Fig. 1From: Organic–inorganic hybrid nanoflowers: types, characteristics, and future prospectsApplication cycle of the membrane with incorporated laccase nanoflowers: fabrication, use, rinse, and reuse. Phenol and ortho-, meta-, and para-substituted phenols react with 4-aminoantipyrine to form colored compounds, which can be easily detected. Reproduced with permission from Ref. [36]: Copyright 2013 Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimBack to article page