1
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Tarrat N, Schön JC, Cortés J. Dependence of lactose adsorption on the exposed crystal facets of metals: a comparative study of gold, silver and copper. Phys Chem Chem Phys 2024; 26:21134-21146. [PMID: 39069955 DOI: 10.1039/d4cp01559b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
In this theoretical work, we investigated the adsorption of a lactose molecule on metal-based surfaces, with a focus on the influence of the nature of the metal and of the type of exposed crystal facet on the adsorbed structures and energetics. More precisely, we considered three flat crystallographic facets of three face-centered cubic metals (gold, silver, and copper). For the global exploration of the energy landscape, we employed a multi-stage procedure where high-throughput searches, using a stochastic method that performs global optimization by iterating local searches, are followed by a refinement of the most probable adsorption conformations of the molecule at the ab initio level. We predicted the optimal conformation of lactose on each of the nine metal-surface combinations, classified the many low-energy minima into possible adsorption modes, and analyzed the structural, electronic and energetic aspects of the lactose molecule on the surface, as well as their dependence on the type of metal and exposed crystal facet. We observed structural similarities between the various minimum-energy conformations of lactose in vacuum and on the surface, a rough correlation between adsorption and interaction energies of the molecule, and a small charge transfer between molecule and surface whose direction is metal-dependent. During adsorption, an electronic reorganization occurs at the metal-molecule interface only, without affecting the vacuum-pointing atoms of the lactose molecule. For all types of surfaces, lactose exhibits the weakest adsorption on silver substrates, while for each coinage metal the adsorption is strongest on the (110) crystal facet. This study demonstrates that the control of exposed facets can allow to modulate the interaction between metals and small saccharides.
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Affiliation(s)
- Nathalie Tarrat
- CEMES, Université de Toulouse, CNRS, 29 rue Jeanne Marvig, 31055 Toulouse, France.
| | - J Christian Schön
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany
| | - Juan Cortés
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
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2
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Mallada B, Villalobos F, Donoso B, Casares R, Longhi G, Mendieta-Moreno JI, Jiménez-Martín A, Haïdour A, Seepersaud R, Rajagopal L, de la Torre B, Millán A, Cuerva JM. Single-Molecule Identification of the Isomers of a Lipidic Antibody Activator. J Phys Chem Lett 2024; 15:6935-6942. [PMID: 38935930 PMCID: PMC11247479 DOI: 10.1021/acs.jpclett.4c00164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/29/2024] [Accepted: 05/03/2024] [Indexed: 06/29/2024]
Abstract
Molecular structural elucidation can be accomplished by different techniques, such as nuclear magnetic resonance or X-ray diffraction. However, the former does not give information about the three-dimensional atomic arrangement, and the latter needs crystallizable solid samples. An alternative is direct, real-space visualization of the molecules by cryogenic scanning tunneling microscopy (STM). This technique is usually limited to thermally robust molecules because an annealing step is required for sample deposition. A landmark development has been the coupling of STM with electrospray deposition (ESD), which smooths the process and widens the scope of the visualization technique. In this work, we present the on-surface characterization of air-, light-, and temperature-sensitive rhamnopolyene with relevance in molecular biology. Supported by theoretical calculations, we characterize two isomers of this flexible molecule, confirming the potential of the technique to inspect labile, non-crystallizable compounds.
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Affiliation(s)
- Benjamin Mallada
- Institute
of Physics, Czech Academy of Sciences, 16200 Prague, Czech Republic
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, 78371 Olomouc, Czech Republic
| | - Federico Villalobos
- Departamento
de Química Orgánica, Unidad de Excelencia de Química
Aplicada a la Biomedicina y Medioambiente, C. U. Fuentenueva, Universidad de Granada, 18071 Granada, Spain
| | - Beatriz Donoso
- Departamento
de Química Orgánica, Unidad de Excelencia de Química
Aplicada a la Biomedicina y Medioambiente, C. U. Fuentenueva, Universidad de Granada, 18071 Granada, Spain
| | - Raquel Casares
- Departamento
de Química Orgánica, Unidad de Excelencia de Química
Aplicada a la Biomedicina y Medioambiente, C. U. Fuentenueva, Universidad de Granada, 18071 Granada, Spain
| | - Giovanna Longhi
- Dipartimento
di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, 25121 Brescia, Italy
| | - Jesús I. Mendieta-Moreno
- Instituto
de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain
| | - Alejandro Jiménez-Martín
- Institute
of Physics, Czech Academy of Sciences, 16200 Prague, Czech Republic
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, 78371 Olomouc, Czech Republic
- Faculty
of Nuclear Sciences and Physical Engineering, Czech Technical University, 11519 Prague, Czech
Republic
| | - Ali Haïdour
- Unidad
de Resonancia Magnética Nuclear, Centro de Instrumentación
Científica, Universidad de Granada, Paseo Juan Osorio s/n, 18071 Granada, Spain
| | - Ravin Seepersaud
- Center
for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington 98109, United States
| | - Lakshmi Rajagopal
- Center
for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington 98109, United States
- Department
of Global Health, University of Washington, Seattle, Washington 98105, United States
- Department
of Pediatrics, University of Washington, Seattle, Washington 98105, United States
| | - Bruno de la Torre
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, 78371 Olomouc, Czech Republic
| | - Alba Millán
- Departamento
de Química Orgánica, Unidad de Excelencia de Química
Aplicada a la Biomedicina y Medioambiente, C. U. Fuentenueva, Universidad de Granada, 18071 Granada, Spain
| | - Juan M. Cuerva
- Departamento
de Química Orgánica, Unidad de Excelencia de Química
Aplicada a la Biomedicina y Medioambiente, C. U. Fuentenueva, Universidad de Granada, 18071 Granada, Spain
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3
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Seibel J, Anggara K, Delbianco M, Rauschenbach S. Scanning Probe Microscopy Characterization of Biomolecules enabled by Mass-Selective, Soft-landing Electrospray Ion Beam Deposition. Chemphyschem 2024:e202400419. [PMID: 38945838 DOI: 10.1002/cphc.202400419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
Scanning probe microscopy (SPM), in particular at low temperature (LT) under ultra-high vacuum (UHV) conditions, offers the possibility of real-space imaging with resolution reaching the atomic level. However, its potential for the analysis of complex biological molecules has been hampered by requirements imposed by sample preparation. Transferring molecules onto surfaces in UHV is typically accomplished by thermal sublimation in vacuum. This approach however is limited by the thermal stability of the molecules, i. e. not possible for biological molecules with low vapour pressure. Bypassing this limitation, electrospray ionisation offers an alternative method to transfer molecules from solution to the gas-phase as intact molecular ions. In soft-landing electrospray ion beam deposition (ESIBD), these molecular ions are subsequently mass-selected and gently landed on surfaces which permits large and thermally fragile molecules to be analyzed by LT-UHV SPM. In this concept, we discuss how ESIBD+SPM prepares samples of complex biological molecules at a surface, offering controls of the molecular structural integrity, three-dimensional shape, and purity. These achievements unlock the analytical potential of SPM which is showcased by imaging proteins, peptides, DNA, glycans, and conjugates of these molecules, revealing details of their connectivity, conformation, and interaction that could not be accessed by any other technique.
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Affiliation(s)
- Johannes Seibel
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber Weg 2, D-76131, Karlsruhe, Germany
| | - Kelvin Anggara
- Nanoscale Science Department, Max Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569, Stuttgart, Germany
| | - Martina Delbianco
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
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4
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Milia V, Tarrat N, Zanon C, Cortés J, Rapacioli M. Exploring Molecular Energy Landscapes by Coupling the DFTB Potential with a Tree-Based Stochastic Algorithm: Investigation of the Conformational Diversity of Phthalates. J Chem Inf Model 2024; 64:3290-3301. [PMID: 38497727 DOI: 10.1021/acs.jcim.3c01981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Exploring the global energy landscape of relatively large molecules at the quantum level is a challenging problem. In this work, we report the coupling of a nonredundant conformational space exploration method, namely, the robotics-inspired iterative global exploration and local optimization (IGLOO) algorithm, with the quantum-chemical density functional tight binding (DFTB) potential. The application of this fast and efficient computational approach to three close-sized molecules of the phthalate family (DBP, BBP, and DEHP) showed that they present different conformational landscapes. These differences have been rationalized by making use of descriptors based on distances and dihedral angles. Coulomb interactions, steric hindrance, and dispersive interactions have been found to drive the geometric properties. A strong correlation has been evidenced between the two dihedral angles describing the side-chain orientation of the phthalate molecules. Our approach identifies low-energy minima without prior knowledge of the potential energy surface, paving the way for future investigations into transition paths and states.
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Affiliation(s)
- Valentin Milia
- LAAS-CNRS, Université de Toulouse, CNRS, 31031 Toulouse, France
- Laboratoire de Chimie et Physique Quantiques LCPQ/FERMI, UMR 5626, Université de Toulouse (UPS) and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France
| | - Nathalie Tarrat
- CEMES, Université de Toulouse, CNRS, 29 Rue Jeanne Marvig, F-31055 Toulouse, France
| | | | - Juan Cortés
- LAAS-CNRS, Université de Toulouse, CNRS, 31031 Toulouse, France
| | - Mathias Rapacioli
- Laboratoire de Chimie et Physique Quantiques LCPQ/FERMI, UMR 5626, Université de Toulouse (UPS) and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France
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5
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Wu X, Borca B, Sen S, Koslowski S, Abb S, Rosenblatt DP, Gallardo A, Mendieta-Moreno JI, Nachtigall M, Jelinek P, Rauschenbach S, Kern K, Schlickum U. Molecular sensitised probe for amino acid recognition within peptide sequences. Nat Commun 2023; 14:8335. [PMID: 38097575 PMCID: PMC10721870 DOI: 10.1038/s41467-023-43844-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
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 conformational freedom, however, the chemical identification of building blocks of these biopolymers often relies on the presence of markers, extensive simulations, or is not possible at all. Here, we present a molecular probe-sensitisation approach addressing the identification of a specific amino acid within different peptides. A selective intermolecular interaction between the sensitiser attached at the tip-apex and the target amino acid on the surface induces an enhanced tunnelling conductance of one specific spectral feature, which can be mapped in spectroscopic imaging. Density functional theory calculations suggest a mechanism that relies on conformational changes of the sensitiser that are accompanied by local charge redistributions in the tunnelling junction, which, in turn, lower the tunnelling barrier at that specific part of the peptide.
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Affiliation(s)
- Xu Wu
- Max Planck Institute for Solid State Research, Stuttgart, Germany
- School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing, 100081, China
| | - Bogdana Borca
- Institute of Applied Physics and Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, 38104, Braunschweig, Germany
- National Institute of Materials Physics, 077125, Magurele, Romania
| | - Suman Sen
- Max Planck Institute for Solid State Research, Stuttgart, Germany
| | | | - Sabine Abb
- Max Planck Institute for Solid State Research, Stuttgart, Germany
| | | | - Aurelio Gallardo
- Institute of Physics of the Czech Academy of Science, Prague, Czech Republic
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | | | - Matyas Nachtigall
- Institute of Physics of the Czech Academy of Science, Prague, Czech Republic
| | - Pavel Jelinek
- Institute of Physics of the Czech Academy of Science, Prague, Czech Republic.
| | - Stephan Rauschenbach
- Max Planck Institute for Solid State Research, Stuttgart, Germany.
- Department of Chemistry, University of Oxford, Oxford, UK.
| | - Klaus Kern
- Max Planck Institute for Solid State Research, Stuttgart, Germany
- Institut de Physique, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Uta Schlickum
- Max Planck Institute for Solid State Research, Stuttgart, Germany.
- Institute of Applied Physics and Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, 38104, Braunschweig, Germany.
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6
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Seibel J, Fittolani G, Mirhosseini H, Wu X, Rauschenbach S, Anggara K, Seeberger PH, Delbianco M, Kühne TD, Schlickum U, Kern K. Visualizing Chiral Interactions in Carbohydrates Adsorbed on Au(111) by High-Resolution STM Imaging. Angew Chem Int Ed Engl 2023; 62:e202305733. [PMID: 37522820 DOI: 10.1002/anie.202305733] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/03/2023] [Accepted: 07/31/2023] [Indexed: 08/01/2023]
Abstract
Carbohydrates are the most abundant organic material on Earth and the structural "material of choice" in many living systems. Nevertheless, design and engineering of synthetic carbohydrate materials presently lag behind that for protein and nucleic acids. Bottom-up engineering of carbohydrate materials demands an atomic-level understanding of their molecular structures and interactions in condensed phases. Here, high-resolution scanning tunneling microscopy (STM) is used to visualize at submolecular resolution the three-dimensional structure of cellulose oligomers assembled on Au(1111) and the interactions that drive their assembly. The STM imaging, supported by ab initio calculations, reveals the orientation of all glycosidic bonds and pyranose rings in the oligomers, as well as details of intermolecular interactions between the oligomers. By comparing the assembly of D- and L-oligomers, these interactions are shown to be enantioselective, capable of driving spontaneous enantioseparation of cellulose chains from its unnatural enantiomer and promoting the formation of engineered carbohydrate assemblies in the condensed phases.
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Affiliation(s)
- Johannes Seibel
- Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
- Institute of Applied Physics and Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, 38104, Braunschweig, Germany
- Current address: Institute of Physical Chemistry, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Giulio Fittolani
- Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany
- Institute for Chemistry and Biochemistry, Free University Berlin, 14195, Berlin, Germany
| | - Hossein Mirhosseini
- Dynamics of Condensed Matter and Center for Sustainable Systems Design, Chair of Theoretical Chemistry, University of Paderborn, 33098, Paderborn, Germany
| | - Xu Wu
- Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
| | - Stephan Rauschenbach
- Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
- Department of Chemistry, University of Oxford, OX13TA, Oxford, UK
| | - Kelvin Anggara
- Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
| | - Peter H Seeberger
- Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany
- Institute for Chemistry and Biochemistry, Free University Berlin, 14195, Berlin, Germany
| | - Martina Delbianco
- Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany
| | - Thomas D Kühne
- Dynamics of Condensed Matter and Center for Sustainable Systems Design, Chair of Theoretical Chemistry, University of Paderborn, 33098, Paderborn, Germany
- Center for Advanced Systems Understanding (CASUS) and Helmholtz Zentrum Dresden-Rossendorf, 02826, Görlitz, Germany
| | - Uta Schlickum
- Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
- Institute of Applied Physics and Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, 38104, Braunschweig, Germany
| | - Klaus Kern
- Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
- Institut de Physique, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
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7
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Andriyevsky B, Tarrat N, Cortés J, Schön JC. Dehydrogenation versus deprotonation of disaccharide molecules in vacuum: a thorough theoretical investigation. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220436. [PMID: 36249331 PMCID: PMC9554720 DOI: 10.1098/rsos.220436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Dehydrogenation and deprotonation of sucrose and trehalose molecules in vacuum is theoretically studied by using ab initio calculations in the framework of the density functional theory. The differences in the structural, electronic, energetic and vibrational properties of dehydrogenated and deprotonated molecules are discussed, depending on the site from which the hydrogen atom or the proton has been removed. The dehydrogenated molecules are found to be stable, regardless of which hydrogen atom is removed. This contrasts with the instability of the deprotonated molecules, where break-ups or structural reorganizations of the molecule are observed in 20-30% of the cases, but only when the hydrogen atom whose proton is removed was bonded to a carbon atom. Considering the stability and possible rearrangements of the hydrogen network of the deprotonated/dehydrogenated molecule, the formation of additional hydrogen-bridge bonds compared with the nominal molecule appears to be more pronounced for the deprotonated molecules than for the dehydrogenated ones. Moreover, our calculations show that the hydrogen-transfer energy barriers are usually larger for the deprotonated molecules than for the dehydrogenated ones. Finally, compared with the nominal molecule, the vibrational frequency spectrum is shifted to lower frequencies for both the dehydrogenated and the deprotonated molecules.
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Affiliation(s)
- Bohdan Andriyevsky
- Faculty of Electronics and Computer Science, Koszalin University of Technology, Śniadeckich Street 2, 74-453 Koszalin, Poland
| | - Nathalie Tarrat
- CEMES, Université de Toulouse, CNRS, 29 rue Jeanne Marvig, 31055 Toulouse, France
| | - Juan Cortés
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
| | - Johann Christian Schön
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
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8
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Rodríguez-Galván A, Contreras-Torres FF. Scanning Tunneling Microscopy of Biological Structures: An Elusive Goal for Many Years. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3013. [PMID: 36080050 PMCID: PMC9457988 DOI: 10.3390/nano12173013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/29/2022] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
Scanning tunneling microscopy (STM) is a technique that can be used to directly observe individual biomolecules at near-molecular scale. Within this framework, STM is of crucial significance because of its role in the structural analysis, the understanding the imaging formation, and the development of relative techniques. Four decades after its invention, it is pertinent to ask how much of the early dream has come true. In this study, we aim to overview different analyses for DNA, lipids, proteins, and carbohydrates. The relevance of STM imaging is exhibited as an opportunity to assist measurements and biomolecular identification in nanobiotechnology, nanomedicine, biosensing, and other cutting-edge applications. We believe STM research is still an entire science research ecosystem for joining several areas of expertise towards a goal settlement that has been elusive for many years.
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Affiliation(s)
- Andrés Rodríguez-Galván
- Carrera de Biología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Edo. Mex., Mexico
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9
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Ran W, Walz A, Stoiber K, Knecht P, Xu H, Papageorgiou AC, Huettig A, Cortizo‐Lacalle D, Mora‐Fuentes JP, Mateo‐Alonso A, Schlichting H, Reichert J, Barth JV. Depositing Molecular Graphene Nanoribbons on Ag(111) by Electrospray Controlled Ion Beam Deposition: Self-Assembly and On-Surface Transformations. Angew Chem Int Ed Engl 2022; 61:e202111816. [PMID: 35077609 PMCID: PMC9305426 DOI: 10.1002/anie.202111816] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Indexed: 12/31/2022]
Abstract
The chemical processing of low-dimensional carbon nanostructures is crucial for their integration in future devices. Here we apply a new methodology in atomically precise engineering by combining multistep solution synthesis of N-doped molecular graphene nanoribbons (GNRs) with mass-selected ultra-high vacuum electrospray controlled ion beam deposition on surfaces and real-space visualisation by scanning tunnelling microscopy. We demonstrate how this method yields solely a controllable amount of single, otherwise unsublimable, GNRs of 2.9 nm length on a planar Ag(111) surface. This methodology allows for further processing by employing on-surface synthesis protocols and exploiting the reactivity of the substrate. Following multiple chemical transformations, the GNRs provide reactive building blocks to form extended, metal-organic coordination polymers.
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Affiliation(s)
- Wei Ran
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Andreas Walz
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Karolina Stoiber
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Peter Knecht
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Hongxiang Xu
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | | | - Annette Huettig
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Diego Cortizo‐Lacalle
- POLYMATUniversity of the Basque Country UPV/EHUAvenida de Tolosa 7220018Donostia-San SebastianSpain
| | - Juan P. Mora‐Fuentes
- POLYMATUniversity of the Basque Country UPV/EHUAvenida de Tolosa 7220018Donostia-San SebastianSpain
| | - Aurelio Mateo‐Alonso
- POLYMATUniversity of the Basque Country UPV/EHUAvenida de Tolosa 7220018Donostia-San SebastianSpain
- Ikerbasque, Basque Foundation for ScienceBilbaoSpain
| | - Hartmut Schlichting
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Joachim Reichert
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
| | - Johannes V. Barth
- Physics Department E20Technical University of MunichJames Franck Straße 185748GarchingGermany
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10
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Ran W, Walz A, Stoiber K, Knecht P, Xu H, Papageorgiou AC, Huettig A, Cortizo‐Lacalle D, Mora‐Fuentes JP, Mateo‐Alonso A, Schlichting H, Reichert J, Barth JV. Depositing Molecular Graphene Nanoribbons on Ag(111) by Electrospray Controlled Ion Beam Deposition: Self‐Assembly and On‐Surface Transformations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wei Ran
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Andreas Walz
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Karolina Stoiber
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Peter Knecht
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Hongxiang Xu
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Anthoula C. Papageorgiou
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Annette Huettig
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Diego Cortizo‐Lacalle
- POLYMAT University of the Basque Country UPV/EHU Avenida de Tolosa 72 20018 Donostia-San Sebastian Spain
| | - Juan P. Mora‐Fuentes
- POLYMAT University of the Basque Country UPV/EHU Avenida de Tolosa 72 20018 Donostia-San Sebastian Spain
| | - Aurelio Mateo‐Alonso
- POLYMAT University of the Basque Country UPV/EHU Avenida de Tolosa 72 20018 Donostia-San Sebastian Spain
- Ikerbasque, Basque Foundation for Science Bilbao Spain
| | - Hartmut Schlichting
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Joachim Reichert
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
| | - Johannes V. Barth
- Physics Department E20 Technical University of Munich James Franck Straße 1 85748 Garching Germany
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11
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Rinke G, Harnau L, Rauschenbach S. Material and Charge Transport of Large Organic Salt Clusters and Nanoparticles in Electrospray Ion Beam Deposition. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:1648-1658. [PMID: 33656859 DOI: 10.1021/jasms.0c00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrospray ion beam deposition (ES-IBD) or ion soft landing has been demonstrated as a technique suitable for processing nonvolatile molecules in vacuum under perfectly controlled conditions, an approach also desirable for the deposition of nanoparticles. Here, we present results from several approaches to generate, characterize, and deposit nanoparticle ion beams in vacuum for deposition. We focus on cluster ion beams generated by ESI of organic salt solutions. Small cluster ions of the salts appear in the mass spectra as defined peaks. In addition, we find nanoparticle-sized aggregates, appearing as a low intensity background at high m/z-ratio, and show by IBD experiments that these clusters carry the major amount of material in the ion beam. This transition from clusters to nanoparticles, and their successful deposition, shows that ES-IBD can in principle handle ion beams of very heavy and highly charged nanoparticles. In related experiments, however, we found the deposition of nanoparticles from dispersions to be of low reproducibility, due to the lack of control by mass spectrometry.
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Affiliation(s)
- Gordon Rinke
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, DE-70569 Stuttgart, Germany
| | - Ludger Harnau
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, DE-70569 Stuttgart, Germany
| | - Stephan Rauschenbach
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, DE-70569 Stuttgart, Germany
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Exploring energy landscapes at the DFTB quantum level using the threshold algorithm: the case of the anionic metal cluster Au$$_{20}^{-}$$. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02748-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Wu X, Delbianco M, Anggara K, Michnowicz T, Pardo-Vargas A, Bharate P, Sen S, Pristl M, Rauschenbach S, Schlickum U, Abb S, Seeberger PH, Kern K. Imaging single glycans. Nature 2020; 582:375-378. [DOI: 10.1038/s41586-020-2362-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 03/27/2020] [Indexed: 11/09/2022]
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