Journal
APPLIED SURFACE SCIENCE
Volume 551, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2021.149334
Keywords
Detonation nanodiamonds; Modification; Corticosteroids; Delivery system; Prolonged release
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Funding
- Daewha Alloytech Co., Ltd (Republic of Korea)
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The study investigated the applicability of detonation nanodiamonds as a carrier for corticosteroids delivery, demonstrating a sustained release effect of the adsorbed drugs.
The application of detonation nanodiamonds (DNDs) in delivery systems has been demonstrated many times for a variety of substances, including anti-inflammatory drugs, antibiotics, antineoplastic agents, vitamins etc. The applicability of detonation nanodiamonds as a carrier for delivery of corticosteroids is investigated in this study. Commercial DNDs were modified to obtain particles with high colloidal stability in aqueous suspensions. Physical adsorption was then used to conjugate the DNDs with methylprednisolone sodium succinate and dexamethasone sodium phosphate. The experimental adsorption isotherms were fit with Langmuir and Freundlich adsorption models. The results of in vitro release study demonstrated an explicit prolonged effect of DNDs, due to which a sustained release of the adsorbed drugs was provided.
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