Blog Post 9: Intro to Invention Project

Begin to collect thoughts on a Nano invention or innovation. Choose a topic/idea and post this. Also decide on a partner or group and post who is in this partnership/group.
We were thinking about doing something with nano tubules assembled onto a patch in order to effect painless and easy inoculation in patients. This would be a positive step because traditional needles can damage veins and can lead to bruising in patients that can last for several days.

Blog Post 8: Applications

Blog Post 8: Applications
Find 10 nano-applications of interest to you. Post a brief description and a link for more info. For each application, explain the "nano" part based on the descriptions of what makes nano special from the nano.gov website: http://www.nano.gov/nanotech-101/special




http://www.sciencedirect.com/science/article/pii/S1359644607004618
This article reviews the limitation of drug deployment in sensitive areas like the eyes. Usual drugs are administered via topical solutions suspenstions and ointment. It also describes other theoretical ways to administer treatment at a nanometer scale. Techniques like microemulsions, nanosuspensions, nanoparticles, liposomes can be used to advance the field of ocular drug delivery.

http://www.nature.com/scientificamerican/journal/v298/n1/full/scientificamerican0108-82.html
While nanotechnology has large potential there needs to be improvements because miniscule devices will need a powersource better than a battery. Wasted energy or the human pulse could provide devices the energy to run simple gadgets. Piezoelectric nanowires could also be used to power medical devices like a pacemaker or an implantable wireless blood glucose meter.


http://ezproxy.lib.uwstout.edu:2048/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=a9h&AN=64350842&site=ehost-live
The increasing need to have precise control over semiconductor, optical, electrical and mechanical devices creates a bottleneck at the increasing difficulty to machine materials such as ceramics, glasses and silicon wafers at such a scale. This paper they use a multi wall carbon nano tube in the machining process to increase accuracy and efficiency.



More to come!

Blog 6

Develop a list of at least 10 good Nano websites. Get two types, one of a general nature, and one that is focused on your interests.


General nature:
http://www.nano.gov/
http://nanolab.me.cmu.edu/projects/
http://www.nanotech-now.com/
http://www.nbtc.cornell.edu/
http://www.techconnectworld.com/Nanotech2012/
http://www.nanomanipulation.org/
http://www.bionanotechnology.ox.ac.uk/

My interests:
understandingnano.com/medicine.html
http://www.cbsnews.com/stories/2011/09/07/scitech/main20102526.shtml
http://humanityplus.org/

Blog Post 5: Wave Interference Simulation Activities

1. Measure the wavelength of two drops of different amplitude.

High amplitude-1.70cm

Low amplitude-1.73cm

2. Measure the wavelength of two drops with different frequency.

Low frequency-3.66cm

High frequency-1.06cm

3. Explian your results.

It seems that the amplitude has very little to do with the wavelength. The frequency is directly proportional to the size of the wavelength though. Low frequency resulted in a very large wavelength while high frequency has a very small wavelength.

The amplitude, by definition has nothing to do with wavelength.

4 Introduce a second faucet for the next set of questions.

-measure the wavelength of the drips

The wavelength of the drips was 2cm

-measure distances from each drip to the 6 constructive interference points and report those values in cm

I gave my points letters based on no reason.

The graph made looks like:

1

                    P

      B

             E           A

      C

                    F

2

(Distances in cm)       B       C       E       P        F       A

Distance from 1       2.00    3.77     3.75   5.89     5.30    5.36 

Distance from 2       3.85    2.08     3.73   5.73     3.74    5.40

We see points of constructive interference at roughly multiples of the wavelength. At B the wave from one only has to travel one wavelength before it meets the trough from the wave from faucet 2 that traveled 2 wavelengths.

The points of destructive interference occur at points where a wave that travelled 1+x wavelength passes a wave that has travelled 1/2+x wavelenth. This means that a trough of one passes across a crest of another.

Blog Post 3: Wave Simulation

1. Which takes more energy, slow up and down, or fast up and down?
 Fast up and down takes more energy.
2. Fast frequency corresponds to low energy or high energy?
 Fast frequency corresponds to high energy waves.
3. Determine the frequency of the provided wave(frequency 27, amplitude 50)in Hz?
.98hz
4. Determine the frequency of the provided wave(frequency 100, amplitude 50) in Hz?
3.7037hz
5. Determine the frequency of the provided wave(frequency 27and amplitude 100) in Hz.
.98hz
6. What is the wavelength of the provided wave(frequency 27, amplitude 50)in cm?
60cm
7. What is the wavelength of the provided wave(frequency 100, amplitude 50)in cm?
16.5cm
8. Describe the relationships between energy, frequency and wavelength. Include descriptions for relationships of all three.
Energy- the ability to do work
Frequency- The rate at which a wave oscillates inside of a medium
wavelength- the distance between the crest of one wave to the crest of the nex.
Energy is proportional to frequency.
Wavelength was inversely proportional to the amount of energy light has.

Blog Post 2: Unit Cell of NaCl

Post the height, width and length of the unit cell in nm, angstroms, and meters. (I'm assuming by "unit cell" you mean one molecule of NaCl)

Using a scale of reference we can determine that the actual length, height and width of an NaCl atom. (Withholding the errors in the scale model of course)

The radius of the Na atom is .095nm which is equivalent to 1cm in our model. Using this correlation we can compute the length of one side of the molecule using dimensional analysis. 

(1cm/.095nm)=(3.5cm/xnm)

x=.3325nm

In other units:

x=.332500nm = 3.32500 angstroms = 3.32500*10^10 meters

Since the figure we are trying to compute is relatively square the length used for one side is also equal to the height, width and length

 

Determine and post the mass of one cube of NaCl. Calculate and post the number of moles of NaCl in one cube. Calculate and post the number of NaCl molecules in one cube of salt.

The mass of our cube of NaCl was 4.65e-5 grams. Since the formula for sodium chloride is NaCl we can just add together both AMUs to find the atomic mass

22.98amu + 34.45amu = 57.43amu

Using simple dimensional analysis the number of moles in the sample is: 8.09e-7 mol

Further dimensional analysis of 8.09e-7 mols can reveal how many molecules are in this edible rock.

8.09e-7 mol*(6.022e molecules/ 1mol)=3.667398e17 molecules

Determine the dimension of one cube of salt. Based on the dimensions determined by the unit cell model, determine and post the number of NaCl in one cube of salt.

By our estimations one cube of salt had a side length of .0611mm 61,100 nanometers. Using the fact that one side of a NaCl molecule is .332500nm we can find out how many molecules are in the cube

by using the sublime calculations of dimensional analysis.

(611,000nm)*(1molecule/.3325nm)=1830000 molecules in that length. Of course that is one side but since it's a cube the volume shouldn't be hard to find

V = L*W*H = (1830000molecules)^3

V=6.20^18 molecules in that particular cube of salt.

The answers for two and three aren't consistent. Perhaps the salt molecules aren't as packed edge to edge so when we determine the volume it seems like there are more molecules.

Blog Post 1: Describe 10nm and one mole of atoms

A mole thought might be even a bigger abstraction to the human mind (even though 1/4 of the way to alpha centauri is a bit of a stretch already). A mole is 6.022x10^23 atoms which is a whole mess of whatever. Lets try to sum up using something most college students know about, white castle sliders.
1 slider = A pale pasty sandwich with onion and cheese.
30 sliders = The typical number in a crave case. A hearty meal for two or suicide for one.
100 sliders = Packaged in what is known as a "crave crate" It is the
The entire weight of the hamburger, cooked and including the bun, according to White Castle, is 58 grams
1485=The average males body weight in sliders.
32259=The weight of a 1988 ford Astro van in sliders
5.23*10^(12)= It would take this many sliders to equal the wet body mass of every human being on earth.
1.4*10^(13)= Doesn't that number look familiar? It's the national debt in dollars!
6.022*10^(23)=Avogadros number worth of sliders.
1.01*10^(26)= This number of sandwiches is equivalent to one planet earth entirely comprised of sliders.