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Asymmetrical Flow Field-Flow Fractionation for Sizing of Gold Nanoparticles in Suspension
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Field flow fractionation techniques to explore the "nano-world".

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  • 1Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy. catia.contado@unife.it.

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Field flow fractionation (FFF) is a powerful technique for characterizing nanomaterials, providing crucial information on nanoparticle size and aggregation. This review highlights FFF

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Area of Science:

  • Nanomaterial characterization
  • Analytical chemistry
  • Separation science

Background:

  • Field flow fractionation (FFF) is essential for analyzing nanomaterials.
  • Characterizing nano-entities and their aggregation states is critical across various scientific fields.
  • Accurate particle-size distributions (PSDs) are vital for understanding material properties.

Purpose of the Study:

  • To review the applications of FFF techniques in food, biomedical, and environmental sectors.
  • To highlight the significance of asymmetrical flow FFF.
  • To compare FFF with alternative nano-object sizing techniques.

Main Methods:

  • Review of recent publications (past 4 years) on FFF applications.
  • Coupling FFF with various detectors for enhanced characterization.
  • Comparative analysis of FFF techniques against other sizing methods.

Main Results:

  • FFF successfully characterizes nanomaterials, determining PSDs and aggregation states.
  • Asymmetrical flow FFF emerges as a prominent technique within the FFF family.
  • The review clarifies the advantages and disadvantages of FFF compared to other sizing methods.

Conclusions:

  • FFF techniques are versatile and effective for nanomaterial analysis.
  • The review provides insights into the current state of FFF, including lesser-known methods and innovative setups.
  • FFF plays a crucial role in advancing research in food, biomedical, and environmental science.