Question

Which of the following nanomaterial has all the three dimensions \(< 100\) nm?

• A. Nanotubes
• B. Nanowires
• C. Nanoshells
• D. Thin films

Hint:

Zero-dimensional nanomaterials like nanoshells and quantum dots have all three dimensions at the nanoscale.

Answer 1

The Correct Option is C

Step 1: Count nano dimensions:
Nanotubes and nanowires: 2 (diameter in two directions). Thin films: 1 (thickness). Nanoshells (like nanoparticles): 3.

Step 2: Pick:
We need 3, so the answer is nanoshells, option C.

Final Answer:
Nanoshells are zero-dimensional particles, nano in all three directions. \[ \boxed{\text{(C) }\text{Nanoshells}} \]