When we mix polyelectrolytes in a salt solution, this is the precipitate that we get: polyelectrolyte complex that looks like white cheese! We can extrude this into many shapes with our lab extruder
We use this extruder to process the “cheese” into many shapes such as rods, tubes, tapes.
Producing tubes from polyelectrolyte complexes.
We use this robot to build polyelectrolyte multilayers. Substrates can be fixed on the side or on the bottom, face down, of two rotating shafts that can be spinned at a custom speed.
This small Fourrier Transform Infrared (FTIR) Spectrometer is used to characterize polyelectrolyte thin films and complexes.
This bigger FTIR Spectrometer can be used for normal samples as well as for Attenuated Total Reflectance (ATR FTIR) measurements.
The Ultraviolet visible spectrophotometer is used to characterize polyelectrolyte suspensions and complexes, and for turbidimetry measurements.
For quick thickness measurements of thin films.
The dissecting microscope allows imaging of samples with complex surface features.
Photomultiplier tube (PMT) inside a black box assembled in-house for scintillation counting of radiolabeled polyelectrolyte films and complexes.
This device built in our lab measures zeta potential of surfaces such as polyelectrolyte multilayers.