Thermoresponsive Pluronic® F127 (PL) gels in water were investigated through rheological tests in different shear conditions. The gel strength was tuned with the addition of 1% polysaccharide solution. In the presence of xanthan gum (XG), the viscoelastic behavior of PL-based hydrogels was improved in aqueous environment, but the rheological behavior was less changed with the addition of XG in PBS solutions, whereas in the presence of 0.1 M NaCl, the viscoelastic parameters decreased. PL micellar networks exhibited a self-healing ability, recovering their initial structure after applying cycles of high strain. The rheological characteristics of the PL hydrogel changed with the addition of 1% polysaccharides (xanthan gum, alginate, κ-carrageenan, gellan, or chitosan). PL/polysaccharide systems form temperature-responsive hydrogels with shear thinning behavior, yield stress, and self-healing ability, being considered a versatile platform for injectable biomaterials or bioinks. Thus, in the presence of xanthan gum in aqueous medium, the gel strength was improved after applying a high strain (the values of elastic modulus increased). The other investigated natural polymers induced specific self-healing behaviors. Good performances were observed with the addition of gellan gum, alginate, and κ-carrageenan, but for high values of strain, the ability to recover the initial structure decreased. A modest self-healing behavior was observed in the presence of chitosan and xanthan gum dissolved in NaCl solution.
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http://dx.doi.org/10.3390/gels9090719 | DOI Listing |
J Food Sci Technol
January 2025
Department of Grain Science and Technology, CSIR-Central Food Technological Research Institute, Mysuru, 570020 India.
Unlabelled: The potential of (), an underutilized plant rich in medicinal and nutritional value, for producing ready-to-serve (RTS) beverages was explored. The research investigated commercial processing techniques for extracting fruit juice and the impact of stabilizers such as pectin (low and high), xanthan gum, and sodium alginate on beverage quality. Sodium alginate, chosen for its sedimentation rate and sensory acceptability, was further optimized in RTS formulations.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Food Eng. Department, Chemical and Metallurgical Engineering Faculty, Yildiz Technical University, 34210 Istanbul, Turkiye. Electronic address:
Liposomes are gaining interest in food and pharmaceutical applications due to their biocompatibility and non-toxicity. However, they suffer from low colloidal stability, leakage of encapsulated substances, and poor resistance to intestinal digestive conditions. To address these issues, propolis extract (PE) was encapsulated within a hybrid system combining liposomes and hydrogels.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China. Electronic address:
A pH responsive composite film was developed by incorporating cyanidin (CY) and egg white lysozyme fibril into konjac glucomannan (KGM) and xanthan gum (XG) matrix to monitor the chicken breast freshness in this work. The physicochemical properties of the films, especially pH sensitivity, evaluated by color difference and visual color change under different pH values, were first explored. The freshness changes of chicken breast sealed with the composite films were also analyzed.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Chemistry, Himachal Pradesh University, Shimla 171005, India. Electronic address:
Introduction: The rapid progress in polymer science has designed innovative materials for biomedical applications. In the case of drug design, for each new therapeutic agent, a drug delivery system (DDS) is required to improve its pharmacokinetic and pharmacodynamic parameters. Therefore, significant research has been carried out to develop drug delivery (DD) carriers for these new therapeutic agents.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
School of Engineering, University of Liverpool, Liverpool, L69 3GH, United Kingdom.
Hypothesis: We hypothesise that superhydrophobic surfaces can achieve effective interfacial slip and drag reduction even under non-Newtonian, shear-thinning fluid flows. Unlike Newtonian fluids, where slip is primarily influenced by viscosity and surface tension, we anticipate that the shear-thinning nature of these fluids may enhance slip length and drag reduction.
Experiments And Numerical Analysis: The superhydrophobic surfaces used in this study, featuring a dual-scale random topography, were fabricated via a spray coating process, and low-concentration xanthan gum solutions (50-250 ppm) were used as model shear-thinning fluids of low elasticity.
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