Francesco Stellacci

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Related publications (214)

Regioselective placement of alkanethiolate domains on tetrahedral and octahedral gold nanocrystals

Electrostatically stabilized monolayer shells of metal-oxide cluster anions (polyoxometalates, or POMs) on the surfaces of ca. 8 nm tetrahedral and octahedral gold nanocrystals regioselectively direct water-soluble alkanethiolate ligands to the corners and ...

Royal Society of Chemistry2012

Determination of monolayer-protected gold nanoparticle ligand-shell morphology using NMR

Francesco Stellacci, Marta Mameli

It is accepted that the ligand shell morphology of nanoparticles coated with a monolayer of molecules can be partly responsible for important properties such as cell membrane penetration and wetting. When binary mixtures of molecules coat a nanoparticle, t ...

Nature Publishing Group2012

Nucleation and Island Growth of Alkanethiolate Ligand Domains on Gold Nanoparticles

Francesco Stellacci, Yue Wang

The metal oxide cluster alpha-AIW(11)O(39)(9-) (1), readily imaged by cryogenic transmission electron microscopy (cryo-TEM), is used as a diagnostic protecting anion to investigate the self-assembly of alkanethiolate monolayers on electrostatically stabili ...

American Chemical Society2012

Synthesis and Characterization of Janus Gold Nanoparticles

Francesco Stellacci, Randy Patrick Carney, Quy Ong Khac, Javier Reguera Gomez

When gold nanoparticles are coated with binary mixtures of dislike ligand molecules, separation in the ligand shell occurs; if the particles are smaller than a threshold size the separation is solely enthalpy driven leading to the spontaneous formation of ...

Wiley2012

Response to "Stripy Nanoparticles Revisited"

Francesco Stellacci

In a paper entitled "Stripy Nanoparticles Revisited", Lévy and co-workers contest the interpretation of scanning tunneling microscopy images of monolayer protected gold nanoparticles that our group has presented. We show that the two arguments they use are ...

Wiley-Blackwell2012

Ultrasensitive detection of toxic cations through changes in the tunnelling current across films of striped nanoparticles

Francesco Stellacci, Eun Seon Cho, Jiwon Kim

Although multiple methods have been developed to detect metal cations, only a few offer sensitivities below 1 pM, and many require complicated procedures and sophisticated equipment. Here, we describe a class of simple solid-state sensors for the ultrasens ...

Nature Publishing Group2012

LIGHT-MATTER INTERACTIONS Ultrastrong routes to new chemistry

Anna Fontcuberta i Morral, Francesco Stellacci

Nature Publishing Group2012

Evolution of Langmuir Film of Nanoparticles Through Successive Compression Cycles

Francesco Stellacci, Jiwon Kim

The success of nanoparticle-based devices will need reliable fabrication methods for well-defined, defect-free self-assembled structures of nanoparticles (NPs). NP self-assembly is a process governed by an interplay between many inter-particle interactions ...

2011

Effect of Composition on the Catalytic Properties of Mixed-Ligand-Coated Gold Nanoparticles

Anirban Ghosh, Francesco Stellacci, Rajiv Kumar

Wiley-VCH Verlag GmbH2011

Determination of nanoparticle size distribution together with density or molecular weight by 2D analytical ultracentrifugation

Francesco Stellacci, Randy Patrick Carney, Jiwon Kim

Nanoparticles are finding many research and industrial applications, yet their characterization remains a challenge. Their cores are often polydisperse and coated by a stabilizing shell that varies in size and composition. No single technique can character ...

Nature Research2011

Mixed-Ligand Nanoparticles as Supramolecular Receptors

Francesco Stellacci, Ying Hu

2011

Oligonucleotide Delivery by Cell-Penetrating "Striped" Nanoparticles

Francesco Stellacci, Randy Patrick Carney

Gold nanoparticles coated with homogeneous (MUS) or "striped" (MUS-OT) ligand shells can be conjugated with double or single stranded DNA, and particles with either ligand configuration effectively carry DNA into melanoma tumor cells. When endocytosis is i ...

Wiley-VCH Verlag GmbH2011

Materials science: Pleated crystals

Andreas Mortensen, Francesco Stellacci

2010

Direct mapping of the solid-liquid adhesion energy with subnanometre resolution

Francesco Stellacci, Kislon Voitchovsky

Solid-liquid interfaces play a fundamental role in surface electrochemistry(1), catalysis(2), wetting(3), self-assembly(4) and biomolecular functions(5). The interfacial energy determines many of the properties of such interfaces, including the arrangement ...

2010

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