Dispersion Letters - Aims and Scope
Dispersion letters is an information platform dedicated to spread and exchange information between those working in various fields of dispersion research, phase separation, formulation, dispersion processing and quality control.
It is dedicated predominantly to experimental and applicational work explored with analytical instruments developed by LUM. Dispersion Letters publishes on-line articles, technical notes and reviews.
Our latest entries
Put Adhesion into Numbers - Quantify Wettability and Adhesion with Precision
2025
Ready to turn adhesion into hard numbers?
Join KRÜSS and LUM for an on-demand expert session where we move beyond gut feel to data-driven decisions in bonded joints, coatings, and surface treatments.
In this recorded webinar, “Put Adhesion into Numbers,” you’ll learn how to predict and quantify adhesion with precision:
Dr. Daniel Frese (KRÜSS) on wettability and contact angle measurements, plus advanced surface analysis with the Stood-up Drop®.
Dr. Arnold Uhl (LUM GmbH) on quantitative joint strength with LUMiFrac® and adhesion test methods on plasma-treated polymers.
Originally aired: Wednesday, October 29, 2025
More … Put Adhesion into Numbers - Quantify Wettability and Adhesion with Precision
Using the LUMiSpoc® single particle counter and sizer to develop Opti-Count® nanoscale number concentration reference materials
2025, English
Accurate nanoparticle characterization just got easier.
The LUMiSpoc® single particle optical counter measures particles from 40 nm to 5 µm with highly reproducible number-weighted size distributions and concentrations.
Combined with breakthrough Opti-Count® reference materials, the first traceable, number-based standards at 400 nm, it enables consistent, reliable nanoparticle analysis like never before.
Gravitational Separation Monitoring by X-ray based STEP-Technology® (LUMiReader® X-Ray): Measuring Principle and Validation
2025, English
The new LUMiReader® X-Ray introduces a powerful measurement principle built on quasi-monochromatic X-ray radiation, enabling precise analysis of even highly concentrated, opaque, or transparent nanoparticle suspensions. With minimal sample volumes, disposable cells that eliminate dilution, and simultaneous spatially resolved measurements, it delivers unmatched efficiency and accuracy. Advanced features include direct monitoring of sedimentation and emulsions, high-resolution particle size and mass fraction determination, and fully integrated data evaluation in SEPView® 7. Designed for reproducibility and precision, it sets a new standard in separation monitoring technology.
Monitoring of Critical Raw Material Recycling from Battery Black Mass using the LUMiReader® X-ray and LUMiSizer®
2025, English
With demand for clean energy soaring, the race to reclaim critical materials from spent batteries is on.
But how do you separate value from toxicity in complex black mass?
Discover how the LUMiSizer® and LUMiReader® X-Ray are transforming battery recycling - and what their findings could mean for the future of sustainable energy.
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