Nanotubes from asymmetrically decorated vesicles
Hydrodynamic nanotubeextrusion is used to characterize chitosan-decorated vesicles, which are more robust to pH and salt shocks and exhibit specific behavior under osmotic pressure if compared to their bare homologues. The vesicle attached to a micro-rod is submitted to a flow. Above a threshold vel...
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| Veröffentlicht in: | Soft matter 2011-01, Vol.7 (3), p.946-951 |
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| container_title | Soft matter |
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| creator | Kremer, S Campillo, C Quemeneur, F Rinaudo, M Pépin-Donat, B Brochard-Wyart, F |
| description | Hydrodynamic nanotubeextrusion is used to characterize chitosan-decorated vesicles, which are more robust to pH and salt shocks and exhibit specific behavior under osmotic pressure if compared to their bare homologues. The vesicle attached to a micro-rod is submitted to a flow. Above a threshold velocity, we observe the extrusion of a lipidic nanotube. We study how it grows and relaxes when the flow is stopped. We find that extrusion forces for decorated vesicles are weaker than for bare vesicles. We interpret these results using a model that introduces the spontaneous curvature due to asymmetric adsorption of chitosan on the external leaflet of the bilayer, which allows us to calculate the stationary length of the tube
versus
the flow velocity and to estimate the spontaneous curvature
c
0
.
Hydrodynamic nanotube extrusion experiments performed on lipid vesicles asymmetrically decorated by chitosan are modelled considering membrane spontaneous curvature. |
| doi_str_mv | 10.1039/c0sm00212g |
| format | Article |
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versus
the flow velocity and to estimate the spontaneous curvature
c
0
.
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versus
the flow velocity and to estimate the spontaneous curvature
c
0
.
Hydrodynamic nanotube extrusion experiments performed on lipid vesicles asymmetrically decorated by chitosan are modelled considering membrane spontaneous curvature.</description><subject>Asymmetry</subject><subject>Curvature</subject><subject>Decoration</subject><subject>Extrusion</subject><subject>Mathematical analysis</subject><subject>Nanotubes</subject><subject>Spontaneous</subject><subject>Vesicles</subject><issn>1744-683X</issn><issn>1744-6848</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp90D1PwzAQBmALgUQpLOxIYUIgBez4I85YVaVFKjDQgc067DMEJU2x00r996QElY3pTvc-uuEl5JzRW0Z5cWdprCnNWPZ-QAYsFyJVWujD_c5fj8lJjJ-Uci2YGhD6BMumXb9hTHxo6gTitq6xDaWFqtomDm0ToEWXbDCWtsJ4So48VBHPfueQLO4ni_EsnT9PH8ajeWq5kG3qERR4YZ3QVmWyAClUjt3mJUqpBYATKJnLswLAMuZzXSjUVOausBT5kFz3bz-gMqtQ1hC2poHSzEZzs7vRjuaM6Q3r7FVvV6H5WmNsTV1Gi1UFS2zW0RSK64J1upM3vbShiTGg379m1OwKNGP68vhT4LTDFz0O0e7dX8FdfvlfblbO828t3ne4</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>Kremer, S</creator><creator>Campillo, C</creator><creator>Quemeneur, F</creator><creator>Rinaudo, M</creator><creator>Pépin-Donat, B</creator><creator>Brochard-Wyart, F</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-4698-8643</orcidid><orcidid>https://orcid.org/0000-0001-8588-5087</orcidid></search><sort><creationdate>20110101</creationdate><title>Nanotubes from asymmetrically decorated vesicles</title><author>Kremer, S ; Campillo, C ; Quemeneur, F ; Rinaudo, M ; Pépin-Donat, B ; Brochard-Wyart, F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c345t-fea6af4cd48c6259a5467e625f5e5584aad4e51d729aac11f7896e8057d9c0e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Asymmetry</topic><topic>Curvature</topic><topic>Decoration</topic><topic>Extrusion</topic><topic>Mathematical analysis</topic><topic>Nanotubes</topic><topic>Spontaneous</topic><topic>Vesicles</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kremer, S</creatorcontrib><creatorcontrib>Campillo, C</creatorcontrib><creatorcontrib>Quemeneur, F</creatorcontrib><creatorcontrib>Rinaudo, M</creatorcontrib><creatorcontrib>Pépin-Donat, B</creatorcontrib><creatorcontrib>Brochard-Wyart, F</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Soft matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kremer, S</au><au>Campillo, C</au><au>Quemeneur, F</au><au>Rinaudo, M</au><au>Pépin-Donat, B</au><au>Brochard-Wyart, F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nanotubes from asymmetrically decorated vesicles</atitle><jtitle>Soft matter</jtitle><date>2011-01-01</date><risdate>2011</risdate><volume>7</volume><issue>3</issue><spage>946</spage><epage>951</epage><pages>946-951</pages><issn>1744-683X</issn><eissn>1744-6848</eissn><abstract>Hydrodynamic nanotubeextrusion is used to characterize chitosan-decorated vesicles, which are more robust to pH and salt shocks and exhibit specific behavior under osmotic pressure if compared to their bare homologues. The vesicle attached to a micro-rod is submitted to a flow. Above a threshold velocity, we observe the extrusion of a lipidic nanotube. We study how it grows and relaxes when the flow is stopped. We find that extrusion forces for decorated vesicles are weaker than for bare vesicles. We interpret these results using a model that introduces the spontaneous curvature due to asymmetric adsorption of chitosan on the external leaflet of the bilayer, which allows us to calculate the stationary length of the tube
versus
the flow velocity and to estimate the spontaneous curvature
c
0
.
Hydrodynamic nanotube extrusion experiments performed on lipid vesicles asymmetrically decorated by chitosan are modelled considering membrane spontaneous curvature.</abstract><pub>Royal Society of Chemistry</pub><doi>10.1039/c0sm00212g</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0003-4698-8643</orcidid><orcidid>https://orcid.org/0000-0001-8588-5087</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1744-683X |
| ispartof | Soft matter, 2011-01, Vol.7 (3), p.946-951 |
| issn | 1744-683X 1744-6848 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Asymmetry Curvature Decoration Extrusion Mathematical analysis Nanotubes Spontaneous Vesicles |
| title | Nanotubes from asymmetrically decorated vesicles |
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