There are many more contaminants beyond E. Coli. Current work is being done on the protocol for S. cerevisiae (Yeast) and DNA.
We have given evidence to the power of our cleaning solution. However, to cement it as a proven method, more labs need to adopt our protocol and test it for themselves.
We only covered the decontamination plastic pipette tips. There are many types of single-use plastic labware that could be cleaned given the right protocol.