The following articles were authored by andylong

An Invaluable Guide to Dynamic Imaging Particle Analysis for Protein Therapeutics

proteintherapeuticsguideDynamic imaging particle analysis uses digital imaging to characterise particles in a fluid with a variety of different measurements. The microscope images of particles are obtained automatically permitting significantly large numbers of particles to be examined, producing a better understanding of a sample’s composition. Continue reading An Invaluable Guide to Dynamic Imaging Particle Analysis for Protein Therapeutics

Particle Size Distribution Analysis – An Overview

Within the context of particle science, particle size analysis refers to determination of size, range and/or mean size of particles present. This analysis is crucial for research and commercial applications in a number of industries and a wide variety of applications. In the chemical industry, when powders form one or more of the reactants, precise constitution of the powder is vital to ensure consistency. In the construction industry, particularly road building, aggregates must be optimised for maximum strength and durability.  Continue reading Particle Size Distribution Analysis – An Overview

DelsaMax nanoparticle analysers from Meritics

The Beckman Coulter DelsaMax series of Nanoparticle analysers, brought to you by Meritics, are among the fastest and most user-friendly nanoparticle analysers available.

Optimised for biological materials and similar precious and vulnerable particles, the DelsaMax range is ideal if you want to measure zeta potential and size characterisation of proteins, carbon nanotube suspensions and emulsions.delsamax There are three members of the DelsaMax family, the DelsaMax PRO, the DelsaMax CORE and the DelsaMax ASSIST, each instrument configured for different tasks depending on your requirements.

Continue reading DelsaMax nanoparticle analysers from Meritics

Smart window developed to block out heat

A smart window has been developed to block out the heat when the temperature rises, meaning air conditioning could become a thing of the past. Continue reading Smart window developed to block out heat

Just Press a Button

In my last post I tried to give a sense of just how easy and convenient Beckman Coulter’s DelsaMax dynamic light scattering instruments are to use. Today I would like to add to that by describing – in very simple terms – what the user actually does to obtain particle size and zeta potential information from these analysers. Continue reading Just Press a Button

Nanoparticle Analysis Made Simple

In recent months the Dynamic Light Scattering website has gone into considerable detail on the principles by which this method gives us information on particle size. I would now like to simplify things and talk about what the Beckman Coulter DelsaMax family of dynamic light scattering instruments actually does to make life easier for those involved in particle characterisation. Continue reading Nanoparticle Analysis Made Simple

Dynamic Light Scattering Recap Part 3

In the last instalment of a three-part recap on how dynamic light scattering works, I would like to talk about the actual collection and processing of particle size data. Continue reading Dynamic Light Scattering Recap Part 3

Dynamic Light Scattering Recap Part 2

Stokes-Einstein equation

Stokes-Einstein equation

Last month we recapped on the basic principles of dynamic light scattering. This month I’d like to add some further detail. Continue reading Dynamic Light Scattering Recap Part 2

Dynamic Light Scattering Recap

Over the last couple of years we have looked deeply and widely into the subject of dynamic light scattering. I think it’s worth stopping, from time to time, to look again at the basic principles and restate them – perhaps in different words – to make sure they are understood. Continue reading Dynamic Light Scattering Recap

Cytometry

Flow cytometry - Beckman Coulter

Having written a lot about Beckman Coulter’s contribution to the field of dynamic light scattering, a recent news item has reminded me that there is a lot more to the company than the manufacture of particle characterisation instruments. The report concerned the acquisition of a specialist developer and maker of cytometers. Continue reading Cytometry