What are Nanomaterials?
Nanomaterials are materials with structural components smaller than 100 nanometers in at least one dimension. These materials often exhibit unique physical and chemical properties due to their
nanoscale dimensions. They can be composed of metals, ceramics, polymers, or composites, and are utilized in various fields including
medicine, electronics, and
environmental science.
Why Develop Nanomaterials?
The development of new
nanomaterials is driven by the quest for advanced functionalities and improved performance. Nanomaterials can offer enhanced
mechanical strength, electrical conductivity, thermal stability, and chemical reactivity. They enable innovations in diverse sectors such as energy storage, drug delivery, and environmental remediation.
How are Nanomaterials Synthesized?
There are several methods to synthesize nanomaterials, broadly classified into
top-down and
bottom-up approaches. In the top-down approach, bulk materials are broken down into nanoscale structures using techniques like
lithography and
ball milling. The bottom-up approach involves assembling structures atom-by-atom or molecule-by-molecule, often through chemical vapor deposition, sol-gel processing, or molecular self-assembly.