~ 3 min

How much protein adsorbs to glass and plastics?

Proteins tend to passively adsorb to surfaces. The amount adsorbed depends on many factors such as the protein itself, the ambient conditions and the surface material. So how can the adsorbed amount at these various conditions be assessed? Here we show how protein adsorption can be quickly measured.

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~ 3 min

What is wettability?

Wettability is the preference of a liquid to be in contact with a solid surrounded by another fluid (liquid or gas). Depending on the application, wettability can be wanted or not.

> 5 min

What is piezoelectricity?

Bone, wood and quartz are all piezoelectric materials. But what is piezoelectricity? And where does this remarkable property come from?

~ 7 min

Does the QCM fundamental frequency matter?

In QCM instrument specifications and experimental descriptions, there is always a reference to the fundamental frequency. But does the fundamental frequency really matter? Here we sort out the details and explain how and why it matters in a measurement situation.

~ 3 min

What is graphene oxide?

Graphene oxide (GO) is the oxidized form of graphene. Graphene oxide is easy to process since it is dispersible in water and other solvents. Due to the oxygen in its lattice graphene oxide is not conductive, but it can be reduced to graphene by chemical methods.

> 3 min

How to rank detergent performance in less than an hour

Throughout the cleaning product life cycle, ranking of performance is an important type of assessment. It can be quite time-consuming, but with the right approach, it is possible to evaluate and rank the product performance in less than one hour. Here we tell you how.

> 2 min

What is surface free energy?

Surface free energy can be considered as the surface tension of a solid. Surface free energy is calculated through the contact angle measurements. By knowing the surface free energy of the solid, one can predict the behavior of any liquid on the surface.

> 4 min

The Sauerbrey equation or viscoelastic modeling? – what happens if you use the wrong method?

Quantifying QCM mass, there are two different approaches to choose from, the Sauerbrey equation or viscoelastic modeling. But what if the wrong method is applied, what happens then? How critical are the consequences? Here we describe what happens if the wrong quantification approach is used.

< 3 min

What does self-cleaning mean?

A self-cleaning surface is any surface with the ability to readily remove any dirt or bacteria on it. Self-cleaning surfaces can be divided into three different categories; superhydrophilic, photocatalytic and superhydrophobic.

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