Pre-Fukushima radionuclide levels in the environment

Povinec, Pavel P.; Hirose, Katsumi; Aoyama, Michio; Tateda, Yutaka

doi:10.1016/b978-0-12-824496-8.00010-9

Cited by 1 publication

(2 citation statements)

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“…Most are inorganic precipitations and adsorbed to the ship hulls through physical trapping and/or intermolecular interactions. 28 Different from the hydrophobic coating, which has a dense and rigid surface, the hydrophilic hydrogel has a soft and porous structure. Even though a hydration layer forms on its interface and achieves excellent antifouling capabilities for proteins, microbes, and other marine life, the inorganic sediment, such as mud and mineral particles, can be easily trapped within the hydrogel's cavities (Figure 1a).…”

Section: ■ Introductionmentioning

confidence: 99%

“…In marine environments, sediments, such as mud, are the primary source of contaminants. Most are inorganic precipitations and adsorbed to the ship hulls through physical trapping and/or intermolecular interactions . Different from the hydrophobic coating, which has a dense and rigid surface, the hydrophilic hydrogel has a soft and porous structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Zwitterionic Hydrogel Coating with Antisediment Properties for Marine Antifouling Applications

Song,

Zhang,

Shi

et al. 2024

ACS Appl. Mater. Interfaces

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Biofouling is a serious issue affecting the marine industry because the attached micro-and macrocontaminants can increase fuel consumption and damage ship hulls. A hydrophilic hydrogel-based coating is considered a promising antifouling material because it is environmentally friendly and the dense hydration layer can protect the substrate from microbial attachment. However, sediment adsorption can be an issue for hydrogel-based coatings. Their natural soft and porous structures can trap sediment from the marine environment and weaken the antifouling capability. There is still little research on the antisediment properties of hydrogels, and none of them deal with this problem. Here, we report on optimizing zwitterionic hydrogel-based coatings to improve their antisediment properties and achieve comparable performance to commercial biocidal coatings, which are the gold standard in the antifouling coating area. After 1 week of sediment contamination and 2 weeks of diatom coculturing, this optimized zwitterionic hydrogel coating maintained its antifouling properties with a few diatoms on the surface. Its large-scale samples also achieved antifouling performance similar to that of biocidal coatings in the Atlantic Ocean for 1.5 months. More importantly, our research provides a universal strategy to improve the antisediment properties of soft hydrogel-based coatings. For the first time, we report that the introduction of interfacial electrostatic interactions enhanced the antisediment properties of hydrogels.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%