Journal
JOURNAL OF MICROENCAPSULATION
Volume 31, Issue 6, Pages 590-599Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/02652048.2014.898707
Keywords
Biocompatibility; dynamic light scattering; FTIR; solid lipid nanoparticles; X-ray powder diffractometry; zeta potential
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Context: Solid lipid nanoparticles (SLNs) can efficiently and efficaciously incorporate anti-cancer agents. Objective: To prepare and characterise tamoxifen (TAM)-loaded SLNs. Materials and methods: Glyceryl monostearate, Tween-80, and trehalose were used in SLNs. SLNs were tested via dynamic light scattering (DLS), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Results: Characterisation studies revealed SLNs of about 540 nm with a negative surface charge and confirmed the entrapment of TAM in the SLNs. The entrapment efficiency was estimated to be 60%. Discussion: The in vitro drug release profile demonstrated a gradual increase followed by a release plateau for several days. A drug concentration-dependent increase in cytotoxic activity was observed when the SLNs were evaluated in cell cultures. Conclusion: Biocompatible and stable lyophilised SLNs were successfully prepared and found to possess properties that may be utilised in an anti-cancer drug delivery system.
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