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Abstract

Mesoporous silica nanoparticles (MSNs) are used as drug delivery materials because of their outstanding features such as large surface area, easy synthesis and high biocompability. In this study, inorganic mesoporous nanosilica material, MCM-41, was synthesized by sol-gel hydrothermal method using tetraethyl orthosilicate precursor (TEOS). The material structure and composition were analyzed by X-ray power diffraction (P-XRD), N2 adsorption isotherm, thermalgravimetric analysis (TGA) and Fourier-transform infrared spectroscopy (FT-IR). Its morphology was examined by scanning electron microscopy (SEM) and transmission electron microscope (TEM). The results showed that synthesized MCM-41 has a spherical shape, homogeneous with an average size of 100 nm. The specific surface area is 845 m2 g􀀀1, the pore size is approximately 35 Å. It has high thermal stability until 800oC. FT-IR result showed the formation of the Si-O-Si bond in the structure. The adenosine loading capacity of MCM-41 was investigated based on the influence of loading factors including adenosine concentration, time, solvent, and temperature. The kinetics and thermodynamics of the adsorption processes were also studied. The adenosine loading ability on MCM-41 is significant high, approximately 1699 mg g􀀀1. The kinetic and thermodynamic results showed that the drug adsorbed of MCM-41 occurred with fast rate and spontaneously. Moreover, the release profile of adenosine proved that the drug release process occurred quickly which is suitable for application in acute disease treatment.



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Issue: Vol 5 No 1 (2021): Under Publishing
Page No.: Online first
Published: Dec 27, 2020
Section: Original Research
DOI: https://doi.org/10.32508/stdjns.v5i1.933

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Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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 How to Cite
Mai, D., Danh, L., Dang, H., Nguyen, H., Ta, H., Doan, T., Le, T., & Phan, T. (2020). Study on adenosine loading capacity of porous nanosilica for application in drug delivery. Science and Technology Development Journal - Natural Sciences, 5(1), Online first. https://doi.org/https://doi.org/10.32508/stdjns.v5i1.933

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