Light-Driven Formation and Rupture of Droplet Bilayers
We demonstrate the optical manipulation of nanoliter aqueous droplets containing surfactant or lipid molecules and immersed in an organic liquid using near-infrared light. The resulting emulsion droplets are manipulated using both the thermocapillary effect and convective fluid motion. Droplet-pair...
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| Veröffentlicht in: | Langmuir 2010-05, Vol.26 (9), p.6193-6200 |
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| creator | Dixit, Sanhita S Kim, Hanyoup Vasilyev, Arseny Eid, Aya Faris, Gregory W |
| description | We demonstrate the optical manipulation of nanoliter aqueous droplets containing surfactant or lipid molecules and immersed in an organic liquid using near-infrared light. The resulting emulsion droplets are manipulated using both the thermocapillary effect and convective fluid motion. Droplet-pair interactions induced in the emulsion upon optical initiation and control provide direct observations of the coalescence steps in intricate detail. Droplet−droplet adhesion (bilayer formation) is observed under several conditions. Selective bilayer rupture is also realized using the same infrared laser. The technique provides a novel approach to studying thin film drainage and interface stability in emulsion dynamics. The formation of stable lipid bilayers at the adhesion interface between interacting water droplets can provide an optical platform on which to build droplet-based lipid bilayer assays. The technique also has relevance to understanding and improving microfluidics applications by devising Petri dish-based droplet assays requiring no substrate fabrication. |
| doi_str_mv | 10.1021/la1010067 |
| format | Article |
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The resulting emulsion droplets are manipulated using both the thermocapillary effect and convective fluid motion. Droplet-pair interactions induced in the emulsion upon optical initiation and control provide direct observations of the coalescence steps in intricate detail. Droplet−droplet adhesion (bilayer formation) is observed under several conditions. Selective bilayer rupture is also realized using the same infrared laser. The technique provides a novel approach to studying thin film drainage and interface stability in emulsion dynamics. The formation of stable lipid bilayers at the adhesion interface between interacting water droplets can provide an optical platform on which to build droplet-based lipid bilayer assays. 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The resulting emulsion droplets are manipulated using both the thermocapillary effect and convective fluid motion. Droplet-pair interactions induced in the emulsion upon optical initiation and control provide direct observations of the coalescence steps in intricate detail. Droplet−droplet adhesion (bilayer formation) is observed under several conditions. Selective bilayer rupture is also realized using the same infrared laser. The technique provides a novel approach to studying thin film drainage and interface stability in emulsion dynamics. The formation of stable lipid bilayers at the adhesion interface between interacting water droplets can provide an optical platform on which to build droplet-based lipid bilayer assays. The technique also has relevance to understanding and improving microfluidics applications by devising Petri dish-based droplet assays requiring no substrate fabrication.</description><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Colloids: Surfactants and Self-Assembly, Dispersions, Emulsions, Foams</subject><subject>Emulsions. Microemulsions. Foams</subject><subject>Exact sciences and technology</subject><subject>Fatty Alcohols - chemistry</subject><subject>General and physical chemistry</subject><subject>Glycerophosphates - chemistry</subject><subject>Infrared Rays</subject><subject>Light</subject><subject>Lipid Bilayers - chemistry</subject><subject>Mineral Oil - chemistry</subject><subject>Phosphorylcholine - chemistry</subject><subject>Sodium Dodecyl Sulfate - chemistry</subject><subject>Surface physical chemistry</subject><subject>Surface-Active Agents - chemistry</subject><subject>Water - chemistry</subject><issn>0743-7463</issn><issn>1520-5827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptkMFKAzEURYMoWqsLf0BmI-Ji9CWTSSYbQatVoSCIrsNrmmhkOqnJjODfO2JtFVy9xTvcezmEHFA4pcDoWY0UKICQG2RASwZ5WTG5SQYgeZFLLoodspvSKwCogqttssOgEFQWbEDExD-_tPlV9O-2ycYhzrH1ocmwmWUP3aLtos2Cy65iWNS2zS59jR82pj2y5bBOdn95h-RpfP04us0n9zd3o4tJjiVAm6NDsA6po24KVlBwQAVXSPm0H264qpgRVEnFOVQcZ0YZyzmbWiy5mAEUQ3L-nbvopnM7M7ZpI9Z6Ef0c44cO6PXfT-Nf9HN416xSAkrVBxwvA2J462xq9dwnY-saGxu6pGVRCA4MZE-efJMmhpSidasWCvpLs15p7tnD37NW5I_XHjhaApgM1i5iY3xac0yokspqzaFJ-jV0selt_lP4Cex0j7w</recordid><startdate>20100504</startdate><enddate>20100504</enddate><creator>Dixit, Sanhita S</creator><creator>Kim, Hanyoup</creator><creator>Vasilyev, Arseny</creator><creator>Eid, Aya</creator><creator>Faris, Gregory W</creator><general>American Chemical Society</general><scope>IQODW</scope><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>7X8</scope><scope>5PM</scope></search><sort><creationdate>20100504</creationdate><title>Light-Driven Formation and Rupture of Droplet Bilayers</title><author>Dixit, Sanhita S ; Kim, Hanyoup ; Vasilyev, Arseny ; Eid, Aya ; Faris, Gregory W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a500t-afa0efa1f1fb0e610f01649a14b102c4982c6197944084adc9ce442bea546d003</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Colloids: Surfactants and Self-Assembly, Dispersions, Emulsions, Foams</topic><topic>Emulsions. Microemulsions. Foams</topic><topic>Exact sciences and technology</topic><topic>Fatty Alcohols - chemistry</topic><topic>General and physical chemistry</topic><topic>Glycerophosphates - chemistry</topic><topic>Infrared Rays</topic><topic>Light</topic><topic>Lipid Bilayers - chemistry</topic><topic>Mineral Oil - chemistry</topic><topic>Phosphorylcholine - chemistry</topic><topic>Sodium Dodecyl Sulfate - chemistry</topic><topic>Surface physical chemistry</topic><topic>Surface-Active Agents - chemistry</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dixit, Sanhita S</creatorcontrib><creatorcontrib>Kim, Hanyoup</creatorcontrib><creatorcontrib>Vasilyev, Arseny</creatorcontrib><creatorcontrib>Eid, Aya</creatorcontrib><creatorcontrib>Faris, Gregory W</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Langmuir</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dixit, Sanhita S</au><au>Kim, Hanyoup</au><au>Vasilyev, Arseny</au><au>Eid, Aya</au><au>Faris, Gregory W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Light-Driven Formation and Rupture of Droplet Bilayers</atitle><jtitle>Langmuir</jtitle><addtitle>Langmuir</addtitle><date>2010-05-04</date><risdate>2010</risdate><volume>26</volume><issue>9</issue><spage>6193</spage><epage>6200</epage><pages>6193-6200</pages><issn>0743-7463</issn><eissn>1520-5827</eissn><coden>LANGD5</coden><abstract>We demonstrate the optical manipulation of nanoliter aqueous droplets containing surfactant or lipid molecules and immersed in an organic liquid using near-infrared light. The resulting emulsion droplets are manipulated using both the thermocapillary effect and convective fluid motion. Droplet-pair interactions induced in the emulsion upon optical initiation and control provide direct observations of the coalescence steps in intricate detail. Droplet−droplet adhesion (bilayer formation) is observed under several conditions. Selective bilayer rupture is also realized using the same infrared laser. The technique provides a novel approach to studying thin film drainage and interface stability in emulsion dynamics. The formation of stable lipid bilayers at the adhesion interface between interacting water droplets can provide an optical platform on which to build droplet-based lipid bilayer assays. 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| subjects | Chemistry Colloidal state and disperse state Colloids: Surfactants and Self-Assembly, Dispersions, Emulsions, Foams Emulsions. Microemulsions. Foams Exact sciences and technology Fatty Alcohols - chemistry General and physical chemistry Glycerophosphates - chemistry Infrared Rays Light Lipid Bilayers - chemistry Mineral Oil - chemistry Phosphorylcholine - chemistry Sodium Dodecyl Sulfate - chemistry Surface physical chemistry Surface-Active Agents - chemistry Water - chemistry |
| title | Light-Driven Formation and Rupture of Droplet Bilayers |
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