Biofouling is a serious threat to marine renewable energy structures and aquaculture operations alike. As an alternative toxic surface coatings, ultrasonic antifouling control has been proposed as environmentally friendly means reduce biofouling. However, the impact of ultrasound on fish farmed in offshore or multi-purpose platforms, combining production aquaculture, not yet assessed. Here we s...

Multifunctional black-silicon (b-Si) integrated on the surface of an implantable intraocular pressure sensor significantly improves sensor performance and reliability in six-month in vivo studies. The antireflective properties of b-Si triples the signal-to-noise ratio and increases the optical readout distance to a clinically viable 12 cm. Tissue growth and inflammation response on the sensor i...

The spread of non-native species has been a subject of increasing concern since the 1980s when human-mediated transportation, mainly related to ships' ballast water, was recognized as a major vector for species transportation and spread, although records of non-native species go back as far as 16th Century. Ever increasing world trade and the resulting rise in shipping have highlighted the issu...

Silicone biofouling release coatings have been shown to be an effective method of combating fouling. Nearly all silicone foul release coatings are augmented with an oil additive to decrease macrofouling attachment strength. This paper addresses the effect of the type of oil that is incorporated into the silicone coating and the type of silicone coating itself (silica vs calcium carbonate filled...

Large-scale application of alginate-poly-L-lysine (alginate-PLL) capsules used for microencapsulation of living cells is hampered by varying degrees of success, caused by tissue responses against the capsules in the host. A major cause is proinflammatory PLL which is applied at the surface to provide semipermeable properties and immunoprotection. In this study, we investigated whether applicati...

Abstract This study endeavors to augment the antibacterial and anti‐biofouling properties of thin‐film composite polyamide membranes by subjecting them modification with chitosan silver nanoparticle materials through UV‐induced graft polymerization technique. Various surface assessment methods were employed, efficiency membrane performance was demonstrated flux retention filtration process, whi...

Milli-channel baffle labyrinths are widely used in drip irrigation systems. They induce a pressure drop enabling irrigation. However, with section thickness that is measured mm 2 , they sensitive to clogging, which reduces the performance and service life of system. The impact chlorination (1.5 ppm free chlorine during 1 h application) flushing (0.18 MPa) on biofouling non-pressure-compensating...

Biofouling from microorganisms, plants, barnacles, mussels or algae is a major problem for marine structures. Fouling leads to increased fuel costs due frictional resistance on ships, and reduces reserve buoyancy of floating offshore structure, in addition causing cage deformation structural fatigue, impacting endurance materials. The intrusion invasive aquatic species (IAS) new environments by...

Manganese oxidizing bacteria colonizing the titanium surfaces exposed to seawater were characterized by periodically retrieving the coupons over a period of two years. About 20% of the initial colonizers were capable of oxidizing manganese, and the dominant manganese oxidizing bacteria were those belonging to Gram negative Pseudomonas spp. Gram positive, Bacillus spp, were also observed, though...