{"id":1319,"date":"2025-04-11T13:49:37","date_gmt":"2025-04-11T04:49:37","guid":{"rendered":"https:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=1319"},"modified":"2026-05-15T15:27:12","modified_gmt":"2026-05-15T06:27:12","slug":"%e3%83%a1%e3%83%b3%e3%83%90%e3%83%bc%ef%bd%9c%e6%88%b8%e7%94%b0%e4%b8%80%e5%be%b9","status":"publish","type":"page","link":"https:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=1319","title":{"rendered":"\u30e1\u30f3\u30d0\u30fc\uff5c\u6238\u7530\u4e00\u5fb9"},"content":{"rendered":"<h3>PNIPAm-co-AAc\u30cf\u30a4\u30c9\u30ed\u30b2\u30eb\u3092\u7528\u3044\u305f\u6eb6\u6db2\u4e2d\u3067\u306e\u74b0\u5883\u5fdc\u7b54\u6027\u81ea\u8d70\u30ed\u30dc\u30c3\u30c8\u306e\u69cb\u7bc9<br \/>\n(Development of Environmentally Responsive Self-Propelling Robots in Solution Using PNIPAm-co-AAc Hydrogels)<\/h3>\n<p>\u8fd1\u5e74\uff0c\u5316\u5b66\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u76f4\u63a5\u5229\u7528\u3057\u3066\u81ea\u5f8b\u99c6\u52d5\u3059\u308b\u30ed\u30dc\u30c3\u30c8\u306b\u95a2\u3059\u308b\u7814\u7a76\u304c\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u308b\uff0e\u6eb6\u6db2\u4e2d\u3067\u81ea\u5f8b\u99c6\u52d5\u3092\u793a\u3059\u73fe\u8c61\u306e\u4ee3\u8868\u4f8b\u3068\u3057\u3066\uff0c\u81ea\u8d70\u6db2\u6ef4\u304c\u6319\u3052\u3089\u308c\u308b\u304c\uff0c\u305d\u306e\u81ea\u8d70\u539f\u7406\u306b\u8d77\u56e0\u3057\u3066\uff0c\u6eb6\u6db2\u3068\u306e\u53cd\u5fdc\u91cf<br \/>\n\u3084\uff0c\u904b\u52d5\u65b9\u5411\u306e\u5236\u5fa1\u304c\u5fdc\u7528\u306b\u5411\u3051\u305f\u8ab2\u984c\u3068\u306a\u3063\u3066\u3044\u308b\uff0e\u305d\u3053\u3067\u672c\u7814\u7a76\u3067\u306f\uff0cpH\u74b0\u5883\u306b\u5fdc\u7b54\u3057\u3066\u81a8\u6f64\u30fb\u53ce\u7e2e\u6319\u52d5\u3092\u793aPNIPAm-co-AAc \u30cf\u30a4\u30c9\u30ed\u30b2\u30eb\u306b\uff0c\u81ea\u8d70\u6db2\u6ef4\u306e\u4e00\u7a2e\u3067\u3042\u308b 1-\u30da\u30f3\u30bf\u30ce\u30fc\u30eb\u3092\u5185\u5305\u3059\u308b\u624b\u6cd5\u3092\u63d0\u6848\u3059\u308b\uff0e\u305d\u308c\u306b\u3088\u3063\u3066\uff0c\u5916\u90e8\u74b0\u5883\u306b\u5fdc\u7b54\u3057\u305f\u30b2\u30eb\u306e\u81a8\u6f64\u306b\u4f34\u3044\uff0c\u81ea\u8d70\u6db2\u6ef4\u3092\u653e\u51fa\u3059\u308b\u3053\u3068\u3067\uff0c\u81ea\u7acb\u99c6\u52d5\u3092\u793a\u3059\u30b2\u30eb\u30ed\u30dc\u30c3\u30c8\u306e\u69cb\u7bc9\u3092\u76ee\u6307\u3059\uff0e\u307e\u305f\u3001\u4f5c\u88fd\u3057\u305f\u30b2\u30eb\u30ed\u30dc\u30c3\u30c8\u306b\u5bfe\u3057\u3066\u53cd\u5fdc\u754c\u9762\u3092\u5236\u9650\u3059\u308b\u5916\u9aa8\u683c\u30d5\u30ec\u30fc\u30e0\u3092\u88c5\u7740\u3059\u308b\u3053\u3068\u3067\uff0c\u81ea\u8d70\u65b9\u5411\u306e\u5236\u5fa1\u6027\u306b\u3064\u3044\u3066\u3082\u691c\u8a0e\u3059\u308b\uff0e <\/p>\n<p>In recent years, autonomous robots that directly utilize chemical energy have attracted significant attention. Self-propelled droplets are a representative example of such systems exhibiting autonomous motion in solution. However, due to their underlying propulsion mechanisms, controlling the reaction rate with the surrounding solution and the direction of motion remain major challenges for practical applications. In this study, we propose a method to encapsulate 1-pentanol\u2014a type of self-propelled droplet\u2014into PNIPAm-co-AAc hydrogels, which exhibit pH-responsive swelling and deswelling behavior. By leveraging the swelling of the gel in response to the external environment to release the encapsulated 1-pentanol, we aim to construct a gel robot capable of autonomous propulsion. Furthermore, we investigate the controllability of the propulsion direction by equipping the fabricated gel robot with an exoskeleton frame that restricts the reaction interface.<br \/>\n&nbsp;<\/p>\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/www.sawada.phys.waseda.ac.jp\/wp-content\/uploads\/Movie_S1-video-converter.com_.mp4\"><\/video><\/figure>\n\n\n\n<p>Self-propulsion behavior of the emulsion gel robot for approximately 1 minute immediately after immersion (5\u00d7 speed).<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/www.sawada.phys.waseda.ac.jp\/wp-content\/uploads\/Movie_S2-video-converter.com_.mp4\"><\/video><\/figure>\n\n\n\n<p>Self-propulsion behavior of the emulsion gel robot for approximately 150 seconds after stabilization (5\u00d7 speed).<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/www.sawada.phys.waseda.ac.jp\/wp-content\/uploads\/Movie_S3-video-converter.com_.mp4\"><\/video><\/figure>\n\n\n\n<p>Self-propulsion behavior of the porous organogel robot for approximately 7 minutes (10\u00d7 speed).<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/www.sawada.phys.waseda.ac.jp\/wp-content\/uploads\/Movie_S4-1-1.mp4\"><\/video><\/figure>\n\n\n\n<p>Self-propulsion behavior of the 1-pentanol solvent-based organogel robot for approximately 100 seconds (5\u00d7 speed).<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/www.sawada.phys.waseda.ac.jp\/wp-content\/uploads\/Movie_S5-video-converter.com_.mp4\"><\/video><\/figure>\n\n\n\n<p>Self-propulsion behavior of the porous organogel robot with an exoskeleton (1\u00d7 speed).<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/www.sawada.phys.waseda.ac.jp\/wp-content\/uploads\/Adobe-Express-Movie_S6.mp4\"><\/video><\/figure>\n\n\n\n<p>Self-propulsion behavior of the 1-pentanol solvent-based organogel with an exoskeleton (5\u00d7 speed).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PNIPAm-co-AAc\u30cf\u30a4\u30c9\u30ed\u30b2\u30eb\u3092\u7528\u3044\u305f\u6eb6\u6db2\u4e2d\u3067\u306e\u74b0\u5883\u5fdc\u7b54\u6027\u81ea\u8d70\u30ed\u30dc\u30c3\u30c8\u306e&#8230; <a class=\"more-link\" href=\"https:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=1319\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/1319"}],"collection":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1319"}],"version-history":[{"count":15,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/1319\/revisions"}],"predecessor-version":[{"id":1505,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/1319\/revisions\/1505"}],"wp:attachment":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}