Enzyme-based detergents and the nanostructure of cellulose fibres
Novozymes wanted to understand how enzymes affect the cellulose fibers in cotton fabrics by, for example, making the fabric more resistant to picking up dirt, or retaining the experience of newness for longer.
Supported by colleagues from University of Copenhagen (LINX project), Novozymes undertook measurements using small-angle neutron scattering (SANS) and spin-echo SANS (SESANS) techniques at the Budapest Neutron Centre and the Technical University of Delft, respectively.
Three fabric samples were investigated either dry or wet (soaked in water or heavy water). The neutron measurements revealed features of the nano-/micro-structures of the fabric fiber network.
"SESANS extends the length scale probed by regular SANS from the nano- to the micro-meter region, enabling us to model the average dimensions of the cellulose fibre walls and distinguish our samples."
Thomas H. Callisen
Senior Manager, Novozymes