Monolayer matrix

A monolayer matrix factor QAB can be defined such that ... 

I. Vikholm, W.M. Albers, H. Valimaki, and H. Helle, In situ quartz crystal microbalance monitoring of Fab-fragment binding to hnker lipids in a phosphatidylcholine monolayer matrix application to immunosensors. Thin Solid Films 327, 643-646 (1998). 

Detection limit 0.1 °h monolayer Matrix effects some... 

Figure 10.1 A prototype multilayered organic thin film as a molecular electronic device. The layers were deposited on a glass substrate (which may be coated with a transparent metal electrode). The first layer contains an electron donor, carbocyanine (D), dispersed in a fatty acid monolayer matrix. The second and third layers contain quinquethienyl as molecular wires (Wj and W2). The fourth layer (A) consists of a monolayer of bipyridinum as the electron acceptor. The energy diagram is shown below. A device like this imitates the photosynthetic reaction center (biomimetic device). (Reproduced from [8].)...

Figure 19 Networks formed from TSB35, l,3,5-tris[(E)-2-(3,5-didecyloxyphenyl)-ethenyl]-benzene. (a) Molecular structures of the three compounds, (b) Graphical representation of the resulting network, (c) STM image of the monolayer matrix, (d) after addition of coronene, and (e) after addition of hexabenzocoronene. (Reproduced from Ref. 71. American Chemical Society, 2006.)...

Maji S, Kundu S, Pinto LFV, Godinho MH, Khan AH, Acharya S (2013) Improved mechanical stability of acetoxypropyl cellulose upon blending with ultranarrow PbS nanowires in Langmuir monolayer matrix. Langmuir 29(49) 15231-15239 Mays JW (1988) Solution properties and chain stiffness of cyanoethyl hydroxypropyl cellulose. Macromolecules 21(11) 3179-3183... 

Different types of mimetic systems of biological membranes including vesicles (spherical phospholipid bilayers), LB monolayers, hybrid bilayers (HBLs) and tethered lipid bilayers were used in SERS investigations. LB films are monomolecular films that can be fabricated from amphiphiles at the water-air interface and transferred to a SERS solid substrate (such as island film). For SERS studies, the target molecule was treated as a dopant in a monolayer matrix formed for example by arachidic acid or phospholipids. Aroca and co-workers applied the LB technique to detect SERRS signal firom a variety of chromophores such as several perylene derivatives and RH6G even in SM level in some cases (Aroca 2006). HBLs are monolayers of phospholipids incorporated into SAM of long-chain thiols such as... 

In these equations, a, the monolayer thickness of the matrix material comes from... 

Generation of nanoparticles under Langmuir monolayers and within LB films arose from earlier efforts to form nanoparticles within reverse micelles, microemulsions, and vesicles [89]. Semiconductor nanoparticles formed in surfactant media have been explored as photocatalytic systems [90]. One motivation for placing nanoparticles within the organic matrix of a LB film is to construct a superlattice of nanoparticles such that the optical properties of the nanoparticles associated with quantum confinement are preserved. If mono-layers of capped nanoparticles are transferred, a nanoparticle superlattice can be con-... 

Further modification of the above nanostructures is useful for obtaining new functional materials. Thirdly, we apply the dopant-induced laser ablation technique to site-selectively doped thin diblock copolymer films with spheres (sea-island), cylinders (hole-network), and wormlike structures on the nanoscale [19, 20]. When the dye-doped component parts are ablated away by laser light, the films are modified selectively. Concerning the laser ablation of diblock copolymer films, Lengl et al. carried out the excimer laser ablation of diblock copolymer monolayer films, forming spherical micelles loaded with an Au salt to obtain metallic Au nanodots [21]. They used the laser ablation to remove the polymer matrix. In our experiment, however, the laser ablation is used to remove one component of block copolymers. Thereby, we can expect to obtain new functional materials with novel nanostmctures. 

The deposition conditions should be optimized to obtain approximately equal amounts of matrix and spreader-bar molecules on the surface [18,21]. Analysis of monolayers by near-edge X-ray absorption fine-structure spectroscopy. 

The sole purpose of the filter support and any applied extracellular matrix is simply to provide a surface for cell attachment and thus to provide mechanical support to the monolayer. However, the filter and matrix also can act as serial barriers to solute movement after diffusion through the cell monolayer. The important variables are the chemical composition of the filter, porosity, pore size, and overall thickness. In some cases, pore tortuosity also can be important. It is desired that the filter, with or without an added matrix, provide a favorable surface to which the cells can attach. However, in some cases these properties can also result in an attractive surface for nonspecific adsorption of the transported solute. In these instances, the appearance of the solute in the receiver compartment of the diffusion cell will not be a true reflection of its movement across the mono-layer. Such problems must be examined on a case-by-case basis. 

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