System for characterization of colloids by dynamic light scattering within a size range of 0.3 nm to 10 µm. Suitable for material systems with concentrations from ppm up to 40% vol., depending on substance type. Minimum is 1 droplet.

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

The applied heterodyne 180° back scattering principle of the Nanotrac® is characterised by its high selectivity in the nano-range and is therefore also suitable for samples with broad size distribution. Furthermore, the resolution is impressing. Highly concentrated samples are measured without interfering multiple scattering.

The applied Nanotrac® back scattering in the NANO-flex® II is designed as a flexible measuring probe with 8 mm ø. Thus, it can be used in many ways, even in-situ  and in the measuring cylinder of the Stabino® II.


NANO-flex® Brochure

The laser is focused to the sample via an optical fiber and a sapphire window. The window reflects a part of the incoming laser light. Both, laser reflection and scattered light interfere at the detector diode. Due to the excellent signal/noise ratio, there is no need for an expensive detection system.

Benefits of 180° DLS:

  • Shortest light path in the sample (<0.3 µm) implying
    o no multiple light scattering
    o samples from transparent to opaque
  • up to 40% v/v from 0.8 (LOQ) to 10,000  nm
  • size result does not change over decades of sample concentration
  • high dynamic range and high resolution in ONE measurement

Inserted in a reactor or in the sample circuit of a milling system the probe delivers in-situ size information. When the probe is kept by a roboter arm, multiple sampling is possible. Customized solutions may be offered on demand.


DLS applications with the NANO-flex® II 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 the size. The liquid medium of the particles can be of organic or aqueous nature. The critical coagulation point of a dispersion can be determined by measurement of size and potential with the Stabino® II. For this purpose, the NANO-flex® II size sensor is dipped into the Stabino® II measuring cylinder.

Sales inquiry

Your contact data
Fields with * are mandatory!


Karen Ven, Bram Vanspauwen, Elena Pérez-Ruiz, Karen Leir, Deborah Decrop, Hans Gerstmans, Dragana Spasic, and Jeroen Lammertyn. Target Confinement in Small Reaction Volumes Using Microfluidic Technologies: A Smart Approach for Single-Entity Detection and Analysis. ACS Sens., 2018, 3 (2), pp 264–284, DOI: 10.1021/acssensors.7b00873, Publication Date (Web): January 24, 2018 Abstract


Thomas Eiselt, Jan B Preinfalk, Karsten Bittkau, Guillaume Gomard, Thomas Hanemann and Uli Lemmer. Inkjet-printed internal light extraction layers for organic light emitting diodes. Published 9 February 2018 • © 2018 IOP Publishing Ltd, Flexible and Printed Electronics, Volume 3, Number 1 Abstract


Timothy Holt, James Masi. Preparation, Properties, and devices of Nano-Particulate Conductive and Dielectric Oxides via Chemical Co-precipitation.2016 ASEE NE Conference, April 28-30, 2016. University of Rhode Island, Kingston, RI. Reviewed Paper. Fulltext


Christian Hübner , Christian Fettkenhauer, Kevin Voges and Doru C. Lupascu. Agglomeration-Free Preparation of Modified Silica Nanoparticles for Emulsion Polymerization—A Well Scalable Process. Langmuir, 2018, 34 (1), pp 376–383, DOI: 10.1021/acs.langmuir.7b03753, Publication Date (Web): December 14, 2017 Abstract


Özlenen Erdem İşmal, Roshan Paul. Composite textiles in high-performance apparel. High-Performance Apparel Materials, Development, and Applications, A volume in Woodhead Publishing Series in Textiles, 2018, Pages 377–42 Abstract


NS Msinjili, W Schmidt, A Rogge, HC Kühne Performance of rice husk ash blended cementitious systems with added superplasticizers, Cement and Concrete Composites, Volume 83, October 2017, Pages 202-208 Abstract


Nsesheye Susan Msinjili, Wolfram Schmidt, Andreas Rogge, Hans-Carsten Kühne Performance of rice husk ash blended cementitious systems with added superplasticizers. Cement and Concrete Composites Volume 83, October 2017, Pages 202-208Abstract


Anastasiia Solodovnyk, Daniel Riedel, Benjamin Lipovšek, Andres Osvet, Jessica Gast, Edda Stern, Karen Forberich, Miroslaw Batentschuk, Janez Krč, Marko Topič, and Christoph J. Brabec Determination of the complex refractive index of powder phosphors. Optical Materials Express Vol. 7, Issue 8, pp. 2943-2954 (2017)


Nazlı Akçamlı, Duygu Ağaoğulları ,Özge Balcı, M. Lütfi Öveçoğlu, İsmail Duman Synthesis of bulk nanocrystalline HfB2 from HfCl4–NaBH4–Mg ternary system. Journal of Materials Science November 2017, Volume 52, Issue 21, pp 12689–12705Abstract


Fernando Arteaga-Cardona, Esmeralda Santillán-Urquiza, Umapada Pal, M.E. Méndoza-Álvarez, Cristina Torres-Duarte, Gary N.Cherr, Patricia de la Presa, Miguel Á. Méndez-Rojas Unusual variation of blocking temperature in bi-magnetic nanoparticles. Journal of Magnetism and Magnetic Materials Volume 441, 1 November 2017, Pages 417-423Abstract


Balcı, Ö , Akçamlı, N , Ağaoğulları, D , Öveçoğlu, M , Duman, İ . "Otoklavda sentezlenen ZrB2-ZrO2 tozlarının farklı tekniklerle sinterlenmesi ve yığın yapıların mikroyapısal ve bazı mekanik özelliklerinin incelenmesi". Bor Dergisi 2 (2017): 1-10Abstract


Hossein Hazrati, Mohammad Jamal Saharkhiz, Mehrdad Niakousari, Mahmoodrea Moein Natural herbicide activity of Satureja hortensis L. essential oil nanoemulsion on the seed germination and morphophysiological features of two important weed species. Ecotoxicology and Environmental Safety Volume 142, August 2017, Pages 423–430. Abstract


STEINBORN, Gabriele; GEMEINERT, Marion; SCHMIDT, Wolfram. Vergleich verschiedener Messverfahren zur Partikelgrößenanalyse am Beispiel von nanodispersem ZrO2‐Pulver. Chemie Ingenieur Technik, 2016.Abstract


PINTO, Moisés L., et al. Storage and delivery of nitric oxide by microporous titanosilicate ETS-10 and Al and Ga substituted analogues. Microporous and Mesoporous Materials, 2016, 229. Jg., S. 83-89.Abstract


SAGIRLI, FZ Engin; KAYALI, E. S.; SARAC, A. S. Electrochemical Impedance Spectroscopic Study on Polypyrrole/Barium Titanate/Poly (acrylonitrile-co-methylacrylate) Nanoparticles. Journal of The Electrochemical Society, 2016, 163. Jg., Nr. 3, S. H205-H212.Abstract


JAHANGIRI, Hadi; ÖVEÇOĞLU, M. Lütfi. Determination of crystallite size, strain and solubility in mechanically alloyed W-xTi (x= 0.5, 1.0, 4.0 and 10.0 wt%) powder alloys. Materials Letters, 2016, 178. Jg., S. 193-196.Abstract


SAGIRLI, FZ Engin, et al. In-situ preparation and characterization of pyrrole and tert-butyl 1-pyrrole-carboxylate on barium titanate/poly (acrylonitrile-co-methylacrylate) nanoparticles. Reactive and Functional Polymers, 2016, 100. Jg., S. 1-11.Abstract


AKÇAMLI, Nazlı, et al. Synthesis of triclinic and hexagonal SmBO 3 powders by mechanically activated annealing of Sm 2 O 3 and B 2 O 3 blends. Ceramics International, 2016, 42. Jg., Nr. 8, S. 10045-10057.Abstract


AKÇAMLI, Nazlı, et al. Mechanical activation-assisted autoclave processing and sintering of HfB 2-HfO 2 ceramic powders. Ceramics International, 2016.Abstract


AĞAOĞULLARI, Duygu, et al. Preparation of LaB 6 Powders via Calciothermic Reduction using Mechanochemistry and Acid Leaching. KONA Powder and Particle Journal, 2016, Nr. 0.Abstract


WITTMAR, Alexandra, et al. Routes towards catalytically active TiO 2 doped porous cellulose. RSC Advances, 2015, 5. Jg., Nr. 45, S. 35866-35873.Abstract


WITTMAR, Alexandra; VORAT, Dimitri; ULBRICHT, Mathias. Two step and one step preparation of porous nanocomposite cellulose membranes doped with TiO 2. RSC Advances, 2015, 5. Jg., Nr. 107, S. 88070-88078.Abstract


PALMQVIST, N. G. M., et al. Nano titania aided clustering and adhesion of beneficial bacteria to plant roots to enhance crop growth and stress management. Scientific reports, 2015, 5. Jg.PubMed


KHALESI, Mohammadreza, et al. Improvement of the retention of ocimene in water phase using Class II hydrophobin HFBII. Flavour and Fragrance Journal, 2015, 30. Jg., Nr. 6, S. 451-458.Abstract


AĞAOĞULLARI, Duygu, et al. Synthesis of bulk nanocrystalline samarium hexaboride. Journal of the European Ceramic Society, 2015, 35. Jg., Nr. 15, S. 4121-4136.Abstract


NEMATI, Ahlam, et al. Hydrothermal Synthesis and Size Control of Fe3O4 Nanoparticles in the Presence of 2, 2’, 2”, 2”?-(ethane-1, 2-diylbis (azanetriyl)) tetraacetohydrazide. Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 2014, 44. Jg., Nr. 8, S. 1161-1165. Abstract


SHOKRIBOUSJEIN, Zahra, et al. Effect of a magnetic field on dispersion of a hop extract and the influence on gushing of beer. Journal of Food Engineering, 2014.Abstract


Wang, Xu, Reinhard Niessner, and Dietmar Knopp. "Magnetic Bead-Based Colorimetric Immunoassay for Aflatoxin B1 Using Gold Nanoparticles." Sensors 14.11 (2014): 21535-21548. Abstract


WITTMAR, Alexandra, et al. Stable zinc oxide nanoparticle dispersions in ionic liquids. Journal of Nanoparticle Research, 2014, 16. Jg., Nr. 5, S. -14.Abstract


POUDEH, Leila Haghighi. Moo3, Cr2o3 Ve Wo3 Tozlarının Yüksek Enerjili Öğütme Ve Püskürtmeli Kurutma Karakteristikleri. 2014. Doktorarbeit. Fen Bilimleri Enstitüsü.Abstract


YAKOVLEV, A. V.; GOLUBEVA, O. Yu. Synthesis Optimisation of Lysozyme Monolayer-Coated Silver Nanoparticles in Aqueous Solution. Journal of Nanomaterials, 2014, 2014. Jg. Fulltext


FROST, Sven; ULBRICHT, Mathias. Thermoresponsive ultrafiltration membranes for the switchable permeation and fractionation of nanoparticles. Journal of Membrane Science, 2013, 448. Jg., S. 1-11. Abstract


WITTMAR, Alexandra, et al. Influence of the cation alkyl chain length of imidazolium-based room temperature ionic liquids on the dispersibility of TiO2 nanopowders. Journal of nanoparticle research, 2013, 15. Jg., Nr. 3, S. 1-12.Abstract


BEHNAM, Dariush. Micellarly integrated oxidation protection for natural dyes. U.S. Patent Application Nr. 13/131,985, 2009.Fulltext


WINKELER, Mark; GOETTER, Ronald W. Nanomaterials in liquid electrical insulation for use in inverter duty applications. In: 2009 IEEE Electrical Insulation Conference. IEEE, 2009. S. 401-404.Abstract