Concept

Effet hydrophobe

Publications associées (94)

Is C-60 buckminsterfullerene aromatic?

C-60 does not have "superaromatic'' or even aromatic character, but is a spherically pi antiaromatic and enormously strained species. This explains its very large and positive heat of formation (610 +/- 30 kcal mol(-1)). The pi electron character of C-60 w ...

Royal Soc Chemistry2012

Characterization of Hydrophobic Forces for in Liquid Self-Assembly of Micron-Sized Functional Building Blocks

Jürgen Brugger, Laure Aeschimann, Rosario Maurizio Gullo, Loïc Jacot-Descombes

This paper presents the experimental and numerical study of hydrophobic interaction forces at nanometer scale in the scope of engineering micron-sized building blocks for self-assembly in liquid. The hydrophobic force distance relation of carbon, Teflon an ...

2011 Materials Research Society2011

Probing the Transition from Hydrophilic to Hydrophobic Solvation with Atomic Scale Resolution

Majed Chergui, Ivano Tavernelli, Paul Beaud, Thomas James Penfold, Van Thai Pham, Amal El Nahhas, Renske Marjan van der Veen, Frederico Alves Lima

Picosecond and femtosecond X-ray absorption spectroscopy is used to probe the changes of the solvent shell structure upon electron abstraction of aqueous iodide using an ultrashort laser pulse. The transient L-1,L-3 edge EXAFS at 50 ps time delay points to ...

2011

Conformational consequences of cooperative binding of a coiled-coil peptide motif to poly(N-(2-hydroxypropyl) methacrylamide) HPMA copolymers

Harm-Anton Klok

Small-angle neutron scattering and pulsed-gradient spin-echo NMR have been used to examine the solution conformation of a series of water soluble poly(N-(2-hydroxypropyl) methacrylamide) P(HPMA) co-polymer drug delivery vehicles incorporating a coiled-coil ...

Elsevier2011

Ordering Surfaces on the Nanoscale: Implications for Protein Adsorption

Francesco Stellacci

Monolayer-protected metal nanoparticles (MPMNs) are a newly discovered class of nanoparticles with an ordered, striped domain structure that can be readily manipulated by altering the ratio of the hydrophobic to hydrophilic ligands. This property makes the ...

2011

Adding diversity to ruthenium(II)-arene anticancer (RAPTA) compounds via click chemistry: the influence of hydrophobic chains

Paul Joseph Dyson, Anna Katherine Renfrew

The application of click chemistry to develop libraries of organometallic ruthenium-arene complexes with potential anticancer properties has been investigated. A series of ruthenium-imidazole-triazole complexes, with hydrophobic tails, were prepared from a ...

2011

UV-Curable Glue (NOA81) for Fabrication of a Closed Microfluidic Channel with Hydrophilic and Hydrophobic Surfaces

Nico de Rooij, Philip Wägli

Polymers like PDMS or SU-8 have become popular for microfluidic applications. We show that modifications of the surface energy are more stable on NOA81 compared to PDMS. A simple method to fabricate a closed all-polymer microfluidic channel showing both hy ...

2011

SPM Measurements of Hydrophobic Interactions

Jürgen Brugger, Alcherio Martinoli, Rosario Maurizio Gullo, Loïc Jacot-Descombes, Grégory Mermoud, Joo Yeon Kim

This poster presents the measurement of the forces involved in the hydrophobic self assembly process. More precisely the objects of interest are hydrophilic semi spheres with a gold layer on the flat side. The gold layer has been coated with dodeca thiols ...

2010

Local Effects in the X-ray Absorption Spectrum of Salt Water

Nicola Marzari, Giulia Galli Gygi

Both first-principles molecular dynamics and theoretical X-ray absorption spectroscopy have been used to investigate the aqueous solvation of cations in 0.5 M MgCl(2), CaCl(2), and NaCl solutions. We focus here on the species-specific effects that Mg(2+), ...

2010

The solvent shell structure of aqueous iodide: X-ray absorption spectroscopy and classical, hybrid QM/MM and full quantum molecular dynamics simulations

Majed Chergui, Ivano Tavernelli, Van Thai Pham, Renske Marjan van der Veen

The L-3 X-ray absorption spectrum of aqueous iodide is reported, and its EXAFS is compared to theoretical spectra reconstructed from the radial distribution function of the iodide hydration obtained from classical, hybrid Quantum Mechanics Molecular Mechan ...

Elsevier2010

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