CR4® - The Engineer's Place for News and Discussion®


Previous in Forum: Top 10 Contributions of Engineers in the Last 50 Years   Next in Forum: Paidar Pump
Close
Close
Close
6 comments
Power-User
Turkey - Member - New Member

Join Date: Mar 2007
Posts: 325

Nano Technology

09/22/2013 7:38 PM

Hi, is it obligatory that when we talk about nano tech we must use electron microscopes? Can you give me the relation between electron microscopes and nano tech?

__________________
jinxnao
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Guru

Join Date: Mar 2007
Location: at the beach in Florida
Posts: 19465
Good Answers: 1140
#1

Re: nano technology

09/22/2013 8:05 PM

Well if you're going to have pictures, they will probably be taken through an electron microscope......

__________________
Life is like riding a bicycle. To keep your balance you must keep moving. A.E.
Register to Reply
Anonymous Poster #1
#2

Re: Nano Technology

09/22/2013 10:22 PM

microtechnology↔microscope
nanotechnology↔nanoscope
picotechnology↔picoscope

There just ain't no other way.

Register to Reply
Power-User

Join Date: Sep 2012
Location: Seattle, WA, USA
Posts: 136
Good Answers: 8
#3
In reply to #2

Re: Nano Technology

09/23/2013 10:32 AM

freckletechnology↔spottingscope

__________________
You have to actively participate in the manifestations of your own joys and good fortunes - they are not ready made for the taking, they are available for the making.
Register to Reply
Guru
Hobbies - Musician - Engineering Fields - Chemical Engineering - New Member Engineering Fields - Control Engineering - New Member Engineering Fields - Instrumentation Engineering - New Member

Join Date: Jan 2007
Location: Moses Lake, WA, USA, Thulcandra - The Silent Planet (C.S. Lewis)
Posts: 3987
Good Answers: 177
#4

Re: Nano Technology

09/23/2013 11:18 PM

Have you researched electron microscopes and their range of magnification?

If you have, then the answer must be obvious: "It depends". With that, I leave you to your own conclusions. Hopefully, you will have researched electron microscopes, and have an understanding of orders of magnitude.

__________________
"Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone." - Ayn Rand
Register to Reply
2
Power-User

Join Date: Mar 2005
Posts: 183
Good Answers: 3
#5

Re: Nano Technology

09/24/2013 4:20 PM

Because in nanotechnology we deal with extremely small devices at the atomic level, in order to study and "see" nanomaterials and nanodevices we need special types of microscopes. The old electron microscope does not do a good job.

During the last 30-35 years many types of microscopes were invented. The first one was the Scanning Tunneling Microscope (STM) whose inventors were awarded the Nobel Prize in Physics. This is a type of microscope that is one of a roader types called Scanning Probe Microscopes (SPM). SPM is a type that uses a probe to scan the surface of materials at the atomic level. There are several types os SPM. One of theme is the STM. Other types of SPM are Scanning Tunneling Microscope (STM), the Atomic Force Microscope (AFM), the Scanning Electron Microscope (SEM) that uses a beam of electrons as the probe to scan the surface of materials, the Transmission Electron Microscope (TEM), and many others.

Each one of these microscopes is used for particular applications. If you need to "see" the depth of materials, the best is the SEM; if you want to "look" at the surface profile of materials the best probably is the AFM, and so on.

Follow this link to see a simulator of an SPM at the university of Virginia: http://virlab.virginia.edu/VL/SPM_operation.htm

Nanotechnology is the future!

Thanks!

Abe

Register to Reply Good Answer (Score 2)
Guru
India - Member - Sensors Technology Popular Science - Cosmology - Dream, Think and Act United Kingdom - Member - New Member United States - Member - New Member Canada - Member - New Member

Join Date: Aug 2006
Location: AM-51, Deen Dayal Nagar, Gwalior, Madhya Pradesh, MP 474001, India
Posts: 3363
Good Answers: 32
#6

Re: Nano Technology

10/02/2013 9:56 PM

Nao-material nano-material how do you look like? Well, we are something like larger molecules or clusters of smaller molecules in nano meter scale. Look up and you can see us in Blue of sky or in deep sea water as well.

It is not always essential for you to see nano particles directly. For example nano gold particles suspended in fluid will give you color according to their size due to light scattering which is enough for you to have an idea from your necked eye alone.

High resolution surface and depth scanning probes are generally used for characterizing mechanical and elemental properties of the material in 3D. Nano materials are generally particles suspended into some fluid and obviously they will have Brownian motion and they will not be frozen at any one location so looking at anyone of them going to be a tough task unless you stick them on some solid surface.

__________________
Prof. (Dr.) Shyam, Managing Director for Sensors Technology Private Limited. Gwalior, MP474001, India.
Register to Reply
Register to Reply 6 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Copy to Clipboard

Users who posted comments:

amichelen (1); Anonymous Poster (1); Mike W (1); Mikerho (1); Shyam (1); SolarEagle (1)

Previous in Forum: Top 10 Contributions of Engineers in the Last 50 Years   Next in Forum: Paidar Pump

Advertisement