Locust bean gum/gellan gum double-network hydrogels with superior self-healing and pH-driven shape-memory properties

Abstract

Double-network hydrogels based on two natural polysaccharide polymers, locust bean gum and gellan gum, have been fabricated and exhibited excellent self-healing, thermo-processability, and pH-driven shape memory properties.

Self‐healing Polyol/Borax Hydrogels: Fabrications, Properties and Applications

“…second network improved mechanical properties [81] PVA/P(AAm-co-SA) -second network improved mechanical and pH-responsive properties [82] PVA/AG -AG boost self-healing and improved mechanical strength [83] LBG/Gg pH-driven shape memory ultrafast self-healing with high mechanical properties [84] PVA/CST -CST improved machinal properties [85] HA-DP Corsslinked PAAm strain sensors mussel-inspired flexible, wearable, and self-adhesive [86] Other types of borax-based hydrogels oxidized-alginate gelatin injectable in situ forming biodegradable scaffolds for cartilage regeneration and/or treatment of meniscal injuries gelatin create dynamic imine crosslinking with oxidized alginate [87][88][89] PVA/PSA/PNIPAAm thermoresponsive touch sensors PSA/PNIPAAm improved mechanical properties; induce thermo-sensitivity Although the history for the synthesis of polyol/B hydrogels, such as PVA/B [33,40] and galactomannan/B [41] hydrogels, is turned back to the 20 th century, more detailed studies have been performed on the characteristics of these hydrogels in recent years. The stability evaluation of scleroglucan (Sclg)/B hydrogels in aqueous media showed that in high acidic and high alkaline media the stability is reduced significantly.…”

“…Borax-crosslinked DN hydrogels of locust bean gum (LBG) and gellan gum (Gg) were developed as self-healing materials with pH-driven shape-memory properties. [84] The Gg chains can form coil-helix assemblies at room temperature which further agglomerate single helices, leading to the formation of double helices by H-bonding. The tensile strength of the hydrogels confirmed the existence of soft LBG and rigid Ggbased hydrogels.…”

“…These DN hydrogels showed 100 % recovery in 10 s after rupturing indicating ultra‐fast healability. Borax‐crosslinked DN hydrogels of locust bean gum (LBG) and gellan gum (Gg) were developed as self‐healing materials with pH‐driven shape‐memory properties . The Gg chains can form coil‐helix assemblies at room temperature which further agglomerate single helices, leading to the formation of double helices by H‐bonding.…”

“…(c) Stress‐strain profile of the original and self‐healed LBG/Gg DN hydrogel at 80 °C. (d) Effect of Gg concentration and temperature on the self‐healing efficiency of LBG/Gg DN hydrogel . (Copyright 2019 The Royal Society of Chemistry)…”

Modification of Collagen/Gelatin/Hydroxyethyl Cellulose-Based Materials by Addition of Herbal Extract-Loaded Microspheres Made from Gellan Gum and Xanthan Gum

“…It is a linear, anionic polymer used as a microbiological gelling agent, as well as a food additive with strong stabilizing, thickening, and gelling properties [14,15]. Apart from this, gellan gum has been utilized in biomedicine and material science taking the advantage of its peculiar gelling and rheological properties, as well as biocompatibility [16][17][18].…”