NANO-flex® II

The NANO-flex® II is a second generation nanoparticle measurement system for particle size distribution with 180° Dynamic Light Scattering (DLS).

The nanoparticle measurement system is designed for the characterisation of dispersions and colloids in the size range of 0.3 nm to 10 µm. Depending on the sample, it is possible to measure very low concentrations (0.01%), up to as high as 40% w/v.

As the exclusive distributor for the UK and Ireland, Analytik is proud to supply the NANO-flex® II from Colloid Metrix. Through Analytik, you’ll have access to our team of experts to help develop your application and get the most out of your investment.

For more information, or to discuss your requirements with a product specialist, please call us on +44 (0)1954 232 776 or email


Particle Size Distributions

The NANO-flex® II 180° DLS system measures size distributions in the range of 0.3 nm to 10 µm.

The unique 180° back scattering principle of the NANO-flex® allows measurement of highly concentrated samples, without interference from the effect of multiple scattering. The heterodyne design of the NANO-flex probe means that some reference light from the laser is reflected straight to the detector to act as a reference and significantly improves the signal-to-noise ratio of the NANO-flex compared to other DLS instruments.

The NANO-flex® is designed as a flexible measuring probe with 8mm diameter. It can therefore be used for a whole range of in-situ particle sizing scenarios, whatever the vessel – be it 96 well plates, beakers, vials or even in the Stabino zeta potential titration beaker for simultaneous size and charge experiments.

Key Benefits:

  • 180° heterodyne dynamic light scattering (very short light path in the sample avoiding multiple light scattering).
  • Measurement in a variable concentration range (0.01 up to 40% w/v) from 0.3nm to 10um particle size.
  • Dip in probe offering online in-situ size measurements
  • Solvent resistance

In-line ApplicationsThe NANO-flex pressure measurement cell

The NANO-flex can also be used for in-line applications, such as during a milling process. The IPAS accessory allows the NANO-flex to take accurate size measurements either during a process flow or in a stirred beaker, by isolating a small sub-volume of sample for measurement, before releasing it back into line, in a completely automated solution.

DLS Applications

DLS applications with the NANO-flex® nanoparticle measurement system module are almost unlimited, provided the viscosity of the sample is in the Newtonian range, a condition for the free Brownian movement in the fluid and for the accurate calculation of size. The liquid medium of the particles can be of organic or aqueous nature.

Interested in the NANO-flex® II? Request a quote or call us on +44(0)1954 232 776 to discuss your requirements.


  • Reagglomeration controlConcentration and size measurement with NANO-flex®
  • Functional end group formulation
  • Core shell design
  • Colloid stability optimisation
  • Dispersing efficiency development
  • Optimum coating applications
  • Clinical biochemistry
  • Water research


NANO-flex Dynamic Light Scattering Instrument

NANO-flex® – Size sensor everywhere



PDF Icon NANO-flex II Information Sheet


  News Icon  Enabling the measurement of particle sizes in stirred colloidal suspensions by embedding dynamic light scattering into an automated probe head

PDF Icon NANO-flex 180° DLS nanoparticle sizing

Technical/Application Notes

PDF Icon Colloidal Alumina: Stability Statement by Zeta Potential doubtful

PDF Icon Synthesis of microgels by precipitation polymerisation in a reactor at varying process conditions

PDF Icon Printer Ink Nanosize Measurement Using NANO-flex® Particle Size Analysers

PDF Icon Controlling critical coagulation of pigments and fillers

News & User Stories

News Icon The European Centre for Dispersion Technology (EZD) uses the Combination of Stabino® & NANO-flex® (DUO-S) for the Characterization of various Dispersions

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