Question

Which from following metal nanoparticle is used for coating the filter material that acts as effective bacterial disinfectant?

• A. Nickel
• B. Silver
• C. Gold
• D. Copper

Hint:

Silver (Ag) = Antimicrobial. Gold (Au) = Drug delivery/Imaging.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
Nanoparticles have unique properties that differ from bulk materials, leading to various industrial and medical applications.
Step 2: Detailed Explanation:
Silver nanoparticles (AgNPs) are widely known for their potent antimicrobial and antibacterial properties.
They release silver ions ($Ag^{+}$) which interact with bacterial cell walls and metabolic enzymes, leading to the death of the microorganism.
Because of this efficiency, they are commonly used as coatings for water filters, air filters, and medical bandages to act as disinfectants.
Step 3: Final Answer:
Silver nanoparticles are used for coating filter materials as bacterial disinfectants.