We use passive and active techniques to study microrheology of a biopolymer solution. The passive technique is video tracking of tracer particles in the biopolymer, a technique which is well established. The active technique is based on rotating optical tweezers, which is used to study viscosity. A method to actively measure viscoelascity using time varying rotation of a particle trapped in opt...

Conventional packaging offers protection, containment, communication, and convenience to packaged food. The most commonly used materials are petrochemical-based plastics which generate massive wastes that persist for a long time in the environment after their use. Bio-based best option replace this synthetic plastic. This review presents importance of fish products using polysaccharides, protei...

Among the twenty natural proteinogenic amino acids, proline is unique as its secondary amine forms a tertiary amide when incorporated into biopolymers, thus preventing hydrogen bond formation. Despite the lack of hydrogen bonds and thanks to conformational restriction of flexibility linked to the pyrrolidine ring, proline is able to stabilize peptide secondary structures such as b-turns or poly...

Lesions involving the osteochondral unit are difficult to treat. Biomimetic scaffolds previously shown as promising alternative. Such devices often lack multiple functional layers that mimic bone, cartilage, and interface. In this study, multilayered developed based on use of natural extracellular matrix (ECM)-like biopolymers. Particular attention is paid obtain a complex mimics native transit...

The aim of the present study was to produce lactoferrin (L) and chitosan (C) nanoparticles by ionic cross-linking with TPP thereby increase antimicrobial activity biopolymers. were synthesized in different proportions biopolymers characterized regarding their size, zeta potential, morphology, chemical interactions, structural characteristics, antibacterial activity. They also applied as coating...

Plants gums are complex mixtures of different polysaccharides with a variety of biological activities and pharmaceutical applications. Few studies have focused on physicochemical and biological properties of gums obtained from different plants. This study was designed to determine potential pharmaceutical and pharmacological values of the gum exudates and its isolated biopolymers obtained from ...

A new set of protein-like recombinant biopolymers with biomineralization and enhancement of cell response functions have been successfully synthesized. A simple method to strongly-anchor the biopolymers on metallic biosurfaces has been also developed. Coated dental and orthopedic implants will have improved, more stable, and faster integration in bone tissue. Partners to further develop the tec...

• Natural fibres decreases the dry density of earth extrudates. compressive strength increases ductility and Xanthan gum improves interface quality between natural fibres. Diss surface roughness provides interesting reinforcing effects. This paper deals with development sustainable building earth-based materials. More precisely, it addresses study reinforcement raw originated from Algeria (diss...

Biopolymers are known to be abundant and have low toxicity. The use of biopolymers as adsorbent materials in line with the current needs for cheap, environmentally friendly, high-efficiency adsorbents. physicochemical properties based on polysaccharide like chitosan adsorbents can still explored. This article was written using a systemmatic review conducted by collecting scientific journals fro...