Chiral molecules on curved colloidal membranes

Abstract

Colloidal membranes, self assembled monolayers of aligned rod like molecules, offer a template for designing membranes with definite shapes and curvature, and possibly new functionalities in the future. Often the...

Controlling the shape and topology of two-component colloidal membranes

“…Next, we investigate how membrane curvature couples to the orientation of the constituent rods with respect to the surface normal ( 45 ). We imaged catenoid-like membranes that were sparsely doped with fluorescently labeled viruses ( Fig.…”

Controlling the shape and topology of two-component colloidal membranes

“…Next, we investigate how membrane curvature couples to the orientation of the constituent rods with respect to the surface normal ( 45 ). We imaged catenoid-like membranes that were sparsely doped with fluorescently labeled viruses ( Fig.…”

Deformation of membrane vesicles due to chiral surface proteins

“…The Euler-Lagrange equation for eqn (3), for a cone, is given in the Appendix (see eqn (13)). We solve the non-linear differential equation (eqn (13)) numerically, using Mathematica.…”

“…The monolayers can exhibit different shapes and curvatures depending on the experimental conditions. 12,13 While all these examples of self-assembled chiral membranes exhibit open structures with free edges, we will focus here on closed vesicles that are more constrained (by volume and area) in adjusting their shapes such that chiral interaction energy is minimized simultaneously. It has been proposed 14,15 that such chiral lipid membranes could form spherical buds of very small sizes in the order of 50 nm, although this has not been directly verified in experiments.…”

Dynamics of Microsphere Inclusions within Biomimetic Membranes Reveal Membrane Heterogeneity

“…36,41 Doping colloidal membranes with longer or shorter rods leads to rich phenomena such as liquid−liquid phase separation and generation of negative Gaussian curvatures. 41,42 The primary focus of all these studies has been in understanding the equilibrium phase behavior of colloidal membranes under varying self-assembly control parameters. However, the interactions between colloidal membranes and external entities remain largely unexamined.…”

Controlling the shape and topology of two-component colloidal membranes

“…Next, we investigate how membrane curvature couples to the orientation of the constituent rods with respect to the surface normal ( 45 ). We imaged catenoid-like membranes that were sparsely doped with fluorescently labeled viruses ( Fig.…”

Deformation of membrane vesicles due to chiral surface proteins

“…The Euler-Lagrange equation for eqn (3), for a cone, is given in the Appendix (see eqn (13)). We solve the non-linear differential equation (eqn (13)) numerically, using Mathematica.…”

“…The monolayers can exhibit different shapes and curvatures depending on the experimental conditions. 12,13 While all these examples of self-assembled chiral membranes exhibit open structures with free edges, we will focus here on closed vesicles that are more constrained (by volume and area) in adjusting their shapes such that chiral interaction energy is minimized simultaneously. It has been proposed 14,15 that such chiral lipid membranes could form spherical buds of very small sizes in the order of 50 nm, although this has not been directly verified in experiments.…”

Dynamics of Microsphere Inclusions within Biomimetic Membranes Reveal Membrane Heterogeneity

“…36,41 Doping colloidal membranes with longer or shorter rods leads to rich phenomena such as liquid−liquid phase separation and generation of negative Gaussian curvatures. 41,42 The primary focus of all these studies has been in understanding the equilibrium phase behavior of colloidal membranes under varying self-assembly control parameters. However, the interactions between colloidal membranes and external entities remain largely unexamined.…”

Controlling the shape and topology of two-component colloidal membranes

“…Next, we investigate how membrane curvature couples to the orientation of the constituent rods with respect to the surface normal ( 45 ). We imaged catenoid-like membranes that were sparsely doped with fluorescently labeled viruses ( Fig.…”

Deformation of membrane vesicles due to chiral surface proteins

“…The Euler-Lagrange equation for eqn (3), for a cone, is given in the Appendix (see eqn (13)). We solve the non-linear differential equation (eqn (13)) numerically, using Mathematica.…”

“…The monolayers can exhibit different shapes and curvatures depending on the experimental conditions. 12,13 While all these examples of self-assembled chiral membranes exhibit open structures with free edges, we will focus here on closed vesicles that are more constrained (by volume and area) in adjusting their shapes such that chiral interaction energy is minimized simultaneously. It has been proposed 14,15 that such chiral lipid membranes could form spherical buds of very small sizes in the order of 50 nm, although this has not been directly verified in experiments.…”

Dynamics of Microsphere Inclusions within Biomimetic Membranes Reveal Membrane Heterogeneity

“…36,41 Doping colloidal membranes with longer or shorter rods leads to rich phenomena such as liquid−liquid phase separation and generation of negative Gaussian curvatures. 41,42 The primary focus of all these studies has been in understanding the equilibrium phase behavior of colloidal membranes under varying self-assembly control parameters. However, the interactions between colloidal membranes and external entities remain largely unexamined.…”