1
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Alvarado HL, Limón D, Calpena-Campmany AC, Mallandrich M, Rodríguez-Cid L, Aliaga-Alcalde N, González-Campo A, Pérez-García L. Intrinsic Permeation and Anti-Inflammatory Evaluation of Curcumin, Bisdemethoxycurcumin and Bisdemethylcurcumin by a Validated HPLC-UV Method. Int J Mol Sci 2023; 24:ijms24076640. [PMID: 37047613 PMCID: PMC10095365 DOI: 10.3390/ijms24076640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/17/2023] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
Curcumin shows anti-inflammatory activity, and it has been widely investigated for neurodegenerative diseases, adjuvant treatment in AIDS and antitumor activity against different tumors, among other activities. The goal of this work was to evaluate the capacity of curcumin and its derivatives (bisdemethoxycurcumin and bisdemethylcurcumin) in preventing the irritant effects of topically applied xylol and to assess the intrinsic capacity of curcuminoids in permeating human skin by ex vivo permeation tests. Its secondary goal was to validate an HPLC method to simultaneously determine the curcuminoids in the samples from the ex vivo permeation studies and drug extraction from the skin. Curcuminoid quantification was performed using an RP-C18 column, at isocratic conditions of elution and a detection wavelength of 265 nm. The method was specific with a suitable peak resolution, as well as linear, precise, and accurate in the range of 0.195–3.125 μg/mL for the three curcuminoids. Bisdemethylcurcumin showed the greatest permeation through the human skin, and it was the curcuminoid that was most retained within the human skin. The anti-inflammatory activity of the curcuminoids was evaluated in vivo using a xylol-induced inflammation model in rats. Histological studies were performed to observe any changes in morphology at the microscopic level, and these three curcuminoids were found to be respectful within the skin structure. These results show that these three curcuminoids are suitable for anti-inflammatory formulations for dermal applications, and they can be properly quantified using HPLC-UV.
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Affiliation(s)
- Helen-Lissette Alvarado
- Departament de Farmàcia i Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Av. Joan XXIII 27-31, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - David Limón
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
- Departament de Farmacologia, Toxicologia i Química Terapèutica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Ana-Cristina Calpena-Campmany
- Departament de Farmàcia i Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Av. Joan XXIII 27-31, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Mireia Mallandrich
- Departament de Farmàcia i Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Av. Joan XXIII 27-31, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Laura Rodríguez-Cid
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus of the Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Núria Aliaga-Alcalde
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus of the Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- ICREA—Catalan Institution for Research and Advanced Studies, Passeig Lluis Companys 23, 08010 Barcelona, Spain
| | - Arántzazu González-Campo
- Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus of the Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Lluïsa Pérez-García
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
- Departament de Farmacologia, Toxicologia i Química Terapèutica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Av. Joan XXIII 27-31, 08028 Barcelona, Spain
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2
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Riba-López D, Zaffino R, Herrera D, Matheu R, Silvestri F, Ferreira da Silva J, Sañudo EC, Mas-Torrent M, Barrena E, Pfattner R, Ruiz E, González-Campo A, Aliaga-Alcalde N. Dielectric behavior of curcuminoid polymorphs on different substrates by direct soft vacuum deposition. iScience 2022; 25:105686. [PMID: 36578318 PMCID: PMC9791350 DOI: 10.1016/j.isci.2022.105686] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/11/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Our work examines the structural-electronic correlation of a new curcuminoid, AlkCCMoid, as a dielectric material on different substrates. For this purpose, we show a homemade sublimation method that allows the direct deposition of molecules on any type of matrix. The electronic properties of AlkCCMoid have been evaluated by measurements on single crystals, microcrystalline powder, and sublimated samples, respectively. GIWAXS studies on surfaces and XRD studies on powder have revealed the existence of polymorphs and the effect that substrates have on curcuminoid organization. We describe the dielectric nature of our system and identify how different polymorphs can affect electronic parameters such as permittivity, all corroborated by DFT calculations.
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Affiliation(s)
- Daniel Riba-López
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain
| | - Rossella Zaffino
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain
| | - Daniel Herrera
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain
| | - Roc Matheu
- Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona Spain,Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, C/Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Francesco Silvestri
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain
| | - Jesse Ferreira da Silva
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain,University of Southampton, Chemistry, Highfield, Southampton, UK
| | - Eva Carolina Sañudo
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, C/Martí i Franqués 1-11, 08028 Barcelona, Spain,Institut de Nanociència i Nanotecnologia. Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Marta Mas-Torrent
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain
| | - Esther Barrena
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain
| | - Raphael Pfattner
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain,Corresponding author
| | - Eliseo Ruiz
- Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona Spain,Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, C/Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain,Corresponding author
| | - Núria Aliaga-Alcalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus Universitari, 08193 Bellaterra, Spain,ICREA (Institució Catalana de Recerca i Estudis Avançats) Passeig Lluïs Companys 23, 08010 Barcelona, Spain,Corresponding author
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3
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Gil Y, Gimeno-Muñoz R, Santana RCD, Aliaga-Alcalde N, Fuentealba P, Aravena D, González-Campo A, Spodine E. Luminescence of Macrocyclic Mononuclear Dy III Complexes and Their Immobilization on Functionalized Silicon-Based Surfaces. Inorg Chem 2022; 61:16347-16355. [PMID: 36198146 DOI: 10.1021/acs.inorgchem.2c02342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two mononuclear DyIII complexes, [Dy(L1)(NCS)3] (Dy-EDA) and [Dy(L2)(NCS)3] (Dy-DAP), where Ln (n = 1-2) corresponds to a macrocyclic ligand derived from 2,6-pyridinedicarboxaldehyde and ethylenediamine (L1) and 1,3-diaminepropane (L2) were immobilized on functionalized silicon-based surfaces. This was achieved by the microcontact printing (μCP) technique, generating patterns on a functionalized surface via covalent bond formation through the auxiliary -NCS ligands present in the macrocyclic complex species. With this strategy, it was possible to control the position of the immobilized molecules on the surface. Water contact angle measurements, X-ray photoelectron spectroscopy (XPS), infrared reflection absorption spectra (IRRAS), and atomic force microscopy (AFM) confirmed that the surfaces were successfully functionalized. Furthermore, the optical properties in a broad temperature range were investigated for the as-prepared compounds. At room temperature, Dy-EDA was shown to emit in the deep blue region (Commission Internationald'Eclairage (CIE): (0.175, 0.128)), while Dy-DAP in the white region (CIE: (0.252, 0.312)). The different CIE values were due to the contribution of the strong emission of the ligand in the case of Dy-EDA. Besides, surface photoluminescence measurements showed that the immobilized complexes retained their bulk emissive properties.
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Affiliation(s)
- Yolimar Gil
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 8380544, Chile.,Centro para el Desarrollo de la Nanociencia y Nanotecnología (CEDENNA), Santiago 9170022, Chile
| | - Raquel Gimeno-Muñoz
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Ricardo Costa de Santana
- Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Núria Aliaga-Alcalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193 Barcelona, Spain.,ICREA─Institució Catalana de Recerca i Estudis Avançats, Passeig Lluis Companys 23, 08010 Barcelona, Spain
| | - Pablo Fuentealba
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 8380544, Chile
| | - Daniel Aravena
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Evgenia Spodine
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 8380544, Chile.,Centro para el Desarrollo de la Nanociencia y Nanotecnología (CEDENNA), Santiago 9170022, Chile
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4
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Aragonès AC, Martín-Rodríguez A, Aravena D, di Palma G, Qian W, Puigmartí-Luis J, Aliaga-Alcalde N, González-Campo A, Díez-Pérez I, Ruiz E. Room-Temperature Spin-Dependent Transport in Metalloporphyrin-Based Supramolecular Wires. Angew Chem Int Ed Engl 2021; 60:25958-25965. [PMID: 34726815 PMCID: PMC9298358 DOI: 10.1002/anie.202110515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/23/2021] [Indexed: 11/17/2022]
Abstract
Here we present room‐temperature spin‐dependent charge transport measurements in single‐molecule junctions made of metalloporphyrin‐based supramolecular assemblies. They display large conductance switching for magnetoresistance in a single‐molecule junction. The magnetoresistance depends acutely on the probed electron pathway through the supramolecular wire: those involving the metal center showed marked magnetoresistance effects as opposed to those exclusively involving the porphyrin ring which present nearly complete absence of spin‐dependent charge transport. The molecular junction magnetoresistance is highly anisotropic, being observable when the magnetization of the ferromagnetic junction electrode is oriented along the main molecular junction axis, and almost suppressed when it is perpendicular. The key ingredients for the above effect to manifest are the electronic structure of the paramagnetic metalloporphyrin, and the spinterface created at the molecule–electrode contact.
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Affiliation(s)
- Albert C Aragonès
- Department of Chemistry, Faculty of Natural & Mathematical Sciences, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, United Kingdom.,Current address: Molecular Spectroscopy Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Alejandro Martín-Rodríguez
- Departament de Química Inorgànica i Orgànica, Diagonal 645, 08028, Barcelona, Spain.,Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028, Barcelona, Spain
| | - Daniel Aravena
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Casilla 40, Correo 33, Chile
| | - Giuseppe di Palma
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Wenjie Qian
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Josep Puigmartí-Luis
- Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028, Barcelona, Spain.,ICREA (Institució Catalana de Recerca i Estudis Avançats), Passeig Lluis Companys 23, 08010, Barcelona, Spain.,Departament de Ciència dels Materials i Química Física, Diagonal 645, 08028, Barcelona, Spain
| | - Núria Aliaga-Alcalde
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain.,ICREA (Institució Catalana de Recerca i Estudis Avançats), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | | | - Ismael Díez-Pérez
- Department of Chemistry, Faculty of Natural & Mathematical Sciences, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, United Kingdom
| | - Eliseo Ruiz
- Departament de Química Inorgànica i Orgànica, Diagonal 645, 08028, Barcelona, Spain.,Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028, Barcelona, Spain
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5
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Rodríguez-Cid L, Qian W, Iribarra-Araya J, Etcheverry-Berríos Á, Martínez-Olmos E, Choquesillo-Lazarte D, Sañudo EC, Roubeau O, López-Periago AM, González-Campo A, Planas JG, Soler M, Domingo C, Aliaga-Alcalde N. Broadening the scope of high structural dimensionality nanomaterials using pyridine-based curcuminoids. Dalton Trans 2021; 50:7056-7064. [PMID: 33949538 PMCID: PMC8145613 DOI: 10.1039/d1dt00708d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a new heteroditopic ligand (3pyCCMoid) that contains the typical skeleton of a curcuminoid (CCMoid) decorated with two 3-pyridyl groups. The coordination of 3pyCCMoid with ZnII centres results in a set of novel coordination polymers (CPs) that display different architectures and dimensionalities (from 1D to 3D). Our work analyses how synthetic methods and slight changes in the reaction conditions affect the formation of the final materials. Great efforts have been devoted toward understanding the coordination entities that provide high dimensional systems, with emphasis on the characterization of 2D materials, including analyses of different types of substrates, stability and exfoliation in water. Here, we foresee the great use of CCMoids in the field of CPs and emphasize 3pyCCMoid as a new-born linker.
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Affiliation(s)
- Laura Rodríguez-Cid
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - Wenjie Qian
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - Joseline Iribarra-Araya
- Department of Chemical Engineering, Biotechnology and Materials, Faculty of Physical and Mathematical Sciences, University of Chile, Beauchef 851, Santiago, 837.0415, Chile.
| | - Álvaro Etcheverry-Berríos
- Department of Chemical Engineering, Biotechnology and Materials, Faculty of Physical and Mathematical Sciences, University of Chile, Beauchef 851, Santiago, 837.0415, Chile.
| | - Eulalia Martínez-Olmos
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 - Armilla, Granada, Spain
| | - Eva Carolina Sañudo
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, C/Martí i Franqués 1-11, 08028 Barcelona, Spain and Institut de Nanociència i Nanotecnologia. Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Olivier Roubeau
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC and Universidad de Zaragoza, Plaza San Francisco s/n, 50009 Zaragoza, Spain
| | - Ana María López-Periago
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - José G Planas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - Mònica Soler
- Department of Chemical Engineering, Biotechnology and Materials, Faculty of Physical and Mathematical Sciences, University of Chile, Beauchef 851, Santiago, 837.0415, Chile.
| | - Concepción Domingo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain.
| | - Núria Aliaga-Alcalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain. and ICREA - Institució Catalana de Recerca i Estudis Avançats, Passeig Lluis Companys 23, 08010 Barcelona, Spain
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6
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Riba-Moliner M, Oliveras-González C, Amabilino DB, González-Campo A. Supramolecular block copolymers incorporating chiral and achiral chromophores for the bottom-up assembly of nanomaterials. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500809] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The coordination of the chiral metalloporphyrin ([5,10,15,20-[4-([Formula: see text]-2-[Formula: see text]-octadecylamidoethyloxiphenyl]porphyrin] zinc (II)) and an achiral homologue to an amphiphilic block copolymer of poly(styrene-[Formula: see text]-4-vinyl pyridine) (PS-[Formula: see text]-P4VP) have been studied in solution and as cast material. The resulting chiral dye-polymer hybrid material has been accomplished via axial coordination between the zinc (II) metal ion in the core of the porphyrin ring and the pyridyl units of the block-copolymer in a non-coordinative solvent. The supramolecular organization and possible chirality transfer to the hybrid material have been studied in solution by UV-visible absorption spectroscopy, fluorescence spectroscopy, Nuclear Magnetic Resonance and Circular Dichroism. The morphology of the chiral and achiral doped polymers has been studied in solid state by Transmission Electron Microscopy and Atomic Force Microscopy. We show that the nanostructures formed depend greatly upon the nature of the side-chains on the porphyrins, where a chiral group leads to a very homogeneous phase-separated material, perhaps indicating that chiral side groups are useful for the preparation of this type of supramolecular hybrid.
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Affiliation(s)
- Marta Riba-Moliner
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Catalonia, Spain
| | - Cristina Oliveras-González
- Université d’Angers, CNRS Laboratoire MOLTECH-Anjou, UMR 6200, UFR Science, Bât. K, 2 Bd. Lavoisier, 49045 Angers, France
| | - David B. Amabilino
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Catalonia, Spain
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7
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Qian W, González-Campo A, Pérez-Rodríguez A, Rodríguez-Hermida S, Imaz I, Wurst K, Maspoch D, Ruiz E, Ocal C, Barrena E, Amabilino DB, Aliaga-Alcalde N. Boosting Self-Assembly Diversity in the Solid-State by Chiral/Non-Chiral Zn II -Porphyrin Crystallization. Chemistry 2018; 24:12950-12960. [PMID: 29893444 DOI: 10.1002/chem.201802031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 04/23/2018] [Revised: 06/05/2018] [Indexed: 01/11/2023]
Abstract
A chiral ZnII porphyrin derivative 1 and its achiral analogue 2 were studied in the solid state. Considering the rich molecular recognition of designed metalloporphyrins 1 and 2 and their tendency to crystallize, they were recrystallized from two solvent mixtures (CH2 Cl2 /CH3 OH and CH2 Cl2 /hexane). As a result, four different crystalline arrangements (1 a,b and 2 a,b, from 0D to 2D) were obtained. Solid-state studies were performed on all the species to analyze the role played by chirality, solvent mixtures, and surfaces (mica and HOPG) in the supramolecular arrangements. By means of combinations of solvents and substrates a variety of microsized species was obtained, from vesicles to flower-shaped arrays, including geometrical microcrystals. Overall, the results emphasize the environmental susceptibility of metalloporphyrins and how this feature must be taken into account in their design.
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Affiliation(s)
- Wenjie Qian
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193, Bellaterra, Spain
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193, Bellaterra, Spain
| | - Ana Pérez-Rodríguez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193, Bellaterra, Spain
| | - Sabina Rodríguez-Hermida
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Inhaz Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Klaus Wurst
- Institut für Allgemeine Anorganische und Theoretische Chemie, Universität Innsbruck, Innrain 52a, 6020, Innsbruck, Austria
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain.,ICREA (Institució Catalana de Recerca i Estudis Avançats), Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, 08007, Barcelona, Spain.,Institut de Química Teórica i Computacional, de la Universitat de Barcelona (IQTCUB), 08007, Barcelona, Spain
| | - Carmen Ocal
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193, Bellaterra, Spain
| | - Esther Barrena
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193, Bellaterra, Spain
| | - David B Amabilino
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Núria Aliaga-Alcalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193, Bellaterra, Spain.,ICREA (Institució Catalana de Recerca i Estudis Avançats), Passeig Lluís Companys 23, 08010, Barcelona, Spain
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8
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Muñoz J, González-Campo A, Riba-Moliner M, Baeza M, Mas-Torrent M. Chiral magnetic-nanobiofluids for rapid electrochemical screening of enantiomers at a magneto nanocomposite graphene-paste electrode. Biosens Bioelectron 2018; 105:95-102. [PMID: 29412951 DOI: 10.1016/j.bios.2018.01.024] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [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: 10/21/2017] [Revised: 01/04/2018] [Accepted: 01/11/2018] [Indexed: 11/28/2022]
Abstract
The development of highly sensitive and selective enantiomeric platforms towards the rapid screening of active pharmaceutical ingredients (APIs) is nowadays a crucial challenge in several fields related to pharmacology, biomedicine, biotechnology and (bio)sensors. Herein, it is presented a novel, facile and generic methodology focused on exploiting the synergistically and electrocatalytic properties of chiral magnetic-nanobiofluids (mNBFs) with electrochemical enantiobiosensing at a magneto nanocomposite graphene paste electrode (mNC-GPE). The feasibility of this approach has been validated by chirally recognizing tryptophan (TRP) enantiomers as a proof-of-concept. For this aim, a specific chiral mNBF based on an aqueous dispersion of cobalt ferrite loaded with gold nanoparticles carrying a thiolated β-cyclodextrin (β-CD-SH/Au/CoFe2O4-NPs) has been synthesized and used towards the supramolecular discrimination of TRP enantiomers at an advanced graphene-paste transducer via cyclic voltammetry. This strategy, which is the first demonstration of applicability of chiral mNBFs for electrochemical enantiorecognition, opens up new approaches into enantio(bio)sensing.
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Affiliation(s)
- J Muñoz
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain.
| | - A González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - M Riba-Moliner
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - M Baeza
- GENOCOV Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, Campus UAB, 08193 Bellaterra, Spain
| | - M Mas-Torrent
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain; Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Campus de la UAB, 08193 Bellaterra, Spain
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9
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Ye L, González-Campo A, Kudernac T, Núñez R, de Jong M, van der Wiel WG, Huskens J. Monolayer Contact Doping from a Silicon Oxide Source Substrate. Langmuir 2017; 33:3635-3638. [PMID: 28351137 PMCID: PMC5397885 DOI: 10.1021/acs.langmuir.7b00157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/21/2017] [Indexed: 06/06/2023]
Abstract
Monolayer contact doping (MLCD) is a modification of the monolayer doping (MLD) technique that involves monolayer formation of a dopant-containing adsorbate on a source substrate. This source substrate is subsequently brought into contact with the target substrate, upon which the dopant is driven into the target substrate by thermal annealing. Here, we report a modified MLCD process, in which we replace the commonly used Si source substrate by a thermally oxidized substrate with a 100 nm thick silicon oxide layer, functionalized with a monolayer of a dopant-containing silane. The thermal oxide potentially provides a better capping effect and effectively prevents the dopants from diffusing back into the source substrate. The use of easily accessible and processable silane monolayers provides access to a general and modifiable process for the introduction of dopants on the source substrate. As a proof of concept, a boron-rich carboranyl-alkoxysilane was used here to construct the monolayer that delivers the dopant, to boost the doping level in the target substrate. X-ray photoelectron spectroscopy (XPS) showed a successful grafting of the dopant adsorbate onto the SiO2 surface. The achieved doping levels after thermal annealing were similar to the doping levels acessible by MLD as demonstrated by secondary ion mass spectrometry measurements. The method shows good prospects, e.g. for use in the doping of Si nanostructures.
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Affiliation(s)
- Liang Ye
- Molecular
NanoFabrication and NanoElectronics groups, MESA+ Institute for
Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Arántzazu González-Campo
- Functional Nanomaterials and Surfaces and Inorganic Materials and Catalysis
groups, Institut de Ciència de Materials
de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193, Bellaterra, Spain
| | - Tibor Kudernac
- Molecular
NanoFabrication and NanoElectronics groups, MESA+ Institute for
Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Rosario Núñez
- Functional Nanomaterials and Surfaces and Inorganic Materials and Catalysis
groups, Institut de Ciència de Materials
de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193, Bellaterra, Spain
| | - Michel de Jong
- Molecular
NanoFabrication and NanoElectronics groups, MESA+ Institute for
Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Wilfred G. van der Wiel
- Molecular
NanoFabrication and NanoElectronics groups, MESA+ Institute for
Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jurriaan Huskens
- Molecular
NanoFabrication and NanoElectronics groups, MESA+ Institute for
Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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10
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Limón D, Jiménez-Newman C, Calpena AC, González-Campo A, Amabilino DB, Pérez-García L. Microscale coiling in bis-imidazolium supramolecular hydrogel fibres induced by the release of a cationic serine protease inhibitor. Chem Commun (Camb) 2017; 53:4509-4512. [DOI: 10.1039/c6cc09392b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A gemini dicationic amphiphile forms gels with a serine protease inhibitor, which could be used in a new approach to the treatment of Rosacea, and the release of the drug causes remarkable gel fibre coiling.
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Affiliation(s)
- David Limón
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Claire Jiménez-Newman
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ana C. Calpena
- Institut de Nanociència i Nanotecnologia IN2UB
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Departament de Farmàcia
| | | | - David B. Amabilino
- School of Chemistry
- University of Nottingham
- UK
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry
- The University of Nottingham
| | - Lluïsa Pérez-García
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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11
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Riba-Moliner M, Avarvari N, Amabilino DB, González-Campo A, Gómez A. Distinguishing between Mechanical and Electrostatic Interaction in Single Pass Multi Frequency Electrostatic Force Microscopy Measurements on a Molecular Material. Langmuir 2016; 32:13593-13599. [PMID: 27977212 DOI: 10.1021/acs.langmuir.6b03390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Single-pass electrostatic force microscopy is postulated as one of the most advanced techniques in terms of spatial resolution and fastness in data acquisition for the study of electrostatic phenomena at the nanoscale. However, crosstalk anomalies, in which mechanical interactions combine with tip-sample electrostatic forces, are still a major issue to overcome, specifically in soft and biological samples. In this paper we propose a novel method based on bimodal-atomic force microscopy to distinguish mechanical crosstalk from electrostatic images. The method is based in the comparison of bimodal AFM images with electrostatic ones, where pure mechanical interaction can be discerned from a mixture of mechanical and electrostatic interactions. The proposed method is optimized and demonstrated using a supramolecular charge transfer material. Finally, the method is used as a tool to depict different crosstalk levels in tetrathiafulvalene-based (TTF) assemblies, discerning between electrical and mechanical interactions. This kind of observation is important for obtaining accurate descriptions of charge distribution in samples made from organic and molecular layers and materials.
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Affiliation(s)
- Marta Riba-Moliner
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08913 Bellaterra, Barcelona, Spain
| | - Narcis Avarvari
- Laboratoire MOLTECH-Anjou UMR 6200, UFR Sciences, CNRS, Université d'Angers , Bât. K, 2 Bd. Lavoisier, 49045 Angers, France
| | - David B Amabilino
- School of Chemistry, The University of Nottingham , University Park, Nottingham NG72RD, United Kingdom
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08913 Bellaterra, Barcelona, Spain
| | - Andrés Gómez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08913 Bellaterra, Barcelona, Spain
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12
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Noori M, Aragonès AC, Di Palma G, Darwish N, Bailey SWD, Al-Galiby Q, Grace I, Amabilino DB, González-Campo A, Díez-Pérez I, Lambert CJ. Tuning the electrical conductance of metalloporphyrin supramolecular wires. Sci Rep 2016; 6:37352. [PMID: 27869128 PMCID: PMC5116753 DOI: 10.1038/srep37352] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 06/27/2016] [Accepted: 10/21/2016] [Indexed: 12/29/2022] Open
Abstract
In contrast with conventional single-molecule junctions, in which the current flows parallel to the long axis or plane of a molecule, we investigate the transport properties of M(II)-5,15-diphenylporphyrin (M-DPP) single-molecule junctions (M=Co, Ni, Cu, or Zn divalent metal ions), in which the current flows perpendicular to the plane of the porphyrin. Novel STM-based conductance measurements combined with quantum transport calculations demonstrate that current-perpendicular-to-the-plane (CPP) junctions have three-orders-of-magnitude higher electrical conductances than their current-in-plane (CIP) counterparts, ranging from 2.10−2 G0 for Ni-DPP up to 8.10−2 G0 for Zn-DPP. The metal ion in the center of the DPP skeletons is strongly coordinated with the nitrogens of the pyridyl coated electrodes, with a binding energy that is sensitive to the choice of metal ion. We find that the binding energies of Zn-DPP and Co-DPP are significantly higher than those of Ni-DPP and Cu-DPP. Therefore when combined with its higher conductance, we identify Zn-DPP as the favoured candidate for high-conductance CPP single-molecule devices.
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Affiliation(s)
- Mohammed Noori
- Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK.,Department of Physics, Collage of Science, Thi-Qar University, Iraq
| | - Albert C Aragonès
- Department of Physical Chemistry, University of Barcelona, Diagonal 645, Spain.,Institute for Bioengineering of Catalonia (IBEC) Baldiri Reixac 15-21, 08028 Barcelona, Catalonia, Spain.,Centro Investigación Biomédica en Red (CIBER-BBN). Campus Río Ebro-Edificio I+D, Poeta Mariano Esquillor s/n, 50018 Zaragoza, Spain
| | - Giuseppe Di Palma
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Catalonia, Spain
| | - Nadim Darwish
- Department of Physical Chemistry, University of Barcelona, Diagonal 645, Spain.,Institute for Bioengineering of Catalonia (IBEC) Baldiri Reixac 15-21, 08028 Barcelona, Catalonia, Spain
| | | | - Qusiy Al-Galiby
- Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK.,Physics Department, College of Education, Al-Qadisiyah University, Iraq
| | - Iain Grace
- Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK
| | - David B Amabilino
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Catalonia, Spain
| | - Ismael Díez-Pérez
- Department of Physical Chemistry, University of Barcelona, Diagonal 645, Spain.,Institute for Bioengineering of Catalonia (IBEC) Baldiri Reixac 15-21, 08028 Barcelona, Catalonia, Spain.,Centro Investigación Biomédica en Red (CIBER-BBN). Campus Río Ebro-Edificio I+D, Poeta Mariano Esquillor s/n, 50018 Zaragoza, Spain
| | - Colin J Lambert
- Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK
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13
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Riba-Moliner M, Gómez-Rodríguez A, Amabilino DB, Puigmartí-Luis J, González-Campo A. Functional supramolecular tetrathiafulvalene-based films with mixed valences states. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Patiño T, Soriano J, Amirthalingam E, Durán S, González-Campo A, Duch M, Ibáñez E, Barrios L, Plaza JA, Pérez-García L, Nogués C. Polysilicon-chromium-gold intracellular chips for multi-functional biomedical applications. Nanoscale 2016; 8:8773-8783. [PMID: 27064355 DOI: 10.1039/c5nr09022a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The development of micro- and nanosystems for their use in biomedicine is a continuously growing field. One of the major goals of such platforms is to combine multiple functions in a single entity. However, achieving the design of an efficient and safe micro- or nanoplatform has shown to be strongly influenced by its interaction with the biological systems, where particle features or cell types play a critical role. In this work, the feasibility of using multi-material pSi-Cr-Au intracellular chips (MMICCs) for multifunctional applications by characterizing their interactions with two different cell lines, one tumorigenic and one non-tumorigenic, in terms of biocompatibility, internalization and intracellular fate, has been explored. Moreover, the impact of MMICCs on the induction of an inflammatory response has been assessed by evaluating TNFα, IL1b, IL6, and IL10 human inflammatory cytokines secretion by macrophages. Results show that MMICCs are biocompatible and their internalization efficiency is strongly dependent on the cell type. Finally as a proof-of-concept, MMICCs have been dually functionalized with transferrin and pHrodo™ Red, SE to target cancer cells and detect intracellular pH, respectively. In conclusion, MMICCs can be used as multi-functional devices due to their high biocompatibility, non-inflammatory properties and the ability of developing multiple functions.
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Affiliation(s)
- Tania Patiño
- Unitat de Biologia Cellular, Departament de Biologia Cellular, Fisiologia i Immunologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, 08193, Spain.
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15
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Muñoz J, Riba-Moliner M, Brennan LJ, Gun’ko YK, Céspedes F, González-Campo A, Baeza M. Amperometric thyroxine sensor using a nanocomposite based on graphene modified with gold nanoparticles carrying a thiolated β-cyclodextrin. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1783-x] [Citation(s) in RCA: 31] [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: 11/29/2022]
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16
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Burzurí E, Island JO, Díaz-Torres R, Fursina A, González-Campo A, Roubeau O, Teat SJ, Aliaga-Alcalde N, Ruiz E, van der Zant HSJ. Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes. ACS Nano 2016; 10:2521-2527. [PMID: 26841282 DOI: 10.1021/acsnano.5b07382] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graphene electrodes are promising candidates to improve reproducibility and stability in molecular electronics through new electrode-molecule anchoring strategies. Here we report sequential electron transport in few-layer graphene transistors containing individual curcuminoid-based molecules anchored to the electrodes via π-π orbital bonding. We show the coexistence of inelastic co-tunneling excitations with single-electron transport physics due to an intermediate molecule-electrode coupling; we argue that an intermediate electron-phonon coupling is the origin of these vibrational-assisted excitations. These experimental observations are complemented with density functional theory calculations to model electron transport and the interaction between electrons and vibrational modes of the curcuminoid molecule. We find that the calculated vibrational modes of the molecule are in agreement with the experimentally observed excitations.
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Affiliation(s)
- Enrique Burzurí
- Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - Joshua O Island
- Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - Raúl Díaz-Torres
- CSIC-ICMAB (Institut de Ciència dels Materials de Barcelona), Campus de la Universitat Autònoma de Barcelona , 08193 Bellaterra, Spain
| | - Alexandra Fursina
- Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - Arántzazu González-Campo
- CSIC-ICMAB (Institut de Ciència dels Materials de Barcelona), Campus de la Universitat Autònoma de Barcelona , 08193 Bellaterra, Spain
| | - Olivier Roubeau
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC, and Universidad de Zaragoza , Plaza San Francisco s/n, 50009 Zaragoza, Spain
| | - Simon J Teat
- Advanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Núria Aliaga-Alcalde
- CSIC-ICMAB (Institut de Ciència dels Materials de Barcelona), Campus de la Universitat Autònoma de Barcelona , 08193 Bellaterra, Spain
- ICREA (Institució Catalana de Recerca i Estudis Avançats) , Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | | | - Herre S J van der Zant
- Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628 CJ Delft, The Netherlands
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Ye L, González-Campo A, Núñez R, de Jong MP, Kudernac T, van der Wiel WG, Huskens J. Boosting the Boron Dopant Level in Monolayer Doping by Carboranes. ACS Appl Mater Interfaces 2015; 7:27357-61. [PMID: 26595856 DOI: 10.1021/acsami.5b08952] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Monolayer doping (MLD) presents an alternative method to achieve silicon doping without causing crystal damage, and it has the capability of ultrashallow doping and the doping of nonplanar surfaces. MLD utilizes dopant-containing alkene molecules that form a monolayer on the silicon surface using the well-established hydrosilylation process. Here, we demonstrate that MLD can be extended to high doping levels by designing alkenes with a high content of dopant atoms. Concretely, carborane derivatives, which have 10 B atoms per molecule, were functionalized with an alkene group. MLD using a monolayer of such a derivative yielded up to ten times higher doping levels, as measured by X-ray photoelectron spectroscopy and dynamic secondary mass spectroscopy, compared to an alkene with a single B atom. Sheet resistance measurements showed comparably increased conductivities of the Si substrates. Thermal budget analyses indicate that the doping level can be further optimized by changing the annealing conditions.
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Affiliation(s)
- Liang Ye
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
| | - Arántzazu González-Campo
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
| | - Rosario Núñez
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
| | - Michel P de Jong
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
| | - Tibor Kudernac
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
| | - Wilfred G van der Wiel
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
| | - Jurriaan Huskens
- Molecular NanoFabrication group and ‡NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
- Functional Nanomaterials and Surfaces group and ∥Inorganic Materials and Catalysis group, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de la UAB, 08193, Bellaterra, Spain
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18
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Oliveras-González C, Di Meo F, González-Campo A, Beljonne D, Norman P, Simón-Sorbed M, Linares M, Amabilino DB. Bottom-Up Hierarchical Self-Assembly of Chiral Porphyrins through Coordination and Hydrogen Bonds. J Am Chem Soc 2015; 137:15795-808. [PMID: 26595320 DOI: 10.1021/jacs.5b08081] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A series of chiral synthetic compounds is reported that shows intricate but specific hierarchical assembly because of varying positions of coordination and hydrogen bonds. The evolution of the aggregates (followed by absorption spectroscopy and temperature-dependent circular dichroism studies in solution) reveal the influence of the proportion of stereogenic centers in the side groups connected to the chromophore ring in their optical activity and the important role of pyridyl groups in the self-assembly of these chiral macrocycles. The optical activity spans 2 orders of magnitude depending on composition and constitution. Two of the aggregates show very high optical activity even though the isolated chromophores barely give a circular dichroism signal. Molecular modeling of the aggregates, starting from the pyridine-zinc(II) porphyrin interaction and working up, and calculation of the circular dichroism signal confirm the origin of this optical activity as the chiral supramolecular organization of the molecules. The aggregates show a broad absorption range, between approximately 390 and 475 nm for the transitions associated with the Soret region alone, that spans wavelengths far more than the isolated chromophore. The supramolecular assemblies of the metalloporphyrins in solution were deposited onto highly oriented pyrolitic graphite in order to study their hierarchy in assembly by atomic force microscopy. Zero and one-dimensional aggregates were observed, and a clear dependence on deposition temperature was shown, indicating that the hierarchical assembly took place largely in solution. Moreover, scanning electron microscopy images of porphyrins and metalloporphyrins precipitated under out-of-equilibrium conditions showed the dependence of the number and position of chiral amide groups in the formation of a fibrillar nanomaterial. The combination of coordination and hydrogen bonding in the complicated assembly of these molecules-where there is a clear hierarchy for zinc(II)-pyridyl interaction followed by hydrogen-bonding between amide groups, and then van der Waals interactions-paves the way for the preparation of molecular materials with multiple chromophore environments.
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Affiliation(s)
- Cristina Oliveras-González
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra , 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Florent Di Meo
- Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-58 583 Linköping, Sweden
| | - Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra , 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - David Beljonne
- Laboratory of Chemistry for Novel Materials, Mons University , Place du Parc, Mons B-9000, Belgium
| | - Patrick Norman
- Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-58 583 Linköping, Sweden
| | - Maite Simón-Sorbed
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra , 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Mathieu Linares
- Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-58 583 Linköping, Sweden
| | - David B Amabilino
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra , 08193 Cerdanyola del Vallès, Catalonia, Spain.,School of Chemistry, The University of Nottingham , University Park, Nottingham NG7 2RD, United Kingdom
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Cabana L, González-Campo A, Ke X, Van Tendeloo G, Núñez R, Tobias G. Efficient Chemical Modification of Carbon Nanotubes with Metallacarboranes. Chemistry 2015; 21:16792-5. [DOI: 10.1002/chem.201503096] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 09/18/2015] [Indexed: 11/07/2022]
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Ferrer-Ugalde A, González-Campo A, Viñas C, Rodríguez-Romero J, Santillan R, Farfán N, Sillanpää R, Sousa-Pedrares A, Núñez R, Teixidor F. Fluorescence of new o-carborane compounds with different fluorophores: can it be tuned? Chemistry 2014; 20:9940-51. [PMID: 24976049 DOI: 10.1002/chem.201402396] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [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: 02/27/2014] [Revised: 04/10/2014] [Indexed: 11/06/2022]
Abstract
Two sets of o-carborane derivatives incorporating fluorene and anthracene fragments as fluorophore groups have been successfully synthesized and characterized, and their photophysical properties studied. The first set, comprising fluorene-containing carboranes 6-9, was prepared by catalyzed hydrosilylation reactions of ethynylfluorene with appropriate carboranylsilanes. The compound 1-[(9,9-dioctyl-fluorene-2-yl)ethynyl]carborane (11) was synthesized by the reaction of 9,9-dioctyl-2-ethynylfluorene and decaborane (B10H14). Furthermore, reactions of the lithium salt of 11 with 1 equivalent of 4-(chloromethyl)styrene or 9-(chloromethyl)anthracene yielded compounds 12 and 13. Members of the second set of derivatives, comprising anthracene-containing carboranes, were synthesized by reactions of monolithium or dilithium salts of 1-Me-1,2-C2B10H11, 1-Ph-1,2-C2B10H11, and 1,2-C2B10H12 with 1 or 2 equivalents of 9-(chloromethyl)anthracene, respectively, to produce compounds 14-16. In addition, 2 equivalents of the monolithium salts of 1-Me-1,2-C2B10H11 (Me-o-carborane) and 1-Ph-1,2-C2B10H11 (Ph-o-carborane) were reacted with 9,10-bis(chloromethyl)anthracene to produce compounds 17 and 18, respectively. Fluorene derivatives 6-9 exhibit moderate fluorescence quantum yields (32-44 %), whereas 11-13, in which the fluorophore is bonded to the Ccluster (Cc), show very low emission intensity (6 %) or complete fluorescence quenching. The anthracenyl derivatives containing the Me-o-carborane moiety exhibit notably high fluorescence emissions, with ϕF = 82 and 94 %, whereas their Ph-o-carborane analogues are not fluorescent at all. For these compounds, we have observed a correlation between the Cc-Cc bond length and the fluorescence intensity in CH2Cl2 solution, comparable to that observed for previously reported styrene-containing carboranes. Thus, our hypothesis is that for systems of this type the fluorescence may be tuned and even predicted by changing the substituent on the adjacent Cc.
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Affiliation(s)
- Albert Ferrer-Ugalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus U.A.B., 08193 Bellaterra, Barcelona (Spain)
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González-Campo A, Ferrer-Ugalde A, Viñas C, Teixidor F, Sillanpää R, Rodríguez-Romero J, Santillan R, Farfán N, Núñez R. A Versatile Methodology for the Controlled Synthesis of Photoluminescent High-Boron-Content Dendrimers. Chemistry 2013; 19:6299-312. [DOI: 10.1002/chem.201203771] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 01/23/2012] [Indexed: 11/07/2022]
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Abstract
Interfaces are a most important environment in natural and synthetic chemistries for a wide variety of processes, such as catalysis, recognition, separation, and so on. Naturally occurring systems have evolved to one handedness and the study of interfaces where biomolecules are located is a potentially revealing pursuit with regard to understanding the reasons and importance of stereochemistry in these environments. Equally, the spontaneous resolution of achiral and chiral compounds at interfaces could lead to explanations regarding the emergence of single handedness in proteins and sugars. Also, the attachment of biomolecules to surfaces leads to systems capable of stereoselective processes which may be useful for the applications mentioned above. The review covers systems ranging from small biomolecules studied under ultrapure conditions in vacuum to protein adsorption to surfaces in solution, and the techniques that can be used to study them.
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Affiliation(s)
- Arántzazu González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, 08193, Cerdanyola del Vallès, Catalonia, Spain
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González-Campo A, Brasch M, Uhlenheuer DA, Gómez-Casado A, Yang L, Brunsveld L, Huskens J, Jonkheijm P. Supramolecularly oriented immobilization of proteins using cucurbit[8]uril. Langmuir 2012; 28:16364-16371. [PMID: 23134267 DOI: 10.1021/la303987c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A supramolecular strategy is used for oriented positioning of proteins on surfaces. A viologen-based guest molecule is attached to the surface, while a naphthol guest moiety is chemoselectively ligated to a yellow fluorescent protein. Cucurbit[8]uril (CB[8]) is used to link the proteins onto surfaces through specific charge-transfer interactions between naphthol and viologen inside the CB cavity. The assembly process is characterized using fluorescence and atomic force microscopy, surface plasmon resonance, IR-reflective absorption, and X-ray photoelectron spectroscopy measurements. Two different immobilization routes are followed to form patterns of the protein ternary complexes on the surfaces. Each immobilization route consists of three steps: (i) attaching the viologen to the glass using microcontact chemistry, (ii) blocking, and (iii) either incubation or microcontact printing of CB[8] and naphthol guests. In both cases uniform and stable fluorescent patterns are fabricated with a high signal-to-noise ratio. Control experiments confirm that CB[8] serves as a selective linking unit to form stable and homogeneous ternary surface-bound complexes as envisioned. The attachment of the yellow fluorescent protein complexes is shown to be reversible and reusable for assembly as studied using fluorescence microscopy.
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Affiliation(s)
- Arántzazu González-Campo
- Molecular Nanofabrication Group, Department of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
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González-Campo A, Eker B, Gardeniers HJGE, Huskens J, Jonkheijm P. A supramolecular approach to enzyme immobilization in micro-channels. Small 2012; 8:3531-3537. [PMID: 22887837 DOI: 10.1002/smll.201200565] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [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: 03/14/2012] [Revised: 06/14/2012] [Indexed: 06/01/2023]
Abstract
A supramolecular assembly scheme is developed to enable the facile in-situ immobilization of enzymes in a microfluidic channel system. A combination of orthogonal supramolecular interactions of host (β-cyclodextrin)-guest (adamantane) and biotin-Streptavidin (SAv) interactions are employed to generate reusable homogeneous enzyme layers in microchannels. The structural integrity and catalytic activity of the immobilized enzyme calf-intestine alkaline phosphatase (AlkPh) is demonstrated. From the kinetic analysis of a dephosphorylation reaction, the specificity constant k(cat)/K(M) for immobilized alkaline phosphatase in the channels is on the order of 10(5) M(-1) s(-1) and comparable to known literature values in other environments. These observations are ascribed to the good access of the substrate to favorably oriented enzymes across the microchannel. Therefore, this study demonstrates the great potential for adopting a supramolecular assembly scheme to immobilize enzymes in microfluidic devices.
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Affiliation(s)
- Arántzazu González-Campo
- Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Netherlands
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González-Campo A, Hsu SH, Puig L, Huskens J, Reinhoudt DN, Velders AH. Orthogonal covalent and noncovalent functionalization of cyclodextrin-alkyne patterned surfaces. J Am Chem Soc 2010; 132:11434-6. [PMID: 20677748 DOI: 10.1021/ja1048658] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The creation of cyclodextrin patterns on a fluorescent reporter surface by microcontact printing provides a versatile orthogonal surface modification method. The alkyne-beta-cyclodextrin surface is prepared through a "click" reaction on alkyne-terminated coumarin monolayers. The resulting alkyne-beta-cyclodextrin surface can be functionalized through supramolecular microcontact printing on cyclodextrin host patterns and by reactive microcontact printing-induced click chemistry on the alkyne-terminated patterns. The orthogonal covalent and supramolecular "host-guest" functionalization of the surface, and its specificity as well as selectivity, is demonstrated by sequential and one-step printing procedures.
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Affiliation(s)
- Arántzazu González-Campo
- Laboratory of Supramolecular Chemistry and Technology, Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Scaramuzzo FA, González-Campo A, Wu CC, Velders AH, Subramaniam V, Doddi G, Mencarelli P, Barteri M, Jonkheijm P, Huskens J. Pyrylium monolayers as amino-reactive platform. Chem Commun (Camb) 2010; 46:4193-5. [PMID: 20458426 DOI: 10.1039/c002203a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [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
A new monolayer platform based on pyrylium has been developed which is reactive towards amine-terminated (bio)molecules. Upon reaction, a switch in fluorescence properties of the monolayer signifies successful immobilization of these molecules.
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Affiliation(s)
- Francesca A Scaramuzzo
- Molecular Nanofabrication Group, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
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González-Campo A, Orchard KL, Sato N, Shaffer MSP, Williams CK. One-pot, in situ synthesis of ZnO-carbon nanotube–epoxy resin hybrid nanocomposites. Chem Commun (Camb) 2009:4034-6. [DOI: 10.1039/b905353k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [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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González-Campo A, Juárez-Pérez EJ, Viñas C, Boury B, Sillanpää R, Kivekäs R, Núñez R. Carboranyl Substituted Siloxanes and Octasilsesquioxanes: Synthesis, Characterization, and Reactivity. Macromolecules 2008. [DOI: 10.1021/ma801483c] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arántzazu González-Campo
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
| | - Emilio José Juárez-Pérez
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
| | - Clara Viñas
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
| | - Bruno Boury
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
| | - Reijo Sillanpää
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
| | - Raikko Kivekäs
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
| | - Rosario Núñez
- Department of Chemistry, Institut de Ciència de Materials de Barcelona (CSIC), Campus de la U.A.B, 08193 Bellaterra, Spain, Institut Charles Gerhardt Montpellier - UMR 5253 - CNRS-UM2-ENSCM-UM1, CMOS - Place E. Bataillon, 34095 Montpellier, France, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, University of Helsinki, Post Office Box 55, FIN-00014, Finland
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Juárez-Pérez E, Viñas C, González-Campo A, Teixidor F, Sillanpää R, Kivekäs R, Núñez R. Controlled Direct Synthesis of C-Mono- and C-Disubstituted Derivatives of [3,3′-Co(1,2-C2B9H11)2]− with Organosilane Groups: Theoretical Calculations Compared with Experimental Results. Chemistry 2008; 14:4924-38. [DOI: 10.1002/chem.200702013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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González-Campo A, Viñas C, Teixidor F, Núñez R, Sillanpää R, Kivekäs R. Modular Construction of Neutral and Anionic Carboranyl-Containing Carbosilane-Based Dendrimers. Macromolecules 2007. [DOI: 10.1021/ma070907i] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arántzazu González-Campo
- Institut de Ciència de Materials, CSIC, Campus U.A.B., 08193 Bellaterra, Spain, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, P.O. Box 55, University of Helsinki, FIN-00014, Finland
| | - Clara Viñas
- Institut de Ciència de Materials, CSIC, Campus U.A.B., 08193 Bellaterra, Spain, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, P.O. Box 55, University of Helsinki, FIN-00014, Finland
| | - Francesc Teixidor
- Institut de Ciència de Materials, CSIC, Campus U.A.B., 08193 Bellaterra, Spain, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, P.O. Box 55, University of Helsinki, FIN-00014, Finland
| | - Rosario Núñez
- Institut de Ciència de Materials, CSIC, Campus U.A.B., 08193 Bellaterra, Spain, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, P.O. Box 55, University of Helsinki, FIN-00014, Finland
| | - Reijo Sillanpää
- Institut de Ciència de Materials, CSIC, Campus U.A.B., 08193 Bellaterra, Spain, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, P.O. Box 55, University of Helsinki, FIN-00014, Finland
| | - Raikko Kivekäs
- Institut de Ciència de Materials, CSIC, Campus U.A.B., 08193 Bellaterra, Spain, Department of Chemistry, University of Jyväskylä, FIN-40351, Jyväskylä, Finland, and Department of Chemistry, P.O. Box 55, University of Helsinki, FIN-00014, Finland
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González-Campo A, Núñez R, Viñas C, Boury B. Synthetic approaches to the preparation of hybrid network materials incorporating carborane clusters. NEW J CHEM 2006. [DOI: 10.1039/b516705c] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [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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Núñez R, González-Campo A, Viñas C, Teixidor F, Sillanpää R, Kivekäs R. Boron-Functionalized Carbosilanes: Insertion of Carborane Clusters into Peripheral Silicon Atoms of Carbosilane Compounds. Organometallics 2005. [DOI: 10.1021/om050651+] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [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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