In: Chemistry - A European Journal, 2013, vol. 19, no. 5, p. 1754–1761
Artificial implants and biomaterials lack the natural defense system of our body and, thus, have to be protected from bacterial adhesion and biofilm formation. In addition to the increasing number of implanted objects, the resistance of bacteria is also an important problem. Silver ions are well-known for their antimicrobial properties, yet not a lot is known about their mode of action. Silver is...
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In: Angewandte Chemie International Edition, 2013, vol. 52, no. 17, p. 4682–4685
Single-crystal to single-crystal transformations are possible by ion-exchange and transport reactions through supramolecular channels that are composed of crown ether molecules and use trihalide ions as scaffolds. Kinetic measurements of ion transport at different temperatures provide activation energy data and show that a very fast.
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In: Nanoscale, 2013, vol. 5, no. 9, p. 3723-3732
It is known that the nanoparticle–cell interaction strongly depends on the physicochemical properties of the investigated particles. In addition, medium density and viscosity influence the colloidal behaviour of nanoparticles. Here, we show how nanoparticle–protein interactions are related to the particular physicochemical characteristics of the particles, such as their colloidal stability,...
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In: Angewandte Chemie, 2013, vol. 125, no. 7, p. 1988–1992
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In: Journal of Physics B: Atomic, Molecular and Optical Physics, 2013, vol. 46, no. 4, p. 045203
In this work, we present an experimental study of dissociative excitation of CH₄ utilizing a crossed electron molecular beam experiment. Methane was excited by nearly monochromatic electrons generated by a trochoidal electron monochromator. The dissociative products were identified on the basis of the emission spectra in the ultraviolet–visible (UV/VIS) spectral range. The excitation...
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In: Physical Chemistry Chemical Physics, 2013, vol. 15, no. 1, p. 159-167
The absorption spectrum of fluorenone in zeolite L is calculated from first-principles simulations. The broadening of each band is obtained from the explicit treatment of the interactions between the chromophore and its environment in the statistical ensemble. The comparison between the simulated and measured spectra reveals the main factors affecting the spectrum of the chromophore in hydrated...
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In: Physical Chemistry Chemical Physics, 2013, vol. 15, no. 8, p. 2829-2835
This paper investigates the Jahn–Teller effect in the icosahedral cation B₈₀⁺ and compares the descent in symmetry with that in C₆₀⁺. For both cations the icosahedral ground state is a ²Hu state, which exhibits a H ⊗ (g ⊕ 2h) Jahn–Teller instability. A detailed construction of the potential energy surface of B₈₀⁺ using different DFT methods including...
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In: Mind & Language
Experiences of thought‐insertion are a first‐rank, diagnostically central symptom of schizophrenia. Schizophrenic patients who undergo such delusional mental states report being first‐personally aware of an occurrent conscious thought which is not theirs, but which belongs to an external cognitive agent. Patients seem to be right about what they are thinking but mistaken about who is doing...
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Thèse de doctorat : Université de Fribourg, 2013.
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Thèse de doctorat : Université de Fribourg, 2011 ; no. 1733.
The Greater Caucasus is Europe’s largest and highest mountain belt and results from the inversion of the Mesozoic Greater Caucasus back-arc-type basin due to the collision of Arabia and Eurasia. The orogenic processes that led to the present mountain chain started in early Tertiary, accelerated during the Plio- Pleistocene, and are still active nowadays. The Eastern Greater Caucasus (EGC) is...
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