Probing rheological properties using Dynamic Light Scattering.
Structural characterization of H. pylori adherin BabA – Lewisb antigen interaction with X-ray crystallography and Isothermal Titration Calorimetry (ITC)
I recently found an interesting research article about the use of ITC to characterize how H. pylori (the bacterium that causes ulcers and stomach cancer) “works”, and I thought it would make an interesting blog.
It is estimated that the Gram-negative bacterium Helicobacter pylori is present in the stomachs of over half the world’s population. H. pylori infection can lead to peptic ulceration and it is the highest risk factor for gastric cancer. The …
Customer experience, Malvern Events, Microrheology, Particle size, Rheological and Viscosity, Tech Talk »
Last year at Malvern we put a lot of emphasis on inkjet ink technology due to the scale of growth in this area and the analytical benefits our products can bring when characterizing these inkjet inks.
To try to assist current and potential users in this sector our team of technical experts in particle characterization and rheology joined forces to deliver a three part webinar series (see Related Resources below) showing how their respective technologies could be used to help characterize and optimize inkjets inks in terms of pigment composition, ink …
Rheology is concerned with understanding how materials flow. A traditional mechanical rotational rheometer measures the rheological properties by applying a stress to the sample and detecting the response to that applied perturbation in various geometries (for example ‘cup and bob’, or ‘cone and plate’). More recently, microfluidics allow access to the ultra-high shear rate regime with the added benefit of low sample volume requirement to still obtain information on the bulk sample properties.
An entirely different approach is microrheology by light scattering. Here, the diffusion of tracer particles is observed to …
Greetings to the Malvern materials talk subscribers. As this is my first edition to the blog-o-sphere here at Malvern, I would like to start off by introducing myself. My name is Matt McGann, I am a product technical specialist and scientific adviser for Malvern Instruments based is sunny Southern California. My area of speciality is characterization of proteins and nano materials using dynamic light scattering (DLS) and chromatography technologies.
I wanted to take the opportunity to address those of you interested in how the Zetasizer nano systems can be used to …
Meet the Experts, Microrheology »
Few weeks ago, we told you that Malvern Instruments will take part at the 6th International Symposium on the Separation and Characterization of Natural and Synthetic Macromolecules (SCM-6) at the Leibniz-Institut für Polymerforschung Dresden e. V.
The SCM-6 provided a very good platform to bring together all the polymer and bio chemists that are especially interested in the different possibilities for characterization of their polymers.
As modern polymers are getting more and more complicated regarding their chemistry and structure the challenges for analytical tools increases in the same manner. Therefore the …
Dynamic Light Scattering, Microrheology, Particle size, Protein Mobility, Zeta potential, Zetasizer »
I am sure that you will have seen the activity around the launch of the Zetasizer Nano ZSP following its launch into the market last year. A lot of you may even have one of these instruments in your laboratory! Well, now is your chance to have your say as to whether or not it should win the SelectScience award for Best Spectroscopy Product of 2012. Voting is open now (and closes very soon!) therefore if you are also of the belief that the Zetasizer Nano ZSP is worthy of …Read the full story »
Dynamic Light Scattering, Gel permeation chromatography, Malvern Events, Microrheology, Particle size, Viscotek, Zeta potential, Zetasizer »
Malvern Instruments takes part at the 6th International Symposium on the Separation and Characterization of Natural and Synthetic Macromolecules (SCM-6) at the Leibniz-Institut für Polymerforschung Dresden e. V. The main interest of the conference is the separation and characterization of large molecules. The target audience includes specialists from analytical chemistry, polymer science, and life-science communities.
Malvern is a sponsor of the conference so keep an eye out for us at our booth. In addition, Bernd Tartsch, Product Applications Specialist for Separations at Malvern will speak about ‘How molecular weight and branching …
Corporate, Malvern Events, Microrheology, Zetasizer »
The new Zetasizer Nano ZSP made its first public appearance last week during the exhibits at the American Association of Pharmaceutical Scientists Meeting & Exposition in Chicago, IL. We were very pleased to talk with so many outstanding researchers who expressed interest in the instrument’s expanded capabilities for enhanced protein mobility measurements, protein size and distribution analysis, and microrheology characterization.
During the three days of the exhibit, visitors to the booth asked just about every possible question about the instrument, which kept us on our toes, and the response was overwhelmingly …
Corporate, Dynamic Light Scattering, Electrophoretic light scattering, Malvern Events, Meet the Experts, Microrheology, Protein Mobility, Zeta potential, Zetasizer »
After much discussion about the forthcoming addition to the Zetasizer Nano range, and build up of excitement around the launch, I can announce that the Zetasizer Nano ZSP has been officially released and is available to buy from your local Malvern office.
The ZSP is complimentary to the existing Zetasizer Nano instruments, and is now the premium system in the range. It can be used for the measurement of size, electrophoretic mobility of proteins, zeta potential of nanoparticles and surfaces, and optionally the microrheology of protein and polymer solutions. In addition to …
Malvern Events, Microrheology »
It’s Day 4 of the International Congress of Rheology in Portugal and so far it’s been a busy schedule with 11 sessions running in parallel with 2 daily poster sessions sandwiched in between. It is not quite Glastonbury but just like a music festival it can be difficult deciding which talks to attend, such is the choice on offer.
The session topics cover areas such as the rheology of complex fluids including emulsions, foams, polymers, suspensions and surfactants, to give a broad summary, but there are also sessions devoted to particular …