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[CEPT] Studies of nanoparticles size distribution

Aleksandra E. Kędzierska 1,2,  Jacek Wojnarowicz 1,  Agnieszka Opalińska 1,2,  Tadeusz Chudoba 1,  Witold Łojkowski 1

1. Institute of High Pressure Physics, Polish Academy of Sciences (UNIPRESS), Sokołowska 29/37, Warsaw 01-142, Poland
2. Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska 141, Warsaw 02-507, Poland

Abstract

Research at the Laboratory of Nanostructures for Photonics and Nanomedicine, IHPP PAS team is focused on synthesis and characterization of nanomaterials and their possible applications in medicine, optics, cosmetics and other industrial fields.

One of the most important issues of nanomaterials characterization is size of their agglomerates or particles in different dispersants. One of use method is Nano Tracking Analysis (NTA), from NANOSIGHT. Principle of measuring is based on detection and live visualization of a single nanoparticle diffusion in colloidal suspension. Measured particle size range from 10 nm to 2 µm.

Other, also popular technique is Dynamic Light Scattering (DLS). In our Laboratory, we use Zetasizer NanoSeries, from MALVERN company. This measuring technique calculate size of particle from changing intensity of laser light, which is scattered at different intensities by particle movement (Brownian motions). Measured particle size range from 1 nm to 10 µm.

Advantages of possibility to measure particles/agglomerates distribution with both of methods and use of standardized procedures (PN/EN ISO 17025) are dipper and better characterization of colloidal suspensions, with focus on their polydispersity, resulting in reliability of the result.



 

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Presentation: Poster at Nano and Advanced Materials Workshop and Fair, by Aleksandra E. Kędzierska
See On-line Journal of Nano and Advanced Materials Workshop and Fair

Submitted: 2013-06-04 07:56
Revised:   2013-09-10 12:24