{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T08:54:50Z","timestamp":1781772890382,"version":"3.54.5"},"reference-count":37,"publisher":"IOP Publishing","issue":"4","license":[{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"},{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/questions\/alternative-author-rights-policies\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["62203400"],"award-info":[{"award-number":["62203400"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Bioinspir. Biomim."],"published-print":{"date-parts":[[2026,8,31]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Magnetic soft robots are widely employed in micromanipulation applications because of their inherent biocompatibility, untethered actuation capabilities, and controllability. This study presents the fabrication and application of a U-shaped robotic gripper (U-SRG) and experimentally verifies the control performance of a magnetic control system for two-dimensional (2D) rotation, translational motion, deformation, and microsphere grasping. The magnetic component of the U-SRG was fabricated by doping polydimethylsiloxane with neodymium-iron-boron (NdFeB) powder, followed by molding via post-treatment with Ecoflex-30 elastic silicone. The magnetic field generated by the electromagnetic coils of a magnetic control system can be conveniently, quickly, and precisely regulated using computers. Moreover, a uniform magnetic field could be precisely steered within a 2D plane, and the deformation magnitude of the U-SRG could be tuned by adjusting the intensity of the uniform magnetic field. The planar motion of the U-SRG was controlled by a synthetic magnetic field, and its speed was adjusted according to the magnitude of the magnetic field gradient. The magnitude and direction of the magnetic field required for each segment of the U-SRG path can be preset using computer software, enabling the U-SRG to precisely grasp and release the microspheres. To improve the micro-object grasping efficiency of the U-SRG, a crab-inspired gripper, denoted as U-SRGs, was developed by optimizing the design of the U-SRG. The bioinspired design does not directly replicate the external morphology of crab claws; instead, it draws inspiration from the functional differentiation of paired crab chelae, which can cooperate while exhibiting different grasping roles. This biological principle was translated into an asymmetric magnetic design strategy for the U-SRGs. By asymmetrically doping the left and right fingers of the U-SRGs with NdFeB powder, the gripper achieved differentiated clamping deformation under a uniform magnetic field. Owing to this capability, U-SRGs can realize size-based screening, manipulation, and targeted delivery of micro-objects.<\/jats:p>","DOI":"10.1088\/1748-3190\/ae76a3","type":"journal-article","created":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T23:00:21Z","timestamp":1780441221000},"page":"046003","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["A U-shaped robotic gripper with displacement and deformation controlled by programmable magnetic fields"],"prefix":"10.1088","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8232-5842","authenticated-orcid":false,"given":"Liguo","family":"Dai","sequence":"first","affiliation":[{"name":"Zhengzhou University of Light Industry"},{"name":"College of Mechanical Engineering, Inner Mongolia University of Technology"},{"name":"Inner Mongolia University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-9489-7375","authenticated-orcid":true,"given":"Aofei","family":"Yan","sequence":"additional","affiliation":[{"name":"Zhengzhou University of Light Industry"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuting","family":"Zhou","sequence":"additional","affiliation":[{"name":"Shenyang Institute of Automation, Chinese Academy of Sciences"},{"name":"Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences"},{"name":"University of Chinese Academy of Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zheng","family":"Li","sequence":"additional","affiliation":[{"name":"Zhengzhou University of Light Industry"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lichao","family":"Liu","sequence":"additional","affiliation":[{"name":"Hanyang University ERICA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhigang","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Mechanical Engineering, Inner Mongolia University of Technology"},{"name":"Inner Mongolia University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaowen","family":"Song","sequence":"additional","affiliation":[{"name":"College of Mechanical Engineering, Inner Mongolia University of Technology"},{"name":"Inner Mongolia University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1884-559X","authenticated-orcid":true,"given":"Huadong","family":"Zheng","sequence":"additional","affiliation":[{"name":"Zhengzhou University of Light Industry"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2026,6,18]]},"reference":[{"key":"bbae76a3bib1","doi-asserted-by":"publisher","first-page":"eabd9461","DOI":"10.1126\/scirobotics.abd9461","type":"journal-article","article-title":"Toward next-generation learned robot manipulation","volume":"6","author":"Cui","year":"2021","journal-title":"Sci. Robot."},{"key":"bbae76a3bib2","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1016\/j.cirp.2024.03.008","type":"journal-article","article-title":"Precision optimized process design for highly repeatable handling with articulated industrial robots","volume":"73","author":"Guembel","year":"2024","journal-title":"CIRP Ann."},{"key":"bbae76a3bib3","doi-asserted-by":"publisher","first-page":"13727","DOI":"10.1109\/TCYB.2021.3121080","type":"journal-article","article-title":"A learning-based stable servo control strategy using broad learning system applied for microrobotic control","volume":"52","author":"Xu","year":"2021","journal-title":"IEEE Trans. Cybern."},{"key":"bbae76a3bib4","doi-asserted-by":"publisher","DOI":"10.1016\/j.progpolymsci.2024.101829","type":"journal-article","article-title":"Liquid crystal elastomers for actuation: a perspective on structure-property-function relation","volume":"153","author":"Jiang","year":"2024","journal-title":"Prog. Polym. Sci."},{"key":"bbae76a3bib5","doi-asserted-by":"publisher","first-page":"eabg3677","DOI":"10.1126\/sciadv.abg3677","type":"journal-article","article-title":"Digital light processing of liquid crystal elastomers for self-sensing artificial muscles","volume":"7","author":"Li","year":"2021","journal-title":"Sci. Adv."},{"key":"bbae76a3bib6","doi-asserted-by":"publisher","first-page":"eabe7577","DOI":"10.1126\/scirobotics.abe7577","type":"journal-article","article-title":"Biohybrid soft robots with self-stimulating skeletons","volume":"6","author":"Guix","year":"2021","journal-title":"Sci. Robot."},{"key":"bbae76a3bib7","doi-asserted-by":"publisher","DOI":"10.1002\/adhm.202002105","type":"journal-article","article-title":"Functionalized elastomers for intrinsically soft and biointegrated electronics","volume":"10","author":"Shim","year":"2021","journal-title":"Adv. Healthc. Mater."},{"key":"bbae76a3bib8","doi-asserted-by":"publisher","first-page":"2875","DOI":"10.1109\/TRO.2022.3157147","type":"journal-article","article-title":"Independent control strategy of multiple magnetic flexible millirobots for position control and path following","volume":"38","author":"Xu","year":"2022","journal-title":"IEEE Trans. Robot."},{"key":"bbae76a3bib9","doi-asserted-by":"publisher","first-page":"254","DOI":"10.3390\/gels11040254","type":"journal-article","article-title":"Hydrogel-based continuum soft robots","volume":"11","author":"Wang","year":"2025","journal-title":"Gels"},{"key":"bbae76a3bib10","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202211918","type":"journal-article","article-title":"3D printing of small\u2010scale soft robots with programmable magnetization","volume":"33","author":"Ansari","year":"2023","journal-title":"Adv. Funct. Mater."},{"key":"bbae76a3bib11","doi-asserted-by":"publisher","first-page":"1881","DOI":"10.3390\/mi13111881","type":"journal-article","article-title":"A review of electrically driven soft actuators for soft robotics","volume":"13","author":"Ma","year":"2022","journal-title":"Micromachines"},{"key":"bbae76a3bib12","doi-asserted-by":"publisher","DOI":"10.1016\/j.cemconres.2022.106772","type":"journal-article","article-title":"Additive manufacturing using mobile robots: opportunities and challenges for building construction","volume":"158","author":"D\u00f6rfler","year":"2022","journal-title":"Cem. Concr. Res."},{"key":"bbae76a3bib13","doi-asserted-by":"publisher","first-page":"40","DOI":"10.1007\/s40820-023-01261-9","type":"journal-article","article-title":"Untethered micro\/nanorobots for remote sensing toward intelligent platform","volume":"16","author":"Wang","year":"2024","journal-title":"Nano. Micro Lett."},{"key":"bbae76a3bib14","doi-asserted-by":"publisher","first-page":"eads4411","DOI":"10.1126\/sciadv.ads4411","type":"journal-article","article-title":"Machining swarf formation\u2013inspired fabrication of ferrofluidic helical miniature robots with multimodal locomotion capability","volume":"11","author":"Fan","year":"2025","journal-title":"Sci. Adv."},{"key":"bbae76a3bib15","doi-asserted-by":"publisher","DOI":"10.1002\/smll.202412599","type":"journal-article","article-title":"Magnetic turtle-like robot with biomimetic movements through programmable magnetic-assisted 3D","volume":"21","author":"Zheng","year":"2025","journal-title":"Small"},{"key":"bbae76a3bib16","doi-asserted-by":"publisher","first-page":"E6007","DOI":"10.1073\/pnas.1608193113","type":"journal-article","article-title":"Shape-programmable magnetic soft matter","volume":"113","author":"Lum","year":"2016","journal-title":"Proc. Natl Acad. Sci. US.A"},{"key":"bbae76a3bib17","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-024-54773-2","type":"journal-article","article-title":"Programmable spatial magnetization stereolithographic printing of biomimetic soft machines with thin-walled structures","volume":"15","author":"Meng","year":"2024","journal-title":"Nat. Commun."},{"key":"bbae76a3bib18","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202305925","type":"journal-article","article-title":"3D motion manipulation for micro\u2010and nanomachines: progress and future directions","volume":"36","author":"Huang","year":"2024","journal-title":"Adv. Mater."},{"key":"bbae76a3bib19","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202005137","type":"journal-article","article-title":"Magnetic actuation methods in bio\/soft robotics","volume":"31","author":"Ebrahimi","year":"2021","journal-title":"Adv. Funct. Mater."},{"key":"bbae76a3bib20","doi-asserted-by":"publisher","DOI":"10.1088\/2399-7532\/abcb0c","type":"journal-article","article-title":"Multifunctional magnetic soft composites: a review","volume":"3","author":"Wu","year":"2020","journal-title":"Multifunct. Mater."},{"key":"bbae76a3bib21","doi-asserted-by":"publisher","DOI":"10.1016\/j.cjme.2025.100032","type":"journal-article","article-title":"Recent progress and challenges of key technologies in robotic assembly chinese","volume":"39","author":"Qin","year":"2025","journal-title":"J Mech Eng"},{"key":"bbae76a3bib22","doi-asserted-by":"publisher","first-page":"eade6135","DOI":"10.1126\/sciadv.ade6135","type":"journal-article","article-title":"Programmable aniso-electrodeposited modular hydrogel microrobots","volume":"8","author":"Zheng","year":"2022","journal-title":"Sci. Adv."},{"key":"bbae76a3bib23","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2022.e11415","type":"journal-article","article-title":"Shape programmable magnetic pixel soft robot","volume":"8","author":"Zhao","year":"2022","journal-title":"Heliyon"},{"key":"bbae76a3bib24","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymssp.2025.112815","type":"journal-article","article-title":"CBi-AM: a fusion model for predicting inverse nonlinear dynamics of magnetorheo-logical elastomer isolator","volume":"234","author":"Zhu","year":"2025","journal-title":"Mech. Syst. Signal Process."},{"key":"bbae76a3bib25","doi-asserted-by":"publisher","first-page":"2146","DOI":"10.1177\/1045389x231167797","type":"journal-article","article-title":"4D printing of hard magnetic soft materials based on NdFeB particles","volume":"34","author":"Xu","year":"2023","journal-title":"J. Intell. Mater. Syst. Struct."},{"key":"bbae76a3bib26","doi-asserted-by":"publisher","first-page":"1","DOI":"10.48550\/arXiv.1907.03146","type":"journal-article","article-title":"A review of robot learning for manipulation: challenges, representations, and algorithms","volume":"22","author":"Kroemer","year":"2021","journal-title":"J. Mach. Learn. Res."},{"key":"bbae76a3bib27","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202105146","type":"journal-article","article-title":"Biodegradable elastomers and gels for elastic electronics","volume":"9","author":"Chen","year":"2022","journal-title":"Adv. Sci."},{"key":"bbae76a3bib28","doi-asserted-by":"publisher","first-page":"3796","DOI":"10.3390\/molecules27123796","type":"journal-article","article-title":"Magnetic self-healing composites: synthesis and applications","volume":"27","author":"Cerdan","year":"2022","journal-title":"Molecules"},{"key":"bbae76a3bib29","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202200898","type":"journal-article","article-title":"3D printing ultraflexible magnetic actuators via screw extrusion method","volume":"9","author":"Cao","year":"2022","journal-title":"Adv. Sci."},{"key":"bbae76a3bib30","doi-asserted-by":"publisher","first-page":"5317","DOI":"10.1021\/acs.chemrev.1c00481","type":"journal-article","article-title":"Magnetic soft materials and robots","volume":"122","author":"Kim","year":"2022","journal-title":"Chem. Rev."},{"key":"bbae76a3bib31","doi-asserted-by":"publisher","DOI":"10.1002\/adhm.202000869","type":"journal-article","article-title":"Magnetic resonance guided navigation of untethered microgrippers","volume":"10","author":"Ghosh","year":"2021","journal-title":"Adv. Healthc. Mater."},{"key":"bbae76a3bib32","doi-asserted-by":"publisher","first-page":"4999","DOI":"10.1021\/acs.chemrev.0c01234","type":"journal-article","article-title":"Magnetically driven micro and nanorobots","volume":"121","author":"Zhou","year":"2021","journal-title":"Chem. Rev."},{"key":"bbae76a3bib33","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2025.165814","type":"journal-article","article-title":"A review and perspective of magnetic-controlled microbots for medical applications","volume":"520","author":"Yang","year":"2025","journal-title":"Chem. Eng. J."},{"key":"bbae76a3bib34","doi-asserted-by":"publisher","first-page":"4397","DOI":"10.1002\/adfm.201400275","type":"journal-article","article-title":"Three\u2010dimensional programmable assembly by untethered magnetic robotic micro\u2010grippers","volume":"24","author":"Diller","year":"2014","journal-title":"Adv. Funct. Mater."},{"key":"bbae76a3bib35","doi-asserted-by":"publisher","DOI":"10.1002\/adem.202301771","type":"journal-article","article-title":"Flexible grippers with programmable three\u2010dimensional magnetization and motions","volume":"26","author":"Fan","year":"2024","journal-title":"Adv. Eng. Mater."},{"key":"bbae76a3bib36","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0187441","type":"journal-article","article-title":"Design, characterization and control of thermally-responsive and magnetically-actuated micro-grippers at the air-water interface","volume":"12","author":"Ongaro","year":"2017","journal-title":"PLoS One"},{"key":"bbae76a3bib37","doi-asserted-by":"publisher","first-page":"835","DOI":"10.1109\/LRA.2017.2657879","type":"journal-article","article-title":"Reliable grasping of three-dimensional untethered mobile magnetic microgripper for autonomous pick-and-place","volume":"2","author":"Zhang","year":"2017","journal-title":"IEEE Robot. Autom. Lett."}],"container-title":["Bioinspiration &amp; Biomimetics"],"original-title":[],"link":[{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3","content-type":"text\/html","content-version":"am","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T08:24:45Z","timestamp":1781771085000},"score":1,"resource":{"primary":{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-3190\/ae76a3"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,18]]},"references-count":37,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2026,6,18]]},"published-print":{"date-parts":[[2026,8,31]]}},"URL":"https:\/\/doi.org\/10.1088\/1748-3190\/ae76a3","relation":{},"ISSN":["1748-3182","1748-3190"],"issn-type":[{"value":"1748-3182","type":"print"},{"value":"1748-3190","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,18]]},"assertion":[{"value":"A U-shaped robotic gripper with displacement and deformation controlled by programmable magnetic fields","name":"article_title","label":"Article Title"},{"value":"Bioinspiration & Biomimetics","name":"journal_title","label":"Journal Title"},{"value":"paper","name":"article_type","label":"Article Type"},{"value":"\u00a9 2026 IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2025-11-04","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-06-01","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-06-18","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}