دورية أكاديمية
Photoresponsive Hydrogel Microcrawlers Exploit Friction Hysteresis to Crawl by Reciprocal Actuation.
| العنوان: | Photoresponsive Hydrogel Microcrawlers Exploit Friction Hysteresis to Crawl by Reciprocal Actuation. |
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| المؤلفون: | Rehor I; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands.; Faculty of Chemical Engineering, UCT Prague, Prague, Czech Republic.; Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic., Maslen C; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands.; Faculty of Chemical Engineering, UCT Prague, Prague, Czech Republic., Moerman PG; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands., van Ravensteijn BGP; Netherlands Organization for Applied Scientific Research (TNO), Materials Solutions, Eindhoven, The Netherlands., van Alst R; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands., Groenewold J; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands.; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China., Eral HB; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands.; Process and Energy Laboratory, 3ME Faculty, TU Delft, Delft, The Netherlands., Kegel WK; Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands. |
| المصدر: | Soft robotics [Soft Robot] 2021 Feb; Vol. 8 (1), pp. 10-18. Date of Electronic Publication: 2020 Apr 22. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Mary Ann Liebert, Inc Country of Publication: United States NLM ID: 101623819 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2169-5180 (Electronic) Linking ISSN: 21695172 NLM ISO Abbreviation: Soft Robot Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: New Rochelle, NY : Mary Ann Liebert, Inc., [2014]- |
| مواضيع طبية MeSH: | Hydrogels*/chemistry , Metal Nanoparticles*, Friction ; Gold ; Locomotion |
| مستخلص: | Mimicking the locomotive abilities of living organisms on the microscale, where the downsizing of rigid parts and circuitry presents inherent problems, is a complex feat. In nature, many soft-bodied organisms (inchworm, leech) have evolved simple, yet efficient locomotion strategies in which reciprocal actuation cycles synchronize with spatiotemporal modulation of friction between their bodies and environment. We developed microscopic (∼100 μm) hydrogel crawlers that move in aqueous environment through spatiotemporal modulation of the friction between their bodies and the substrate. Thermo-responsive poly-n-isopropyl acrylamide hydrogels loaded with gold nanoparticles shrink locally and reversibly when heated photothermally with laser light. The out-of-equilibrium collapse and reswelling of the hydrogel is responsible for asymmetric changes in the friction between the actuating section of the crawler and the substrate. This friction hysteresis, together with off-centered irradiation, results in directional motion of the crawler. We developed a model that predicts the order of magnitude of the crawler motion (within 50%) and agrees with the observed experimental trends. Crawler trajectories can be controlled enabling applications of the crawler as micromanipulator that can push small cargo along a surface. |
| فهرسة مساهمة: | Keywords: PNIPAM; crawler; friction hysteresis; hydrogel; photothermal |
| المشرفين على المادة: | 0 (Hydrogels) 7440-57-5 (Gold) |
| تواريخ الأحداث: | Date Created: 20200423 Date Completed: 20220421 Latest Revision: 20220421 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1089/soro.2019.0169 |
| PMID: | 32320334 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 2169-5180 |
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| DOI: | 10.1089/soro.2019.0169 |