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- W2015773763 abstract "CHEMISTRYMost polymers are synthesized by adding units to one end of a growing chain, but other architectures can be created by adding several monomer units at sites around a growing core. Dendrimers are the most ordered type of these polymers, in which each round of synthesis (or “generation”) geometrically increases the number of units added. A relatively open structure after one or two generations is converted to an almost spherical structure after about five generations. Gopidas et al. adapted a synthesis route for gold nanoparticles that assembles dendrimer “wedges” (which grow out in a limited number of directions) into a spherical structure. Polyaryl ether wedges that are linked initially via disulfide bonds react with a stabilized solution of HAuCl4 and sodium borohydride. A gold core about 2 to 3 nm in diameter forms. For low-generation number wedges (less than three), this spherical core gives the final structure more dendrimer-like properties. The fifth-generation wedges, however, still retain some openness that allows access to the gold core from solution.— PDS J. Am. Chem. Soc. 10.1021/ja029544m (2003)." @default.
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- W2015773763 date "2003-05-16" @default.
- W2015773763 modified "2023-09-24" @default.
- W2015773763 title "CHEMISTRY: Dendrimer-Coated Nanoparticles" @default.
- W2015773763 doi "https://doi.org/10.1126/science.300.5622.1057b" @default.
- W2015773763 hasPublicationYear "2003" @default.
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