What is the difference between Bottom up approach and Top down approach with respect to nanotechnology ?
1 Answer

(i) Bottom up approach

In this, nano materials are made by building atom by atom or molecule by molecule.

(ii) Top down approach

In this a bulk material is broken or reduce in size or pattern. The techniques developed under this tile are modified

or improved one what we have in use to fabricate micro- processors, Micro-Electro-Mechanical Systems (MEMS) etc.

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