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Antitumor agents bound to silica nanoparticles : potential technology for the remediation of malignant tumors
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2010, v.23 no.6, pp.579-586
https://doi.org/10.5806/AST.2010.23.6.579
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(2010). Antitumor agents bound to silica nanoparticles : potential technology for the remediation of malignant tumors. Analytical Science and Technology, 23(6), 579-586, https://doi.org/10.5806/AST.2010.23.6.579
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Abstract
Commercially widely used antitumor agents such as hydroxy urea, 6-mercaptopurine monohydrate,cytosine arabinoside, cyclophosphamide monohydrate and uracil were reacted with 3-(triethoxysilyl)propyl isocyanate and the product hydrolyzed to give silica nanoparticles bound antitumor agents ranging from 10 nm to micron-sized aggregates. The silyl isocyanate derivative was also reacted neat with water to give hybrid organicsilica nanoparticles containing -CH2-CH2-CH2-NH-COOH or the corresponding decarboxylated propylamine groups depending on solvent and temperature employed. In vitro tests these functionalized silica nanoparticles were effective in the treatment of malignant tumor cells but had little or no effect on normal cells. Malignant human lung, ovarian, melanoma, CNS(Central nervous system) and colon tumor cells were used in this research. The use of silica as a carrier medium in the present research serves as a model material due to its ready functionalization via silation. The proof of concept established by the results suggests that the technique may be applied to other, more biocompatible carrier nanoparticles.
- keywords
- silica nanoparticle, antitumor agents, 3-(triethoxysilyl)propyl isocyanate
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