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Nanoparticles

The small size of nanoparticles is of utmost importance in order for them to maintain their unique optical, electronic, thermal and chemical properties. Measuring their size is therefore critical to understanding these nano-scale materials.

Zeta potential is another important parameter that is related to nanoparticle stability or aggregation in a dispersion, and can have significant implications on product performance.

Light scattering, especially dynamic light scattering, and electrophoretic light scattering are now the standard techniques for measuring the size and zeta potential of dispersed nanoparticles. Two new techniques, Nanoparticle Tracking Analysis (NTA), and also Resonant Mass Measurement (RMM) can also be used for sizing nanoparticles as well as counting the number of particles present in a sample, and both are especially suited to polydisperse samples. Nanoparticle Tracking Analysis (NTA) is provided via the Malvern NanoSight range of instruments, and RMM is available via Archimedes.

Malvern offers a range of fast, reliable and simple to use systems that incorporate light scattering technology, resonant mass measurement or nanoparticle tracking analysis (NTA), which are used to:

  • Determine nanoparticle size.
  • Detect the formation of aggregates in a sample containing nanoparticles.
  • Measure zeta potential for an indication of nanoparticle stability.
  • Count the number of nanoparticles present in a sample.
 
 

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NanoSight NS500 Zeta Potential Analysis Technical Note (English)

NanoSight NS500 Zeta Potential Analysis Flow Chart for Use with NTA Software Versions 3.1 and 3.2



Enhancing NTA accuracy and repeatability with flow mode measurements Technical Note (English)

The standard measurement mode for Malvern’s NanoSight Nanoparticle Tracking Analysis (NTA) technique takes place with the sample static. In that case, the only motion in the analysis is the Brownian motion of the particles. Since NTA is a single-part...



Monitoring Microfiltration Processes for Water Treatment Application Note (English)

With the increasing demands on water supplies and tighter regulations, much research is being done on water treatment processes. Subjects of study include improving processes to allow treated water to be used in secondary applications, optimizing fil...



Metal colloids - their preparation, application and characterization Webinar - Recorded (English)

Metal colloids represent a very interesting system known since Roman times (the Lycurgus Cup). We'll look at the preparation of these systems looking mainly at gold, silver, and the platinum group metals. All these find extensive application in in...

Product:
NanoSight range,Zetasizer range
Date recorded:
February 18 2016
Language:
English


NanoSight NTA3.2 Software Scripting Technical Note (English)

All Nanoparticle Tracking Analysis (NTA) measurements are controlled via Standard Operating Procedures (SOPs) from software scripts. A number of commonly used scripts are supplied with the instrument and here we outline all the available NTA3.2 softw...


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