The quantitative assembly and disassembly of a new type of dynamic covalent nanoparticle (NP) building block is reported. In situ spectroscopic characterization reveals constitutionally adaptive NP-bound monolayers of boronate esters. Ditopic linker molecules are used to produce covalently connected AuNP assemblies, displaying open dendritic morphologies, and which, despite being linked by cova...

Dealloyed Pt core-shell nanoparticles constitute the most active and stable bimetallic oxygen reduction catalysts for low-temperature fuel cells. Here, we review recent advances on their preparation, structural characterization, and electrocatalytic performance. Starting with bimetallic metal overlayer model systems, for which we illustrate fundamental principles of the ORR activity enhancement...

The Journal of Physical Chemistry C is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article Optical Emission and Energy Transfer in Nanoparticle#Nanorod Assemblies: Potential Energy Pump System for Negative Refractive Index Materials Ashish Agarwal, George D. Lilly, Alexander O. Govorov, and Nicholas A. Kotov J. Phys. Chem. C, 2008, 112 (47), 1831...

Controlling Plasmon Coupling in Biomolecule-Linked Metal Nanoparticle Assemblies by David S. Sebba Department of Mechanical Engineering Materials Science Duke University Date:_______________________ Approved: ___________________________ Anne A. Lazarides, Supervisor ___________________________ Thomas H. LaBean ___________________________ David R. Smith ___________________________ Chris Dwyer __...

We developed a new strategy to detect protein-DNA binding through surface enhanced resonance Raman scattering (SERRS). Silver-plated DNA and gold nanoparticle assemblies were used to identify sequence-specific and concentration-dependent binding of a DNA cytosine-C5-methyltransferase and the eukaryotic transcriptional regulator, TATA binding protein. Proteins were identified through specific Ra...

We introduce a many-body theory for thermal far-field emission of dipolar dielectric and metallic nanoparticles in the vicinity substrate within framework fluctuational electrodynamics. Our theoretical model includes possibility to define temperatures each nanoparticle, temperature, temperature background radiation, separately. To demonstrate versatility our method, we apply it an exemplary way...

organizing metal nanoparticles into symmetrically and spatially well defined architectures. The impetus for this work is two-fold. First, metal nanoparticle aggregates display rich optical behaviors that are distinctly different from a corresponding collection of individual particles or the extended solid. A range of fundamentally interesting new materials can thus be constructed from a single ...

Biomimetic nanoparticles are known to serve as nanoscale adjuvants, enzyme mimics and amyloid fibrillation inhibitors. Their further development requires better understanding of their interactions with proteins. The abundant knowledge about protein–protein can a guide for designing protein–nanoparticle assemblies, but the chemical biological inputs used in computational packages not applicable ...

Here, a comprehensive study on the synthesis, characterization, and reactivity of grain-boundary (GB)-rich noble metal nanoparticle (NP) assemblies is presented. A facile scalable synthesis Pt, Pd, Au, Ag, Rh NP developed, in which NPs are predominantly connected via Σ3 (111) twin GBs, forming network. Driven by water electrolysis, random collisions oriented attachment colloidal solution lead t...