Cluster monolayer-protected

Templeton AC, Wuelfing MP, Murray RW. Monolayer protected cluster molecules. Acc Chem Res 2000 33 27-36. 

The chemical reactivity of nanoparticle surfaces, presents interesting additional opportunities for evaluating nanoparticle surface composition. Some noble metal particles (Pd and Au in particular) can be extracted from the PAMAM dendrimer interiors into organic solution with long-chain thiols [37]. The resulting nanoparticles, referred to as Monolayer Protected Clusters (MPCs), retain the size distributions and spectroscopic characteristics of the original DENs and allow for recycling the expensive dendrimer [16]. 

As mentioned above, the electroactive NPs discussed here differ from typical semiconductor NPs or capped noble-metal NPs (e.g., Au-monolayer-protected clusters) in an important way. Specifically, the reduction or oxidation of the metal centers in... 

Templeton, A.C., Wuelfing, M.P., and Murray, R.W. (2000) Monolayer protected cluster molecules. Accounts of Chemical Research, 33, 27-36. 

Murray and co-workers apply the term monolayer protected clusters (MFCs) to metal clusters of diameter less than 10nm stabilized by a monolayer of alkanethiolates and other thiolates. According to a model, the potential of a MFC in solution is related to its charge by... 

Menard, L. D., Gao,S. P, et al. Sub-Nanometer Au Monolayer-Protected Clusters Exhibiting Molecule-like Electronic Behavior Quantitative High-Angle Annular Dark-Field Scanning Transmission Electron Microscopy and Electrochemical Characterization of Clusters with Precise Atomic Stoichiometry."The Journal of Physical Chemistry B,110(26), 12874-12883 (2006). 

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