Preparation, optical characterization and stability of gold nanoparticles by facile methods

Authors

  • V. González Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas
  • B. Kharisov Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas
  • I. Gómez Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas http://orcid.org/0000-0001-6748-7608

DOI:

https://doi.org/10.31349/RevMexFis.65.690

Keywords:

Gold nanoparticles, synthesis, SPR

Abstract

The influence of synthesis method, cycles quantity and sonication time in the gold nanoparticles size and plasmon resonance were analyzed to establish the synthesis with smaller nanoparticle size and higher absorbance. Gold nanoparticles were analyzed by UV-Vis spectrophotometry, dynamic light scattering (DLS) and surface electron microscopy (SEM). The results indicate that the nanoparticles obtained by microwave have bigger size but higher absorption. These nanoparticles were analyzed one year after its synthesis and it was found that the plasmon resonance signal remains almost unchanged. Finally, two equation were derived from the analyzes for estimate molar extinction coefficient, molar concentration and nanoparticle average diameter.

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Published

2019-10-31

How to Cite

[1]
V. González, B. Kharisov, and I. Gómez, “Preparation, optical characterization and stability of gold nanoparticles by facile methods”, Rev. Mex. Fís., vol. 65, no. 6 Nov-Dec, pp. 690–698, Oct. 2019.

Issue

Vol. 65 No. 6 Nov-Dec (2019): Revista Mexicana de Física

Section

16 Solid State Physics

License

Authors retain copyright and grant the Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.