Differential Dynamic Microscopy

NOT SEEING IS ALSO BELIEVING. 

Differential dynamic microscopy also known as DDM is a new technique to measure dynamics of colloids, gels, emulsions and polymers solutions.

Watch DDM video.

https://youtu.be/ynrunN13sFY

 

  

 

How ddm works?

Step 1: differentiation

Step 2: fourier transformation

Step 3: structure function

Step 4: diffusion coefficient

 

DDM Variations

Examples of image sequences of different samples.

  • Polystyrene latex particles

https://www.youtube.com/watch?v=urA3yqkK57o

  • Cream

https://www.youtube.com/watch?v=pXXsdu_7yM8

  • Synthetic polymer microgel

https://www.youtube.com/watch?v=DjiUQ5lnZ9A

 

DDM literature

 https://scholar.google.com/scholar?hl=en&as_sdt=80005&sciodt=0,11&cites=...