{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["He X"],"funding":["National Natural Science Foundation of China","Southwest Minzu University"],"pagination":["7561-7568"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9993237"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(11)"],"pubmed_abstract":["Catechol-based hydrogels have good adhesion properties; however, since the concentration of catechol is low and it can be easily oxidized to quinone, the adhesion performance of the hydrogels is reduced, which limits their application as self-adhesive flexible wearable sensors. In this work, a dopamine: poly(sodium 4-styrenesulfonate) (DA:PSS)-initiated strategy was proposed to construct adhesive hydrogels, where the semiquinone radicals present in DA:PSS were used to initiate radical polymerization to obtain the DA:PSS/poly(acrylic acid) (DA:PSS/PAA) hydrogel. This hydrogel exhibited good stretchability and adhesion with various substrates. We observed that, even after exposure to air for 21 days under certain relative humidity (76%), the catechol groups hardly oxidized and the DA:PSS/PAA hydrogel presented good adhesion. The DA:PSS/PAA hydrogel also showed good electrical conductivity and fast response ability. Thus, the general strategy of triggering monomer polymerization to form hydrogels based on the semiquinone radical present in DA:PSS offers great potential for their application in flexible electronic devices and wearable sensors."],"journal":["RSC advances"],"pubmed_title":["PSS-dispersed dopamine triggered formation of PAA adhesive hydrogel as flexible wearable sensors."],"pmcid":["PMC9993237"],"funding_grant_id":["ZD2022695","51273220"],"pubmed_authors":["Zhang W","Li X","Zuo F","He S","He X","Wen N","Chen C","Yang S"],"additional_accession":[]},"is_claimable":false,"name":"PSS-dispersed dopamine triggered formation of PAA adhesive hydrogel as flexible wearable sensors.","description":"Catechol-based hydrogels have good adhesion properties; however, since the concentration of catechol is low and it can be easily oxidized to quinone, the adhesion performance of the hydrogels is reduced, which limits their application as self-adhesive flexible wearable sensors. In this work, a dopamine: poly(sodium 4-styrenesulfonate) (DA:PSS)-initiated strategy was proposed to construct adhesive hydrogels, where the semiquinone radicals present in DA:PSS were used to initiate radical polymerization to obtain the DA:PSS/poly(acrylic acid) (DA:PSS/PAA) hydrogel. This hydrogel exhibited good stretchability and adhesion with various substrates. We observed that, even after exposure to air for 21 days under certain relative humidity (76%), the catechol groups hardly oxidized and the DA:PSS/PAA hydrogel presented good adhesion. The DA:PSS/PAA hydrogel also showed good electrical conductivity and fast response ability. Thus, the general strategy of triggering monomer polymerization to form hydrogels based on the semiquinone radical present in DA:PSS offers great potential for their application in flexible electronic devices and wearable sensors.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Mar","modification":"2025-04-04T18:51:04.433Z","creation":"2025-04-04T18:51:04.433Z"},"accession":"S-EPMC9993237","cross_references":{"pubmed":["36908533"],"doi":["10.1039/d2ra07243b"]}}