Stimuli‐Responsive, Shape‐Transforming Nanostructured Particles
Development of particles that change shape in response to external stimuli has been a long‐thought goal for producing bioinspired, smart materials. Herein, the temperature‐driven transformation of the shape and morphology of polymer particles composed of polystyrene‐b‐poly(4‐vinylpyridine) (PS‐b‐P4V...
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| Veröffentlicht in: | Advanced materials (Weinheim) 2017-08, Vol.29 (29), p.n/a |
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| creator | Lee, Junhyuk Ku, Kang Hee Kim, Mingoo Shin, Jae Man Han, Junghun Park, Chan Ho Yi, Gi‐Ra Jang, Se Gyu Kim, Bumjoon J. |
| description | Development of particles that change shape in response to external stimuli has been a long‐thought goal for producing bioinspired, smart materials. Herein, the temperature‐driven transformation of the shape and morphology of polymer particles composed of polystyrene‐b‐poly(4‐vinylpyridine) (PS‐b‐P4VP) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants is reported. PNIPAM acts as a temperature‐responsive surfactant with two important roles. First, PNIPAM stabilizes oil‐in‐water droplets as a P4VP‐selective surfactant, creating a nearly neutral interface between the PS and P4VP domains together with cetyltrimethylammonium bromide, a PS‐selective surfactant, to form anisotropic PS‐b‐P4VP particles (i.e., convex lenses and ellipsoids). More importantly, the temperature‐directed positioning of PNIPAM depending on its solubility determines the overall particle shape. Ellipsoidal particles are produced above the critical temperature, whereas convex lens‐shaped particles are obtained below the critical temperature. Interestingly, given that the temperature at which particle shape change occurs depends solely on the lower critical solution temperature (LCST) of the polymer surfactants, facile tuning of the transition temperature is realized by employing other PNIPAM derivatives with different LCSTs. Furthermore, reversible transformations between different shapes of PS‐b‐P4VP particles are successfully demonstrated using a solvent‐adsorption annealing with chloroform, suggesting great promise of these particles for sensing, smart coating, and drug delivery applications.
Dynamic, temperature‐driven transformation of the shape and morphology of polymer particles is demonstrated using polystyrene‐b‐poly(4‐vinylpyridine) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants. The temperature‐directed positioning of PNIPAM depending on its solubility determines both the shape and morphology of the BCP particles, suggesting great promise of these particles for use in sensing, smart coatings, and drug delivery applications. |
| doi_str_mv | 10.1002/adma.201700608 |
| format | Article |
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Dynamic, temperature‐driven transformation of the shape and morphology of polymer particles is demonstrated using polystyrene‐b‐poly(4‐vinylpyridine) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants. The temperature‐directed positioning of PNIPAM depending on its solubility determines both the shape and morphology of the BCP particles, suggesting great promise of these particles for use in sensing, smart coatings, and drug delivery applications.</description><identifier>ISSN: 0935-9648</identifier><identifier>EISSN: 1521-4095</identifier><identifier>DOI: 10.1002/adma.201700608</identifier><identifier>PMID: 28582603</identifier><language>eng</language><publisher>Germany: Wiley Subscription Services, Inc</publisher><subject>Acrylic Resins - chemistry ; Adsorption ; Biomimetics ; block copolymer particles ; Block copolymers ; Cetrimonium Compounds - chemistry ; Cetyltrimethylammonium bromide ; Chloroform ; Critical temperature ; Drug delivery systems ; Ellipsoids ; Isopropylacrylamide ; Lenses ; Materials selection ; Microscopy, Electron, Transmission ; Nanostructures - chemistry ; Particle shape ; Particle Size ; PNIPAM surfactants ; Polystyrene resins ; Polystyrenes - chemistry ; Polyvinyls - chemistry ; responsive particles ; shape‐transform ; Smart materials ; Stimuli ; Surface-Active Agents - chemistry ; Surfactants ; Temperature ; temperature‐responsiveness ; Transformations ; Transition temperature</subject><ispartof>Advanced materials (Weinheim), 2017-08, Vol.29 (29), p.n/a</ispartof><rights>2017 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.</rights><rights>2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4398-a80187b60cbb9645ab3b0152ad91bf7d53cac34014c92476500a4c2887ba9e143</citedby><cites>FETCH-LOGICAL-c4398-a80187b60cbb9645ab3b0152ad91bf7d53cac34014c92476500a4c2887ba9e143</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fadma.201700608$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fadma.201700608$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28582603$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, Junhyuk</creatorcontrib><creatorcontrib>Ku, Kang Hee</creatorcontrib><creatorcontrib>Kim, Mingoo</creatorcontrib><creatorcontrib>Shin, Jae Man</creatorcontrib><creatorcontrib>Han, Junghun</creatorcontrib><creatorcontrib>Park, Chan Ho</creatorcontrib><creatorcontrib>Yi, Gi‐Ra</creatorcontrib><creatorcontrib>Jang, Se Gyu</creatorcontrib><creatorcontrib>Kim, Bumjoon J.</creatorcontrib><title>Stimuli‐Responsive, Shape‐Transforming Nanostructured Particles</title><title>Advanced materials (Weinheim)</title><addtitle>Adv Mater</addtitle><description>Development of particles that change shape in response to external stimuli has been a long‐thought goal for producing bioinspired, smart materials. Herein, the temperature‐driven transformation of the shape and morphology of polymer particles composed of polystyrene‐b‐poly(4‐vinylpyridine) (PS‐b‐P4VP) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants is reported. PNIPAM acts as a temperature‐responsive surfactant with two important roles. First, PNIPAM stabilizes oil‐in‐water droplets as a P4VP‐selective surfactant, creating a nearly neutral interface between the PS and P4VP domains together with cetyltrimethylammonium bromide, a PS‐selective surfactant, to form anisotropic PS‐b‐P4VP particles (i.e., convex lenses and ellipsoids). More importantly, the temperature‐directed positioning of PNIPAM depending on its solubility determines the overall particle shape. Ellipsoidal particles are produced above the critical temperature, whereas convex lens‐shaped particles are obtained below the critical temperature. Interestingly, given that the temperature at which particle shape change occurs depends solely on the lower critical solution temperature (LCST) of the polymer surfactants, facile tuning of the transition temperature is realized by employing other PNIPAM derivatives with different LCSTs. Furthermore, reversible transformations between different shapes of PS‐b‐P4VP particles are successfully demonstrated using a solvent‐adsorption annealing with chloroform, suggesting great promise of these particles for sensing, smart coating, and drug delivery applications.
Dynamic, temperature‐driven transformation of the shape and morphology of polymer particles is demonstrated using polystyrene‐b‐poly(4‐vinylpyridine) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants. The temperature‐directed positioning of PNIPAM depending on its solubility determines both the shape and morphology of the BCP particles, suggesting great promise of these particles for use in sensing, smart coatings, and drug delivery applications.</description><subject>Acrylic Resins - chemistry</subject><subject>Adsorption</subject><subject>Biomimetics</subject><subject>block copolymer particles</subject><subject>Block copolymers</subject><subject>Cetrimonium Compounds - chemistry</subject><subject>Cetyltrimethylammonium bromide</subject><subject>Chloroform</subject><subject>Critical temperature</subject><subject>Drug delivery systems</subject><subject>Ellipsoids</subject><subject>Isopropylacrylamide</subject><subject>Lenses</subject><subject>Materials selection</subject><subject>Microscopy, Electron, Transmission</subject><subject>Nanostructures - chemistry</subject><subject>Particle shape</subject><subject>Particle Size</subject><subject>PNIPAM surfactants</subject><subject>Polystyrene resins</subject><subject>Polystyrenes - chemistry</subject><subject>Polyvinyls - chemistry</subject><subject>responsive particles</subject><subject>shape‐transform</subject><subject>Smart materials</subject><subject>Stimuli</subject><subject>Surface-Active Agents - chemistry</subject><subject>Surfactants</subject><subject>Temperature</subject><subject>temperature‐responsiveness</subject><subject>Transformations</subject><subject>Transition temperature</subject><issn>0935-9648</issn><issn>1521-4095</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtKAzEUhoMotla3LqXgxoVTTzKZNFmWeoV6wdb1kMlkNGVuJjNKdz6Cz-iTmNJawY2rA4fvfPznR-gQwwADkDOZFnJAAA8BGPAt1MURwQEFEW2jLogwCgSjvIP2nJsDgGDAdlGH8IgTBmEXjaeNKdrcfH18PmpXV6Uzb_q0P32Rtfa7mZWlyypbmPK5fyfLyjW2VU1rddp_kLYxKtduH-1kMnf6YD176OnyYja-Dib3Vzfj0SRQNBQ8kBwwHyYMVJL4UJFMwgR8XJkKnGTDNAqVVCEFTJUgdMgiAEkV4f5GCo1p2EMnK29tq9dWuyYujFM6z2Wpq9bFWACjzD-GPXr8B51XrS19Ok8RKjDlYeSpwYpStnLO6iyurSmkXcQY4mW98bLeeFOvPzhaa9uk0OkG_-nTA2IFvJtcL_7RxaPz29Gv_BvFkIdv</recordid><startdate>201708</startdate><enddate>201708</enddate><creator>Lee, Junhyuk</creator><creator>Ku, Kang Hee</creator><creator>Kim, Mingoo</creator><creator>Shin, Jae Man</creator><creator>Han, Junghun</creator><creator>Park, Chan Ho</creator><creator>Yi, Gi‐Ra</creator><creator>Jang, Se Gyu</creator><creator>Kim, Bumjoon J.</creator><general>Wiley Subscription Services, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope></search><sort><creationdate>201708</creationdate><title>Stimuli‐Responsive, Shape‐Transforming Nanostructured Particles</title><author>Lee, Junhyuk ; Ku, Kang Hee ; Kim, Mingoo ; Shin, Jae Man ; Han, Junghun ; Park, Chan Ho ; Yi, Gi‐Ra ; Jang, Se Gyu ; Kim, Bumjoon J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4398-a80187b60cbb9645ab3b0152ad91bf7d53cac34014c92476500a4c2887ba9e143</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Acrylic Resins - chemistry</topic><topic>Adsorption</topic><topic>Biomimetics</topic><topic>block copolymer particles</topic><topic>Block copolymers</topic><topic>Cetrimonium Compounds - chemistry</topic><topic>Cetyltrimethylammonium bromide</topic><topic>Chloroform</topic><topic>Critical temperature</topic><topic>Drug delivery systems</topic><topic>Ellipsoids</topic><topic>Isopropylacrylamide</topic><topic>Lenses</topic><topic>Materials selection</topic><topic>Microscopy, Electron, Transmission</topic><topic>Nanostructures - chemistry</topic><topic>Particle shape</topic><topic>Particle Size</topic><topic>PNIPAM surfactants</topic><topic>Polystyrene resins</topic><topic>Polystyrenes - chemistry</topic><topic>Polyvinyls - chemistry</topic><topic>responsive particles</topic><topic>shape‐transform</topic><topic>Smart materials</topic><topic>Stimuli</topic><topic>Surface-Active Agents - chemistry</topic><topic>Surfactants</topic><topic>Temperature</topic><topic>temperature‐responsiveness</topic><topic>Transformations</topic><topic>Transition temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Junhyuk</creatorcontrib><creatorcontrib>Ku, Kang Hee</creatorcontrib><creatorcontrib>Kim, Mingoo</creatorcontrib><creatorcontrib>Shin, Jae Man</creatorcontrib><creatorcontrib>Han, Junghun</creatorcontrib><creatorcontrib>Park, Chan Ho</creatorcontrib><creatorcontrib>Yi, Gi‐Ra</creatorcontrib><creatorcontrib>Jang, Se Gyu</creatorcontrib><creatorcontrib>Kim, Bumjoon J.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><jtitle>Advanced materials (Weinheim)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Junhyuk</au><au>Ku, Kang Hee</au><au>Kim, Mingoo</au><au>Shin, Jae Man</au><au>Han, Junghun</au><au>Park, Chan Ho</au><au>Yi, Gi‐Ra</au><au>Jang, Se Gyu</au><au>Kim, Bumjoon J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stimuli‐Responsive, Shape‐Transforming Nanostructured Particles</atitle><jtitle>Advanced materials (Weinheim)</jtitle><addtitle>Adv Mater</addtitle><date>2017-08</date><risdate>2017</risdate><volume>29</volume><issue>29</issue><epage>n/a</epage><issn>0935-9648</issn><eissn>1521-4095</eissn><abstract>Development of particles that change shape in response to external stimuli has been a long‐thought goal for producing bioinspired, smart materials. Herein, the temperature‐driven transformation of the shape and morphology of polymer particles composed of polystyrene‐b‐poly(4‐vinylpyridine) (PS‐b‐P4VP) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants is reported. PNIPAM acts as a temperature‐responsive surfactant with two important roles. First, PNIPAM stabilizes oil‐in‐water droplets as a P4VP‐selective surfactant, creating a nearly neutral interface between the PS and P4VP domains together with cetyltrimethylammonium bromide, a PS‐selective surfactant, to form anisotropic PS‐b‐P4VP particles (i.e., convex lenses and ellipsoids). More importantly, the temperature‐directed positioning of PNIPAM depending on its solubility determines the overall particle shape. Ellipsoidal particles are produced above the critical temperature, whereas convex lens‐shaped particles are obtained below the critical temperature. Interestingly, given that the temperature at which particle shape change occurs depends solely on the lower critical solution temperature (LCST) of the polymer surfactants, facile tuning of the transition temperature is realized by employing other PNIPAM derivatives with different LCSTs. Furthermore, reversible transformations between different shapes of PS‐b‐P4VP particles are successfully demonstrated using a solvent‐adsorption annealing with chloroform, suggesting great promise of these particles for sensing, smart coating, and drug delivery applications.
Dynamic, temperature‐driven transformation of the shape and morphology of polymer particles is demonstrated using polystyrene‐b‐poly(4‐vinylpyridine) block copolymers (BCPs) and temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAM) surfactants. The temperature‐directed positioning of PNIPAM depending on its solubility determines both the shape and morphology of the BCP particles, suggesting great promise of these particles for use in sensing, smart coatings, and drug delivery applications.</abstract><cop>Germany</cop><pub>Wiley Subscription Services, Inc</pub><pmid>28582603</pmid><doi>10.1002/adma.201700608</doi><tpages>8</tpages></addata></record> |
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| subjects | Acrylic Resins - chemistry Adsorption Biomimetics block copolymer particles Block copolymers Cetrimonium Compounds - chemistry Cetyltrimethylammonium bromide Chloroform Critical temperature Drug delivery systems Ellipsoids Isopropylacrylamide Lenses Materials selection Microscopy, Electron, Transmission Nanostructures - chemistry Particle shape Particle Size PNIPAM surfactants Polystyrene resins Polystyrenes - chemistry Polyvinyls - chemistry responsive particles shape‐transform Smart materials Stimuli Surface-Active Agents - chemistry Surfactants Temperature temperature‐responsiveness Transformations Transition temperature |
| title | Stimuli‐Responsive, Shape‐Transforming Nanostructured Particles |
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