The OpdA-functionalized fabrics
could be stored in a phosphate buffer or in the dry state at 4 ◦C for at least 4 weeks without a large loss of
activity. When used in batch mode, the functionalized textiles could degrade 20 M MP in un-buffered
water at liquor to fabric ratios as high as 5000:1 within 2 h, and could be used repeatedly. The fabrics could
also be made into columns for continuous pesticide degradation. The columns were able to degrade 50 M
MP at high flow rates, and could be used repeatedly over 2 months. These results demonstrate that OpdA
immobilized on nonwoven polyester fabrics is useful in environmental remediation of organophosphate
compounds.