Mahdieh Abbasalizad Farhangi, Leila Nikniaz, Zeinab Nikniaz
ScienceDirect • Dec 2, 2025
Mahlo SJ, Oladipo AO, Ngoepe MP, Tchangoue YAN, Msagati TAM, Lebelo SL, More GK
Mahlo SJ, Oladipo AO, Ngoepe MP et al. (2026). Integrated GC-MS Profiling and Phytosynthesis of MnO2 Nanoparticles Using Moringa oleifera: Assessment of Antioxidant, Cytotoxicity, and Potential In Vitro and In Silico Inhibitory Effects on α-Amylase and α-Glucosidase.. Chemistry & biodiversity.
This laboratory study investigated how Moringa oleifera leaf extract could be used to create special nanoparticles (extremely tiny particles) made of manganese dioxide, and then tested these particles for potential health benefits. Researchers first analyzed the chemical compounds in moringa leaves using advanced techniques, identifying 21 different volatile compounds with known biological activities. They then used the leaf extract to create spherical nanoparticles averaging about 8.3 nanometers in size. The team tested these nanoparticles for several properties: their ability to fight harmful free radicals (antioxidant activity), their safety to human cells, and their potential to help manage blood sugar levels. The results were promising - the nanoparticles showed strong antioxidant effects and were relatively safe to human kidney and liver cells in laboratory tests. Most importantly for diabetes research, the nanoparticles were able to inhibit two key enzymes (α-amylase and α-glucosidase) that break down carbohydrates into sugar, suggesting they might help control blood sugar spikes after meals. Computer modeling studies supported these findings. While this research is still in early laboratory stages and hasn't been tested in humans, it suggests that combining moringa extract with nanotechnology might create new therapeutic options for managing diabetes and oxidative stress.
Population
In vitro study using human embryonic kidney (HEK 293) and liver (HEPG2) cell lines
Plant part
Leaf
Preparation
Extract Aqueous
Dosage
IC50 values: antioxidant 9.08±0.11 and 6.62±0.12 μg/mL, α-amylase 36.58±0.74 μg/mL, α-glucosidase 55.03±1.68 μg/mL
In vitro testing concentrations: IC50 values ranging from 6.62 to 55.03 μg/mL depending on assay
Mahdieh Abbasalizad Farhangi, Leila Nikniaz, Zeinab Nikniaz
ScienceDirect • Dec 2, 2025
Silva M.A., Santos R.B., Oliveira C.D. et al.
Frontiers in Pharmacology • Apr 22, 2025
Morvaridzadeh M., Fazelian S., Agah S. et al.
Nutrients (MDPI) • Nov 7, 2025