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Alginate, a natural biopolymer extracted from brown algae (kelp), has several advantages made it to be used as a matrix for excavation and delivery of a variety of biological agents. The present study was carried out systematically to prepare a new kind of biocompatible and biodegradable nano-particles for loading Bovin Serum Albumin (BSA) and to e...
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Glacial vicariance is regarded as one of the most prevalent drivers of phylogeographic structure and speciation among high-latitude organisms, but direct links between ice advances and range fragmentation have been more difficult to establish in marine than in terrestrial systems. Here we investigate the evolution of largely disjunct (and potential...
Macroalgae (or seaweeds) are the dominant primary producers in marine vegetated coastal habitats and largely contribute to global ocean carbon fluxes. They also represent attractive renewable production platforms for biofuels, food, feed, and bioactives, notably due to their diverse and peculiar polysaccharides and carbohydrates. Among seaweeds, br...
Reductive intellectualists about knowledge-how (e.g., Stanley & Williamson Journal of Philosophy 98, 411–44, 2001; Stanley Noûs 45, 207–38, 2011a, 2011b; Brogaard Philosophy Compass 3, 93–118, 2008a, Grazer Philosophische Studien 77, 147–90 2008b, Philosophy and Phenomenological Research 78, 439–67 2009, 2011) hold, contra Ryle (1946, 1949), that k...
Integrated multi-trophic aquaculture (IMTA) has the potential of reducing open-cage fish farming impacts on the environment while also introducing new value chains. The aim of this study was to investigate the growth and composition of the kelp Saccharina latissima in salmon-driven IMTA, and to assess the spatial extent of the influence of salmon d...
The article is devoted to the development of a new method for the production of fruit and berry marmalade, which is adding kelp to the traditional recipe of fruit and berry marmalade. The use of this additive is scientifically grounded in the amount of 5 %. This can improve the quality of fruit and berry marmalade, as well as update its assortment....
Citations
... The retention of a significant amount of water in hydrogel is caused by the presence of hydrophilic groups on the polymeric backbone. The maximum water uptake of an alginate hydrogel depends on many factors, e.g., the cross-linking time or concentration of cross-linker and varies from 50-90% [1], [2], [3]. Unique properties and biological activity make alginate hydrogel widely used in many fields, especially in the biomedical sector. ...
... Alginate hydrogel is also used for encapsulation of cells, genes, proteins, or vaccines. Moreover, soft and flexible structure of alginate hydrogel, likewise similar to extracellular matrix (ECM) gives the potential to the utilization in tissue engineering and regenerative medicine (e.g., scaffold) [2], [4]. ...
The application of additive manufacturing (AM) technology in biomedicine offers many advantages due to the possibility of personalization and precision in shape accurate reproduction or dose of drug selection. AM technique enables the use of a wide variety of biocompatible materials, which can be applied even in the form of hydrogel. However, the use of sodium alginate as a bioink is encountered with some difficulties, for example, problem with shape retention during fabrication before being cross-linked. In this paper, methods used in extrusion-based method that contributes to maintaining the precision and quality of the print by reducing the spill ability of alginate hydrogel are described. This paper presents one of the methods, which supports the alginate hydrogel manufacturing process—freeform reversible embedding of suspended hydrogels (FRESH), as well as the optimization of the manufacturing process parameters to improve the quality of prints.KeywordsAdditive manufacturingBioprintingSodium alginateHydrogel bioinkManufacturing parametersFRESH method
Metal forming industry often requires to estimate forging load. Analytical and numerical techniques are not sufficient to provide an accurate estimation of the forging load. Interestingly, a large amount of shop floor forging data exists that are yet to be effectively utilised. Modelling using data-driven techniques can take care of the uncertainty associated with flow stress and friction condition. This article proposes a methodology that uses the existing information of axisymmetric forged products for the estimation of forging load by suggesting a proper value of complexity factor. Appropriate complexity factor is essential for empirically estimating the forging load in open as well as closed die forging. Estimation of forging load for open die forging is carried out for four different materials of cylindrical shape. In case of closed die forging, estimation of forging load is carried out for two different products. Forging load estimation is carried out for different sizes and for different friction conditions. The proposed methodology of using the existing data provides reasonable accuracy in the prediction of forging load.KeywordsForging loadComplexity factorFrictionOpen die forgingClosed die forgingAxisymmetric product
The marine‐based biomaterials exhibit various activities that include antioxidant, anticoagulant, anticancer, antiviral, anti‐allergic, anti‐adhesive, anti‐angiogenic and anti‐inflammatory actions. This chapter discusses the sources of diferent biomaterials from marine organisms such as sponges, crustaceans, ascidians, and seaweeds. Chitosan, a natural linear biopolyaminosaccharide is obtained by alkaline deacetylation of chitin, which is the principal component of protective cuticles of crustaceans. Carrageenan is the generic name for a family of high molecular weight sulfated polysaccharides obtained by extraction of certain species of red seaweeds. Alginate is a linear and anionic polysaccharide biomaterial that has found numerous applications in biomedical science and tissue engineering. Alginate is obtained from the cell walls of algae. Fucoidan is a fucose‐containing sulfated polysaccharide derived from brown seaweeds, crude extracts of which are commercially available as nutritional supplements. Fucoidan can be used for the treatment of osteoarthritis.
