Web2 days ago · The catechol moieties can form stable covalent bonds with the amino groups in chitosan, resulting in CC tissue adhesives with high adhesion strength. Sanandiya et al. [126] incorporated gallic acid-containing pyrogallol groups into chitosan to prepare a novel tissue adhesive (CSGA). WebThe grafting yield of catechol determines the adhesiveness of the catechol–chitosan composite to the mucosa. The more catechol it contains, the better the adhesion performance. Preparation of high-modification catechol–chitosan composites is an important prerequisite for the construction of mucoadhesive multifunctional MCs.
Preparation and characterization of dopamine–sodium carboxymethyl ...
WebOct 1, 2024 · The catechol modified chitosan did exhibit a stretching vibration attributed to aromatic C C at about 1528 cm-1 compared with unmodified chitosan. It is concluded that the catechol group was successfully grafted onto chitosan. This is consistent with the results of catechol modification by Lee [35, 36], Luo et al. WebMay 14, 2024 · Marine mussels secrete adhesive proteins to attach to solid surfaces. These proteins contain phenolic and basic amino acids exhibiting wet adhesion properties. This study used a mussel-inspired hemostatic polymer, chitosan-catechol, to treat gastrointestinal bleeding caused by endoscopic mucosal resection in a heparinized … song lyrics pissing the night away
Tannic Acid-Based Multifunctional Hydrogels with Facile Adjustable ...
WebHere, we conjugated catechols derived from mussel adhesive proteins to chitosan, which is a widely known mucoadhesive polymer. We demonstrated that the gastrointestinal (GI) … WebApr 1, 2024 · The catechol-modified chitosan was prepared by the functionalization of CS with catechol groups. Specifically, catechol groups were grafted onto the CS chains via … WebJun 15, 2024 · Development of efficient hemostatic gauze is critical to increasing survival rate by quick bleeding control of life-threatening hemorrhage. Herein, a novel chitosan non-woven hemostatic gauze is made by slightly surface modification with a special catechol compound, i.e. 3-(9,11,13-pentadecatrienyl)-1,2-benzenediol with a long side … song lyrics piece by piece kelly clarkson