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GROUP 3 STS RESPI
- 1. THE NANO WORLD CUTILLION, ARBELYN JOY DE VERA, KRYSTAL GAIL PINEDA, CARL ANGELO TAÑEDO, MARY EVE GEMMA UNOQ, AFIQAH BS RESPIRATORY THERAPY 1
- 2. ’’By combining the skills of researchers in Chemistry, Physics and Biology, several promising new channels are opening up in Science.’’
- 3. Physicist Richard Phillips Feynman put forward the hypothesis that man could manipulate individual atoms and use them either to store information or to create functional systems. The idea was there; but not the instruments capable of verifying this hypothesis. Gordon Moore, co-founder of Intel, applied an economic law which dated from the end of the 19th century to electronics and estimated that the rate of miniaturization of transistors integrated onto a single chip would follow a regular curve. One chip could carry four integrated transistors. According to the curve of "Moore’s Law", transistors will have reached the 10 nm scale!
- 5. A METRE IS ABOUT THE DISTANCE BETWEEN THE TIP OF YOUR NOSE TO THE END OF YOUR HAND.
- 6. A NANOMETRE IS A BILLIONTH OF METRE 1 > 1,000,000,000 * A NANOMETRE IS THE UNIT OF MEASUREMENT USED IN THE NANOSCALE
- 7. NANOMETRE A HUMAN HAIR IS 400,OOO – 200,000 NANOMETRE WIDE A MAN’S BEARD GROWS A NANOMETRE PER SECOND
- 8. NANOSCALE
- 9. TINY PIECES = MORE SURFACE AREA NANOPARTICLES MORE SURFACE AREA = MORE REACTIVITY MORE REACTIVITY = MORE POTENTIAL USE Nanoparticles are just tiny bits of a larger material but what happens when you create such small pieces?
- 10. AT THE NANOSCALE, A MATERIAL’S PROPERTIES CAN CHANGE DRAMATICALLY. THESE COULD BE THEIR BOILING POINTS, SOLUBILITY, OR CATALYTIC ACTIVITY. WITH ONLY A REDUCTION IN SIZE MATERIALS CAN EXHIBIT NEW PROPERTIES, PROPERTIES THEY DO NOT POSSESS WHEN THEY ARE ON LARGER OR MACRO SCALE. IN FACEBOOK ‘’PM IS THE KEY’’ BUT IN THE NANO WORLD ‘’SIZE IS THE KEY’’ :D
- 11. SO HOW DO SCIENTISTS WORK ON SUCH A TINY SCALE?
- 12. THE ANSWER?
- 13. THEY USE VERY DELICATE AND PRECISE TOOLS
- 14. SCANNING TUNNEL MICROSCOPE A high-resolution microscope using neither light nor an electron beam, but with an ultrafine tip able to reveal atomic and molecular details of surfaces.
- 16. ATOMIC FORCE MICROSCOPE A type of high resolution scanning probe microscope that has a resolution that you can measure in fractions of a nanometer.
- 18. NANOSCIENCE The study of structures and materials on the scale of nanometers. To give you an idea of how long a nanometer is, this printed page is about 75,000 nanometers thick. When structures are made small enough—in the nanometer size range— they can take on interesting and useful properties.
- 19. NANOTECHNOLOGY Involves the techniques and tools used to study these new properties of matter and production of new devices, objects and systems to exploit them.
- 20. Nanoscience and nanotechnology involve the ability to see and to control individual atoms and molecules. Everything on Earth is made up of atoms—the food we eat, the clothes we wear, the buildings and houses we live in, and our own bodies. But something as small as an atom is impossible to see with the naked eye. In fact, it’s impossible to see with the microscopes typically used in a high school science classes. The microscopes needed to see things at the nanoscale were invented relatively recently— about 30 years ago.
- 21. Although modern nanoscience and nanotechnology are quite new, nanoscale materials were used for centuries. Alternate-sized gold and silver particles created colors in the stained glass windows of medieval churches hundreds of years ago. Today's scientists and engineers are finding a wide variety of ways to deliberately make materials at the nanoscale to take advantage of their enhanced properties such as higher strength, lighter weight, increased control of light spectrum, and greater chemical reactivity than their larger-scale counterparts.
- 22. MEDIEVAL STAINED GLASS Example of how nanotechnology was used in the pre-modern era
- 23. POSSIBLE APPLICATIONS OF NANOTECHNOLOGY IN THE PHILIPPINES • Information and Communication Technologies and Semiconductors • Health and Medicine • Energy • Food and Agriculture • Environment
- 24. ADVANTAGES AND DISADVANTAGES OF NANOTECHNOLOGY ADVANTAGES • Offers the potential for new and kinds of faster computers • More efficient power sources • Life-saving medical treatments DISADVANTAGES • Economic Disruption • Possible threats to security, privacy, health and environment
- 25. NANOTECHNOLOGY AND ENVIRONMENT • Reduced use of raw materials through miniaturization • Energy savings through weight reduction or through optimized function • Replacement of hazardous materials • Energy and resource efficiency in the Chemical Industry
- 26. NANOTECHNOLOGY AND HEALTH • Improved Medicines • Could save lives by making diagnosis and treatment far more effective
- 27. NANOTECHNOLOGY AND ECONOMY • Facilitate greener and more sustainable economic growth • Better products • Provision of new jobs
- 28. MAJOR IMPACTS OF NANOTECHNOLOGY ON SOCIETY • Faster, more functional, and more accurate medical diagnostic equipment • Faster, smaller, and more powerful computers that consume far less power, with longer-lasting batteries. • Improved vehicle fuel efficiency and corrosion resistance by building vehicle parts from nanocomposite materials that are lighter, stronger, and more chemically resistant than metal. • Carbon Nanotubes have a variety of commercial uses, including making sports equipment stronger and lighter weight.