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Mujica R, Augustine A, Pauly M, Battie Y, Decher G, Houérou VL, Felix O. Nature-Inspired Helicoidal Nanocellulose-Based Multi-Compartment Assemblies with Tunable Chiroptical Properties. Adv Mater 2024:e2401742. [PMID: 38635929 DOI: 10.1002/adma.202401742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/05/2024] [Indexed: 04/20/2024]
Abstract
Cellulose-based nanocomposites are highly appealing for the development of next-generation sustainable functional materials. Although many advances have been made in this direction, the true potential of fibrillar nanocomposites has yet to be realized because available fabrication approaches are inadequate for achieving precise structural control at the sub-micrometer scale. Here a spray-assisted alignment methodology of cellulose nanofibrils is combined with the layer-by-layer assembly into an additive manufacturing process in which the alignment direction of each cellulose layer is rationally selected to achieve thin films with a helicoidal arrangement of the nanofibrils. The helicoidal structure of the films is verified by measuring the circular dichroism (CD) of the samples. The sign and position of the structural CD peak show that the handedness and the pitch of the chiral structures can be easily tuned by deliberately selecting simple parameters, such as the number of consecutive cellulose layers sprayed in the same direction, and the angle of rotation between successive stacks of layers. To the authors' knowledge, this approach is unique as it offers the possibility to prepare complex nanocomposite architectures with various nanoscale-controlled sub-structures from different anisometric objects, which is enabling novel designs of composite films with damage-resistant and/or optical filtering functionalities.
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Affiliation(s)
- Randy Mujica
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, Strasbourg, F-67000, France
| | - Anusree Augustine
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, Strasbourg, F-67000, France
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, Strasbourg, F-67000, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yann Battie
- Université de Lorraine, LCP-A2MC, Metz, F-57078, France
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, Strasbourg, F-67000, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki, 305-0044, Japan
- International Center for Frontier Research in Chemistry, Strasbourg, F-67083, France
| | - Vincent Le Houérou
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, Strasbourg, F-67000, France
- Université de Strasbourg, CNRS, ICube UMR 7357, Illkirch, F-67412, France
| | - Olivier Felix
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, Strasbourg, F-67000, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki, 305-0044, Japan
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Muller J, Kumar C, Ghosh AK, Gupta V, Tschopp M, Le Houerou V, Fery A, Decher G, Pauly M, Felix O. Spray-Deposited Anisotropic Assemblies of Plasmonic Nanowires for Direction-Sensitive Strain Measurement. ACS Appl Mater Interfaces 2022; 14:54073-54080. [PMID: 36401833 DOI: 10.1021/acsami.2c14526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The development of nanoscale composites with hierarchical architecture and complex anisotropies enables the fabrication of new classes of devices. Stretchable strain sensors have been developed in the past for applications in various fields such as wearable electronics and soft robotics, yet the sensing capacities of most of these sensors are independent of the direction of deformation. In the present work, we report on the preparation of a direction-sensitive strain sensor using the anisotropic optical properties of a monolayer of oriented plasmonic 1D nano-objects. Grazing incidence spraying (GIS) is used for depositing a monolayer of in-plane aligned silver nanowires with a controlled density on a deformable and transparent substrate. Using the selective excitation of transverse and longitudinal localized plasmon resonance modes of silver nanowires by polarized UV-visible-NIR spectroscopy, we show that the macroscopic anisotropic properties of the monolayer upon stretching are highly dependent on the stretching direction and light polarization. Measuring the polarized optical properties of the anisotropic thin films upon stretching thus allow for retrieving both the local strain and the direction of the deformation using a simple model.
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Affiliation(s)
- Jean Muller
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, F-67000Strasbourg, France
| | - Charchit Kumar
- Université de Strasbourg, CNRS, ICube UMR 7357, F-67000Strasbourg, France
| | - Anik Kumar Ghosh
- Institute for Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069Dresden, Germany
| | - Vaibhav Gupta
- Institute for Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069Dresden, Germany
| | - Michel Tschopp
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, F-67000Strasbourg, France
| | - Vincent Le Houerou
- Université de Strasbourg, CNRS, ICube UMR 7357, F-67000Strasbourg, France
| | - Andreas Fery
- Institute for Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069Dresden, Germany
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, F-67000Strasbourg, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki305-0044, Japan
- International Center for Frontier Research in Chemistry, F-67083Strasbourg, France
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, F-67000Strasbourg, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki305-0044, Japan
| | - Olivier Felix
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, F-67000Strasbourg, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki305-0044, Japan
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Bizeau J, Adam A, Nadal C, Francius G, Siniscalco D, Pauly M, Bégin-Colin S, Mertz D. Protein sustained release from isobutyramide-grafted stellate mesoporous silica nanoparticles. Int J Pharm X 2022; 4:100130. [PMID: 36156982 PMCID: PMC9494245 DOI: 10.1016/j.ijpx.2022.100130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 10/31/2022] Open
Abstract
Proteins are great therapeutic candidates as endogenous biomolecules providing a wide range of applications. However, their delivery suffers from some limitations and specifically designed delivery systems having an efficient protein anchoring and delivery strategy are still needed. In this work, we propose to combine large pore stellate mesoporous silica (STMS) with isobutyramide (IBAM), as a “glue” molecule which has been shown promising for immobilization of various biomacromolecules at silica surface. We address here for the first time the ability of such IBAM-modified NPs to sustainably deliver proteins over a prolonged time. In this work, a quantitative loading study of proteins (serum albumin (HSA), peroxidase (HRP), immunoglobulin (IgG) and polylysine (PLL)) on STMS@IBAM is first presented using three complementary detection techniques to ensure precision and avoid protein quantification issues. The results demonstrated a high loading capacity for HSA and HRP (≥ ca. 350 μg.mg−1) but a moderate one for IgG and PLL. After evaluating the physicochemical properties of the loaded particles and their stability over scaling-up and washings, the ability of STMS@IBAM to release proteins over prolonged time was evaluated in equilibrium (static) and flow mimicking (dynamic) conditions and at different temperatures (25, 37, 45 °C). Results show not only the potential of such “glue” functionalized STMS to release proteins in a sustained way, but also the retention of the biological activity of immobilized and released HRP, used as an enzyme model. Finally, an AFM-force spectroscopy study was conducted to decipher the interactions between IBAM and proteins, showing the involvement of different interactions in the adsorption and release processes. Isobutyramide bound stellate mesoporous silica allow the immobilization of various proteins. Protein release was achieved from the nanoparticles in a sustained way in buffer. Peroxidase activity was retained whether in immobilized or released conditions. Choice of protein detection techniques was shown to be crucial. AFM-spectroscopy was used to investigate IBAM-protein intermolecular bonding.
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Wu W, Battie Y, Lemaire V, Decher G, Pauly M. Structure-Dependent Chiroptical Properties of Twisted Multilayered Silver Nanowire Assemblies. Nano Lett 2021; 21:8298-8303. [PMID: 34546067 DOI: 10.1021/acs.nanolett.1c02812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The optical properties of chiral plasmonic metasurfaces depend strongly on their architecture, in particular the orientation and spacing between the individual building blocks assembled into large arrays. However, methods to obtain chiral metamaterials with fully tunable chiroptical properties in the UV, visible, and near-infrared range are scarce. Here, we show that the chiroptical properties of silver nanowires assembled in helical nanostructures by grazing incidence spraying and Layer-by-Layer assembly can be finely tuned over a broad wavelength range using simple design principles. The angle between the oriented nanowire layers controls the intensity of the circular dichroism, reaching ellipticity values higher than 13° and g-factor values up to 1.6, while the shape of the circular dichroism spectra depends strongly on the spacing between the layers which can be tuned at the nanometer scale. The structure-dependent optical properties of the assembly are successfully modeled using a transfer matrix approach.
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Affiliation(s)
- Wenbing Wu
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
| | - Yann Battie
- Université de Lorraine, LCP-A2MC, 57000 Metz, France
| | - Vincent Lemaire
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
- International Center for Frontier Research in Chemistry, 67083 Strasbourg, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki 305-0044, Japan
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
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Hu H, Sekar S, Wu W, Battie Y, Lemaire V, Arteaga O, Poulikakos LV, Norris DJ, Giessen H, Decher G, Pauly M. Nanoscale Bouligand Multilayers: Giant Circular Dichroism of Helical Assemblies of Plasmonic 1D Nano-Objects. ACS Nano 2021; 15:13653-13661. [PMID: 34375085 DOI: 10.1021/acsnano.1c04804] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Chirality is found at all length scales in nature, and chiral metasurfaces have recently attracted attention due to their exceptional optical properties and their potential applications. Most of these metasurfaces are fabricated by top-down methods or bottom-up approaches that cannot be tuned in terms of structure and composition. By combining grazing incidence spraying of plasmonic nanowires and nanorods and Layer-by-Layer assembly, we show that nonchiral 1D nano-objects can be assembled into scalable chiral Bouligand nanostructures whose mesoscale anisotropy is controlled with simple macroscopic tools. Such multilayer helical assemblies of linearly oriented nanowires and nanorods display very high circular dichroism up to 13 000 mdeg and giant dissymmetry factors up to g ≈ 0.30 over the entire visible and near-infrared range. The chiroptical properties of the chiral multilayer stack are successfully modeled using a transfer matrix formalism based on the experimentally determined properties of each individual layer. The proposed approach can be extended to much more elaborate architectures and gives access to template-free and enantiomerically pure nanocomposites whose structure can be finely tuned through simple design principles.
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Affiliation(s)
- Hebing Hu
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
| | - Sribharani Sekar
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
| | - Wenbing Wu
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
| | - Yann Battie
- Université de Lorraine, LCP-A2MC, 57000 Metz, France
| | - Vincent Lemaire
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
| | - Oriol Arteaga
- Department Física Aplicada, Feman Group, Universitat de Barcelona, Barcelona 08028, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Barcelona 08028, Spain
| | - Lisa V Poulikakos
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - David J Norris
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - Harald Giessen
- 4th Physics Institute, University of Stuttgart, Stuttgart 70569, Germany
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
- International Center for Frontier Research in Chemistry, 67083 Strasbourg, France
- International Center for Materials Nanoarchitectonics, Tsukuba, Ibaraki 305-0044, Japan
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France
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Taner Camci M, Pauly M, Lefevre C, Bouillet C, Maaloum M, Decher G, Martel D. Polarization-dependent optical band gap energy of aligned semiconducting titanium oxide nanowire deposits. Nanoscale 2021; 13:8958-8965. [PMID: 33969852 DOI: 10.1039/d1nr01236c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thin deposits of aligned semiconducting titanium oxide and of zinc oxide nanowires are prepared by grazing incidence spraying on transparent substrates. By measuring the transmittance of linearly polarized light of these anisotropic assemblies as compared to that of randomly oriented nanowires and of spherical nanoparticles, we find that titanium oxide nanowires exhibit an orientation-dependent variation of the apparent optical band gap energy at room temperature (>100 meV), depending on the direction of the polarization of the light with respect to the direction of alignment of the nanowires.
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Affiliation(s)
- Merve Taner Camci
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
| | - Christophe Lefevre
- Université de Strasbourg, CNRS, Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, F-67000 Strasbourg, France
| | - Corinne Bouillet
- Université de Strasbourg, CNRS, Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, F-67000 Strasbourg, France
| | - Mounir Maaloum
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France. and Faculté de Chimie, Université de Strasbourg, 1 rue Blaise Pascal, F-67008 Strasbourg, France and International Center for Frontier Research in Chemistry, 8 allée Gaspard Monge, F-67083 Strasbourg, France and International Center for Materials Nanoarchitectonics, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
| | - David Martel
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
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Hoppen T, Pauly M, Peitz J, Eberle J, Nüßlein T, Wiebe B. Frühgeborenes mit massiv geblähtem Abdomen und ungewöhnlichem Ultraschallbefund. Monatsschr Kinderheilkd 2020. [DOI: 10.1007/s00112-020-01051-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Gao J, Wu W, Lemaire V, Carvalho A, Nlate S, Buffeteau T, Oda R, Battie Y, Pauly M, Pouget E. Tuning the Chiroptical Properties of Elongated Nano-objects via Hierarchical Organization. ACS Nano 2020; 14:4111-4121. [PMID: 32155050 DOI: 10.1021/acsnano.9b08823] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Chiral materials appear as excellent candidates to control and manipulate the polarization of light in optical devices. In nanophotonics, the self-assembly of colloidal plasmonic nanoparticles gives rise to strong resonances in the visible range, and when such organizations are chiral, a strong chiroplasmonic effect can be observed. In the present work, we describe the optical properties of chiral artificial nanophotonic materials, Goldhelices, which are hierarchically organized by grazing incidence spraying. These Goldhelices are made by plasmonic nanoparticles (gold) grafted onto helical templates made from silica nanohelices. A comparison of oriented versus non-oriented surfaces has been performed by Mueller matrix polarimetry, showing the importance of the organization of the Goldhelices regarding their interaction with light. Moreover, mono- versus multilayer photonic films are created, and the measured optical properties are discussed and compared to simulations.
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Affiliation(s)
- Jie Gao
- CNRS, Univ. Bordeaux, Bordeaux INP, Chimie et Biologie des Membranes et des Nanoobjets, UMR 5248, Allée St Hilaire, Bat B14, 33607 Pessac, France
| | - Wenbing Wu
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
| | - Vincent Lemaire
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
| | - Alain Carvalho
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
| | - Sylvain Nlate
- CNRS, Univ. Bordeaux, Bordeaux INP, Chimie et Biologie des Membranes et des Nanoobjets, UMR 5248, Allée St Hilaire, Bat B14, 33607 Pessac, France
| | - Thierry Buffeteau
- Institut des Sciences Moléculaires (UMR5255 ISM), CNRS, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| | - Reiko Oda
- CNRS, Univ. Bordeaux, Bordeaux INP, Chimie et Biologie des Membranes et des Nanoobjets, UMR 5248, Allée St Hilaire, Bat B14, 33607 Pessac, France
| | - Yann Battie
- LCP-A2MC, Université de Lorraine, 1 Bd Arago, 57070 Metz, France
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
| | - Emilie Pouget
- CNRS, Univ. Bordeaux, Bordeaux INP, Chimie et Biologie des Membranes et des Nanoobjets, UMR 5248, Allée St Hilaire, Bat B14, 33607 Pessac, France
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Hu H, Wang S, Feng X, Pauly M, Decher G, Long Y. In-plane aligned assemblies of 1D-nanoobjects: recent approaches and applications. Chem Soc Rev 2020; 49:509-553. [DOI: 10.1039/c9cs00382g] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
One-dimensional (1D) nanoobjects have strongly anisotropic physical properties which are averaged out and cannot be exploited in disordered systems. We reviewed the in plane alignment approaches and potential applications with perspectives shared.
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Affiliation(s)
- Hebing Hu
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE)
- Nanomaterials for Energy and Energy-Water Nexus (NEW)
| | - Shancheng Wang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE)
- Nanomaterials for Energy and Energy-Water Nexus (NEW)
| | - Xueling Feng
- Key Laboratory of Science and Technology of Eco-Textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Matthias Pauly
- Université de Strasbourg
- CNRS
- Institut Charles Sadron
- F-67000 Strasbourg
- France
| | - Gero Decher
- Université de Strasbourg
- CNRS
- Institut Charles Sadron
- F-67000 Strasbourg
- France
| | - Yi Long
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE)
- Nanomaterials for Energy and Energy-Water Nexus (NEW)
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Sinclair SA, Gille S, Pauly M, Krämer U. Regulation of acetylation of plant cell wall components is complex and responds to external stimuli. Plant Signal Behav 2019; 15:1687185. [PMID: 31696770 PMCID: PMC7012154 DOI: 10.1080/15592324.2019.1687185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Previously, we reported that the allelic de-etiolated by zinc (dez) and trichome birefringence (tbr) mutants exhibit photomorphogenic development in the dark, which is enhanced by high Zn. TRICHOME BIREFRINGENCE-LIKE proteins had been implicated in transferring acetyl groups to various hemicelluloses. Pectin O-acetylation levels were lower in dark-grown dez seedlings than in the wild type. We observed Zn-enhanced photomorphogenesis in the dark also in the reduced wall acetylation 2 (rwa2-3) mutant, which exhibits lowered O-acetylation levels of cell wall macromolecules including pectins and xyloglucans, supporting a role for cell wall macromolecule O-acetylation in the photomorphogenic phenotypes of rwa2-3 and dez. Application of very short oligogalacturonides (vsOGs) restored skotomorphogenesis in dark-grown dez and rwa2-3. Here we demonstrate that in dez, O-acetylation of non-pectin cell wall components, notably of xyloglucan, is enhanced. Our results highlight the complexity of cell wall homeostasis and indicate against an influence of xyloglucan O-acetylation on light-dependent seedling development.
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Affiliation(s)
- S. A. Sinclair
- Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Bochum, Germany
| | - S. Gille
- Institute for Plant Cell Biology and Biotechnology, Heinrich-Heine University, Düsseldorf, Germany
| | - M. Pauly
- Institute for Plant Cell Biology and Biotechnology, Heinrich-Heine University, Düsseldorf, Germany
| | - U. Krämer
- Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Bochum, Germany
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11
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Patrahau B, Chaumont C, Barloy L, Hellwig P, Henry M, Melin F, Pauly M, Mobian P. From a bulk solid to thin films of a hybrid material derived from the [Ti10O12(cat)8(py)8] oxo-cluster and poly(4-vinylpyridine). NEW J CHEM 2019. [DOI: 10.1039/c8nj05410j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Homogeneous coloured hybrid materials are prepared from the [Ti10O12(cat)8(py)8] oxo-cluster and poly(4-vinylpyridine). SiO2 surfaces are functionalized with thin films of this material.
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Affiliation(s)
- Bianca Patrahau
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
| | - Clément Chaumont
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
| | - Laurent Barloy
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
| | - Petra Hellwig
- Laboratoire de Bioélectrochimie et Spectroscopie
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
| | - Marc Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
| | - Frédéric Melin
- Laboratoire de Bioélectrochimie et Spectroscopie
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
| | - Matthias Pauly
- Polyélectrolytes
- Complexes et Matériaux
- Université de Strasbourg
- CNRS
- Institut Charles Sadron
| | - Pierre Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 Unistra-CNRS
- Université de Strasbourg
- 4 rue Blaise Pascal
- F-67000 Strasbourg
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12
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Striolo A, Kim J, Liz-Marzán L, Tadiello L, Pauly M, Murphy C, Roig A, Gracias D, Xia Y, Reguera J, Mueller A, Critchley K, Brust M, Scarabelli L, Mayer M, Thiele M, Buzza M, Deák A, Bago Rodriguez AM, Kuttner C, Wolf H, Kay E, Stocco A, Portehault D, Mattoussi H, Heatley K, Kumacheva E, González G, Hanske C, Tong W, Tahir MN, Abécassis B, Granick S, Duguet E, Synytska A, Velikov K. Janus and patchy nanoparticles: general discussion. Faraday Discuss 2018; 191:117-139. [PMID: 27711897 DOI: 10.1039/c6fd90048h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Bernier L, Pinfold H, Pauly M, Rauschenbach S, Reiss J. Gas Flow and Ion Transfer in Heated ESI Capillary Interfaces. J Am Soc Mass Spectrom 2018; 29:761-773. [PMID: 29468502 DOI: 10.1007/s13361-018-1895-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/10/2018] [Accepted: 01/16/2018] [Indexed: 06/08/2023]
Abstract
Transfer capillaries are the preferred means to transport ions, generated by electrospray ionization, from ambient conditions to vacuum. During the transfer of ions through the narrow, long tubes into vacuum, substantial losses are typical. However, recently it was demonstrated that these losses can be avoided altogether. To understand the experimental observation and provide a general model for the ion transport, here, we investigate the ion transport through capillaries by numerical simulation of interacting ions. The simulation encompasses all relevant factors, such as space charge, diffusion, gas flow, and heating. Special attention is paid to the influence of the gas flow on the transmission and especially the change imposed by heating. The gas flow is modeled by a one-dimensional gas dynamics description. A large number of ions are treated as point particles in this gas flow. This allows to investigate the influence of the capillary heating on the gas flow and by this on the ion transport. The results are compared with experimental findings. Graphical Abstract ᅟ.
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Affiliation(s)
| | | | - Matthias Pauly
- MPI f. Solid State Research, Stuttgart, Germany
- CNRS, Institut Charles Sadron, Université de Strasbourg, Strasbourg, France
| | - Stephan Rauschenbach
- MPI f. Solid State Research, Stuttgart, Germany
- Department of Chemistry, Oxford University, Oxford, UK
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14
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Probst PT, Sekar S, König TAF, Formanek P, Decher G, Fery A, Pauly M. Highly Oriented Nanowire Thin Films with Anisotropic Optical Properties Driven by the Simultaneous Influence of Surface Templating and Shear Forces. ACS Appl Mater Interfaces 2018; 10:3046-3057. [PMID: 29268607 DOI: 10.1021/acsami.7b15042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The functional properties of nanoparticle thin films depend strongly on the arrangement of the nanoparticles within the material. In particular, anisotropic optoelectronic properties can be achieved through the aligned assembly of 1D nanomaterials such as silver nanowires (AgNWs). However, the control of the hierarchical organization of these nanoscale building blocks across multiple length scales and over large areas is still a challenge. Here, we show that the oriented deposition of AgNWs using grazing incidence spraying of the nano-object suspensions on a substrate comprising parallel surface wrinkles readily produces highly oriented monolayer thin films on macroscopic areas (>5 × 5 mm2). The use of textured substrates enhances the degree of ordering as compared to flat ones and increases the area over which AgNWs are oriented. The resulting microscopic linear arrangement of AgNWs evaluated by scanning electron microscopy (SEM) reflects in a pronounced macroscopic optical anisotropy measured by conventional polarized UV-vis-NIR spectroscopy. The enhanced ordering obtained when spraying is done in the same direction as the wrinkles makes this approach more robust against small rotational offsets during preparation. On the contrary, the templating effect of the wrinkle topography can even dominate the shear-driven alignment when spraying is performed perpendicular to the wrinkles: the concomitant but opposing influence of topographic confinement (alignment along the wrinkles) and of spray-induced shear forces (orientation along the spraying direction) lead to films in which the predominant orientation of AgNWs gradually changes from one direction to its perpendicular one over the same substrate in a single processing step. This demonstrates that exploiting the subtle balance between shear forces and substrate-nanowire interactions mediated by wrinkles offers a new way to control the self-assembly of nanoparticles into more complex patterns.
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Affiliation(s)
- Patrick T Probst
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics , Hohe Str. 6, D-01069 Dresden, Germany
| | - Sribharani Sekar
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics , Hohe Str. 6, D-01069 Dresden, Germany
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
| | - Tobias A F König
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics , Hohe Str. 6, D-01069 Dresden, Germany
- Cluster of Excellence Centre for Advancing Electronics Dresden (CFAED), Technische Universität Dresden , D-01062 Dresden, Germany
| | - Petr Formanek
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics , Hohe Str. 6, D-01069 Dresden, Germany
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics , Hohe Str. 6, D-01069 Dresden, Germany
- Cluster of Excellence Centre for Advancing Electronics Dresden (CFAED), Technische Universität Dresden , D-01062 Dresden, Germany
- Department of Physical Chemistry of Polymeric Materials, Technische Universität Dresden , Hohe Str. 6, D-01069 Dresden, Germany
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron, F-67000 Strasbourg, France
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15
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Hirschman K, Toles M, Jarrin O, Shaid E, Pauly M, Naylor M. PHASE I: A QUANTITATIVE EVALUATION OF ADAPTATIONS OF THE TRANSITIONAL CARE MODEL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K.B. Hirschman
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - M. Toles
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina,
| | - O.F. Jarrin
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- Rutgers, The State University of New Jersey, School of Nursing, Newark, New Jersey,
| | - E. Shaid
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - M. Pauly
- Wharton School, University of Pennslyvania, Philadelphia, Pennsylvania
| | - M.D. Naylor
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
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16
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Naylor M, Hirschman K, Toles M, Shaid E, McCauley K, Pauly M. ADAPTATIONS OF EVIDENCE-BASED INTERVENTIONS: THE CASE OF THE TRANSITIONAL CARE MODEL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- M.D. Naylor
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - K.B. Hirschman
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - M. Toles
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina,
| | - E. Shaid
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - K. McCauley
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - M. Pauly
- Wharton School, University of Pennslyvania, Philadelphia, Pennsylvania
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17
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Naylor M, Pauly M. ADAPTATIONS OF EVIDENCE BASED TRANSITIONAL CARE MODELS IN THE U.S. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M.D. Naylor
- University of Pennsylvania School of Nursing
| | - M. Pauly
- Wharton School, University of Pennslyvania, Philadelphia, Pennsylvania
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18
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Toles M, Hirschman K, Shaid E, Jarrin O, Pauly M, Naylor M. PHASE II: QUALITATIVE ASSESSMENT OF ADAPTATIONS OF THE TRANSITIONAL CARE MODEL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Toles
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - K.B. Hirschman
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
| | - E. Shaid
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
| | - O.F. Jarrin
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- Rutgers, The State University of New Jersey, School of Nursing, Newark, New Jersey,
| | - M. Pauly
- Wharton School, University of Pennslyvania, Philadelphia, Pennsylvania
| | - M.D. Naylor
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania,
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19
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Naylor M, Hirschman K, Hanlon A, Barg R, McCauley K, Shaid E, Pauly M. TESTING THE PATIENT-CENTERED MEDICAL HOME PLUS TRANSITIONAL CARE MODEL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M.D. Naylor
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania
| | - K.B. Hirschman
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania
| | - A. Hanlon
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania
| | - R. Barg
- University of Pennsylvania Health System, Philadelphia, Pennsylvania,
| | - K. McCauley
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania
| | - E. Shaid
- University of Pennsylvania School of Nursing,
Philadelphia, Pennsylvania,
- NewCourtland Center for Transtions and Health, Philadelphia, Pennsylvania
| | - M. Pauly
- Wharton School, University of Pennslyvania, Philadelphia, Pennsylvania,
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20
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Roth L, O'Donohue T, Chen Z, Bartlett N, Martin-Doyle W, Barth M, Davies K, Christian B, Casulo C, Godfrey J, Oberley M, Alexander S, Weitzman S, Appel B, Svoboda J, Afify Z, Pauly M, Dave H, Gardner R, Stephens D, Zeitler W, Forlenza C, Levine J, Williams M, Bollard C, Leonard J. OUTCOMES OF ADULTS, ADOLESCENTS, AND CHILDREN WITH PRIMARY MEDIASTINAL B-CELL LYMPHOMA TREATED WITH DOSE-ADJUSTED EPOCH-R THERAPY: a MULTICENTER RETROSPECTIVE ANALYSIS. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_48] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- L.G. Roth
- Pediatrics; Weill Cornell Medical College; New York USA
| | - T. O'Donohue
- Pediatrics; Weill Cornell Medical College; New York USA
| | - Z. Chen
- Healthcare Policy and Research; Weill Cornell Medical College; New York New York USA
| | - N. Bartlett
- Department of Medicine; Washington University School of Medicine; St. Louis Missouri USA
| | - W. Martin-Doyle
- Department of Medicine; Brigham and Women's Hospital; Boston Massachusetts USA
| | - M.J. Barth
- Department of Pediatrics; Roswell Park Cancer Institute and University at Buffalo; Buffalo New York USA
| | - K. Davies
- Department of Pediatrics; Dana Farber Cancer Institute; Boston Massachusetts USA
| | - B. Christian
- Division of Hematology; The Ohio State University and Arthur G. James Cancer Hospital; Columbus Ohio USA
| | - C. Casulo
- Department of Medicine; University of Rochester Medical Center; Rochester New York USA
| | - J. Godfrey
- Department of Medicine; University of Chicago; Chicago Illinois USA
| | - M.J. Oberley
- Department of Pediatrics; Keck School of Medicine; Los Angeles California USA
| | - S. Alexander
- Division of Haematology/Oncology; Hospital for Sick Children; Toronto Ontario Canada
| | - S. Weitzman
- Division of Haematology/Oncology; Hospital for Sick Children; Toronto Ontario Canada
| | - B. Appel
- Department of Pediatrics; Hackensack University Medical Center; Hackensack New Jersey USA
| | - J. Svoboda
- Lymphoma Program, Abramson Cancer Center; University of Pennsylvania; Philadelphia Pennsylvania USA
| | - Z. Afify
- Department of Pediatrics; University of Utah; Salt Lake City Utah USA
| | - M. Pauly
- Department of Pediatrics; Emory University; Atlanta Georgia USA
| | - H. Dave
- Department of Pediatrics; The George Washington University and Children's National Health System; Washington District of Columbia USA
| | - R. Gardner
- Department of Pediatrics; Seattle Children's Hospital; Seattle WA USA
| | - D.M. Stephens
- Department of Medicine; University of Utah; Salt Lake City Utah USA
| | - W.A. Zeitler
- Department of Medicine; University of Iowa; Iowa City Iowa USA
| | - C. Forlenza
- Department of Pediatrics; Memorial Sloan Kettering Cancer Center; New York New York USA
| | - J. Levine
- Department of Pediatrics; Columbia University; New York New York USA
| | - M.E. Williams
- Hematology/Oncology Division and Cancer Center; University of Virginia School of Medicine; Charlottesville Virginia USA
| | - C.M. Bollard
- Department of Pediatrics; The George Washington University and Children's National Health System; Washington District of Columbia USA
| | - J.P. Leonard
- Department of Medicine; Weill Cornell Medical College; New York New York USA
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21
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22
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Mahon G, Menzel A, Pauly M, Metzger B, Dicato M. A SNP genotype in the TGFBR1 gene is associated with earlier onset of colorectal cancer in males. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30270-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Blell R, Lin X, Lindström T, Ankerfors M, Pauly M, Felix O, Decher G. Generating in-Plane Orientational Order in Multilayer Films Prepared by Spray-Assisted Layer-by-Layer Assembly. ACS Nano 2017; 11:84-94. [PMID: 28114762 DOI: 10.1021/acsnano.6b04191] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present a simple yet efficient method for orienting cellulose nanofibrils in layer-by-layer assembled films through spray-assisted alignment. While spraying at 90° against a receiving surface produces films with homogeneous in-plane orientation, spraying at smaller angles causes a macroscopic directional surface flow of liquid on the receiving surface and leads to films with substantial in-plane anisotropy when nanoscale objects with anisotropic shapes are used as components. First results with cellulose nanofibrils demonstrate that such fibrils are easily aligned by grazing incidence spraying to yield optically birefringent films over large surface areas. We show that the cellulosic nanofibrils are oriented parallel to the spraying direction and that the orientational order depends for example on the distance of the receiving surface from the spray nozzle. The alignment of the nanofibrils and the in-plane anisotropy of the films were independently confirmed by atomic force microscopy, optical microscopy between crossed polarizers, and the ellipsometric determination of the apparent refractive index of the film as a function of the in-plane rotation of the sample with respect to the plane of incidence of the ellipsometer.
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Affiliation(s)
- Rebecca Blell
- CNRS Institut Charles Sadron , 23 Rue du Loess, F-67034 Strasbourg, France
| | - Xiaofeng Lin
- CNRS Institut Charles Sadron , 23 Rue du Loess, F-67034 Strasbourg, France
| | - Tom Lindström
- Innventia AB , Drottning Kristinas väg 61, Box 5604, SE-114 86 Stockholm, Sweden
| | - Mikael Ankerfors
- Innventia AB , Drottning Kristinas väg 61, Box 5604, SE-114 86 Stockholm, Sweden
| | - Matthias Pauly
- CNRS Institut Charles Sadron , 23 Rue du Loess, F-67034 Strasbourg, France
- Faculté de Chimie, Université de Strasbourg , 1 Rue Blaise Pascal, F-67008 Strasbourg, France
| | - Olivier Felix
- CNRS Institut Charles Sadron , 23 Rue du Loess, F-67034 Strasbourg, France
| | - Gero Decher
- CNRS Institut Charles Sadron , 23 Rue du Loess, F-67034 Strasbourg, France
- Faculté de Chimie, Université de Strasbourg , 1 Rue Blaise Pascal, F-67008 Strasbourg, France
- International Center for Frontier Research in Chemistry , 8 Allée Gaspard Monge, F-67083 Strasbourg, France
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24
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Hu H, Pauly M, Felix O, Decher G. Spray-assisted alignment of Layer-by-Layer assembled silver nanowires: a general approach for the preparation of highly anisotropic nano-composite films. Nanoscale 2017; 9:1307-1314. [PMID: 28059411 DOI: 10.1039/c6nr08045f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The present article focuses on the build-up and the properties of oriented silver nanowire monolayer films and Layer-by-Layer assembled multilayer films. We describe the template-free oriented spray-assisted assembly of silver nanowires at solid/air-interfaces using Grazing Incidence Spraying, a simple and versatile approach that allows the formation of highly oriented thin films with a tunable density and in-plane orientation. Depending on the spraying conditions the nematic order parameter, which describes the angular spread of misaligned nanowires, can be as high as 0.98 (a value of 1.00 corresponding to a perfectly parallel alignment). The combination with the Layer-by-Layer assembly allows building multilayer thin films possessing in-plane anisotropy. In order to demonstrate that the local alignment does not cancel out on the macroscopic scale but leads to direction-dependent properties, we use linearly polarized UV-Vis-NIR spectroscopy to probe the selective excitation of the transverse and longitudinal localized plasmon resonances of the nanowires. The polarization efficiency of the thin films increases strongly with the in-plane density, the degree of orientation, and the number of silver nanowire layers. Multilayer films containing 4 layers of nanowires oriented in the same direction reach a polarization efficiency of up to 97% in the near-infrared region.
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Affiliation(s)
- H Hu
- Institut Charles Sadron, CNRS (UPR22), 23 rue du Loess, F-67034 Strasbourg, France.
| | - M Pauly
- Institut Charles Sadron, CNRS (UPR22), 23 rue du Loess, F-67034 Strasbourg, France. and Faculté de Chimie, Université de Strasbourg, 1 rue Blaise Pascal, F-67008 Strasbourg, France
| | - O Felix
- Institut Charles Sadron, CNRS (UPR22), 23 rue du Loess, F-67034 Strasbourg, France.
| | - G Decher
- Institut Charles Sadron, CNRS (UPR22), 23 rue du Loess, F-67034 Strasbourg, France. and Faculté de Chimie, Université de Strasbourg, 1 rue Blaise Pascal, F-67008 Strasbourg, France and International Center for Frontier Research in Chemistry, 8 allée Gaspard Monge, F-67083 Strasbourg, France and Excellence Cluster "Nanostructures in Interaction with their Environment" (LabEx NIE), 23 rue du Loess, F-67034 Strasbourg, France
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25
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Zwink N, Choinitzki V, Baudisch F, Hölscher A, Boemers TM, Turial S, Kurz R, Heydweiller A, Keppler K, Müller A, Bagci S, Pauly M, Brokmeier U, Leutner A, Degenhardt P, Schmiedeke E, Märzheuser S, Grasshoff-Derr S, Holland-Cunz S, Palta M, Schäfer M, Ure BM, Lacher M, Nöthen MM, Schumacher J, Jenetzky E, Reutter H. Comparison of environmental risk factors for esophageal atresia, anorectal malformations, and the combined phenotype in 263 German families. Dis Esophagus 2016; 29:1032-1042. [PMID: 26541887 DOI: 10.1111/dote.12431] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Esophageal atresia with or without tracheoesophageal fistula (EA/TEF) and anorectal malformations (ARM) represent the severe ends of the fore- and hindgut malformation spectra. Previous research suggests that environmental factors are implicated in their etiology. These risk factors might indicate the influence of specific etiological mechanisms on distinct developmental processes (e.g. fore- vs. hindgut malformation). The present study compared environmental factors in patients with isolated EA/TEF, isolated ARM, and the combined phenotype during the periconceptional period and the first trimester of pregnancy in order to investigate the hypothesis that fore- and hindgut malformations involve differing environmental factors. Patients with isolated EA/TEF (n = 98), isolated ARM (n = 123), and the combined phenotype (n = 42) were included. Families were recruited within the context of two German multicenter studies of the genetic and environmental causes of EA/TEF (great consortium) and ARM (CURE-Net). Exposures of interest were ascertained using an epidemiological questionnaire. Chi-square, Fisher's exact, and Mann-Whitney U-tests were used to assess differences between the three phenotypes. Newborns with isolated EA/TEF and the combined phenotype had significantly lower birth weights than newborns with isolated ARM (P = 0.001 and P < 0.0001, respectively). Mothers of isolated EA/TEF consumed more alcohol periconceptional (80%) than mothers of isolated ARM or the combined phenotype (each 67%). Parental smoking (P = 0.003) and artificial reproductive techniques (P = 0.03) were associated with isolated ARM. Unexpectedly, maternal periconceptional multivitamin supplementation was most frequent among patients with the most severe form of disorder, i.e. the combined phenotype (19%). Significant differences in birth weight were apparent between the three phenotype groups. This might be attributable to the limited ability of EA/TEF fetuses to swallow amniotic fluid, thus depriving them of its nutritive properties. Furthermore, the present data suggest that fore- and hindgut malformations involve differing environmental factors. Maternal periconceptional multivitamin supplementation was highest among patients with the combined phenotype. This latter finding is contrary to expectation, and warrants further analysis in large prospective epidemiological studies.
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Affiliation(s)
- N Zwink
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - V Choinitzki
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - F Baudisch
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - A Hölscher
- Department of Pediatric Surgery and Urology, University Hospital Cologne, Cologne, Germany
| | - T M Boemers
- Department of Pediatric Surgery and Urology, University Hospital Cologne, Cologne, Germany
| | - S Turial
- Department of Pediatric Surgery, University Hospital Mainz, Mainz, Germany
| | - R Kurz
- Department of Pediatric Surgery, University Hospital Bonn, Bonn, Germany
| | - A Heydweiller
- Department of Pediatric Surgery, University Hospital Bonn, Bonn, Germany
| | - K Keppler
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - A Müller
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - S Bagci
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - M Pauly
- Department of Pediatric Surgery, Asklepios Children's Hospital St. Augustin, St. Augustin, Germany
| | - U Brokmeier
- Department of Pediatric Surgery, Asklepios Children's Hospital St. Augustin, St. Augustin, Germany
| | - A Leutner
- Department of Pediatric Surgery, Medical Center Dortmund, Dortmund, Germany
| | - P Degenhardt
- Department of Pediatric Surgery, Charité University Medicine Berlin, Berlin, Germany
| | - E Schmiedeke
- Department of Pediatric Surgery and Urology, Center for Child and Youth Health, Klinikum Bremen-Mitte, Bremen, Germany
| | - S Märzheuser
- Department of Pediatric Surgery, Charité University Medicine Berlin, Berlin, Germany
| | - S Grasshoff-Derr
- Unit of Pediatric Surgery, University Hospital Wurzburg, Wurzburg, Germany
| | - S Holland-Cunz
- Department of Pediatric Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - M Palta
- Department of Pediatric Surgery, Evangelisches Krankenhaus Hamm, Hamm, Germany
| | - M Schäfer
- Department of Pediatric Surgery and Urology, Cnopf'sche Kinderklinik, Nürnberg, Germany
| | - B M Ure
- Center of Pediatric Surgery Hannover, Hannover Medical School and Bult Children's Hospital, Hannover, Germany
| | - M Lacher
- Center of Pediatric Surgery Hannover, Hannover Medical School and Bult Children's Hospital, Hannover, Germany
| | - M M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - J Schumacher
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - E Jenetzky
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany.,Department of Child and Adolescent Psychiatry and Psychotherapy, Johannes-Gutenberg University, Mainz, Germany.,Child Center Maulbronn gGmbH, Hospital for Pediatric Neurology and Social Pediatrics, Maulbronn, Germany
| | - H Reutter
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
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Chabi B, Pauly M, Carillon J, Carnac G, Favier FB, Fouret G, Bonafos B, Vanterpool F, Vernus B, Coudray C, Feillet-Coudray C, Bonnieu A, Lacan D, Koechlin-Ramonatxo C. Protective effect of myostatin gene deletion on aging-related muscle metabolic decline. Exp Gerontol 2016; 78:23-31. [PMID: 26944368 DOI: 10.1016/j.exger.2016.01.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 01/21/2016] [Accepted: 01/28/2016] [Indexed: 12/13/2022]
Abstract
While myostatin gene deletion is a promising therapy to fight muscle loss during aging, this approach induces also skeletal muscle metabolic changes such as mitochondrial deficits, redox alteration and increased fatigability. In the present study, we evaluated the effects of aging on these features in aged wild-type (WT) and mstn knockout (KO) mice. Moreover, to determine whether an enriched-antioxidant diet may be useful to prevent age-related disorders, we orally administered to the two genotypes a melon concentrate rich in superoxide dismutase for 12 weeks. We reported that mitochondrial functional abnormalities persisted (decreased state 3 and 4 of respiration; p<0.05) in skeletal muscle from aged KO mice; however, differences with WT mice were attenuated at old age in line with reduced difference on running endurance between the two genotypes. Interestingly, we showed an increase in glutathione levels, associated with lower lipid peroxidation levels in KO muscle. Enriched antioxidant diet reduced the aging-related negative effects on maximal aerobic velocity and running limit time (p<0.05) in both groups, with systemic adaptations on body weight. The redox status and the hypertrophic phenotype appeared to be beneficial to KO mice, mitigating the effect of aging on the skeletal muscle metabolic remodeling.
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Affiliation(s)
- B Chabi
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - M Pauly
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | | | - G Carnac
- Inserm U1046, Université ́ Montpellier, 34295 Montpellier, France
| | - F B Favier
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - G Fouret
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - B Bonafos
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - F Vanterpool
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - B Vernus
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - C Coudray
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - C Feillet-Coudray
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - A Bonnieu
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France
| | - D Lacan
- Bionov Sarl, Avignon, France
| | - C Koechlin-Ramonatxo
- INRA, UMR866 Dynamique Musculaire et Métabolisme, Université Montpellier, F-34060, Montpellier, France.
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Sekar S, Lemaire V, Hu H, Decher G, Pauly M. Anisotropic optical and conductive properties of oriented 1D-nanoparticle thin films made by spray-assisted self-assembly. Faraday Discuss 2016; 191:373-389. [DOI: 10.1039/c6fd00017g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the fabrication of oriented anisotropic metal nanoparticle thin films made by Grazing Incidence Spraying (GIS) and on the anisotropic plasmonic properties of the resulting thin films. Gold nanorods of two different aspect ratios and silver nanowires were self-assembled as a uniaxially aligned monolayer with the GIS approach. In particular, we examine the influence of the nanowire/nanorod length and diameter on the degree of ordering determined by electron microscopy pictures. Furthermore, we show that the anisotropy of the optical properties (probed by polarized UV-visible-near infrared spectroscopy) strongly depend on the quality of alignment. The prepared monolayer thin films have an orientation order parameter of up to 0.83 for silver nanowires, which is reflected in an optical anisotropy of 0.57 in the UV-visible and 0.76 in the near infrared through the selective excitation of transverse and longitudinal surface plasmon resonance modes. The electronic transport in oriented silver nanowire monolayers is also shown to be highly directional, with the sheet resistance varying over almost an order of magnitude depending on the transport direction. Such anisotropic conductive plasmonic thin films may find applications in various fields like biochemical sensing, energy transport and harvesting or optoelectronic devices.
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Affiliation(s)
- S. Sekar
- Institut Charles Sadron
- CNRS (UPR22)
- F-67034 Strasbourg
- France
- Faculté de Chimie
| | - V. Lemaire
- Institut Charles Sadron
- CNRS (UPR22)
- F-67034 Strasbourg
- France
- Faculté de Chimie
| | - H. Hu
- Institut Charles Sadron
- CNRS (UPR22)
- F-67034 Strasbourg
- France
- Faculté de Chimie
| | - G. Decher
- Institut Charles Sadron
- CNRS (UPR22)
- F-67034 Strasbourg
- France
- Faculté de Chimie
| | - M. Pauly
- Institut Charles Sadron
- CNRS (UPR22)
- F-67034 Strasbourg
- France
- Faculté de Chimie
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28
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Striolo A, Kim J, Murphy C, Liz-Marzán L, Lahann J, Reguera J, Zhou Y, Brust M, Thill A, Scarabelli L, König TAF, Buzza M, Kuttner C, Gonzalez Solveyra E, Wolf H, Vermant J, Pauly M, Harvie A, Pasquato L, Stocco A, Mattoussi H, Kumacheva E, Heatley K, Hanske C, Faller R, French D, Honciuc A, Binks B, Sicard F. Particles at interfaces: general discussion. Faraday Discuss 2016; 191:407-434. [DOI: 10.1039/c6fd90050j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Mahon G, Menzel A, Pauly M, Metzger B, Dicato M. 1109 Inexpensive biomarkers may determine individuals at increased risk for colorectal cancer and hence have the repeat screening colonoscopy after the first normal earlier than guidelines recommend. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30491-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Metzger B, Mahon G, Menzel A, Pauly M, Dicato M. PD-011 Inexpensive biomarkers for determining individuals at increased risk for colorectal cancer and hence have the repeat screening colonoscopy after the first normal earlier than guidelines recommend. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv234.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Taylor-Teeples M, Lin L, de Lucas M, Turco G, Toal TW, Gaudinier A, Young NF, Trabucco GM, Veling MT, Lamothe R, Handakumbura PP, Xiong G, Wang C, Corwin J, Tsoukalas A, Zhang L, Ware D, Pauly M, Kliebenstein DJ, Dehesh K, Tagkopoulos I, Breton G, Pruneda-Paz JL, Ahnert SE, Kay SA, Hazen SP, Brady SM. An Arabidopsis gene regulatory network for secondary cell wall synthesis. Nature 2014; 517:571-5. [PMID: 25533953 PMCID: PMC4333722 DOI: 10.1038/nature14099] [Citation(s) in RCA: 447] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 11/20/2014] [Indexed: 12/15/2022]
Abstract
The plant cell wall is an important factor for determining cell shape, function and response to the environment. Secondary cell walls, such as those found in xylem, are composed of cellulose, hemicelluloses and lignin and account for the bulk of plant biomass. The coordination between transcriptional regulation of synthesis for each polymer is complex and vital to cell function. A regulatory hierarchy of developmental switches has been proposed, although the full complement of regulators remains unknown. Here, we present a protein-DNA network between Arabidopsis transcription factors and secondary cell wall metabolic genes with gene expression regulated by a series of feed-forward loops. This model allowed us to develop and validate new hypotheses about secondary wall gene regulation under abiotic stress. Distinct stresses are able to perturb targeted genes to potentially promote functional adaptation. These interactions will serve as a foundation for understanding the regulation of a complex, integral plant component.
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Affiliation(s)
- M Taylor-Teeples
- 1] Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - L Lin
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - M de Lucas
- 1] Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - G Turco
- 1] Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - T W Toal
- 1] Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - A Gaudinier
- 1] Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - N F Young
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - G M Trabucco
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - M T Veling
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - R Lamothe
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - P P Handakumbura
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - G Xiong
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - C Wang
- Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - J Corwin
- Department of Plant Sciences, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - A Tsoukalas
- 1] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Department of Computer Science, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - L Zhang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA
| | - D Ware
- 1] Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA [2] US Department of Agriculture, Agricultural Research Service, Ithaca, New York 14853, USA
| | - M Pauly
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - D J Kliebenstein
- Department of Plant Sciences, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - K Dehesh
- Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - I Tagkopoulos
- 1] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Department of Computer Science, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - G Breton
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, California 92093, USA
| | - J L Pruneda-Paz
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, California 92093, USA
| | - S E Ahnert
- Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK
| | - S A Kay
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, California 92093, USA
| | - S P Hazen
- Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - S M Brady
- 1] Department of Plant Biology, University of California Davis, One Shields Avenue, Davis, California 95616, USA [2] Genome Center, University of California Davis, One Shields Avenue, Davis, California 95616, USA
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32
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Rinke G, Rauschenbach S, Harnau L, Albarghash A, Pauly M, Kern K. Active conformation control of unfolded proteins by hyperthermal collision with a metal surface. Nano Lett 2014; 14:5609-5615. [PMID: 25198655 DOI: 10.1021/nl502122j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The physical and chemical properties of macromolecules like proteins are strongly dependent on their conformation. The degrees of freedom of their chemical bonds generate a huge conformational space, of which, however, only a small fraction is accessible in thermal equilibrium. Here we show that soft-landing electrospray ion beam deposition (ES-IBD) of unfolded proteins allows to control their conformation. The dynamics and result of the deposition process can be actively steered by selecting the molecular ion beam's charge state or tuning the incident energy. Using these parameters, protein conformations ranging from fully extended to completely compact can be prepared selectively on a surface, as evidenced on the subnanometer/amino acid resolution level by scanning tunneling microscopy (STM). Supported by molecular dynamics (MD) simulations, our results demonstrate that the final conformation on the surface is reached through a mechanical deformation during the hyperthermal ion surface collision. Our experimental results independently confirm the findings of ion mobility spectrometry (IMS) studies of protein gas phase conformations. Moreover, we establish a new route for the processing of macromolecular materials, with the potential to reach conformations that would be inaccessible otherwise.
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Affiliation(s)
- Gordon Rinke
- Max-Planck-Institute for Solid State Research , 70569 Stuttgart, Germany
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33
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Garcia JP, Beingesser J, Bohorov O, Bohorova N, Goodman C, Kim D, Pauly M, Velasco J, Whaley K, Zeitlin L, Roy CJ, Uzal FA. Prevention and treatment of Clostridium perfringens epsilon toxin intoxication in mice with a neutralizing monoclonal antibody (c4D7) produced in Nicotiana benthamiana. Toxicon 2014; 88:93-8. [PMID: 24950050 PMCID: PMC4119486 DOI: 10.1016/j.toxicon.2014.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/24/2014] [Accepted: 06/10/2014] [Indexed: 11/16/2022]
Abstract
Epsilon toxin (ETX), produced by Clostridium perfringens types B and D, is among the most lethal toxins known. ETX is a potential bioterrorism threat that was listed as a Category B agent by the U.S. Centers for Disease Control until 2012 and it still remains a toxin of interest for several government agencies. We produced a monoclonal antibody (MAb) against ETX (ETX MAb c4D7) in Nicotiana benthamiana and characterized its preventive and therapeutic efficacy in mice. The ETX preparation used was highly lethal for mice (LD50 = 1.6 μg/kg) and resulted in a mean time from inoculation to death of 18 and 180 min when administered intravenously or intraperitoneally, respectively. High lethal challenge resulted in dramatic increases of a variety of pro-inflammatory cytokines in serum, while lower, but still lethal doses, did not elicit such responses. ETX MAb c4D7 was highly effective prophylactically (ED50 = 0.3 mg/kg; ED100 = 0.8 mg/kg) and also provided protection when delivered 15-30 min post-ETX intoxication. These data suggest that ETX MAb c4D7 may have use as a pre- and post-exposure treatment for ETX intoxication.
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Affiliation(s)
- J P Garcia
- California Animal Health and Food Safety Laboratory System, San Bernardino Branch, School of Veterinary Medicine, University of California, Davis, San Bernardino, CA 92408, USA
| | - J Beingesser
- California Animal Health and Food Safety Laboratory System, San Bernardino Branch, School of Veterinary Medicine, University of California, Davis, San Bernardino, CA 92408, USA
| | - O Bohorov
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - N Bohorova
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - C Goodman
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - D Kim
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - M Pauly
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - J Velasco
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - K Whaley
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - L Zeitlin
- Mapp Biopharmaceutical, Inc., San Diego, CA, USA
| | - C J Roy
- Microbiology Division, Tulane National Primate Research Center, Covington, LA, USA
| | - F A Uzal
- California Animal Health and Food Safety Laboratory System, San Bernardino Branch, School of Veterinary Medicine, University of California, Davis, San Bernardino, CA 92408, USA.
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Pauly M, Sroka M, Reiss J, Rinke G, Albarghash A, Vogelgesang R, Hahne H, Kuster B, Sesterhenn J, Kern K, Rauschenbach S. A hydrodynamically optimized nano-electrospray ionization source and vacuum interface. Analyst 2014; 139:1856-67. [DOI: 10.1039/c3an01836a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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35
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Metzger B, Pauly M, Mahon G, Menzel A, Weber B, Dicato M. Association Between Colorectal Cancer Stage and Tgfbr1 Depends on Kras/Braf and Mgmt Status. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt202.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Fleutot S, Nealon GL, Pauly M, Pichon BP, Leuvrey C, Drillon M, Gallani JL, Guillon D, Donnio B, Begin-Colin S. Spacing-dependent dipolar interactions in dendronized magnetic iron oxide nanoparticle 2D arrays and powders. Nanoscale 2013; 5:1507-16. [PMID: 23306456 DOI: 10.1039/c2nr32117c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Self-assembly of nanoparticles (NPs) into tailored structures is a promising strategy for the production and design of materials with new functions. In this work, 2D arrays of iron oxide NPs with interparticle distances tuned by grafting fatty acids and dendritic molecules at the NPs surface have been obtained over large areas with high density using the Langmuir-Blodgett technique. The anchoring agent of molecules and the Janus structure of NPs are shown to be key parameters driving the deposition. Finally the influence of interparticle distance on the collective magnetic properties in powders and in monolayers is clearly demonstrated by DC and AC SQUID measurements. The blocking temperature T(B) increases as the interparticle distance decreases, which is consistent with the fact that dipolar interactions are responsible for this increase. Dipolar interactions are found to be stronger for particles assembled in thin films compared to powdered samples and may be described by using the Vogel Fulcher model.
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Affiliation(s)
- Solenne Fleutot
- Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR CNRS-UdS 7504, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
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37
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Pauly M, Mahon G, Dicato M, Metzger B, Menzel A. Single Nucleotide Polymorphisms (SNP'S) in the P53, SMAD7 and TGFBR1 Genes Associated with Advanced Colorectal Cancer in Caucasian Patients Compared to Healthy Controls. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33231-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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38
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39
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Pauly M, Dayen JF, Golubev D, Beaufrand JB, Pichon BP, Doudin B, Bégin-Colin S. Co-tunneling enhancement of the electrical response of nanoparticle networks. Small 2012; 8:108-15. [PMID: 22095862 DOI: 10.1002/smll.201100931] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 08/08/2011] [Indexed: 05/10/2023]
Abstract
A co-tunneling charge-transfer process dominates the electrical properties of a nanometer-sized "slice" in a nanoparticle network, which results in universal scaling of the conductance with temperature and bias voltage, as well as enhanced spintronics properties. By designing two large (10 μm) electrodes with short (60 nm) separation, access is obtained to transport dominated by charge transfer involving "nanoslices" made of three nanoparticles only. Magnetic iron oxide nanoparticle networks exhibit a magnetoresistance ratio that is not reachable by tunneling or hopping processes, thereby illustrating how such a size-matched planar device with dominant co-tunneling charge-transfer process is optimal for realizing multifunctional devices with enhanced change of conductance under external stimulus.
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Affiliation(s)
- Matthias Pauly
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS-UdS-UMR 7504, 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France
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40
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Pauly M, Pichon BP, Panissod P, Fleutot S, Rodriguez P, Drillon M, Begin-Colin S. Size dependent dipolar interactions in iron oxide nanoparticle monolayer and multilayer Langmuir–Blodgett films. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15797g] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Pichon BP, Barbillon G, Marie P, Pauly M, Begin-Colin S. Iron oxide magnetic nanoparticles used as probing agents to study the nanostructure of mixed self-assembled monolayers. Nanoscale 2011; 3:4696-4705. [PMID: 21975947 DOI: 10.1039/c1nr10729a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Self-assembled monolayers (SAMs) of organic molecules are of exceptional technological importance since they represent a convenient, flexible, and simple system for tuning the chemical and physical properties of surfaces. The fine control of surface properties is directly dependent on the structure of mixed SAMs which is difficult to characterize at the nanoscale with usual techniques such as scanning probe microscopies. In this study, we report on a general method to investigate at the nanoscale the structure of molecular patterns which consist in SAMs of two components. Iron oxide nanoparticles (NPs) have been used as probing agents to study indirectly the structure of mixed SAMs. Mixed SAMs were prepared by the replacement of mercaptododecane (MDD) adsorbed by mercaptoundecanoic acid (MUA) molecules on gold substrates. Therefore, the SAM surface displays both chelating carboxylic terminal groups and non-chelating methylene terminal groups. As NPs have been previously demonstrated to specifically interact with carboxylic acid groups, the increasing density in NPs was correlated with the evolution of the COOH/CH(3) terminal groups ratio. Therefore the structure of mixed SAMs was studied indirectly as well as the kinetic of the replacement reaction and its mechanism. With this aim, we took advantage of the SPR properties of the gold substrate and of the high refractive index of iron oxide nanoparticles to follow their assembling on mixed SAMs as a time resolved study. The high sensitivity and tuning of the SPR signal over a wide range of wavelengths are correlated with the NP density. Furthermore, SEM combined with image analysis has allowed studying the replacement rate of MDD by MUA in SAMs. We took also advantages of the magnetic properties of NPs to evaluate qualitatively the replacement of thiol molecules.
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Affiliation(s)
- Benoit P Pichon
- Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR CNRS-UdS 7504), 23 rue du Loess-BP43, 67034, Strasbourg Cedex 2, France.
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42
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Pichon BP, Pauly M, Marie P, Leuvrey C, Begin-Colin S. Tunable magnetic properties of nanoparticle two-dimensional assemblies addressed by mixed self-assembled monolayers. Langmuir 2011; 27:6235-6243. [PMID: 21495667 DOI: 10.1021/la105052z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Assemblies of magnetic nanoparticles (NPs) are intensively studied due to their high potential applications in spintronic, magnetic and magneto-electronic. The fine control over NP density, interdistance, and spatial arrangement onto substrates is of key importance to govern the magnetic properties through dipolar interactions. In this study, magnetic iron oxide NPs have been assembled on surfaces patterned with self-assembled monolayers (SAMs) of mixed organic molecules. The modification of the molar ratio between coadsorbed 11-mercaptoundecanoic acid (MUA) and mercaptododecane (MDD) on gold substrates is shown to control the size of NPs domains and thus to modulate the characteristic magnetic properties of the assemblies. Moreover, NPs can be used to indirectly probe the structure of SAMs in domains at the nanometer scale.
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Affiliation(s)
- Benoit P Pichon
- Institut de Physique et de Chimie des Matériaux de Strasbourg, 23 rue du Loess-BP 43, 67034 Strasbourg Cedex 2, France.
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Pauly M, Pichon BP, Albouy PA, Fleutot S, Leuvrey C, Trassin M, Gallani JL, Begin-Colin S. Monolayer and multilayer assemblies of spherically and cubic-shaped iron oxide nanoparticles. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12012c] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dayen JF, Faramarzi V, Pauly M, Kemp NT, Barbero M, Pichon BP, Majjad H, Begin-Colin S, Doudin B. Nanotrench for nano and microparticle electrical interconnects. Nanotechnology 2010; 21:335303. [PMID: 20660957 DOI: 10.1088/0957-4484/21/33/335303] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We present a simple and versatile patterning procedure for the reliable and reproducible fabrication of high aspect ratio (10(4)) electrical interconnects that have separation distances down to 20 nm and lengths of several hundreds of microns. The process uses standard optical lithography techniques and allows parallel processing of many junctions, making it easily scalable and industrially relevant. We demonstrate the suitability of these nanotrenches as electrical interconnects for addressing micro and nanoparticles by realizing several circuits with integrated species. Furthermore, low impedance metal-metal low contacts are shown to be obtained when trapping a single metal-coated microsphere in the gap, emphasizing the intrinsic good electrical conductivity of the interconnects, even though a wet process is used. Highly resistive magnetite-based nanoparticles networks also demonstrate the advantage of the high aspect ratio of the nanotrenches for providing access to electrical properties of highly resistive materials, with leakage current levels below 1 pA.
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Affiliation(s)
- J-F Dayen
- IPCMS-Department of Magnetic Objects on the Nanoscale, 23 rue du Loess BP 43, F-67034, Strasbourg Cedex 2, France.
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Wenner T, Metzger B, Chambeau L, Mahon G, Pauly M, Kaiser J, Berchem GJ, Dicato M. Are MGMT promoter methylation and EGFR mutations early markers of tumor progression in colorectal cancer? J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Frenz L, El Harrak A, Pauly M, Bégin-Colin S, Griffiths A, Baret JC. Droplet-Based Microreactors for the Synthesis of Magnetic Iron Oxide Nanoparticles. Angew Chem Int Ed Engl 2008; 47:6817-20. [DOI: 10.1002/anie.200801360] [Citation(s) in RCA: 240] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Frenz L, El Harrak A, Pauly M, Bégin-Colin S, Griffiths A, Baret JC. Tropfenbasierte Mikroreaktoren für die Synthese von magnetischen Eisenoxid-Nanopartikeln. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801360] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Andreyev HJN, Benamouzig R, Beranek M, Clarke P, Cunningham D, Norman AR, Giaretti W, de Goeij AFPM, Iacopetta BJ, Jullian E, Krtolica K, Lee JQ, Wang ST, Lees N, Al-Mulla F, Muller O, Pauly M, Pricolo V, Russo A, Troungos C, Urosevic N, Ward R. Mutant K-ras2 in serum. Gut 2003; 52:915-6. [PMID: 12740358 PMCID: PMC1773684 DOI: 10.1136/gut.52.6.915-a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Affiliation(s)
| | | | - M Beranek
- Charles University Hospital, Hradec Kralove, Czech Republic
| | - P Clarke
- Institute of Cancer Research, Sutton, UK
| | | | | | - W Giaretti
- Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy
| | | | - B J Iacopetta
- University of Western Australia, Nedlands, Australia
| | - E Jullian
- Groupe Hospitalier Cochin-Saint Vincent de Paul, Paris, France
| | - K Krtolica
- Institute of Nuclear Sciences “Vinca” Belgrade, Yugoslavia
| | - J Q Lee
- National Cheng Kung University, Taiwan
| | - S T Wang
- National Cheng Kung University, Taiwan
| | - N Lees
- Wythenshawe Hospital, Manchester, UK
| | | | - O Muller
- Max-Planck-Institut fur Molekulare Physiologie, Dortmund, Germany
| | - M Pauly
- Centre Universitaire de Luxembourg, Luxembourg
| | - V Pricolo
- Rhode Island Hospital, Brown University, USA
| | - A Russo
- University of Palermo, Italy
| | | | - N Urosevic
- Military Medical Academy, Belgrade, and University of Western Australia, Nedlands, Australia
| | - R Ward
- St Vincent’s Hospital, Darlinghurst, Australia
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