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Russian Journal of Physical Chemistry A

, Volume 93, Issue 13, pp 2765–2770 | Cite as

Insight into the Interaction between Selected Antitumor Gold(III) Complexes and Citrate Stabilized Gold Nanoparticles

  • A. M. BondžićEmail author
  • A. V. Vujačić Nikezić
  • U. Klekotka
  • M. M. Marković
  • V. V. Vodnik
  • B. Kalska
  • V. M. VasićEmail author
PHYSICAL CHEMISTRY OF NANOCLUSTERS AND NANOMATERIALS
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Abstract

This paper presents the study of the interaction between gold nanoparticles (AuNPs) and antitumor gold complexes, [Au(OH)2(bipy)][PF6], [Au(CH3COO)2(pydmb-H)], and [Au(bipydmb-H)(OH)][PF6], in order to estimate the possibility for metal complex tracking in cells using nanospectroscopy approach. Decrease of intensity of the surface plasmon absorption band at 524 nm and the appearance of a new broad band at ∼640 nm, followed by their red shift were observed in the presence of the complexes. TEM images showed that the average size and shape of AuNPs did not change after the addition of gold complexes. DLS and zeta potential measurements pointed out to the metal complex adsorption on the surface of AuNPs followed by flocculation process. In addition, kinetic studies indicated strong bond formation between these complexes and AuNPs. Accordingly, AuNPs/complex conjugates have the potential to be applied for the tracking of these metal complexes in the cells using nanospectroscopy approach.

Keywords:

antitumor gold complexes AuNPs TEM DLS zeta potential 

Notes

ACKNOWLEDGMENTS

Authors would like to thank professor Luigi Messori from the Department of Chemistry, University of Florence for giving the gold complexes used in this work.

This work was supported by the Ministry for Science of the Republic of Serbia (grant no. 172023) and COST action MP1302 “Nanospectroscopy.” The work was partially financed by EU founds via project with contract number POPW.01.03.00-20-034/09-00.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. M. Bondžić
    • 1
    Email author
  • A. V. Vujačić Nikezić
    • 1
  • U. Klekotka
    • 2
  • M. M. Marković
    • 1
  • V. V. Vodnik
    • 1
  • B. Kalska
    • 2
  • V. M. Vasić
    • 1
    Email author
  1. 1.Vinča Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
  2. 2.Institute of Chemistry, University of BialystokBialystokPoland

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