Green Synthesis of Silver Nanoparticles with Therapeutic Potential

Researchers at Islamic Azad University in Iran have conducted a study on the green synthesis of silver nanoparticles using curcumin, a compound found in turmeric, and its potential therapeutic applications in treating Alzheimer's disease. The study analyzed the phytochemical composition, antioxidant activity, and anti-Alzheimer effects of curcumin-loaded silver nanoparticles. The results showed that the nanoparticles exhibited a particle size between 50 and 100 nm and had a zeta potential of -33 mV, indicating colloidal stability. The nanoparticles also demonstrated a crystalline structure and had antioxidant activity, with an IC value of 1167.9 μg/ml. Furthermore, the study observed anti-Alzheimer effects, with up to 44.3% inhibition of acetylcholinesterase activity at 585 μg/ml.

Key Takeaways:

• The study used a green synthesis method to produce silver nanoparticles using curcumin, a compound found in turmeric.
• The nanoparticles had a particle size between 50 and 100 nm and had a zeta potential of -33 mV, indicating colloidal stability.
• The nanoparticles exhibited a crystalline structure and had antioxidant activity, with an IC value of 1167.9 μg/ml.
• The study observed anti-Alzheimer effects, with up to 44.3% inhibition of acetylcholinesterase activity at 585 μg/ml.
• The researchers from Islamic Azad University, led by Seyedeh Zahra Malek, concluded that the nanoparticles have the potential to be used as multifunctional agents for neurodegenerative diseases.
• The study's results highlight the potential of green synthesis methods for producing nanoparticles with therapeutic applications.

Statistics:

• Particle size of the nanoparticles: 50-100 nm
• Zeta potential of the nanoparticles: -33 mV
• Antioxidant activity (IC value): 1167.9 μg/ml
• Anti-Alzheimer effects (inhibition of acetylcholinesterase activity): up to 44.3% at 585 μg/ml

Sources:

• Islamic Azad University Reports Findings in Green Synthesis (In Vitro Regulation of Amyloid production in Alzheimer's Disease via Curcumin-Loaded Silver Nanoparticles with Antioxidant and Acetylcholinesterase-Inhibiting Properties). Nanotechnology Weekly. June 16, 2025.
• In Vitro Regulation of Amyloid production in Alzheimer's Disease via Curcumin-Loaded Silver Nanoparticles with Antioxidant and Acetylcholinesterase-Inhibiting Properties. Molecular Neurobiology, 2025.
• Springer (www.springer.com)
• Molecular Neurobiology (www.springerlink.com/content/0893-7648/)