“…Moreover, in the spectra corresponding to loaded materials (Zeo/Bio and Zeo/Impreg), the absorption bands of the isothiazolinone structure are clearly detected. Indeed, bands at 2940, 2890 and 886 cm −1 (assigned to the C-H stretch vibration), in the range of 1450-1390 cm −1 (attributable to the C-H flexion) and at 600 cm −1 (i.e., the band corresponding to the stretching of C-Cl) can be observed [17,25,31]. These results prove that biocide molecules retain their chemical integrity after being adsorbed.…”