Over the past few decades, severe Vitamin D3 (VD3) deficiency has principally remained the most common nutritional issue worldwide. In fact, insufficient intake of regular dosages from VD3 appeared to cause loss of bone density and osteoporosis. Herein, we developed an innovative technique to fabricate new class of mixed starch nanomaterials as effective carriers for VD3. The starch nanomaterials were fabricated by ultrasonication methods at different temperature levels (i.e., 20, 40, and 80 °C), ultrasonication time (i.e., 20, 40, and 60 min), and initial concentration of VD3 used during the synthesis (i.e., 10, 20, and 30 mg/L). Under the aforementioned conditions, the synthesis process was statistically investigated by using the response surface methodology (RSM). Then, the nanomaterial generating maximum loading of VD3 were then fully characterized by set of analytical instruments, such as FTIR, AFM, and DLS. After that, the interaction mechanism of the VD3 loaded over the nanomaterial surface was explored by fitting the equilibrium adsorptive data with well-kown isotherm models such as Langmuir, Freundlich, Toth, Sips, and Redlich-Peterson. Furthermore, the VD3 release performance of the optimized nanomaterials, compared with the physically mixed starch-VD3 was tested on a phosphate buffer solution at pH ∼7.4, mimicking the human bloodstream condition. Our results showed successful production and optimization of VD3=grafted nanomaterials that tend to own high level of stability and size range of 60–80 nm. From the batch adsorptive experiments, our equilibrium data fitted well with Langmuir, confirming the monolayer adsorption phenomena. To the best of our knowledge, loading VD3 over the mixed starch nanoparticles allowed for diffusionally controlled release performance compared to the direct administration of VD3.
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