Substrate monolayer

Fig. 7. Schematic description of a polysiloxane at the monolayer—substrate surface (4). The arrow points to an equatorial Si—O bond that can be connected either to another polysiloxane chain or to the surface. The dashed line on the left is a bond in a possible precursor trimer where the alkyl chains can occupy...

Selected entries from Methods in Enzymology [vol, page(s)] Activation of lipolytic enzymes by interfaces, 64, 341 model for lipase action on insoluble lipids, 64, 345 interfacial enzyme inactivation, 64, 347 reversibility of the adsorption step, 64, 347 monolayer substrates, 64, 349 kinetic models applicable to partly soluble amphiphilic lipids, 64, 353 surface dilution model, 64, 355 and 364 practical aspects, 64, 357. 

Xie, F., Baker, M. S., and Goldys, E. M. (2008). Enhanced Fluorescence Detection on Homogeneous Gold Colloid Self-Assembled Monolayer Substrates. Chem. Mater. 20 1788-1797. 

Fig. 2. Schematic crass section of a surface with an adsorbed monolayer (substrate atoms are denoted as open circles, adsorbate atoms as full circles). Springs indicate adsorbate-adsorbate interactions. Lattice gas (a), fluid (b), commensurate (c) and incommensurate (d) solid phases are shown, while case (e) indicates ordering of internal degrees of freedom of non-dissociated physisorbed molecules, such as the antiferromagnetic structure of Oi on graphite (Mclaguc and Nielsen, 1976). From Binder (1979a).

Yeo WS, Hodneland CD, Mrksich M (2001) Electroactive monolayer substrates that selectively release adherent cells. Chembiochem 2(7-8) 590-593... 

In the case of an adsorbed anisotropic monolayer at an isotropic metallic substrate, the dependence of reflectivity [Eq. (1.77)] on the optical properties of the monolayer, substrate, and ambient medium and on the angle of incidence is given [1] by... 

Although this is the most frequently encountered situation, it is also possible for monolayer deposition to occur only when the substrate enters the subphase, depending on the nature of the monolayer, substrate, subphase, and the surface pressure. These deposition modes are called X-type (monolayer transfer on the down-stroke only) and Z-type (transfer on the upstroke only). The ideal structures resulted from the deposition modes are illustrated in Fig. 9. 

One milliliter of a solution of horseradish peroxidase (POD type 11, 200Umg ) in PBS (pH7.5, activity 30mUmK ) was applied to different DSU- and/or HUT-monolayer substrates and kept for 4h at room temperature under gentle shaking. These surfaces were washed three times with a stream of PBS containing 0.1% (v/v) Tween-20 and further soaked for 20 min in the same buffer. The enzymic activity of the chemisorbed peroxidase was quantified as follows after washing (as... 

R Xie, M. S. Baker and E. M. Goldys, Enhanced fluorescence detection on homogeneous gold colloid self-assembled monolayer substrates. Chemistry of Materials, 20(5), 1788-1797 (2008). 

M. H. Zareie, X. Xu and M. B. Cortie, In situ organization of gold nanorods on mixed self-assembled-monolayer substrates. Small, 3(1), 139-145 (2007). 

K. The corresponding calculated electron density profile is shown in the inset. Fitting for the reflectivity curve was performed with MUREX118 software programmed by Dr. K. Sakurai.l ) The first minimum appeared due to a destructive interference between reflections from the top (monolayer surface) and the bottom (monolayer/substrate interface) of the NTS monolayer. This destructive interference was observed at q=1.24 nm-1 in the experimental XR curve. Then, the film thickness,... 

Figure 22 Scheme of tip-monolayer-substrate showing relevant distances in multiple conduction pathway model chain-to-chain distance dec, natural alkanethiol length dn, effective thickness as a function of tilt 0. Tunneling through chain (blue) has decay coefficienty c and through space (red) has coefficient yffg. 

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