Science of the Century-Nanoscience

Nanoscience first captured the world's attention when Nobel Prize winner Richard Feynman delivered his famous 1959 speech "There's Plenty of Room at the Bottom". Since Feynman's scientific call to action, nanoscience and nanotechnology have evolved into a revolutionary area of technology-based research, opening the door to precise engineering on the atomic scale and affecting everything from healthcare to the environment. This article gives an overview of Nanoscience and technology. Concept of nanoscience, its development, preparation, characterization and properties of nanomaterials have been discussed. Applications of nanomaterials in consumer products and also expected applications have been highlighted. Attentions are drawn towards risk assessment.