1. ‘THE SCIENCE OF MATERIALS AT
NANOTECHNOLOGY
‘THE SCIENCE OF MATERIALS AT
MOLECULAR SCALE’
ARJUN UDAYABHANU 16
EC-S3

2. WHAT IS NANOTECHNOLOGY
WHAT IS NANOTECHNOLOGY?  MANIPULATION OF MATTER AT ATOMIC,MOLECULAR AND SUPRAMOLECULAR SCALE. INVOLVES ORGANIC SCIENCE,SURFACE CHEMISTRY,MOLECULAR BIOLOGY,SEMICONDUCTOR PHYSICS,MOLECULAR ENGINEERING etc.

3. ONE NANO METER IS ONE BILLIONTH OF A METER. TWO APPROACHES INVOLVED
FUNDAMENTAL CONCEPTS
ONE NANO METER IS ONE BILLIONTH OF A METER TWO APPROACHES INVOLVED
BOTTOM-UP APPROACH AND TOP-DOWN APPROACH.
NANO MATERIALS HAVE BETTER SURFACE PROPERTIES AND CHEMISTRY.

4. NATURAL NANO MATERIALS
THE COLOUR OF A BUTTERFLY IS DUE TO LIGHT SCATTERING AT NANOSCALE
THE SKIN OF A GECKO LIZARD HAS STRUCTURES OF THE ORDER OF NANOMETERS,WHICH HELPS IT TO CLIMB STRUCTURES
NANO STRUCTURES ON THE SURFACE OF LOTUS LEAF HELPS IN ITS SELF-CLEANING PROCESS(HYDROPHOBIC EFFECT)

5. INTRUMENTS USED IN NANOTECHNOLOGY
ATOMIC FORCE
MICROSCOPE
SCANNING TUNNELING MICROSCOPE

6. HEALTH AND ENVIRONMENTAL FACTORS OF NANOTECHNOLOGY
NANO PARTICLES WHEN INHALED CAUSES EXCESSIVE STRESS,INFLAMMATION,PULMONARY DIESEASES.
CONSUMING NANO-TITANIUM OXIDE LEADS TO DNA AND CHROMOSOME LEADING TO AGING,CANCER ETC.
MATERILAS LIKE ASBESTOS SHEETS CAN LEAD TO RESPIRATORY DIESEASES.
CARBON NANOTUBES CAN CAUSE MESOTHELIOMA.
NANO PARTICLES CAN REACH ACROSS HUMANS THROUGH AIR AND ENTER INTO THE LUNGS EASILY.

7. APPLICATIONS OF NANOTECHNOLOGY
SILVER AS AN ANTI-BACTERIAL AGENT IN FOOD.
TISSUE ENGINEERING(MIMICKING THE MICROSTRUCTURE OF A CELL).
NANOELECTRONICS-MOSFET’S,QUANTUM COMPUTERS,DISPLAY’S BASED ON CNT’S.
PLATINIUM AS A CATALYST IN DIESEL ENGINES FOR CONTROLLING POLLUTION.
MEDICAL FEILD-NANOMEDICINES,NEURO-ELECTRONIC INTERFACES,NANOELECTRONIC SENSORS.

8. THATS IT! THANK YOU!