Cleaning Fungal Stains on Paper with Hydrogels

https://www.sciencedirect.com/science/article/pii/S0964830519310649?fbclid=IwAR3MZXzXamLu2gz1oMHMRmT-i5myFp28aU3J40Of0dB7H5Iau-vpAtNNKDE

An interesting article on the removal of fungal staining complexes from paper using rigid hydrogels and adjusting pH.