This document discusses nanotechnology, which deals with structures and devices that are 100 nanometers or smaller. It outlines the origin and theory of nanotechnology, and describes potential uses in areas like medicine, electronics, energy, sensors, and daily life. The document also discusses two approaches to nanotechnology - top-down and bottom-up - and explains how bottom-up manufacturing can produce structures with higher precision and perfect surfaces. While nanotechnology holds promise, the document notes there are also health and environmental concerns to consider regarding its development and use.

1. SUBMITTED BY:POOJA KHETWAL
Dehradun Institude Of Technology
BTECH (ECE-A)
ROLL NO. :- 68

2. 1) INTRODUCTION
2) ORIGIN OF NANOTECHNOLOGY
3) THEORY
4) VISION
5) USES IN OUR DAILY LIFE
6) APPLICATION
7) HEALTH AND ENVIRONMENT
8) FUTURE OF NANOTECHNOLOGY

3. NANOTECHNOLOGY REFERS TO A
FIELD OF APPLIED SCIENCE THAT
DEALS WITH STRUCTURES DEVICES 100
NANOMETERS OR SMALLER IN SIZE.
TO GIVE YOU AN IDEA HOW SMALL IS
,IT WOULD TAKE EIGHT HUNDRED OF
100 NANOMETER PARTICLE SIDE BY
SIDE TO MATCH THE WIDTH OF A
HUMAN HAIR.

4. •NANOTECHNOLOGY DEAL WITH THE
STUDY OF MATERIAL OF SIZE 10 9 m.
•THE MATERIAL IN NANOMETER SCALE
POSSES NOVEL PROPERTIES SUCH AS
HIGH EFFICIENCY AND CAPACITY THAN
THE NORMAL MATERIAL.
•1 NANOMETER (nm) =10‾9 METER(m).

5. RICHARD FEYNMAN WAS THE FIRST
PERSON TO SUGGEST THAT
NANOTECHNOLOGY WAS A POSSIBILITY.
THE TERM “NANOTECHNOLOGY “ WAS
DEFINED BY TOKYO SCIENCE
UNIVERSITY PROFESSOR NORIO IN 1974.

6. 1. NANOTECHNOLOGY MAKES MOST PRODUCT
LIGHTER,STRONGER,SMARTER,CHEAPER
AND MOST PRECISE.
2. MILITARY APPLICATION
3. IMPROVE TRANSPORTATION
4. MEDICINE
5. NANOTECHNOLOGY ALLOW TO WORK ON
MACROSCOPIC SCALE.

7. THERE ARE TWO TYPES OF APPROACHES
USED IN NANOTECHNOLOGY:
1) TOP DOWN
2) BOTTOM UP

8. 1. THEY ARRANGE SMALLER
COMPONENTS INTO MORE
COMPLEX.
2. LAYER BY LAYER SELF
ASSEMBLY. Eg- chemical
synthesis.
3.BOTTOM UP APPROACH
PRODUCTS HAVE A HIGHER
PERCISION ACCURACY AND
THEREFORE CAN
MANUFACTURE SMALL
STRUCTURES COMPARE TO
TOP-DOWN APPROACH.
1.CREATE SMALLER OBJECTS
USING LARGER OBJECTS.
2. USES THE PRINCIPLES OF
MOLECULAR
RECOGNIZATION.
3.TOP DOWN APPROACH REFERS
TO THE TRADITIONAL
MICROFABRICATION
METHOD WHERE TOOLS ARE
CUT,MILL AND SHAPE
MATERIAL INTO THE
DESIRED SHAPE AND ORDER

9. 4. BOTTOM UP
MANUFACTURING
CAN PRODUCE STRUCTURES
WITH PERFECT SURFACE AND
EDGES.
4. SURFACE AND EDGES
RESULTED BY TOP-DOWN
MANUFACTURING ARE NOT
PERFECT AS THEY ARE
WRINKLY OR CONTAIN CAVITY.

10. 1) MEDICINE
2) ELECTRONICS
3) ENERGY
4) CHEMICAL SENSORS
5) USES IN OUR DAILY LIFE
6) OPTICS

11. HEALTH AND ENVIRONMENT
CONCERN:SILVER NANOPARTICLES, WHICH ARE
BACTERIOSTATIC MAY
THEN DESTROY BENEFICIAL BACTERIA WHICH ARE
IMPORTANT
FOR BREAKING DOWN ORGANIC MATTER IN WASTE
TREATMENT.

12. THE FUTURE OF NANOTECHNOLOGY IS VERY
BRIGHT THAT THIS WILL BE ONE OF THE SCIENCE
OF THE FUTURE THAT NO OTHER SCIENCE CAN
LIVE WITHOUT.
THE FUTURE OF NANOTECHNOLOGY COULD
IMPROVE THE OUTLOOK FOR MEDICAL PATIENTS
WITH SERIOUS ILLNESSES OR INJURIES.