Self assembly, bilayers

Ying Z, Xiang-Ying S, Bin L (2009) Fluorescent recognition for single- and double-stranded oligonucleotides based on rhodamine B-modified self-assembled bilayers. Chin J Anal Chem 37 665-670... 

Another important application of this interaction is in the formation of self-assembled bilayers on silver or gold surfaces. Ebersole et al. [457] showed that avidin and streptavidin molecules will adsorb onto clean layers of Au or Ag from an aqueous solution. Such layers can then be employed to capture biotinylated compounds. These authors used this technique to attach fragments of nucleic acid derived from the herpes virus to a solid support. A more popular approach to this general problem has, however, been to start by adsorption of a suitable biotin... 

We have already argued that a self-assembled bilayer composed of equivalent surfactant "blocks" should form a homogeneous minimal surface, tracing the mid-surface of the bilayer. Within the constraints of this simple geometric model, we thus expect the formation of hyperbolic bUayers, wrapped onto three-periodic minimal surfaces of genus three or four per unit cell. 

IR ligand mode assignments (vC=0, vNH) have been proposed for [(L)Zn](C104)2 and [(L)Zn(H20)(NCCH3)](C104)2, where L = 6-R-2-pyridyl-methyl)-R, where R = NI ICO Bii and related.204 ATR-FTIR spectroscopy was used to characterise the coordination of Cd2+ to pyridine terminal groups of self-assembled bilayers.205... 

BLMs, especially self-assembled bilayer lipid membranes on solid supports (s-BLMs), first reported in 1989, have been used in the last several years as lipid bilayer-based biosensors. 

Membranes are self-assembled bilayers of amphiphilic molecules. When a protein is inserted into a membrane, the thickness of the membrane adjusts to match the thickness of the hydrophobic region of the inclusion in order to minimize the exposure of the nonpolar parts to the aqueous environment. Thus, the natural choice for a boundary condition is to define a perturbation of the membrane thickness at the interface ... 

Figure 28.18 Important modes of 2-D crosslinking polymerization in self-assembled bilayers. (A) Polymerizable units (PUs, black circle) at the end of a hydrophobic tail. Crosslinking between neighboring mono-layers is possible (B) PUs are embedded somewhere in the middle of the hydrophobic tail, which avoids any crosslinking with neighboring monolayers (C) Two PUs at different but defined positions in the hydrophobic chains, so as to allow for two independent polymerization events to occur.

Li J, Pastor KA, Shi AC, Schmid F, Zhou J (2013) Elastic properties and line tension of self-assembled bilayer membranes. Phys Rev E 88 012718 doi 10.1103/PhysRevE.88.012718... 

The LB film prepared in the dark shows temperature dependent UV-vis absorption spectra. At lower temperatures, there is an electronic interaction between the fullerene moieties in the LB film. Upon heating over 47 C, which is the subphase transition temperature of the cast films of the fullerene lipid [28, 36], the electronic interaction of the fullerene moieties is loosened. The electronic interaction between the fullerene moieties can be controlled by the phase change of the film. The fundamental property of the self-assembled bilayer membrane film is maintained in the LB film prepared in the dark, indicating that the molecular orientations of the... 

Biological membranes, called biomembranes for short, are nature s most abundant interfaces. Or, more precisely, as their matrix is made of a self-assembled bilayer of phospholipids (see Section 11.6), biomanbranes rather form interphases with interfaces at both sides of the bilayer. This is clearly pictured in the classical, generalized presentation of the membrane structure, proposed by Singer and Nicolson in the 1970s and shown in Fignre 19.1. 

Thickness. The thickness of polymersome bilayers is several times greater than that of typical phospholipid bilayers in natural membranes. Lipid bilayers have a hydrophobic core thickness that is in a very narrow range of rf 3-4 nm to be compatible with integral membrane proteins. For self-assembled bilayers of PEE-PEO vesicles, the hydrophobic core thickness increases with increasing molecular weight from d 8-21 nm (see Fig. 18) to more than 100 nm (53,151-153). The observed d scaling is t5q)ical for random coil polymers and agrees... 

Natural amphiphiles are often lipids. In this chapter, we focus on polar lipids with an amphiphilic character, such as phospholipids (see the next section for examples). The latter, together with proteins, make np cell membranes that are formed from self-assembled bilayer structures. A key feature of amphiphilic membranes in biological systems is that they are ordered and yet fluid, allowing the transport of material across them. The properties of membranes are considered in Section 4.11 of this chapter. 

Figure 11.15 Chemical structure, tandem cell device structure and proposed principle of the self-assembled bilayer recombination junction built from two conjugated polyelectrolytes (CPEs). Reprinted by permission from Macmillan Publishers Ltd Scientific Reports, ref. 109, copyright (2013).

Figure 9.14 Schematic representation of a self-assembled bilayer structure containing [60]fullerene derivatives with long alkyl chains.

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