Decoration covalent

T1O2 and Ce02 based supports. The surface of metal crystallites deposited on such supports is decorated with O2 even during catalytic reactions. And this O2 species is A (102 to 105) times less reactive than covalently bonded O. (Chapter 11). 

Woolfson and Mahmoud have classified the routes to preparation of decorated self-assembling peptide materials [53] as (1) co-assembly, where the functional part is already attached to a self-assembling component prior to assembly, and (2) postassembly, where a non-functionahsed self-assembled structure is modified by covalent or non-covalent means. This discussion adheres to this classification. A third route, beyond the scope of this review, is the use of structured peptides as templates for inorganic materials. Section 4.1 discusses functionalised self-assemblies formed from co-assembly-type approaches, while post-assembly modifications of self-assembled structures are considered in Sect. 4.2. 

Dendrimers with (pseudo)rotaxane-decorated periphery (Pseudo)rotaxane-terminated dendrimers with covalently-attached rod components at the periphery... 

The majority of studies have used surfactants that wrap around nanocarbons via van der Waals interactions [37]. For instance, surfactants such as sodium dodecylsulfate (SDS) are commonly used to disperse CNTs in aqueous solutions [38,39] while other surfactants, such as Pluorinc-123, are used to mechanically exfoliate graphene from graphite flakes (Fig. 5.4(a)) [40,41]. The polar head group of the surfactant can be used to further hybridize the nanocarbon via a range of covalent or noncovalent interactions [42]. For example, nanoparticles of Pt [43,44] and Pd [45] have been decorated onto SDS-wrapped MWCNTs. Similarly, Whitsitt et al. evaluated various surfactants for their ability to facilitate the deposition of Si02 NPs onto SWCNTs [46,47]. As an exam-... 

The first report on the use of pre-made Au NPs was the blending of these particles within a polystyrene matrix [120]. The study focused on the synthesis of novel gold nanoparticles (PS-Au) decorated with covalently bound thiol-capped polystyrene macromolecules (PS-SH), and their successful dispersion in a PS matrix. The Au... 

However, directionality of individual non-covalent interactions is not always needed and even non-directional forces such as the hydrophobic effect can be utilized for the preparation of interlocked structures. Cyclodextrins may serve as a first example. They are macrocycles built from a-glycosidic D-glucose subunits. While their hydrophilic, OH group-decorated surface makes them water soluble, they bear a lipophilic... 

Fluorescent and metal decorated viral nanoparticles for structural analysis Probe reactivity of carboxylates present on the solvent-exposed surface Addressability of tyrosines and a protocol for covalently stitching together adjacent subunits of the capsid Probing the addressability of CPMV and gaining structural information of the viral capsid... 

The oxidative introduction of carboxylic functions to nanotubes provides a large number of CNT-functional exploitations and permits covalent functionalization by the formation of amide and ester linkages and other carboxyl derivatives [24]. Bifunctional molecules (diamines, diols, etc.) are often utilized as linkers. More illustrative examples are nanotubes decorated with amino-functionalized dendrimers, nucleic acids, enzymes, etc., and the formation of bioconjugates of CNTs [96]. 

Reactive surfactants can covalently bind to the dispersed phase and as such have a distinct advantage over conventional surfactants that are only physically adsorbed and can be displaced from the interface by shear or phase changes with the subsequent loss of emulsion stability. Furthermore, if the substrate is coalesced to produce decorative or protective films, the desorption can result in, e.g. reduced adhesion, increased water sensitivity and modification of the hardness, barrier and optical properties of the film. 

In this Letter, we describe the important initial results obtained by using the Husigen cycloadditon reaction in the case of gold nanorods and CdSe nanocrystals to produce covalently linked assemblies. Carbon nanotubes decorated by covalently linked gold nanoparticles have also been produced by this means. 

Buhler E, Sreenivasachary N, Candau S-J, Lehn J-M (2007) Modulation of the supramolecular structure of G-quartet assemblies by dynamic covalent decoration. J Am Chem Soc 129 10058-10059... 

A high degree of hydrophobic character is an almost unique characteristic of silicon-rich or pure-silica-type microporous crystals. In contrast to the surface of crystalline or amorphous oxides decorated with coordinatively unsaturated atoms (in activated form), the silicon-rich zeolites offer a well-defined, coordinatively saturated sur ce. Such surfrces, based on the strong covalent character of the silicon-oxygen bond and the absence of hydrophilic centers, display a strong hydrophobic character unmatched by the coordinativeiy unsaturated, imperfect surfaces. Also, hydrophobic zeolite crystals have been reported to suppress the water affinity of transition metal cations contained in the zeolite pores. This property permits the adsorption of reactants such as carbon monoxide or hydrocarbons in the presence of water. 

In the organism, HA occurs in many diverse forms, circulating freely, decorated with a variety of HA-binding proteins (hyaladherins), tissue-associated, intercolated into the ECM by electrostatic or covalent binding to other matrix molecules. It comprises a major portion of the intimate glycocalyx that surrounds all cells. HA can be tethered to cell surfaces by any of a number of membrane-associated receptors. Recent evidence indicates that HA also exists within cells, though little is known of the form or function of such HA. 

In 2003, Gonzales-Gomez described a similar transformation for the decoration of the pyridazino[4,3-/z]psoralen skeleton [96]. Furocoumarins are of pharmacological interest due to their capacity to link covalently to DNA and other macromolecules upon irradiation with long-wavelength UV light. 

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