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1.
Phys Chem Chem Phys ; 17(39): 26084-92, 2015 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-26377043

RESUMO

The specific features of structural self-organization of C60 fullerene and antitumor drug cisplatin (Cis) in physiological solution (0.9% NaCl) have been investigated by means of small-angle neutron scattering, scanning electron and atomic force microscopies, as well as isothermal titration calorimetry, dynamic light scattering and UV-Vis spectroscopy. The formation of C60 + Cis complexes, has been reported, unveiling the mechanism of medico-biological synergy observed during administration of the mixture of these drugs.


Assuntos
Antineoplásicos/química , Cisplatino/química , Fulerenos/química , Calorimetria , Luz , Microscopia de Força Atômica , Modelos Moleculares , Difração de Nêutrons , Espalhamento de Radiação , Espalhamento a Baixo Ângulo , Cloreto de Sódio/química , Soluções
2.
Phys Chem Chem Phys ; 16(42): 23164-72, 2014 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-25251969

RESUMO

The aim of this paper was to provide the physico-chemical characterization of a key process leading to amplification of the antitumor effect of antibiotic Doxorubicin (Dox) in vivo and in vitro and occurring at the molecular level through complexation with C60 fullerene. A wide range of physico-chemical tools was used such as UV/Vis and NMR spectroscopies, atomic force microscopy, isothermal titration calorimetry and zeta-potential methods. The unusual thermodynamic behavior of the complexation process was reported, featuring unexpected and, to a certain extent, contradictory experimental observations. The explanation of the obtained results was proposed resulting in creation of a general view on aromatic drug binding with C60 fullerene. Based on these results some important practical outcomes for anticancer therapy were formulated.


Assuntos
Antibacterianos/química , Doxorrubicina/química , Fulerenos/química , Estrutura Molecular
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