Synthesis of nanomaterials: top-down and bottom-up approaches

There are two main approaches to synthesize nanomaterial or nanoparticle. One is top-down approach and another is the bottom-up approach.

Let us discuss these approaches one by one: Continue reading “Synthesis of nanomaterials: top-down and bottom-up approaches”

What is Nanotechnology

To answer the question that what is nanotechnology, let us first discuss nanoscale because nanotechnology is a science that deals with objects in nanoscale. Nano means 10-9 or one billionth. For example, nano meter means 10-9 meter. Therefore nanotechnology is the science that deals with the objects in size 1 nm. Sometimes the range is defined to 1 to 100 nm. Continue reading “What is Nanotechnology”