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Taghavi, Sepideh, Shahnani, Mostafa, Rafati, Hasan. (1402). Preparation and characterization of Tamoxifen loaded silica and NH2 functionalized mesoporous silica nanoparticles as delivery systems against MCF-7 breast cancer cells. , 26(11), 1334-1341. doi: 10.22038/ijbms.2023.70152.15254
Sepideh Taghavi; Mostafa Shahnani; Hasan Rafati. "Preparation and characterization of Tamoxifen loaded silica and NH2 functionalized mesoporous silica nanoparticles as delivery systems against MCF-7 breast cancer cells". , 26, 11, 1402, 1334-1341. doi: 10.22038/ijbms.2023.70152.15254
Taghavi, Sepideh, Shahnani, Mostafa, Rafati, Hasan. (1402). 'Preparation and characterization of Tamoxifen loaded silica and NH2 functionalized mesoporous silica nanoparticles as delivery systems against MCF-7 breast cancer cells', , 26(11), pp. 1334-1341. doi: 10.22038/ijbms.2023.70152.15254
Taghavi, Sepideh, Shahnani, Mostafa, Rafati, Hasan. Preparation and characterization of Tamoxifen loaded silica and NH2 functionalized mesoporous silica nanoparticles as delivery systems against MCF-7 breast cancer cells. , 1402; 26(11): 1334-1341. doi: 10.22038/ijbms.2023.70152.15254

Preparation and characterization of Tamoxifen loaded silica and NH2 functionalized mesoporous silica nanoparticles as delivery systems against MCF-7 breast cancer cells

Iranian Journal of Basic Medical Sciences
مقاله 11، دوره 26، شماره 11، بهمن 2023، صفحه 1334-1341    اصل مقاله (522.36 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22038/ijbms.2023.70152.15254
نویسندگان
Sepideh Taghavi1؛ Mostafa Shahnani1؛ Hasan Rafati* 2
1Department of Pharmaceutical Engineering, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
2Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
چکیده
Objective(s): Controlled drug delivery using nanotechnology enhances drug targeting at the site of interest and prevents drug dispersal throughout the body. This study focused on loading a poorly water-soluble drug Tamoxifen (TMX) into silica nanoparticles (SNPs) and amine-functionalized mesoporous silica nanoparticles (NH2-SBA-15). 
Materials and Methods: SNPs were prepared according to the Stöber method and functionalized with an amine group using 3-aminopropyl triethoxysilane (APTES) through a one-pot synthesis method to produce amine-functionalized mesoporous silica nanoparticles (NH2-SBA-15). Characterization of both nanoparticles was performed using FT-IR, FE-SEM, CHN analysis, porosity tests (BET), and dynamic light scattering (DLS). 
Results: The results showed an average particle size of 103.7 nm for SNPs and 225.9 nm for NH2-SBA-15. Based on the BET results, the pore size of NH2-SBA-15 was about 5.4 nm. In both silica nanoparticles, drug release at pH=5.7 was greater than that of pH=7.4. However, Tamoxifen-loaded NH2-SBA-15 (TMX@NH2-SBA-15) indicated the highest drug release in the acidic medium among TMX-loaded SNPs (TMX@SNPs), perhaps due to the high columbic repulsion in the functionalized NH2-SBA-15 nanoparticles. Regarding cytotoxicity results against MCF-7 breast cancer cell lines, both TMX@SNPs and TMX@NH2-SBA-15 nanoparticles exhibited greater cytotoxicity compared to the free TMX as a positive control. Although TMX@SNPs had a small size and high loading capacity, the cytotoxic effects were higher than those of TMX@NH2-SBA-15.
Conclusion: Amine functionalization of SNPs can improve the potential activity of these nanoparticles for target therapy.  
کلیدواژه‌ها
Amine-functionalized mesoporous silica nanoparticles (NH2-SBA-15)؛ Breast cancer؛ Drug delivery؛ MCF-7 cells؛ Silica nanoparticles؛ Tamoxifen
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