Abstract
Curcumin, a polyphenolic compound, has gained considerable attention in recent years as a therapeutic agent due to its ability to act at the cellular level and modulate multiple signaling pathways. However, its poor solubility, low bioavailability, and rapid metabolism limit its clinical applications for cancer treatment. The aim of the present study was to develop a novel hybrid nanocarrier system comprising curcumin-loaded silver–amine functionalized silica nanoparticles (CUR@Ag-AFS) for potential anticancer applications. Monodisperse silica nanoparticles were synthesized using a modified sol–gel method, functionalized with amine groups using 3-aminopropyltriethoxysilane (APTES), and decorated with silver ions to form a stable hybrid matrix. Curcumin extracted from Curcuma longa was effectively encapsulated within the nanocarrier, achieving a high encapsulation efficiency (77%) and drug loading capacity (25%). FTIR, XRD, SEM–EDS, TGA, DSC, and zeta potential analyses confirmed successful surface modification, uniform drug incorporation, and improved stability. In vitro release studies demonstrated sustained and pH-responsive release behaviour, with maximum cumulative release (91.6%) under acidic conditions (pH 5.5), indicating suitability for tumor-targeted delivery. Furthermore, the CUR@Ag-AFS system exhibited enhanced dose-dependent cytotoxicity against MCF-7 cancer cells compared to pure curcumin, due to the combined therapeutic actions of curcumin and silver species. These findings highlight the potential of the CUR@Ag-AFS hybrid system for sustained, pH-sensitive curcumin delivery, offering multifunctional therapeutic applications in cancer rehabilitation and disability management.
Data availability
All data generated or analysed during this study are included in this published article.
Abbreviations
- SiNPs:
-
Silica nanoparticles
- AFS:
-
Amine-functionalized silica
- Ag-AFS:
-
Silver-amine functionalized silica
- CUR:
-
Curcumin
- CUR@Ag-AFS:
-
Curcumin loaded silver–amine functionalized silica nanoparticles
- CTAB:
-
Cetyltrimethylammonium bromide
- TEOS:
-
Tetraethyl orthosilicate
- APTES:
-
3-aminopropyltriethoxysilane
- EE:
-
Encapsulation efficiency
- DLE:
-
Drug loading efficiency
- UV–Vis:
-
Ultraviolet–visible spectroscopy
- FTIR:
-
Fourier transform infrared spectroscopy
- XRD:
-
X-ray diffraction
- TGA:
-
Thermogravimetric analysis
- DSC:
-
Differential scanning calorimetry
- SEM:
-
Scanning electron microscopy
- EDS:
-
Energy-dispersive X-ray spectroscopy
- PBS:
-
Phosphate-buffered saline
- DMEM:
-
Dulbecco’s modified eagle medium
- FBS:
-
Fetal bovine serum
- HEK-293:
-
Human embryonic kidney 293 cells
- ROS:
-
Reactive oxygen species
- DOX:
-
Doxorubicin
- MTT:
-
3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
- DMSO:
-
Dimethyl sulfoxide
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Funding
The authors extend their appreciation to the King Salman Center for Disability Research for funding this work through Research Group No. *KSRG-2024-152..
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Syed Salman Shafqat: Writing – review & editing, Supervision, Conceptualization. Hamza Wakeel: Methodology. Muhammad Zubair: Formal analysis, Validation. Syeda Amna Masood: Investigation, Methodology. Saba Rashid: Writing – review & editing. Rawaiz Khan: Conceptualization, Funding acquisition, Methodology. Ali Bahadar: Investigation, Resources, Funding acquisition. Muhammad Ashfaq: Data curation. Amir Azam Khan: Supervision, Conceptualization.
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Shafqat, S.S., Wakeel, M., Zubair, M. et al. Anticancer activity of curcumin loaded hybrid system of silver-amine functionalized silica nanoparticles. Sci Rep (2026). https://doi.org/10.1038/s41598-026-37829-9
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DOI: https://doi.org/10.1038/s41598-026-37829-9