Enhancing astaxanthin accumulation in immobilized Haematococcus pluvialis via alginate hydrogel membrane.

Immobilized cultivation is anticipated to be effective for enhancing both biomass and astaxanthin accumulation in Haematococcus pluvialis (H. pluvialis). A novel fabrication method of alginate hydrogel membrane (AHM) was introduced for immobilized cultivation of H.

The role of ultraviolet radiation in the flavor formation during drying processing of Pacific saury (Cololabis saira).

Background: Traditional sun-drying aquatic products are popular and recognized by customers, owing to their unique flavor and long-term preservation. However, the product quality and production efficiency cannot be guaranteed. Cololabis saira is rich in unsaturated fatty acids, which are susceptible to hyperoxidation during the drying process.

A comprehensive study of the colloidal properties, biocompatibility, and synergistic antioxidant actions of Antarctic krill phospholipids.

Excipient selection is crucial to address the oxidation and solubility challenges of bioactive substances, impacting their safety and efficacy. AKPL, a novel ω-3 polyunsaturated fatty acids (PUFAs) esterified phospholipid derived from Antarctic krill, demonstrates unique antioxidant capabilities and synergistic effects. It exhibits pronounced surface activity and electronegativity at physiological pH, as evidenced by a critical micelle concentration (CMC) of 0.

MnFe phosphides doped in hollow Prussian blue analogues with Ru modification as an efficient cathode for Li-O batteries.

A highly efficient catalyst for Li-O batteries based on Ru and MnFe phosphides nanoparticles entrapped in a MnFe Prussian blue analogue (PBA) substrate (Ru-MnFeP/PBA) was explored. Synergy between homogeneous Ru and MnFe phosphides nanoparticles improved the catalytic activity and alleviated side reactions. The Li-O battery based on Ru-MnFeP/PBA exhibited excellent performance.

Ternary alloy (FeCoNi) nanoparticles supported on hollow porous carbon with defects for enhanced oxygen evolution reaction.

Low-cost non-noble metal nanoparticles are promising electrocatalysts that can catalyze oxygen evolution reaction (OER). Various factors such as poor activity and stability hinder the practical applications of these materials. The electroactivity and durability of the electrocatalysts can be improved by optimizing the morphology and composition of the materials.

Versatile Bilayer Hydrogel for Wound Dressing through PET-RAFT Polymerization.

Multifunctional hydrogel-based wound dressings have been explored for decades due to their huge potential in multifaceted medical intervention to wound healing. However, it is usually not easy to fabricate a single hydrogel with all of the desirable functions at one time. Herein, a bilayer model with an outer layer for hydrogel wound dressing was proposed.

Sodium Alginate Micelle-Encapsulating Zinc Phthalocyanine Dye-Sensitized Photoelectrochemical Biosensor with CdS as the Photoelectric Material for Hg Detection.

A simple and selective photoelectrochemical (PEC) biosensor was constructed for Hg detection based on zinc phthalocyanine (ZnPc) dye-sensitized CdS using alginate not only as a carrier but also as a binder. First, CdS as a photoactive material was in situ modified on the electrode surface using a rapid and simple electrodeposition to obtain an initial photocurrent signal. Second, ZnPc was loaded in the amphiphilic alginate micelle and then was coated onto the CdS film surface via alginate as the binder.

Combustion of lean methane over CoO catalysts prepared with different cobalt precursors.

To investigate the effect of catalyst precursors on physicochemical properties and activity of lean methane catalytic combustion, a series of CoO catalysts were prepared a precipitation method by using four different cobalt precursors: Co(CHO), Co(NO), CoCl, and CoSO. The catalysts were characterized by BET, XRD, SEM, Raman, XPS, XRF, O-TPD and H-TPR techniques. It was found that the different types of cobalt precursor had remarkable effects on the surface area, particle size, reducibility and catalytic performance.

A facile preparation of FePt-loaded few-layer MoS nanosheets nanocomposites (F-MoS-FePt NCs) and their application for colorimetric detection of HO in living cells.

Background: Rapid and sensitive detection of HO especially endogenous HO is of great importance for series of industries including disease diagnosis and therapy. In this work, uniform FePt nanoparticles are successfully anchored onto Few-layer molybdenum disulfide nanosheets (F-MoS NSs). The powder X-ray diffraction, transmission electron microscopy, UV-Vis spectra and atomic force microscopy were employed to confirm the structure of the obtained nanocomposites (F-MoS-FePt NCs).

Colloid properties of hydrophobic modified alginate: Surface tension, ζ-potential, viscosity and emulsification.

Micelle properties of hydrophobic modified alginate (HM-alginate) in various dispersion media have been studied by surface tension, ζ-potential, and viscosity measurements. Effect of salt on micelle properties showed that the presence of counter ion weakened the repulsive interaction between surfactant ions, decreased the critical micelle concentration (CMC) value of the HM-alginate, reduced the effective volume dimensions of HM-alginate and hence viscosity, which coincide with the corresponding ζ-potential values. Soy oil-in-water emulsions, stabilized solely by HM-alginate, were produced in high speed homogenization conditions and their stability properties were studied by visual inspection, optical microscopy and droplet size measurements.