation in multidimensional systems, featured in the Topical Collection “Multidimensional Particle Properties: Characterization, Description, Separation”.

1. “Multidimensional Particle Separation by Tilted-Angle Standing Surface Acoustic Waves—Physics, Control, and Design”
by Sebastian Sachs, Jörg König and Christian Cierpka
Powders 2025, 4(1), 2; https://doi.org/10.3390/powders4010002
Available online: https://www.mdpi.com/2674-0516/4/1/2

2. “In Situ Tracking of Nanoparticles During Electrophoresis in Hydrogels Using a Fiber-Based UV-Vis System”
by Matthäus Barasinski, Valentin Jasper, Marion Görke and Georg Garnweitner
Powders 2025, 4(1), 3; https://doi.org/10.3390/powders4010003
Available online: https://www.mdpi.com/2674-0516/4/1/3

3. “Toward Multi-Dimensional Separation of Nanoparticles in Tubular Centrifuges”
by Marvin Winkler, Marco Gleiss and Hermann Nirschl
Powders 2025, 4(1), 4; https://doi.org/10.3390/powders4010004
Available online: https://www.mdpi.com/2674-0516/4/1/4

4. “Selective Multidimensional Particle Fractionation Applying Acoustic Fields”
by Krischan Sandmann and Udo Fritsching
Powders 2025, 4(1), 5; https://doi.org/10.3390/powders4010005
Available online: https://www.mdpi.com/2674-0516/4/1/5

5. “Development and Investigation of a Separation Process Within Cross-Flow with Superimposed Electric Field”
by Simon Paas, Kai Nikolaus and Sergiy Antonyuk
Powders 2025, 4(1), 6; https://doi.org/10.3390/powders4010006
Available online: https://www.mdpi.com/2674-0516/4/1/6

6. “Multidimensional In Situ Characterization of Surface and Free Nanobubbles in Oxidic Nanofluids”
by Annett Wollmann, Bernd Benker, Vinzent Olszok and Alfred P. Weber
Powders 2025, 4(1), 7; https://doi.org/10.3390/powders4010007
Available online: https://www.mdpi.com/2674-0516/4/1/7

7. “Selective Agglomeration and Separation from Heterogeneous Suspensions of Submicron Particles by Controlling Electrostatic Particle Interactions”
by Christoph Peppersack, Arno Kwade and Sandra Breitung-Faes
Powders 2025, 4(1), 8; https://doi.org/10.3390/powders4010008
Available online: https://www.mdpi.com/2674-0516/4/1/8

8. “Insights into Stability and Selective Agglomeration in Binary Mixtures of Colloids: A Study on Gold Nanoparticles and Ultra-Small Quantum Dots”
by Azita Rezvani, Alexander Kichigin, Benjamin Apeleo Zubiri, Erdmann Spiecker and Doris Segets
Powders 2025, 4(1), 9; https://doi.org/10.3390/powders4010009
Available online: https://www.mdpi.com/2674-0516/4/1/9

9. “Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements”
by Torben Norbert Rüther, Sebastian Gröne, Christopher Dechert and Hans-Joachim Schmid
Powders 2025, 4(2), 11; https://doi.org/10.3390/powders4020011
Available online: https://www.mdpi.com/2674-0516/4/2/11

10. “Three-Dimensional Particle-Discrete Datasets: Enabling Multidimensional Particle System Characterization Using X-Ray Tomography”
by Ralf Ditscherlein and Urs A. Peuker
Powders 2025, 4(2), 11; https://doi.org/10.3390/powders4020012
Available online: https://www.mdpi.com/2674-0516/4/2/12

11. “Experimental and Simulative Investigation of Deterministic Lateral Displacement and Dielectrophoresis Methods for Continuous Multi-Property Particle Sorting”
by Jonathan Kottmeier, Maike Sophie Wullenweber, Zhen Liu, Ingo Kampen, Arno Kwade and Andreas Dietzel
Powders 2025, 4(2), 13; https://doi.org/10.3390/powders4020013
Available online: https://www.mdpi.com/2674-0516/4/2/13