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how much smaller than WHAT is a nanoparticle? as opposed to other small objects, how much bigger is a nanoparticle than to the smallest known particle in universe? do nanoparticles have specific geometric shapes associated with what they are designed to do? are nanoparticles now used to cure health problems, and if so, how? did you read SPHERE by michael creighton? interesting book!

2006-08-22 17:31:44 · 9 answers · asked by Louiegirl_Chicago 5 in Science & Mathematics Other - Science

9 answers

Here are some examples of scaling.

1 meter ~ 1 yard (actually 39.37 inches)

1 mm = one one-thousandth of a meter, approximately 39.37 mils


Micron
1 micron = 1 one-millionth of a meter (um)

diameter of human hair: 17 - 181 um

diameter of red blood cell (erythrocytes): 6 to 8 um

length of a typical bacteria: 0.5 to 5 um


Nanometer
1 nanometer = 1 billionth of a meter (nm)
diameter of shell of a virus: 10 to 300 nm

diameter of DNA helix: 1.84 to 2.55 nm

2006-08-22 17:53:55 · answer #1 · answered by Tom-SJ 6 · 0 0

They are very small, but they do have some size. They are not smaller than atoms, despite the definition of 'nano' as a prefix. Nanoparticles are usually the atoms used in making nanomachines, or anything now defined by nanotechnology. In this case, you have to start with atoms of some sort as the building blocks, because we cannot build with anything smaller,

2006-08-22 17:55:07 · answer #2 · answered by iandanielx 3 · 1 0

What is a nanoparticle? This must be something new. I have never heard of that term and I'm an physicist! Atoms, molecules, electrons, neutrons, protons, but Nanoparticles?

2016-03-27 01:56:41 · answer #3 · answered by ? 4 · 0 0

nano is a prefix to say that whatever follows is 10^-9 times smaller than the thing that follows, like nanometer of nanosecond.

2006-08-22 17:35:07 · answer #4 · answered by adklsjfklsdj 6 · 0 0

nano particles are of the size of 10^ -9.they can be made into many geometrical shapes,depending upon their usage

2006-08-22 17:40:44 · answer #5 · answered by ashh_chdg 1 · 1 0

a nanometer is = 10 ^-9 meter

2006-08-22 17:34:12 · answer #6 · answered by Mama R 5 · 0 0

1 nm = 10^-9 m

Comparison:

50,000 nm - diameter of hair

1,000 nm - bacteria

100 nm - virus, transistors in IC

10 nm - proteins

1 nm - amino acid

0.1 nm - atoms

2006-08-22 18:10:18 · answer #7 · answered by ideaquest 7 · 1 0

Very, very small!

2006-08-25 22:59:15 · answer #8 · answered by postaljack 3 · 0 0

It's really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really small. Smaller than a proton.

2006-08-22 17:34:28 · answer #9 · answered by Anonymous · 0 0

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