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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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Measuring NIST Standards with NanoSight NTA Technical Note (English)

To ensure that your NanoSight instrument is performing within specification, it is best practice to regularly measure size-traceable standards. The size standard/s used should be similar to the size of the nanoparticles which are typically measured w...



Non-aqueous zeta potential measurements of carbon black powders Application Note (English)

The measurement of the zeta potential of non-aqueous suspensions is challenging as the electrophoretic mobility of the particles is very small. Here we describe how the Zetasizer Nano in combination with a universal dip cell accessory gives excellent...



NTA Concentration Upgrade Webinar - Recorded (English)

An overview of the NTA Concentration Measurement upgrade which gives improved concentration data by further reducing the influence of user settings and allowing improved inter- and intra-laboratory comparison of concentration data.

Product:
NanoSight range,NanoSight NS300,NanoSight NS500
Date recorded:
June 18 2015
Language:
English

Keywords: Nanoparticles English DNA/RNA and oligonucleotides Liposomes and micelles Viruses and vaccines Webinar - Recorded Greenwich Time NanoSight range NanoSight NS500 NanoSight NS300 Exosomes and microvesicles Nanoparticle Tracking Analysis 

NTA Fluorescence mode Webinar - Recorded (English)

This short presentation will give an overview of fluorescence and what you need to think about before you start making measurements of fluorescent samples with NanoSight instruments.

Product:
NanoSight range
Date recorded:
June 18 2015
Language:
English

Keywords: Nanoparticles English DNA/RNA and oligonucleotides Liposomes and micelles Viruses and vaccines Webinar - Recorded Greenwich Time NanoSight range Exosomes and microvesicles Nanoparticle Tracking Analysis Fluorescence detection 

Measuring Zeta Potential - Laser Doppler Electrophoresis Explained Technical Note (English)

This technical note describes the technique used to measure zeta potential and discusses the technology used in the market leading range of Zetasizer instruments, the Nano series.


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