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Preparation and Characterization of Kynurenic Acid Occluded in Sol-Gel Silica and SBA-15 Silica as Release Reservoirs
Joint Authors
López Goerne, T. M.
Ortiz, Emma
Gómez, Esteban
Carrillo-Mora, Paul
Pérez-de la Cruz, Verónica
Novaro, Octavio
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-29
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Kynurenic acid (KYNA) may have important therapeutic effects in neurological disorders; however, its use as a neuroprotective agent is restricted due to its very limited ability to cross the blood brain barrier (BBB).
For this reason, we are looking for new alternatives for KYNA to reach the brain; one of them is using drug delivery systems.
To obtain KYNA release reservoirs, KYNA molecules were hosted in two different silica materials.
The different KYNA-silica materials were characterized by means of several physical techniques.
The spectroscopic studies showed that KYNA molecules remained unchanged once hosted in silica materials.
The surface area values of KYNA-silica samples were substantially lower than those for pure silica materials due to the addition of the drug.
The electronic micrographs showed that the sol-gel KYNA-silica material consisted of aggregates of nanoparticles around 50 nm in size.
On the other hand, the typical SBA-15 hexagonal arrangement was observed, even when hosting KYNA molecules.
KYNA release profiles, carried out during approximately 300 hours, showed a first stage of fast drug release followed by a slow release phase.
The experimental values fitted to the Peppas equation indicate that the release mechanism was controlled by Fickian diffusion.
American Psychological Association (APA)
López Goerne, T. M.& Ortiz, Emma& Gómez, Esteban& Pérez-de la Cruz, Verónica& Carrillo-Mora, Paul& Novaro, Octavio. 2014. Preparation and Characterization of Kynurenic Acid Occluded in Sol-Gel Silica and SBA-15 Silica as Release Reservoirs. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1041605
Modern Language Association (MLA)
López Goerne, T. M.…[et al.]. Preparation and Characterization of Kynurenic Acid Occluded in Sol-Gel Silica and SBA-15 Silica as Release Reservoirs. Journal of Nanomaterials No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1041605
American Medical Association (AMA)
López Goerne, T. M.& Ortiz, Emma& Gómez, Esteban& Pérez-de la Cruz, Verónica& Carrillo-Mora, Paul& Novaro, Octavio. Preparation and Characterization of Kynurenic Acid Occluded in Sol-Gel Silica and SBA-15 Silica as Release Reservoirs. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1041605
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041605