Both the binder and solid–electrolyte interface play an important role in improving cycling stability of electrodes for Na-ion batteries. In this study, a novel tetrabutylammonium (TBA) alginate is used to prepare Na0.67MnO2 electrode sodium-ion batteries with improved electrochemical performance. The ageing characterized. TBA alginate-based are compared polyvinylidene fluoride- (PVDF) Na show ...

This study aimed to obtain site-specific and controlled drug release particulate systems. Some particulates were prepared using different concentrations of sodium alginate (Na-Alg) alone and others were formulated using different proportions of Na-Alg with hydroxypropyl methylcellulose (HPMC) stearoxy ether (60M viscosity grade), a hydrophobic form of conventional HPMC, using diclofenac potassi...

Bulk nanocrystalline Sn3N4 powders were synthesised by a two step ammonolysis process followed by washing with dilute acid. Their performance as Li-ion and Na-ion battery negative electrodes was assessed by galvanostatic cycling in half cells vs. the metal, giving good performance in both cases and remarkable stability in the sodium cells. The effect of carboxymethyl cellulose and sodium algina...

Abstract Background This study evaluated the shelf life and effectiveness of Metarhizium anisopliae encapsulated in Na (sodium)-alginate matrix. Air-flow-dried freeze-dried beads containing conidia M. produced submersion liquid broth were fabricated characterized. Shelf efficacy against three species white grubs, namely Holotrichia serrata , Adoretus sp., Lepidiota mansueta, under greenhouse co...

Alginate denotes a group of industrially important 1-4-linked biopolymers composed of the C-5-epimers β-D-mannuronic acid (M) and α-L-guluronic acid (G). The polysaccharide is manufactured from brown algae where it constitutes the main structural cell wall polymer. The physical properties of a given alginate molecule, e.g., gel-strength, water-binding capacity, viscosity and biocompatibility, a...

Four hydrophilic polymers in the form of beads - chitosan, alginate, alginate/polyvinyl alcohol (PVA), and chitosan-coated alginate - were used as supports for lipase immobilisation. Hydrogel beads were characterised by bead-size-distribution estimation, surface morphology studies, and polymer interactions assessment. Matrix performances - loading efficiency, immobilisation yield, enzyme activi...

Nontoxic polymers PVP and Na-alginate may provide a favorable environment for the survival of bacteria. Therefore, were added to growth medium develop liquid inoculant Bradyrhizobium japonicum strain. The strain was identified by 16S rDNA sequencing. addition (1.8%) (0.2%) in promoted better (1.93 × 109 cells mL−1) B. compared control (3.50 102 after 6 months storage. combination ensured 1.53 1...

We describe a method for creating alginate hydrogels with adjustable degradation rates that can be used as scaffolds for stem cells. Alginate hydrogels have been widely tested as three-dimensional constructs for cell culture, cell carriers for implantation, and in tissue regeneration applications; however, alginate hydrogel implants can take months to disappear from implantation sites because m...

Mechanically robust alginate-based nanofibrous scaffolds were successfully fabricated by electrospinning method to mimic the natural extracellular matrix structure which benefits development and regeneration of tissues. Alginate-based nanofibres were electrospun from an alginate/poly(vinyl alcohol) (PVA) polyelectrolyte complex. SEM images revealed the spinnability of the complex composite nano...