A starch-regulated adhesive hydrogel dressing with controllable separation properties for painless dressing change

Abstract

Herein, we report a starch-regulated adhesive hydrogel dressing. It can achieve rapid separation through the dissociation competition mechanism of polar small molecules, which greatly facilitate dressing replacement.

Multifunctional protocatechuic acid–polyacrylic acid hydrogel adhesives for wound dressings

“…3D and E). 32–44 Moreover, the PAA–PAE–PCA hydrogel exhibited reversible adhesion properties. As shown in Fig.…”

“…3D and E). [32][33][34][35][36][37][38][39][40][41][42][43][44] Moreover, the PAA-PAE-PCA hydrogel exhibited reversible adhesion properties. As shown in Fig.…”

Recent advances in fabricating injectable hydrogels via tunable molecular interactions for bio-applications

“…Moreover, the super hydrophilic hydrogel also showed low organ toxicity and considerable anti-biofouling properties with a protein adsorption amount of only about 4.8 mg cm À2 , which can be applied as anti-biofouling implantable material; However, injectable hydrogels only based on hydrogen bondings generally suffered from an intrinsically weak structure with poor stability due to competition of polar water molecules with the formation of intermolecular hydrogen bonds. 108,109 Thus, most hydrogen bonding-based hydrogel generally showed limited mechanical properties and may easily dissemble under aqueous conditions. To further improve the stability of hydrogen bonding-based injectable hydrogels, other dynamic reversible bonds such as hydrophobic interactions or electrostatic interactions were introduced to improve their mechanical properties.…”

Hydrogel-based dressings designed to facilitate wound healing

“…However, conventional suturing methods used to close these wounds have drawbacks such as secondary tissue damage, increased risk of infection, and discomfort during suture removal. 230 In contrast to sutures, hydrogel-based dressings have emerged as a less invasive and more effective alternative for wound healing. In order to promptly close incision wounds, achieve effective hemostasis, and prevent wound infections, it is essential to utilize hydrogel dressings with adhesive properties, antibacterial efficacy, hemostatic capabilities, and self-healing properties to facilitate the repair of the incision wound.…”