Journal of Cluster Science

, Volume 29, Issue 6, pp 1081–1088 | Cite as

Study of Aggregation of Gold Nanoparticles in Chitosan

  • Galo Cárdenas-TriviñoEmail author
  • Christian Cruzat-Contreras
Original Paper


In this work it is reported the synthesis of gold nanoparticles supported in situ in chitosan by solvated metal atom dispersion technique in order to study the inclusion of Au nanoparticles in the biopolymer matrix. To study their aggregation along time and compare with the synthesis of Au/2-propanol colloid by chemical liquid deposition technique. Studies of Au nanoparticles aggregation along time, supported nanoparticles and colloidal nanoparticles morphology were also carried out. The characterization of Au nanoparticles was performed by transmission electron microscopy, field-emission and scanning electron microscopy, infrared spectroscopy, X-ray diffraction, light scattering and ultraviolet–visible spectroscopy. Metal colloid showed fractal agglomeration type and delay time after the synthesis, the agglomeration size increased to flocculate. Au nanoparticles supported in chitosan showed the same shape as colloids and fractal aggregation was mostly distributed on the matrix.


Nanostructures Polymer Transmission electron microscopy (TEM) Colloid agglomeration Supported nanoparticles 



This work was supported by FONDECYT 1080704 and 1140025. C. Cruzat-Contreras acknowledge Consejo Nacional de Ciencia y Tecnología de Chile (CONICYT) for scholarship grants.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Galo Cárdenas-Triviño
    • 1
    Email author
  • Christian Cruzat-Contreras
    • 2
  1. 1.Facultad de Ingeniería, DIMAD, Centro de Biomateriales y NanotecnologíaUniversidad del Bío-BíoConcepciónChile
  2. 2.CEDIA-ProyectosUniversidad de CuencaCuencaEcuador

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