I am currently working with cellulose nanoparticles. I would like to test if the polymer I am using are adsorbing or not onto their surface. There are different techniques such as Isothermal titration calorimetry (ITC), Small angle neutron scattering (SANS), Dynamic light scattering (DLS), zeta potential, H-NMR...

- Since I don't have much sample, H-NMR may be difficult to use because I have to use deuterated water.

- My nanoparticles are rodlike shaped so I don't know if DLS will capture polymer adsorption in the measurement of "hydrodynamic radius".

- I did not find any SANS facilities in Montreal...

- ITC seems very difficult to handle (the experiments itself) and may not be that reliable for such use. I may be mistaken here since I don't know much on this technique.

- Viscosimetry is another method but usually have to come with another method since it gives clues, not real proof.

Thank for the help in advance!!!

 

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