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The role of the dielectric environment in surface-enhanced Raman scattering on the detection of a 4-nitrothiophenol monolayer
No full textNanotechnology enables the generation and characterization of novel surface-enhanced Raman scattering (SERS) substrates. In this study, we focus on the impact of the carrier material of the SERS active layer and hence the dielectric environment to the enhancement. Therefore, a self-assembled monolayer of 4-nitrothiophenol is immobilized on silver and gold particles substrates on a quartz carrier. The detection of the monolayer occurs through the quartz carrier and through air. For the former, an increase of the intensity of the SERS bands in the spectrum is observed compared to the latter. The magnitude of the increase is larger for gold than for silver. Calculations according to the theoretical model of the electromagnetic enhancement agree with our experimental data. The presented detection mode will stimulate the fabrication of novel SERS sensors. Copyright (c) 2013 John Wiley & Sons, Ltd.German Federal Ministry of Education and Research [13N11772
Review of Jin Haritaworn: Queer Lovers and Hateful Others. Regenerating Violent Times and Places.
Full text link'Zum Wohle der Kinder' - Privatwirtschaftliche Care-Organisationen im Spannungsfeld zwischen Kindeswohlförderung und ökonomischen Zwängen
No full textLändliche Pflegesettings als «Lösungen für urbane Probleme» – Einblicke in ein Forschungsprojekt zu aktuellen Entwicklungen im Bereich der Familienpflege
No full textAlleinerziehende in prekären Lebenslagen. Aktuelle empirische Forschungsergebnisse aus sozialwissenschaftlicher Perspektive
No full textCare-Arbeit als Diversifizierungsstrategie – Empirische Befunde zu Chancen und Herausforderungen für Frauen in landwirtschaftlichen Betreuungssettings
No full textSERS spectroscopic evidence for the integrity of surface-deposited self-assembled coordination cages
No full textA series of self-assembled coordination cages [pd(4)L(8)(n)] based on a phenothiazine backbone has been investigated by means of Raman spectroscopy in solution and by Surface Enhanced Raman Scattering (SERS) on a nanostructured Au surface. The experiments demonstrate that the cages can be clearly distinguished from their constituting ligands by their Raman spectroscopic signatures. Furthermore, the structural integrity of the interpenetrated coordination cages upon deposition on the Au surface was demonstrated for the first time. The signal assignment of the experimental vibrational spectra was supported by Density Functional Theory (DFT) calculations on suitable molecular models.Evonik Foundation; DFG [CL 489/2-1]; Fonds der Chemischen Industri
"Multisensorisch die unsichtbaren Dimensionen des Daseins erfassen". Ein Portrait der Assistentin am Institut für Sozialanthropologie der Universität Bern, Dr. phil. Laura Coppens
Full text linkBetween promoting child welfare and economic pressure - Empirical findings on public-private partnerships in the field of foster care in the context of current socio-political dynamics
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