The Nano World

Question 1

refers to any technology that is implemented at the nanoscale and has applications in
the real world.

Answer 1

Nanotechnology

Question 2

Refers to the branch of science and engineering devoted to designing, producing and using structures, devices , and systems by manipulating atoms and molecules at nanoscale.

Answer 2

Nanotechnology

Question 3

The concept of a ‘nanometer’ was first proposed by ___________, the 1925 Nobel Prize Laureate in
chemistry. He coined the term nanometer explicitly for characterizing particle size and he was the first to
measure the size of particles such as gold colloids using a microscope.

Answer 3

Richard Zsigmondy

Question 4

was the first to use
‘nanotechnology’ to describe semiconductor processes that occurred on the order of a nanometer

Answer 4

Norio Taniguchi

Question 5

materials have far larger surface area-to-volume ratio than bulk materials. As surface area per volume increases , materials can become more active.

Answer 5

Nanoscale materials

Question 6

It is defined as the control or restructuring of matter at the atomic and molecular levels in the size range
of about ____________

Answer 6

1 to 100 nm.

Question 7

nanoscale features are mainly built up from their elemental constituents

Answer 7

bottom–up approach

Question 8

uses lithographic and nonlithographic fabrication technologies

Answer 8

top–down approach