Curvature instability in a chiral amphiphile self-assembly

TY - JOUR

T1 - Curvature instability in a chiral amphiphile self-assembly

AU - Ziserman, Lior

AU - Mor, Amram

AU - Harries, Daniel

AU - Danino, Dganit

PY - 2011/6/9

Y1 - 2011/6/9

N2 - We present the first experimental evidence for the morphological transition from twisted to helical ribbons in amphiphile aggregates. This transition, from structures possessing negative Gaussian curvature to helically curved structures, is shown to be directly linked to ribbon width. Time-resolved cryotransmission electron microscopy images of a peptidomimetic amphiphile further capture the dynamic transformation between the two geometries along a single ribbon unit. Quantitative analysis indicates that both ribbon width and pitch grow with ribbon maturation, maintaining a constant ratio.

AB - We present the first experimental evidence for the morphological transition from twisted to helical ribbons in amphiphile aggregates. This transition, from structures possessing negative Gaussian curvature to helically curved structures, is shown to be directly linked to ribbon width. Time-resolved cryotransmission electron microscopy images of a peptidomimetic amphiphile further capture the dynamic transformation between the two geometries along a single ribbon unit. Quantitative analysis indicates that both ribbon width and pitch grow with ribbon maturation, maintaining a constant ratio.

UR - http://www.scopus.com/inward/record.url?scp=79960647436&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.106.238105

DO - 10.1103/PhysRevLett.106.238105

M3 - 文章

C2 - 21770548

AN - SCOPUS:79960647436

SN - 0031-9007

VL - 106

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 238105

ER -