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Heteroprotein complex coacervation has potential for a wide range of applications. However, the sensitivity of coacervates to slight changes in physico-chemical conditions may constitute a technological barrier for their development and deserves to be better understood. In this study, the rheological properties of β-lactoglobulin/lactoferrin (βLG/LF) heteroprotein complex coacervates were investigated with respect to narrow changes of temperature (5-40 °C) and ionic strength (0 to 10 mM added NaCl). The apparent viscosity of βLG/LF coacervates prepared at 20 °C showed a high sensitivity to temperature, decreasing progressively at elevated temperatures. Frequency sweep experiments demonstrated that coacervates behave as a viscoelastic liquid throughout the investigated frequency range at T>10°C. Time-temperature superposition principle revealed that the interaction involved in the coacervation process were temperature-independent. The calculated activation energy was approximately 85 kJ/mol. The addition of NaCl (up to 10mM) prior to coacervation, resulted in an increase of the viscosity but did not show a clear trend in the evolution of viscoelastic moduli. These new insights allow a better understanding of the interactions involved in concentrated protein coacervates enabling better control over their potential uses.
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http://dx.doi.org/10.1016/j.ijbiomac.2024.139121 | DOI Listing |
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September 2025
Key Laboratory of Electrochemical Power Sources of Hubei Province, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
Hybrid artificial layer based on inorganic/polymer composite endows superior toughness and mechanical strength, which can achieve high stability of lithium metal anode. However, the large particle size and uneven distribution of inorganic fillers hinder the uniform flow of lithium ions across the membrane, making it difficult to achieve smooth lithium metal deposition/stripping. In this work, a chemical lithiation-induced defluorination strategy is proposed to engineer poly(vinylidene difluoride) (PVDF)-based artificial layers, enabling in situ incorporation of highly dispersed LiF nanofiller within the polymer matrix and precise control over the LiF content.
View Article and Find Full Text PDFJ Sci Food Agric
September 2025
College of Food Science & Technology, Shanghai Ocean University, Shanghai, China.
Background: Kaempferol (KAE), a bioactive flavonoid, has limited solubility and stability in water. Zein-gum arabic (GA) nanoparticles (NPs) are promising carriers for KAE, but the influence of preparation methods on their structure and properties remains unclear. This study investigated the effect of preparation method on the structure and properties of KAE-loaded zein-GA NPs.
View Article and Find Full Text PDFRegen Biomater
August 2025
Institute of Stomatology & Oral Maxilla Facial Key Laboratory, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China.
Reconstructing bone defects remains a significant challenge in clinical practice, driving the urgent need for advanced artificial grafts that simultaneously promote vascularization and osteogenesis. Addressing the critical trade-off between achieving high porosity/strength and effective bioactivity at safe ion doses, we incorporated strontium (Sr) into β-tricalcium phosphate (β-TCP) scaffolds with a triply periodic minimal surface (TPMS) structure using digital light processing (DLP)-based three-dimensional (3D) printing. Systematically screening Sr concentrations (0-10 mol%), we identified 10 mol% as optimal, leveraging the synergy between the biomimetic TPMS architecture, providing exceptional mechanical strength (up to 1.
View Article and Find Full Text PDFSci Total Environ
September 2025
Laboratoire Physico-Chimie des Matériaux, Substances Naturelles et Environnement, Faculty of Sciences and Techniques, Abdelmalek Essaâdi University, Tangier, Morocco.
Escalating concentrations of norfloxacin (NFX) in surface and wastewaters demand sustainable remediation strategies. In this study, dual-functional hydrochars were synthesized from argan nut shells (ArNS) via hydrothermal carbonization (HTC), with process conditions optimized by varying temperature (150-200 °C) and residence time (2-6 h). Among the materials, H1:5@150-4-prepared at 150 °C for 4 h with a biomass-to-water ratio of 1:5-exhibited the best performance, achieving a monolayer NFX adsorption capacity of 27.
View Article and Find Full Text PDFFood Chem
September 2025
College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China. Electronic address:
Herein, we present a simple and novel method to prepare soybean protein isolate (SPI)-based hydrogels with good mechanical characteristics. First, SPI/DSA hydrogels were prepared using SPI and different M/G ratios (1:2, 1:1, and 2:1) of dialdehyde sodium alginate (DSA). Then, the hydrogels were immersed in CaCl2 solution to form SPI/DSA@Ca double network hydrogels.
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