| 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
Characterization of poly(sodium styrene sulfonate) thin films grafted from functionalized titanium surfaces
Abstract
<p>Biointegration of titanium implants in the body is controlled by their surface properties. Improving surface properties by coating with a bioactive polymer is a promising approach to improve the biological performance of titanium implants. To optimize the grafting processes, it is important to fully understand the composition and structure of the modified surfaces. The main focus of this study is to provide a detailed, multitechnique characterization of a bioactive poly(sodium styrene sulfonate) (pNaSS) thin film grafted from titanium surfaces via a two-step procedure. Thin titanium films (∼50 nm thick with an average surface roughness of 0.9 ± 0.2 nm) prepared by evaporation onto silicon wafers were used as smooth model substrates. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) showed that the titanium film was covered with a TiO(2) layer that was at least 10 nm thick and contained hydroxyl groups present at the outermost surface. These hydroxyl groups were first modified with a 3-methacryloxypropyltrimethoxysilane (MPS) cross-linker. XPS and ToF-SIMS showed that a monolayer of the MPS molecules was successfully attached onto the titanium surfaces. The pNaSS film was grafted from the MPS-modified titanium through atom transfer radical polymerization. Again, XPS and ToF-SIMS were used to verify that the pNaSS molecules were successfully grafted onto the modified surfaces. Atomic force microscopy analysis showed that the film was smooth and uniformly covered the surface. Fourier transform infrared spectroscopy indicated that an ordered array of grafted NaSS molecules were present on the titanium surfaces. Sum frequency generation vibration spectroscopy and near edge X-ray absorption fine structure spectroscopy illustrated that the NaSS molecules were grafted onto the titanium surface with a substantial degree of orientational order in the styrene rings.</p>