51
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Romeo A, Castriciano MA, Zagami R, Pollicino G, Monsù Scolaro L, Pasternack RF. Effect of zinc cations on the kinetics of supramolecular assembly and the chirality of porphyrin J-aggregates. Chem Sci 2017; 8:961-967. [PMID: 28451233 PMCID: PMC5354048 DOI: 10.1039/c6sc02686a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 09/28/2016] [Indexed: 12/19/2022] Open
Abstract
Dilute aqueous solutions of anionic meso-4-sulfonatophenyl-porphyrin (TPPS) extract zinc(ii) ions from glass or quartz surfaces at room temperature and efficiently form the corresponding metal complex (ZnTPPS). The partial or complete formation of ZnTPPS has been probed by UV/Vis spectroscopy and both static and time-resolved fluorescence. The source of zinc(ii) ions has been clearly identified through inductively coupled plasma optical emission spectrometry. The presence of increasing amounts of ZnTPPS slows down the rate of TPPS J-aggregate formation in acid solution. This influences the nucleation step and has a profound impact on the onset of chirality in these species. This evidence indicates the important role of this adventitious metal ion in the interpretation of various spectroscopic and kinetic data for the self-assembly of the TPPS porphyrin and provides some insights into controversial findings on their chirality. The use of this metal derivative as the starting compound for in situ formation of monomeric TPPS is suggested.
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Affiliation(s)
- A Romeo
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy .
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , C.I.R.C.M.S.B , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy
| | - M A Castriciano
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy .
| | - R Zagami
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , C.I.R.C.M.S.B , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy
| | - G Pollicino
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali , Sezione SASTAS , University of Messina , Messina , Italy
| | - L Monsù Scolaro
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy .
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , C.I.R.C.M.S.B , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy
| | - R F Pasternack
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania PA 19081 , USA
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52
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Ribo JM, El-Hachemi Z, Arteaga O, Canillas A, Crusats J. Hydrodynamic Effects in Soft-matter Self-assembly: The Case of J-Aggregates of Amphiphilic Porphyrins. CHEM REC 2017; 17:713-724. [DOI: 10.1002/tcr.201600133] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Josep M. Ribo
- Department of Inorganic and Organic Chemistry; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- Institute of Cosmos Sciences; IEEC-UB; c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Zoubir El-Hachemi
- Department of Inorganic and Organic Chemistry; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- Institute of Cosmos Sciences; IEEC-UB; c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Oriol Arteaga
- Department of Applied Physics; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- FEMAN Group; Institute of Nanoscience and Nanotechnology (IN2UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Adolf Canillas
- Department of Applied Physics; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- FEMAN Group; Institute of Nanoscience and Nanotechnology (IN2UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Joaquim Crusats
- Department of Inorganic and Organic Chemistry; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- Institute of Cosmos Sciences; IEEC-UB; c. Martí I Franques 1 08- Barcelona Catalonia Spain
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53
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Zagami R, Romeo A, Castriciano MA, Monsù Scolaro L. Inverse Kinetic and Equilibrium Isotope Effects on Self-Assembly and Supramolecular Chirality of Porphyrin J-Aggregates. Chemistry 2016; 23:70-74. [DOI: 10.1002/chem.201604675] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Roberto Zagami
- CNR-ISMN; Istituto per lo Studio dei Materiali Nanostrutturati; c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali; University of Messina; V.le F. Stagno D'Alcontres 31 98166 Messina Italy), Fax
| | - Andrea Romeo
- CNR-ISMN; Istituto per lo Studio dei Materiali Nanostrutturati; c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali; University of Messina; V.le F. Stagno D'Alcontres 31 98166 Messina Italy), Fax
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali; University of Messina, and C.I.R.C.M.S.B.; V.le F. Stagno D'Alcontres 31 98166 Messina Italy
| | - Maria A. Castriciano
- CNR-ISMN; Istituto per lo Studio dei Materiali Nanostrutturati; c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali; University of Messina; V.le F. Stagno D'Alcontres 31 98166 Messina Italy), Fax
| | - Luigi Monsù Scolaro
- CNR-ISMN; Istituto per lo Studio dei Materiali Nanostrutturati; c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali; University of Messina; V.le F. Stagno D'Alcontres 31 98166 Messina Italy), Fax
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali; University of Messina, and C.I.R.C.M.S.B.; V.le F. Stagno D'Alcontres 31 98166 Messina Italy
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54
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El-Hachemi Z, Balaban TS, Campos JL, Cespedes S, Crusats J, Escudero C, Kamma-Lorger CS, Llorens J, Malfois M, Mitchell GR, Tojeira AP, Ribó JM. Effect of Hydrodynamic Forces on meso-(4-Sulfonatophenyl)-Substituted Porphyrin J-Aggregate Nanoparticles: Elasticity, Plasticity and Breaking. Chemistry 2016; 22:9740-9. [PMID: 27238461 DOI: 10.1002/chem.201600874] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 11/10/2022]
Abstract
The J aggregates of 4-sulfonatophenyl meso-substituted porphyrins are non-covalent polymers obtained by self-assembly that form nanoparticles of different morphologies. In the case of high aspect-ratio nanoparticles (bilayered ribbons and monolayered nanotubes), shear hydrodynamic forces may modify their shape and size, as observed by peak force microscopy, transmission electron microscopy of frozen solutions, small-angle X-ray scattering measurements in a disk-plate rotational cell, and cone-plate rotational viscometry. These nanoparticles either show elastic or plastic behaviour: there is plasticity in the ribbons obtained upon nanotube collapse on solid/air interfaces and in viscous concentrated nanotube solutions, whereas elasticity occurs in the case of dilute nanotube solutions. Sonication and strong shear hydrodynamic forces lead to the breaking of the monolayered nanotubes into small particles, which then associate into large colloidal particles.
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Affiliation(s)
- Zoubir El-Hachemi
- Department of Organic Chemistry, Institute of Cosmos Science (IEEC-UB), University of Barcelona (UB), c. Martí I Franquès 1, 08028, Barcelona, Catalonia, Spain.
| | | | - J Lourdes Campos
- Department of Chemical Engineering, Polytechnic University of Catalonia (UPC), Av. Diagonal 647, Barcelona, Catalonia, 08028, Spain
| | - Sergio Cespedes
- Department of Organic Chemistry, Institute of Cosmos Science (IEEC-UB), University of Barcelona (UB), c. Martí I Franquès 1, 08028, Barcelona, Catalonia, Spain
| | - Joaquim Crusats
- Department of Organic Chemistry, Institute of Cosmos Science (IEEC-UB), University of Barcelona (UB), c. Martí I Franquès 1, 08028, Barcelona, Catalonia, Spain
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Catalonia, Spain
| | - Christina S Kamma-Lorger
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Catalonia, Spain
| | - Joan Llorens
- Department of Chemical Engineering, University of Barcelona, c. Martí I Franquès 1, 08028, Barcelona, Catalonia, Spain
| | - Marc Malfois
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Catalonia, Spain
| | - Geoffrey R Mitchell
- Center for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, Portugal
| | - Ana P Tojeira
- Center for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, Portugal
| | - Josep M Ribó
- Department of Organic Chemistry, Institute of Cosmos Science (IEEC-UB), University of Barcelona (UB), c. Martí I Franquès 1, 08028, Barcelona, Catalonia, Spain.
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55
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Gaeta M, Oliveri IP, Fragalà ME, Failla S, D'Urso A, Di Bella S, Purrello R. Chirality of self-assembled achiral porphyrins induced by chiral Zn(ii) Schiff-base complexes and maintained after spontaneous dissociation of the templates: a new case of chiral memory. Chem Commun (Camb) 2016; 52:8518-21. [DOI: 10.1039/c6cc04018g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report a case of chiral memory in porphyrin aggregates templated by chiral Zn(ii) Schiff-base complexes which readily dissociate in aqueous solution.
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Affiliation(s)
- Massimiliano Gaeta
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
| | - Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
| | - Maria Elena Fragalà
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
| | - Alessandro D'Urso
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
| | - Roberto Purrello
- Dipartimento di Scienze Chimiche
- Università degli Studi di Catania
- I-95125 Catania
- Italy
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56
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Arteaga O, El-Hachemi Z, Canillas A, Crusats J, Rovira M, Ribó JM. Reversible and irreversible emergence of chiroptical signals in J-aggregates of achiral 4-sulfonatophenyl substituted porphyrins: intrinsic chirality vs. chiral ordering in the solution. Chem Commun (Camb) 2016; 52:10874-7. [DOI: 10.1039/c6cc05709h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Different origins of the reversible and irreversible emergence of chiroptical signals in the title J-aggregates.
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Affiliation(s)
- Oriol Arteaga
- Department of Applied Physics
- University of Barcelona
- E-08028 Barcelona
- Spain
- FEMAN Group
| | - Zoubir El-Hachemi
- Departament de Quimica Inorgànica I Orgànica
- Seccció d’Orgànica
- Universitat de Barcelona
- E-08028 Barcelona
- Spain
| | - Adolf Canillas
- Department of Applied Physics
- University of Barcelona
- E-08028 Barcelona
- Spain
- FEMAN Group
| | - Joaquim Crusats
- Departament de Quimica Inorgànica I Orgànica
- Seccció d’Orgànica
- Universitat de Barcelona
- E-08028 Barcelona
- Spain
| | - Meritxell Rovira
- Departament de Quimica Inorgànica I Orgànica
- Seccció d’Orgànica
- Universitat de Barcelona
- E-08028 Barcelona
- Spain
| | - Josep M. Ribó
- Departament de Quimica Inorgànica I Orgànica
- Seccció d’Orgànica
- Universitat de Barcelona
- E-08028 Barcelona
- Spain
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57
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Shen Z, Jiang Y, Wang T, Liu M. Symmetry Breaking in the Supramolecular Gels of an Achiral Gelator Exclusively Driven by π-π Stacking. J Am Chem Soc 2015; 137:16109-15. [PMID: 26647220 DOI: 10.1021/jacs.5b10496] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Supramolecular symmetry breaking, in which chiral assemblies with imbalanced right- and left-handedness emerge from achiral molecular building blocks, has been achieved in the organogels of a C3-symmetric molecule only via π-π stacking. Specifically, an achiral C3-symmetric benzene-1,3,5-tricarboxylate substituted with methyl cinnamate through ester bond was found to form organogels in various organic solvents. More interestingly, when gels formed in cyclohexane, symmetry breaking occurred; i.e., optically active organogels together with the helical nanofibers with predominant handedness were obtained. Furthermore, the stochastically appeared imbalanced helicity could be driven to desired handedness by utilizing slight chiral solvents such as (R)- or (S)-terpinen-4-ol. Remarkably, the handedness of supramolecular assemblies thus formed could be kept even when the chiral solvents were removed. For the first time, we show that symmetry breaking can occur in supramolecular gel system driven exclusively through π-π stacking.
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Affiliation(s)
- Zhaocun Shen
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Yuqian Jiang
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China
| | - Tianyu Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.,National Center for Nanoscience and Technology, Beijing 100190, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P. R. China
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58
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Occhiuto IG, Samperi M, Trapani M, De Luca G, Romeo A, Pasternack RF, Scolaro LM. Aggregates of a cationic porphyrin as supramolecular probes for biopolymers. J Inorg Biochem 2015; 153:361-366. [PMID: 26490712 DOI: 10.1016/j.jinorgbio.2015.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/11/2015] [Accepted: 09/30/2015] [Indexed: 11/26/2022]
Abstract
The copper(II) derivative of the dicationic trans-bis(N-methylpyridinium-4-yl)diphenylporphyrin (t-CuPagg) forms large fractal aggregates in aqueous solution under moderate ionic strength conditions. A kinetic investigation of the aggregation process allows for a choice of experimental conditions to quickly obtain stable assemblies in solution. These positively charged aggregates are able to interact efficiently with negatively charged chiral species, (including bacterial spores) leading to induced circular dichroism signals in the Soret region of the porphyrin, now acting as a sensitive chiroptical probe.
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Affiliation(s)
| | - Mario Samperi
- Dipartimento di Scienze Chimiche and C.I.R.C.M.S.B., V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Mariachiara Trapani
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, University of Messina, V.le F. Stagno D'Alcontres, 31-98166 Messina, Italy
| | - Giovanna De Luca
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, V.le Annunziata, 98168 Messina, Italy
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche and C.I.R.C.M.S.B., V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Robert F Pasternack
- Department of Chemistry & Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, PA 19081, USA
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche and C.I.R.C.M.S.B., V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy; Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, University of Messina, V.le F. Stagno D'Alcontres, 31-98166 Messina, Italy.
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59
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Castriciano MA, Zagami R, Trapani M, Romeo A, Patanè S, Monsù Scolaro L. Investigation of the Aggregation Properties of a Chiral Porphyrin Bearing Citronellal Meso Substituent Groups. Chirality 2015; 27:900-6. [PMID: 26447722 DOI: 10.1002/chir.22528] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/11/2015] [Accepted: 08/11/2015] [Indexed: 11/07/2022]
Abstract
A new porphyrin bearing four R or S hydrogenated citronellal units directly bound to the meso positions of the porphyrin ring was synthesized and fully characterized through MALDI-TOF, NMR, UV/Vis absorption, and fluorescence emission spectroscopies. Both enantiomers exhibit a monomeric nature in a series of organic solvents. Acting on the polarity of the solvent, i.e., increasing the amount of water in mixture with acetone, aggregation occurs, as revealed by UV/Vis absorption, fluorescence emission, and resonance light scattering. The occurrence of both H- and J-type aggregates was suggested by fluorescence lifetime measurements. In contrast to the monomeric species, these aggregates exhibit CD spectra reflecting the chirality of the building blocks. AFM microscopy shows that micrometer ribbon-like structures form by the casting solution of these porphyrins in acetone/water onto a glass surface.
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Affiliation(s)
| | - Roberto Zagami
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Messina, Italy
| | - Mariachiara Trapani
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Messina, Italy
| | - Andrea Romeo
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Messina, Italy.,Dipartimento di Scienze Chimiche and C.I.R.C.M.S.B., Messina, Italy
| | | | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Messina, Italy.,Dipartimento di Scienze Chimiche and C.I.R.C.M.S.B., Messina, Italy
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60
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Affiliation(s)
- Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Tianyu Wang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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61
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Micali N, Vybornyi M, Mineo P, Khorev O, Häner R, Villari V. Hydrodynamic and Thermophoretic Effects on the Supramolecular Chirality of Pyrene-Derived Nanosheets. Chemistry 2015; 21:9505-13. [PMID: 26012534 DOI: 10.1002/chem.201500932] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Indexed: 01/13/2023]
Abstract
Chiroptical properties of two-dimensional (2D) supramolecular assemblies (nanosheets) of achiral, charged pyrene trimers (Py3 ) are rendered chiral by asymmetric physical perturbations. Chiral stimuli in a cuvette can originate either from controlled temperature gradients or by very gentle stirring. The chiroptical activity strongly depends on the degree of supramolecular order of the nanosheets, which is easily controlled by the method of preparation. The high degree of structural order ensures strong cooperative effects within the aggregates, rendering them more susceptible to external stimuli. The samples prepared by using slow thermal annealing protocols are both CD and LD active (in stagnant and stirred solutions), whereas for isothermally aged samples chiroptical activity was in all cases undetectable. In the case of temperature gradients, the optical activity of 2D assemblies could be recorded for a stagnant solution due to migration of the aggregates from the hottest to the coldest regions of the system. However, a considerably stronger exciton coupling, coinciding with the J-band of the interacting pyrenes, is developed upon subtle vortexing (0.5 Hz, 30 rpm) of the aqueous solution of the nanosheets. The sign of the exciton coupling is inverted upon switching between clockwise and counter-clockwise rotation. The supramolecular chirality is evidenced by the appearance of CD activity. To exclude artefacts from proper CD spectra, the contribution from LD to the observed CD was determined. The data suggest that the aggregates experience asymmetrical deformation and alignment effects because of the presence of chiral flows.
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Affiliation(s)
- Norberto Micali
- CNR-IPCF Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, Messina (Italy)
| | - Mykhailo Vybornyi
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern (Switzerland)
| | - Placido Mineo
- CNR-IPCF Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, Messina (Italy).,Dipartimento di Scienze Chimiche and I.N.S.T.M. UdR of Catania, University of Catania, Viale Andrea Doria 6, 95125 Catania (Italy)
| | - Oleg Khorev
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern (Switzerland)
| | - Robert Häner
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern (Switzerland).
| | - Valentina Villari
- CNR-IPCF Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, Messina (Italy).
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62
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Chiral tetrakis(4-carboxyphenyl)porphyrin aggregates induced by enantiomeric dibenzoyl tartaric acids at the air–water interface. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.11.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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63
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Yang L, Jiang L, Yao W, Liu J, Han J. Real-time analysis of porphyrin J-aggregation on a plant-esterase-functionalized surface using quartz crystal microbalance with dissipation monitoring. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9962-9971. [PMID: 25062327 DOI: 10.1021/la501986e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The J-aggregation of meso-tetra (4-sulfonatophenyl) porphine (TPPS4) on a plant-esterase-functionalized surface in a 1:1 v/v mixture of 0.05 M HCl/ethanol (pH ∼1.38) was analyzed in real time using a quartz crystal microbalance with dissipation monitoring (QCM-D). Simultaneous changes in frequency (Δf) and energy dissipation (ΔD) correlated well with mass and structural changes during the sequential phases of slow nucleation, rapid aggregation, and equilibration in J-aggregation. The time-dependent mass adsorption could be quantitatively analyzed with a model, which integrated two simple equations obtained when the surface concentration of TPPS4 (Γ(TPPS4)) was below and above the critical aggregation surface concentration (CASC). This study provides a new view for the protein-induced J-aggregation process, which may be helpful for understanding the interactions of self-assembled nanostructures with biomolecules.
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Affiliation(s)
- Limin Yang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China) , Qingdao, Shandong 266555, P. R. China
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64
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Harada T, Kajiyama N, Ishizaka K, Toyofuku R, Izumi K, Umemura K, Imai Y, Taniguchi N, Mishima K. Plasmon resonance-enhanced circularly polarized luminescence of self-assembled meso-tetrakis(4-sulfonatophenyl)porphyrin–surfactant complexes in interaction with Ag nanoparticles. Chem Commun (Camb) 2014; 50:11169-72. [DOI: 10.1039/c4cc04477k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The phenomenon can be explained by the plasmon-induced resonant chiral-field enhancement arising from the coupling of optical molecular dipoles with AgNPs.
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Affiliation(s)
- Takunori Harada
- Department of Chemical Engineering
- Fukuoka University
- Fukuoka 814-0180, Japan
| | - Naoki Kajiyama
- Department of Chemical Engineering
- Fukuoka University
- Fukuoka 814-0180, Japan
| | | | | | | | | | - Yoshitane Imai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kinki University
- Higashi-Osaka, Japan
| | - Naoya Taniguchi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kinki University
- Higashi-Osaka, Japan
| | - Kenji Mishima
- Department of Chemical Engineering
- Fukuoka University
- Fukuoka 814-0180, Japan
| |
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