| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Weidner, Tobias
Aarhus University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2022Peptide Orientation at Emulsion Nanointerfaces Dramatically Different from Flat Surfacescitations
- 2021Windowless detection geometry for sum frequency scattering spectroscopy in the C-D and amide i regionscitations
- 2021Insects use lubricants to minimize friction and wear in leg jointscitations
- 2020Role of Surface Chemistry in the Superhydrophobicity of the Springtail Orchesella cincta (Insecta:Collembola)citations
- 2020Lasalocid Acid Antibiotic at a Membrane Surface Probed by Sum Frequency Generation Spectroscopycitations
- 2018Structure of von Willebrand factor A1 on polystyrene determined from experimental and calculated sum frequency generation spectracitations
- 2018The surface chemistry of iron oxide nanocrystalscitations
- 2018Effect of Internal Heteroatoms on Level Alignment at Metal/Molecular Monolayer/Si Interfacescitations
- 2016Kinetically Controlled Sequential Growth of Surface-Grafted Chiral Supramolecular Copolymerscitations
- 2016Differential surface activation of the A1 domain of von Willebrand factorcitations
- 2016Functionalization of nanocrystalline diamond films with phthalocyaninescitations
- 2015Multiscale Effects of Interfacial Polymer Confinement in Silica Nanocompositescitations
- 2013Effects of self-assembled monolayer structural order, surface homogeneity and surface energy on pentacene morphology and thin film transistor device performancecitations
- 2013SFG analysis of surface bound proteinscitations
- 2013Covalently attached organic monolayers onto silicon carbide from 1-alkynescitations
- 2013Molecular suction padscitations
- 2012Probing the orientation of electrostatically immobilized protein G B1 by time-of-flight secondary ion spectrometry, sum frequency generation, and near-edge X-ray adsorption fine structure spectroscopycitations
- 2012Zwitterionic dithiocarboxylates derived from N-heterocyclic carbenescitations
- 2012Bottom-contact small-molecule n-type organic field effect transistors achieved via simultaneous modification of electrode and dielectric surfacescitations
- 2012Solid-state densification of spun-cast self-assembled monolayers for use in ultra-thin hybrid dielectricscitations
- 2011Simultaneous modification of bottom-contact electrode and dielectric surfaces for organic thin-film transistors through single-component spin-cast monolayerscitations
- 2011Probing albumin adsorption onto calcium phosphates by x-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometrycitations
- 2011Characterization of poly(sodium styrene sulfonate) thin films grafted from functionalized titanium surfacescitations
- 2010Probing the orientation of surface-immobilized protein G B1 using ToF-SIMS, sum frequency generation, and NEXAFS spectroscopycitations
- 2010Multi-technique Characterization of Adsorbed Peptide and Protein Orientationcitations
- 2010Structure and Order of Phosphonic Acid-Based Self-Assembled Monolayers on Si(100)citations
- 2010Effect of the phenyl ring orientation in the polystyrene buffer layer on the performance of pentacene thin-film transistorscitations
- 2009Self-Assembly of a Pyridine-Terminated Thiol Monolayer on Au(111)citations
- 2009Amide or Aminecitations
Places of action
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article
Amide or Amine
Abstract
<p>Sum frequency generation (SFG) vibrational spectroscopy has been employed in biomaterials research and protein adsorption studies with growing success in recent years. A number of studies focusing on understanding SFG spectra of proteins and peptides at different interfaces have laid the foundation for future, more complex studies. In many cases, a strong NH mode near 3300 cm(-1) is observed in the SFG spectra, but the relationship of this mode to the peptide structure is uncertain, since it has been assigned to either a backbone amide mode or a side chain related amine resonance. A thorough understanding of the SFG spectra of these first model systems is an important first step for future experiments. To clarify the origin of the NH SFG mode, we studied (15)N isotopically labeled 14-amino acid amphiphilic model peptides composed of lysine (K) and leucine (L) in an alpha-helical secondary structure (LKalpha14) that were adsorbed onto charged surfaces in situ at the solid-liquid interface. (15)N substitution at the terminal amine group of the lysine side chains resulted in a red-shift of the NH mode of 9 cm(-1) on SiO(2) and 13 cm(-1) on CaF(2). This clearly shows the 3300 cm(-1) NH feature is associated with side chain NH stretches and not with backbone amide modes.</p>