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However, stimulating the behavior of soft robots as well as reprogramming them and implementing reversible control in them remains a challenge. Herein, a method for fabricating soft, bio\u2010inspired, untethered, infrared\u2010driven actuators that exhibit reversible and reprogrammable behaviors is proposed. By exploiting the mismatch in the infrared\u2010driven thermomechanical responses of the two active materials constituting the bilayered soft actuator, reversible actuation can be realized. More importantly, the shape of robots based on this actuator can be reprogrammed such that they exhibit bio\u2010inspired locomotion specific to the environment. For instance, a soft robot based on the actuator can be made to exhibit several bio\u2010inspired functions, such as crawling, rolling, and object manipulation, in a complex environment. Furthermore, reversible and reprogrammable actuation can be achieved in untethered soft bio\u2010inspired robots using the bilayer of infrared\u2010actuated thermoresponsive materials, suggesting that other materials with similar properties can also be adopted in a similar method. The proposed method allows for the integration of different active materials toward the realization of infrared\u2010driven, untethered reversible, and reprogrammable actuators for soft bio\u2010inspired robots.<\/jats:p><\/jats:sec>","DOI":"10.1002\/aisy.202000146","type":"journal-article","created":{"date-parts":[[2020,11,20]],"date-time":"2020-11-20T16:51:31Z","timestamp":1605891091000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Reprogrammable Untethered Actuator for Soft Bio\u2010Inspired Robots"],"prefix":"10.1002","volume":"3","author":[{"given":"Runhuai","family":"Yang","sequence":"first","affiliation":[{"name":"School of Biomedical Engineering Anhui Medical University  230032 Hefei China"},{"name":"Research and Engineering Center of Biomedical Materials Anhui Medical University  Hefei 230032 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miao","family":"Jin","sequence":"additional","affiliation":[{"name":"School of Biomedical Engineering Anhui Medical University  230032 Hefei China"},{"name":"Research and Engineering Center of Biomedical Materials Anhui Medical University  Hefei 230032 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Minmin","family":"Jin","sequence":"additional","affiliation":[{"name":"School of Biomedical Engineering Anhui Medical University  230032 Hefei China"},{"name":"Research and Engineering Center of Biomedical Materials Anhui Medical University  Hefei 230032 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haisheng","family":"Qian","sequence":"additional","affiliation":[{"name":"School of Biomedical Engineering Anhui Medical University  230032 Hefei China"},{"name":"Research and Engineering Center of Biomedical Materials Anhui Medical University  Hefei 230032 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qian","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Genetics School of Life Science Anhui Medical University  230032 Hefei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guoqing","family":"Jin","sequence":"additional","affiliation":[{"name":"Robotics and Microsystems Center School of Mechanical and Electric Engineering Soochow University  Suzhou 215006 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7118-7704","authenticated-orcid":false,"given":"Shiwu","family":"Zhang","sequence":"additional","affiliation":[{"name":"CAS Key Laboratory of Mechanical Behaviour and Design of Materials Department of Precision Machinery and Precision Instrumentation University of Science and Technology of China  Hefei 230026 Anhui China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,11,20]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1126\/scirobotics.aah3690"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.9b05517"},{"key":"e_1_2_7_4_1","author":"Tolley M. 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