Surface Science Blog

How nanomaterials interact with the environment - Understanding nanoparticle - cell membrane interactions

Posted by Matthew Dixon on October 13, 2016

How does a nanomaterial interact with a cell?


How nanomaterials interact with the environment after they have been disposed of has many implications for potential toxicity and health concerns. Whether nanomaterials are being incorporated into commercial goods for their anti-microbial properties such as in work-out clothes or used for targeted drug therapies their overall prevalence is increasing. Therefore, the likelihood of someone coming into contact with these materials is also increasing.

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Topics: QCM-D, nanoparticles, environment

Lithium ion battery materials - powering the future

Posted by Kenneth Olesen PhD on June 23, 2016

According to the 2016 World Energy Issues Monitor1, electric storage features in second place on the list of top critical uncertainties keeping CEOs, ministers and energy experts awake at night.

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Topics: QCM-D, clean tech

Advances in Wettability Analysis for Superhydrophobic Surfaces

Posted by Maiju Pöysti on May 12, 2016

Superhydrophobic surfaces toward real-world applications



Soft Matter and Wetting research group at Aalto University published insights about superhydrophobic surfaces in Science recently1. The non-wetting surfaces have experienced an enormous boost of interest after the observation of superhydrophobicity and self-cleaning effect in natural lotus leaves.

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Topics: Contact Angle, superhydrophobic surfaces

Complex fluid-fluid system can be characterized with interfacial rheology

Posted by Maiju Pöysti on April 28, 2016

Complex fluid/fluid systems, such as emulsions, gels and various surfactant solutions, are the basis of most of our everyday consumer products from detergents to healthcare, but also found in biology and industrial processes such as in enhanced oil recovery and mineral processing.Typically these complex systems include surface active constituents that creates adsorbed layer on the fluid-fluid interfaces. Properties of this adsorbed layer are important to define quality of the final product.

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Topics: rheology

Evaluate the influence of surface roughness on wettability

Posted by Matthew Dixon on April 13, 2016

While contact angle (CA) goniometry involving placing a drop of liquid on a surface and measuring the resulting angle has been around for many years, we have only recently developed a system to account for the underlying surface’s micro-scale roughness.

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Topics: Wettability, Adhesion, Contact Angle

Wettability analysis for Inkjet Printing

Posted by Maiju Pöysti on April 4, 2016

Surface tension of inkjet inks and the wettability of the printing substrate are important factors influencing the final printing quality and process reliability. Surface tension and interfacial interactions can be explored with various tensiometry technologies: Equilibrium and dynamic surface tension measurements can be utilized in ink formulation and development.

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Topics: Wettability, Contact Angle

Why Transformer Oil testing is so important

Posted by Gunilla Rydén on January 20, 2016


Transformers are used by the electrical industry to transfer electrical energy from one circuit to another. The oil surrounding the coils in a power transformer provide cooling, insulation and protection against corona and arcing. It is normally obtained by fractional distillation and subsequent treatment of crude petroleum. This is why this oil is also known as mineral insulating oil.

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Topics: Interfacial Tension and Analysis

What does QCM-D have in common with a church bell?

Posted by Jennie Ringberg on December 15, 2015


How does QCM-D work, really? Perhaps you know that a QCM-D sensor is made out of quartz, which is a piezoelectric material. But what does that really mean? And how can that property of the quartz give you information about how much mass you have put on your sensor, or how soft that material on the sensor is?

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Topics: QCM-D

Protein Aggregation in Neurodegenerative Diseases

Posted by Fredrik Andersson on December 8, 2015

Proteins are vital for life and perform a wide range of essential biochemical tasks in all living organisms. Cells of these organisms are hence under a constant pressure to maintain an optimal protein environment, assuring all proteins are correctly folded and functional.

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Topics: Protein Adsorption, Protein Aggregation

How surface roughness and wettability affects biocompatibility

Posted by Anna Oom on November 24, 2015

Various types of artificial materials are being utilized as implants in all fields of medicine. The surface properties of the implant determine its interactions with the surrounding host tissue. Physicochemical properties of the surface, like wettability and surface roughness, are of prime importance for the optimization of adhesion, spreading and proliferation of cells.



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Topics: Biomaterials, Wettability, Surface Roughness, Protein Adsorption, Adhesion, Surface Free Energy