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Nanoparticle Size by 1H NMR Spectroscopy

High-resolution solution 1H NMR spectroscopy has been used to characterize the size of Pd dendrimer-encapsulated nanoparticles (DENs). The Pd nanoparticles measured by this technique contain 55, 147, 200 or 250 atoms, and they are encapsulated within sixth-generation, hydroxyl-terminated poly(amidoamine) PAMAM dendrimers (G6-OH). ... read more

“Molecular Communication” at the Interface

Published in J.Am.Chem.Soc, 2009

Assembly of a mixture of guest-functionalized antenna and Eu3+-complexed ligand molecules in a patterned fashion onto a receptor surface provides efficient localized sensitized emission. Here we show, for the first time, the spontaneous formation of such a complex that signals its own correct assembly, by expressing sensitized lanthanide luminescence. For more information, please read the article “Expression of Sensitized Eu3+ Luminescence at a Multivalent Interface ... read more

Porous Multilayer-coated AFM tips for Dip-Pen Nanolithography

In the Journal of the American Chemical Society a new and simple method is reported for fabricating nano-porous structure-coated silicon nitride tips for DPN by using a Layer-by-Layer (LbL) technique. ... read more

Reversible Phase Transfer Quantum Dots

Reversible Phase Transfer of (CdSe/ZnS) Quantum Dots between Organic and Aqueous Solutions ... read more