Tag Archives: minimum concentration


Published 7 Feb 2019

Nanobubbles – Are they real?

Why don’t they float to the top? We all know what happens to bubbles in water: They float to the top and disappear, eventually. In a bubbly foam bath, the bubbles are stabilized with surfactants and other ingredients. This extends…READ MORE >

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Published 7 Mar 2017

Can I use DLS for xyz?

How can I use DLS for sample xyz? What sample concentration / refractive index is needed for reliable DLS size measurements? Has it been done before? In Dynamic Light Scattering (DLS) intensity fluctuations in the sample are analyzed to obtain…READ MORE >

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Published 27 Dec 2016

What is a virus?

How to measure it with DLS? What virus concentration is needed for reliable DLS size measurements?   What is a virus? In cell biology, a virus is a self assembly of organic molecules (mainly proteins) in the size range 20…READ MORE >

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Published 21 Jan 2016

Zetasizer Sensitivity – for protein DLS

How do I know the minimum concentration needed for measuring the size of my protein? We are asked this question all the time when we are demonstrating the Zetasizer.  Happily, if the Zetasizer software is installed (and it can be…READ MORE >

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