STS PPT 15: NANOTECHNOLOGY PART I

Nanotechnology

It is concerned with developing materials and devices on a scale of about 1 to 100 nanometers.

Nanometer

It is a unit of length in the metric system, equal to one-billionth of a meter.

1/1000000000

1 nanometer is equal to?

80,000 nanometers

The diameter of a human hair is, on average, __________________.

Nanotechnology

The use of ______________ can make it possible to add certain properties to matter that make it stronger, lighter, durable, reactive or even better conductors of electricity among several other useful properties.

application of nanotechnology in commercial products of everyday use

The ability to add certain properties is the reason that the ____________________________________ has grown

Nanotechnology

Different processes show that people in the past were already engaged in __________________

Nanotechnology

It has a rich and diverse history that spans several centuries.

What were the Nanotechnologies during Pre Modern Era?

500BC-1500AD

In what year does In ancient civilizations such Egyptians, Greeks and Romans used nanoparticles to create vibrant colors in art and ceramics.

Lycurgus Cup

It is is an ancient Roman glass cup that is one of the famous objects in the British Museum's collection

Lycurgus Cup

It is delicate cup made of glass glass which appears green when lit from the outside and red when lit from the inside.

Nanoparticle of Gold and Silver

________________________ were imbedded in the glass during the manufacturing process.

12th to 15th centuries

During what centuries does Vibrant stained glass windows in European cathedrals owed their rich colors to nanoparticles of gold

Vibrant Stained Glass Windows

This Nanotechnology during 12th and 15th centuries in European cathedrals owed their rich colors to nanoparticles of gold.

Gold Nanoparticles

This also acted as photocatalytic air purifiers.

13th to 18th Centuries

During what centuries does Damascus saber blades were made of a type of high carbon steel formulation that gave them exceptional hardness, flexibility, and sharpness.

Damascus saber blades

during 13th to 18th centuries _________________ were made of a type of high carbon steel formulation that gave them exceptional hardness, flexibility, and sharpness.

Damascus saber blades

They originated in the Middle East in the city of Damascus , Syria which was famous for its swordsmiths who created these saber blades.

Middle East in City of Damascus

Damascus saber blades were originated from where?

Photography

It is is the first modern example of nanotechnology which depends on silver nanoparticles sensitive to light.

Photography

What is the Nanotechnology in 19th Century?

1827

In the year _______, Joseph Niepce made the first successful photograph.

Joseph Niepce

In the year 1827, ______________ made the first successful photograph.

Silver Nanoparticles, Sunblock, Food Packaging Materials, Clothes coated with nanoparticles of Silica, Carbon Nanotubes

What are the Nanotechnologies in Everyday Life?

Nanotechnology in everyday life

The average person already encounters nanotechnology in a range of everyday consumer products.

Silver Nanoparticles

They are embedded in bandages to kill bacteria and prevent infection

Silver Nanoparticles

They are used to deliver antimicrobial properties in hand washes and socks

Sunblock

They contain nanoparticles of zinc oxide or titanium dioxide for improved UV protection.

anti aging creams and hair care products

Nanoparticles are used in some cosmetics such as ________________________

Nanoparticles

________________ are used in some cosmetics such as anti-aging creams and hair care products

Nanotechnology

It is used in food packaging materials like some plastic bottles designed to stop carbonated beverages from going flat.

food packaging materials

Nanotechnology is used in ____________________ like some plastic bottles designed to stop carbonated beverages from going flat.

plastic bottles designed to stop carbonated beverages from going flat

Nanotechnology is used in food packaging materials like some ____________________________________.

Clothes coated with nanoparticles of silica

_____________________________ to make it waterproof, stain-resistant, and wrinkle-free

Carbon nanotubes

_______________________ are one hundred times stronger than steel and are lighter, making them ideal for sports equipment such as bikes or tennis racket.