Fractal analysis of tissue biocompatible neuroreservoir

T. López, M. Patiño-Ortiz, A. S. Balankin, R. D. González

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Sol-gel nanostructured titania (TiO 2) was functionalized in order to produce a nanomaterial biocompatible with brain tissue. Neuroreservoirs made from titania microtubes have been used to release sodium phenytoin and valproic acid. In vitro and in vivo probes were used to treat the epilepsy disease. Pore space topology and interactions between matrix and drug are the most important phenomena that affect the drug diffusion and liberation kinetics. Accordingly, fractal morphology of nanostructured titania as a function of pH and polarity of the drug added during the gelation reactions was studied. The transmission electronic microscopy (TEM), scanning electronic microscopy (SEM), and N 2 adsorption (BET) were employed to characterize the nanomaterials with maximum amount of air hollows occluded inside a drug. It was found that the clusters and pores in nanostructured titania are characterized by the universal fractal dimensions D chester =1.85±0.05 and D pore = 1.78±0.05. However, the characteristic sizes of particles and pores, the porosity, and the fractal dimension of pore surface (D ps) are dependent on hydrolysis water concentration added during the gelation reaction. So, the matrix hydroxylation permits to control the drug liberation kinetics.

Original languageEnglish
Title of host publicationElectromechanical and Systems Engineering
Pages121-126
Number of pages6
DOIs
StatePublished - 2009
Event5th International Congress of Electromechanical and Systems Engineering - Mexico City, Mexico
Duration: 10 Nov 200814 Nov 2008

Publication series

NameApplied Mechanics and Materials
Volume15
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference5th International Congress of Electromechanical and Systems Engineering
Country/TerritoryMexico
CityMexico City
Period10/11/0814/11/08

Keywords

  • Drug liberation
  • Epilepsy
  • Fractal analysis
  • Nanomaterials
  • Nanomedicine
  • Neuroreservoir

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