Poly from gold

Deposition of Pb has also been carried out at modified gold electrodes. The films of 3-mercaptopropane sulfonate on poly-crystaUine gold electrodes were prepared from an acidic solution. At such electrodes,... 

Figure 9.8. UV-Vis spectra of a drawn poly(ethylene)-gold nanocomposite in polarized light at different angles (p representing the angle between the polarization plane of the incident light and the drawing direction of the nanocomposite. The angle cp varies from 0° to 90° in steps of 10°.

Figure 4.4 Three-stage switching of poly[2-(methacryloyloxy)ethylphosphate] as reported for brushes grown by A TRP from gold substrates [6J.

Fig. 1.14 Arrays made from gold CDs. Tapping mode AFM images of (a) exposed bare gold CD-R surface (b) Anti IL-6 capture antibody attached to the gold CD-R surface, c Amplification strategy using streptavidin poly-HRP. The streptavidin poly-HRP attaches to biotinylated antihuman E -6 detection antibody bound to IL-6 on the sensor before the measurement step. Reproduced with permission from Ref. [114] copyright Royal Society of Chemistry, 2011...

Figure 12.27 Low-shear viscosity of (a) polymethylmethacrylate in good solvents DMF(D) and THF(O), and the Theta solvent water dioxane (0), using results from Gold, et al. (57), and (b) 1.65 (0.0) and 0.44 ( ) MDa poly-a-methylstyrene in n-butylbenzylphthalate (Theta solvent 0, ) and a-chloronaphthalene (good solvent Q), using data of Isono and Nagasawa (58).

There are a small number of reports regarding the employment of poly-NHC metal complexes in medicinal chemistry with metals different from gold and silver (Fig. 44). 

Figure Bl.19.30. Height and friction images of a spin-cast polystyrene-poly(methyl methacrylate) blend obtained with (a) gold and (b) silica probes under perfluorodecalin. Note the reversal of frictional contrast and the high spatial resolution. (Taken from [142], figure 7.)...

This method is especially valid for the preparation of gold NPs mixed with activated carbon, which are active and stable for the selective oxidation of hydrocarbons and alcohols in water. Over activated carbon gold could not be directly deposited as NPs by using the techniques described above, such as DP and even by GG. Gold colloids with mean diameters from 2.5 to lOnm stabilized by poly vinyl alcohol or poly vinyl p5rrolidone are used. 

The Stober method can be used to form core-shell silica nanoparticles when a presynthesized core is suspended in a water-alcohol mixture. The core can be a silica nanoparticle or other types of nanomaterials [46, 47]. If the core is a silica nanoparticle, before adding silicon alkoxide precursors, the hydroxysilicates hydrolyzed from precursors condense by the hydroxide groups on the surface of the silica cores to form additional layers. If the core is a colloid, surface modification of the core might be necessary. For example, a gold colloid core was modified by poly (vinylpyrrolidone) prior to a silica layer coating [46]. 

Fig. 14. Hyperbranched polymer grafts prepared on a mercaptoundecanoic acid (MUA) self assembled monolayer confined to a gold substrate. PAAM-c-PAA represents a random copolymer of poly(acrylamide) and poly(acrylic acid) prepared from the poly(acrylic acid) carboxylic acid groups and an amine [129]...

A large number of examples of redox polyelectrolyte monolayers have been reported [42[. Anson described the adsorption of poly(acrylic acid) onto glassy carbon with electrostatic binding of Ru(NH3)6 and Co(NH3)6 ions from solution [43]. Finklea [44] adsorbed poly(4-vinyl-I-methyl-pyridinium methylsulfate) on self-assembled mercapto-undecanoic self-assembled monolayer (SAM) on gold electrodes to... 

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