Publications de Sabine Abb | EPFL Graph Search

Molecular sensitised probe for amino acid recognition within peptide sequences

Klaus Kern, Stephan Rauschenbach, Uta Schlickum, Daniel Pablo Rosenblatt, Sabine Abb, Sebastian Koslowski

The combination of low-temperature scanning tunnelling microscopy with a mass-selective electro-spray ion-beam deposition established the investigation of large biomolecules at nanometer and sub-nanometer scale. Due to complex architecture and conformation ...

Nature Portfolio2023

Catalyzing Bond-Dissociation in Graphene via Alkali-Iodide Molecules

Klaus Kern, Stephan Rauschenbach, Sabine Abb, Sven Alexander Szilagyi, Hannah Julia Ochner

Atomic design of a 2D-material such as graphene can be substantially influenced by etching, deliberately induced in a transmission electron microscope. It is achieved primarily by overcoming the threshold energy for defect formation by controlling the kine ...

WILEY-V C H VERLAG GMBH2021

Low-energy electron holography imaging of conformational variability of single-antibody molecules from electrospray ion beam deposition

Klaus Kern, Stephan Rauschenbach, Sabine Abb, Sven Alexander Szilagyi, Hannah Julia Ochner

Imaging of proteins at the single-molecule level can reveal conformational variability, which is essential for the understanding of biomolecules. To this end, a biologically relevant state of the sample must be retained during both sample preparation and i ...

National Academy of Sciences2021

Identifying the origin of local flexibility in a carbohydrate polymer

Klaus Kern, Stephan Rauschenbach, Sabine Abb

Correlating the structures and properties of a polymer to its monomer sequence is key to understanding how its higher hierarchy structures are formed and how its macroscopic material properties emerge. Carbohydrate polymers, such as cellulose and chitin, a ...

National Academy of Sciences2021

Exploring the Molecular Conformation Space by Soft Molecule- Surface Collision

Klaus Kern, Stephan Rauschenbach, Sabine Abb

Biomolecules function by adopting multiple conformations. Such dynamics are governed by the conformation landscape whose study requires characterization of the ground and excited conformation states. Here, the conformational landscape of a molecule is samp ...

AMER CHEMICAL SOC2020

Carbohydrate Self-Assembly at Surfaces: STM Imaging of Sucrose Conformation and Ordering on Cu(100)

Klaus Kern, Stephan Rauschenbach, Sabine Abb

Saccharides are ubiquitous biomolecules, but little is known about their interaction with, and assembly at, surfaces. By combining preparative mass spectrometry with scanning tunneling microscopy, we have been able to address the conformation and self-asse ...

Wiley-VCH Verlag GmbH2019

Chemical Analysis of Complex Surface-Adsorbed Molecules and Their Reactions by Means of Cluster-Induced Desorption/lonization Mass Spectrometry

Klaus Kern, Stephan Rauschenbach, Gordon Rinke, Sabine Abb

2018

Electron microscopy of polyoxometalate ions on graphene by electrospray ion beam deposition

Klaus Kern, Stephan Rauschenbach, Marko Burghard, Sabine Abb

2018

Molecular Imaging of Biopolymers Enabled by Electrospray-Ion Beam Deposition

Sabine Abb

Biomolecular functional complexes often serve as inspiration for the development of artificial molecular nanostructures. The functionality of the biomolecular structures is based on complex and adaptable binding motifs that have evolved over billions of ye ...

EPFL2017

Two-dimensional honeycomb network through sequence-controlled self-assembly of oligopeptides

Klaus Kern, Stephan Rauschenbach, Sabine Abb

The sequence of a peptide programs its self-assembly and hence the expression of specific properties through non-covalent interactions. A large variety of peptide nanostructures has been designed employing different aspects of these non-covalent interactio ...

Nature Publishing Group2016

Chemical Modification of Graphene via Hyperthermal Molecular Reaction

Klaus Kern, Stephan Rauschenbach, Marko Burghard, Gordon Rinke, Sabine Abb

Chemical functionalization of graphene is achieved by hyperthermal reaction with azopyridine molecular ions. The one-step, room temperature process takes place in high vacuum (10(7) mbar) using an electrospray ion beam deposition (ES-IBD) setup. For ion su ...

Amer Chemical Soc2014