Nanotechnology and Its Impact on Your Future

• Why should you know something about Nanotechnology?

    

The National Science Foundation estimates that by the year 2015 there will be a need for 2 million workers worldwide in the fields of nanoscience and nanotechnology.                                                                      

 

An additional 5 million workers will be needed in support areas for these fields.

 

 By 2015, nanotechnology is expected to be a $3 trillion “industry”

 

 

 

 

• What is a “nano”?

A nano is one billionth of a meter or 10-9 m

 

  A normal person can walk 32 kilometers or about 20 miles in one day.  If a person were shrunk so that

they were one nanometer tall, how long would it take them to walk the length of a dollar bill?

 

24 years

 

• What is Nanotechnology?

 

The science of manipulating atoms and molecules to make new

materials and devices.

 

Interdisciplinary – where science and

engineering interconnect                                   

 

Occurs at the 1-100 nanometer range

#One nanometer is 10-9 meters or about 3 atoms long.  For comparison, a human hair is

about 60-80,000 nanometers wide

 

 

 

• Two Parts of Nanotechnology

 

        Nanotechnology is  often divided into two parts:

–Nanoscience – where researchers learn about the chemical and physical properties of materials at the 1- 100 nanometer (nm) scale. Materials at 1-100 nm are called nanostructures. They are the smallest things that can be made.

–Nanotechnology – where researchers develop and apply materials at this scale to develop new products or methods; i.e., turning nanostructures into useable tools and applications

 

•  Unique Properties and Nanotechnology

 

Nanotechnology involves the manufacturing and application of instruments and materials that have unique properties because of their small size.

At the nanoscale, properties of materials behave differently and are said to behave under atomic and molecular rules.

Researchers are using these unique properties of materials at this small scale to create new and exciting tools and products in all areas of science and engineering.

  

• Nanofabrication

  –Top-down nanofabrication – start with large material and bring it down to the nanoscale
–Bottom-up nanofabrication – start with individual atoms and build upwards to make a nanostructure

  

 

•   Nanotechnology is not New!

 

Gold nanoparticles in glass are reflected as red

 Ancient stained-glass makers knew if they put finely ground gold or silver in the glass they would get beautiful colors. They used nanosized gold and silver particles. Optical properties change with the nanoscale.

• What are some applications of Nanotechnology?

 

• Nanotube

 

Carbon Nanotube(CNT)

 

 

  -  Originally, discovered as by products of  fullerenes and now are considered to be the building blocks of future nanoscale electronic and mechanical devices

 

 

 

 

 

 

 

• Cancer Detection and Diagnosis

Currently done by physical examination or imaging techniques

 

 

Early molecular changes not detected by these methods.

 

 

Need to detect changes in small percentage of cells, need very sensitive technology, “enter” nanostructures.

 

• Cancer Treatment

              

 

 

              Nanotechnology may allow treatments that target cancer cells without harming nearby healthy cells.

 

 

                May allow creation of therapeutic agents that have a controlled, time-release strategy for delivering toxins.

• Nano Careers

 

 

•Design

 

•Development

•National security

•Technical support

•Research

•Management

•Packaging

•Energy producer

•Clothing design

 

• Education 

•Technical Programs

•Associates (2 years)

•Bachelors (4 years)

•Masters (6 years)

•Doctorate (8 years)

 

 

Created by Erçetin Kuyucu

Connect: kuyucut@mynet.com

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