{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Wang H"],"funding":["The Office of Naval Research"],"pagination":["e2104697"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9130901"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["9(15)"],"pubmed_abstract":["Water-responsive (WR) materials that reversibly deform in response to humidity changes show great potential for developing muscle-like actuators for miniature and biomimetic robotics. Here, it is presented that Bacillus (B.) subtilis' peptidoglycan (PG) exhibits WR actuation energy and power densities reaching 72.6 MJ m<sup>-3</sup> and 9.1 MW m<sup>-3</sup> , respectively, orders of magnitude higher than those of frequently used actuators, such as piezoelectric actuators and dielectric elastomers. PG can deform as much as 27.2% within 110 ms, and its actuation pressure reaches ≈354.6 MPa. Surprisingly, PG exhibits an energy conversion efficiency of ≈66.8%, which can be attributed to its super-viscous nanoconfined water that efficiently translates the movement of water molecules to PG's me"],"journal":["Advanced science (Weinheim, Baden-Wurttemberg, Germany)"],"pubmed_title":["High Energy and Power Density Peptidoglycan Muscles through Super-Viscous Nanoconfined Water."],"pmcid":["PMC9130901"],"funding_grant_id":["N00014-18-1-2492"],"pubmed_authors":["Liu ZL","Wang T","Lao J","Wang H","Chen X","Zhang S","Abzalimov R"],"additional_accession":[]},"is_claimable":false,"name":"High Energy and Power Density Peptidoglycan Muscles through Super-Viscous Nanoconfined Water.","description":"Water-responsive (WR) materials that reversibly deform in response to humidity changes show great potential for developing muscle-like actuators for miniature and biomimetic robotics. Here, it is presented that Bacillus (B.) subtilis' peptidoglycan (PG) exhibits WR actuation energy and power densities reaching 72.6 MJ m<sup>-3</sup> and 9.1 MW m<sup>-3</sup> , respectively, orders of magnitude higher than those of frequently used actuators, such as piezoelectric actuators and dielectric elastomers. PG can deform as much as 27.2% within 110 ms, and its actuation pressure reaches ≈354.6 MPa. Surprisingly, PG exhibits an energy conversion efficiency of ≈66.8%, which can be attributed to its super-viscous nanoconfined water that efficiently translates the movement of water molecules to PG's me","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 May","modification":"2025-04-04T10:42:33.611Z","creation":"2025-04-04T10:42:33.611Z"},"accession":"S-EPMC9130901","cross_references":{"pubmed":["35285168"],"doi":["10.1002/advs.202104697"]}}