The principle of three-dimensional (3D) bio-printing involves integration biomaterials, live cells and controlled motor systems for creating complex biomimetic constructs. Bio-ink is one the most important components in process 3D needs to be sufficiently viscous dispensed as a free-standing filament but biocompatible maintain cell viability function. Alginate has been used widely due its bioco...

This work concerns the production of fibrous composite materials based on biodegradable polymers such as alginate, dibutyryl chitin (DBC) and poly-ε-caprolactone (PCL). For the production of fibres from these polymers, various spinning methods were used in order to obtain composite materials of different composition and structure. In the case of alginate fibres containing the nanoadditive trica...

A gram-negative Sphingomonas sp. strain A1 inducibly forms a mouth-like pit on the cell surface in the presence of alginate and directly incorporates polymers into the cytoplasm via the pit and ABC transporter. Among the bacterial proteins involved in import of alginate, a cell-surface EfeO-like Algp7 shows an ability to bind alginate, suggesting its contribution to accumulate alginate in the p...

The study was aimed on the assessment of extracts from four arctic brown seaweeds ( Ascophyllum nodosum , Fucus vesiculosus Laminaria digitata and Saccharina latissimi ) as stimulators plant growth. Seaweeds were collected Rebalda Bay White Sea in August 2021. Extracts obtained by isopropanol maceration method, then vacuum-dried at 40°C stored -4°C. Protein, polyphenols, chlorophyll, carotenoid...

Alginates in the format of scaffolds provide important functions as materials for cell encapsulation, drug delivery, tissue engineering and wound healing among others. The method for preparation of alginate-based foams presented here is based on homogeneous, ionotropic gelation of aerated alginate solutions, followed by air drying. The method allows higher flexibility and better control of the ...

Alginate-based microencapsulation of live cells may offer the opportunity to treat chronic and degenerative disorders. So far, a thorough assessment of physical-chemical behavior of alginate-based microbeads remains cloudy. A disputed issue is which divalent cation to choose for a high performing alginate gelling process. Having selected, in our system, high mannuronic (M) enriched alginates, w...