期刊
MARINE DRUGS
卷 19, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/md19090481
关键词
antifouling compounds; structural optimisation; butenolide; larval attachment assay
资金
- Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [SMSEGL20SC01]
By modifying the structure, Boc-butenolide demonstrated similar antifouling capabilities to butenolide with lower toxicity, and could be released in the marine environment to inhibit fouler attachment.
Butenolide derivatives have the potential to be effective and environmentally friendly antifouling agents. In the present study, a butenolide derivative was structurally modified into Boc-butenolide to increase its melting point and remove its foul smell. The structurally modified Boc-butenolide demonstrated similar antifouling capabilities to butenolide in larval settlement bioassays but with significantly lower toxicity at high concentrations. Release-rate measurements demonstrated that the antifouling compound Boc-butenolide could be released from polycaprolactone-polyurethane (PCL-PU)-based coatings to inhibit the attachment of foulers. The coating matrix was easily degraded in the marine environment. The performance of the Boc-butenolide antifouling coatings was further examined through a marine field test. The coverage of biofouler on the Boc-butenolide coatings was low after 2 months, indicating the antifouling potential of Boc-butenolide.
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