Basics of Nanotechnology
What is nanotechnology?
understanding and control of matter at the nanoscale, at dimensions between approximately 1 and 100 nanometers
Why are nanomaterials special?
They have different properties than bulk.
What does “characterization” mean?
Studying size, shape & features
What does SEM stand for?
Scanning Electron Microscopy
How many nanometers are there in 1 meter?
1,000,000,000 (10⁹)
What size is 1 nanometer?
1 nm = 10⁻⁹ m (one billionth of a meter)
Why do nanoparticles look different in color?
Due to light scattering & quantum effects
Name one tool to see nanoparticles.
SEM or TEM
What does TEM stand for?
Transmission Electron Microscopy
Is 10 nm bigger or smaller than 100 nm?
Smaller
Give one example of a nanomaterial.
Carbon nanotubes, graphene, quantum dots, and various metal and metal oxide nanoparticles
Name one use of nanomaterials in healthcare.
Targeted drug delivery, diagnostics, and tissue engineering
What does XRD check?
Crystal structure
What does AFM do?
Scans surfaces of materials and biological samples at the nanoscale with a tiny tip
Which microscope is used to see the surface of nanoparticles?
SEM
Name one area where nanotechnology is used.
Medicine, electronics, energy, environmental science and manufacturing
What is one benefit of high surface area?
enhanced reactivity, improved catalytic behavior, improved drug delivery, enhanced strength and conductivity
What does FTIR tell us?
What chemical groups are there
Why XRD is used?
Tto analyze the crystalline structure and properties of materials
Which tool shows crystal structure of nanomaterials?
XRD
Who gave the famous talk on nanotechnology in 1959?
Richard Feynman
How can nanotechnology help in water cleaning?
By filtering & breaking down pollutants
What does DLS measure?
Size and size distribution of particles or molecules in a solution or suspension
What does Raman study?
Studies the vibrational, rotational, and low-frequency modes of molecules
Which microscope can see inside nanoparticles at atomic level?
TEM