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Liu M, He Y, Shan C, Wojtas L, Ghiviriga I, Fathalla O, Yan Y, Li X, Shi X. Anion mediated, tunable isoguanosine self-assemblies: decoding the conformation influence and solvent effects. Chem Sci 2021; 12:7569-7574. [PMID: 34163848 PMCID: PMC8171338 DOI: 10.1039/d1sc00988e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/12/2021] [Indexed: 12/18/2022] Open
Abstract
Systematic investigations were performed with various substituted groups at C8 purine and ribose. A series of isoG analogs, C8-phenyl substituted isoG were synthesized and applied for Cs+ coordination. The structural proximity between purine and ribose limited pentaplex formation for C8-phenyl substituted isoG derivatives. Based on this observation, deoxy isoG derivative with modification on ribose (tert-butyldimethylsilyl ether) was applied to assemble with the Cs+ cation. Critical solvent (CDCl3 and CD3CN) and anion (BPh4 -, BARF-, and PF6 -) effects were revealed, leading to the controllable formation of various stable isoG pentaplexes, including singly charged decamer, doubly charged decamer, and 15-mer, etc. Finally, the X-ray crystal structure of [isoG20Cs3]3+(BARF-)3 was successfully obtained, which is the first example of multiple-layer deoxy isoG binding with the Cs+ cation, providing solid evidence of this new isoG ionophore beyond two-layer sandwich self-assembly.
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Affiliation(s)
- Mengjia Liu
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
| | - Ying He
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
| | - Chuan Shan
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
| | - Ion Ghiviriga
- Department of Chemistry, University of Florida 125 Buckman Drive Gainesville Florida 32611 USA
| | - Omar Fathalla
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
| | - Yu Yan
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
- College of Chemistry and Environmental Engineering, Shenzhen University Shenzhen 518055 People's Republic of China
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue Tampa Florida 33620 USA
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He Y, Zhang Y, Wojtas L, Akhmedov NG, Pan Q, Guo H, Shi X. Reversed Cation Selectivity of G 8 -Octamer and G 16 -Hexadecamer towards Monovalent and Divalent Cations. Chem Asian J 2020; 15:1030-1034. [PMID: 32017419 PMCID: PMC7138703 DOI: 10.1002/asia.202000016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/27/2020] [Indexed: 01/31/2023]
Abstract
A reverse-binding-selectivity between monovalent and divalent cations was observed for two different self-assembly G16 -hexadecamer and G8 -octamer systems. The dissociation constant between G4 -quadruplex and monomer was calculated via VT-1 H NMR experiments. Quantitative energy profiles revealed entropy as the key factor for the weaker binding toward Ba2+ compared with K+ in the G8 -octamer system despite stronger ion-dipole interactions. This study is the first direct comparison of the G4 -quartet binding affinity between mono and divalent cations and will benefit future applications of G-quadruplex-related research. Further competition experiments between the G8 -octamer and 18-crown-6 with K+ demonstrated the potential of this G8 system as a new potassium receptor.
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Affiliation(s)
- Ying He
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida, 33620, United States
| | - Yanbin Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida, 33620, United States
| | - Novruz G Akhmedov
- Department of Chemistry, West Virginia University, Morgantown, WV, 26505, United States
| | - Qinhe Pan
- Key Laboratory of Advanced Materials of Tropical Island Resources, Hainan University, Haikou, 570228, P. R. China
| | - Hao Guo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida, 33620, United States
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Fang Q, Chen B, Lin Y, Guan Y. Aromatic and hydrophobic surfaces of wood-derived biochar enhance perchlorate adsorption via hydrogen bonding to oxygen-containing organic groups. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 48:279-88. [PMID: 24289306 DOI: 10.1021/es403711y] [Citation(s) in RCA: 183] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The pH-dependent adsorption of perchlorate (ClO4(-)) by wood-derived biochars produced at 200-700 °C (referred as FB200-FB700) was investigated to probe the anion retention mechanisms of biochars and to identify the interactions of water and biochar. ClO4(-) adsorption was controlled by the surface polarities and structural compositions of the organic components of biochars, rather than their inorganic mineral components. FB500-FB700 biochars with low polarity and high aromaticity displayed a superior ClO4(-) adsorption capacity, but which was affected by solution pH. Besides electrostatic interaction, hydrogen bonding to oxygen-containing groups on biochars was proposed the dominant force for perchlorate adsorption, which led to the maximum adsorption occurring near pHIEP, where surface charge equals zero. The dissociation of these surface oxygen-containing groups was monitored by zeta potential curves, which indicated that the H-bonds donors on biochar surface for ClO4(-) binding were changed from -COOH (ClO4(-)···HOOC-) and -OH (ClO4(-)···HO-) to -OH alone with an increase in pH. The H-bond force was strengthened by the condensed aromatic surfaces, since high temperature biochars provided a hydrophobic microenvironment to accommodate weakly hydrated perchlorate and facilitated the H-bonds for ClO4(-) binding to functional groups by the large π subunit of their aromatic substrate. Lastly, the batch and column tests of ClO4(-) adsorption showed that biochars like FB700 are effective adsorbents for anion pollutant removal via H-bonding interaction.
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Affiliation(s)
- Qile Fang
- Department of Environmental Science, Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University , Hangzhou, Zhejiang 310058, China
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Xu J, Wu G, Wang Z, Zhang X. Growth mechanisms of 2D organic assemblies generated from dialkylated melaminium derivatives: the length difference of the two alkyl chains that matters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10959-10963. [PMID: 23909576 DOI: 10.1021/la402622j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This research is aimed to understand the growth mechanisms for self-assembly of dialkylated melamine derivatives. The dialkylated melamine derivatives with different alkyl chains (Mela-m-n) are able to self-assemble with hydrochloric acid in dichloromethane to form 2D organic assemblies, exhibiting similar lamellar structures as Mela-n·HCl with identical alkyl chains. The most interesting finding is that the growth mechanism of Mela-n·HCl with identical alkyl chains is revealed to be layer growth, while Mela-m-n·HCl with asymmetric alkyl chains adopts a spiral growth mechanism. The asymmetric alkyl chains in Mela-m-n may lead to the formation of dislocation, which is responsible for the spiral growth mechanism.
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Affiliation(s)
- Jun Xu
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing100084, PR China
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Li L, Wu R, Guang S, Su X, Xu H. The investigation of the hydrogen bond saturation effect during the dipole–dipole induced azobenzene supramolecular self-assembly. Phys Chem Chem Phys 2013; 15:20753-63. [DOI: 10.1039/c3cp52864b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Yu B, Jiang X, Yin J. Multiresponsive Square Hybrid Nanosheets of POSS-Ended Hyperbranched Poly(ether amine) (hPEA). Macromolecules 2012. [DOI: 10.1021/ma301371h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Bing Yu
- School of Chemistry & Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Xuesong Jiang
- School of Chemistry & Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Jie Yin
- School of Chemistry & Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
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Das RN, Kumar YP, Pagoti S, Patil AJ, Dash J. Diffusion and birefringence of bioactive dyes in a supramolecular guanosine hydrogel. Chemistry 2012; 18:6008-14. [PMID: 22461410 DOI: 10.1002/chem.201103814] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Indexed: 11/10/2022]
Abstract
Transparent self-standing supramolecular hydrogels were readily prepared by the potassium-ion-mediated self-organization of guanosine and 8-bromoguanosine whilst the individual components precipitated within a few hours. VT-NMR spectroscopy showed that bromoguanosine was a superior gelator compared to guanosine. XRD analysis showed that gel formation was caused by stacked G-quartets. AFM analysis revealed dendritic architectures of the nanofibers in the two-component hydrogel network. DSC profiles showed that the hybrid hydrogels underwent sol-gel transition at lower temperature than the pure guanosine and bromoguanosine hydrogels. Interestingly, bioactive dyes, such as rose bengal, rhodamine-6-G, and fluorescein, could be diffused and released in a controlled manner. UV/Vis absorption and fluorescence spectroscopy and CLSM were used to investigate the diffusion behavior of dyes in the hydrogel network. These dyes exhibited strong birefringence in the gel network (0.07-0.1) as a result of the anisotropic organization.
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Affiliation(s)
- Rabindra Nath Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur Campus, Mohanpur 7412 52, Nadia, West Bengal, India
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Wu G, Zhu J. NMR studies of alkali metal ions in organic and biological solids. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2012; 61:1-70. [PMID: 22340207 DOI: 10.1016/j.pnmrs.2011.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2010] [Accepted: 05/31/2011] [Indexed: 05/31/2023]
Affiliation(s)
- Gang Wu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada.
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Xu J, Wu G, Wang Z, Zhang X. Generation of 2D organic microsheets from protonated melamine derivatives: suppression of the self assembly of a particular dimension by introduction of alkyl chains. Chem Sci 2012. [DOI: 10.1039/c2sc20871g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Webber AL, Masiero S, Pieraccini S, Burley JC, Tatton AS, Iuga D, Pham TN, Spada GP, Brown SP. Identifying guanosine self assembly at natural isotopic abundance by high-resolution 1H and 13C solid-state NMR spectroscopy. J Am Chem Soc 2011; 133:19777-95. [PMID: 22034827 DOI: 10.1021/ja206516u] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By means of the (1)H chemical shifts and the proton-proton proximities as identified in (1)H double-quantum (DQ) combined rotation and multiple-pulse spectroscopy (CRAMPS) solid-state NMR correlation spectra, ribbon-like and quartet-like self-assembly can be identified for guanosine derivatives without isotopic labeling for which it was not possible to obtain single crystals suitable for diffraction. Specifically, characteristic spectral fingerprints are observed for dG(C10)(2) and dG(C3)(2) derivatives, for which quartet-like and ribbon-like self-assembly has been unambiguously identified by (15)N refocused INADEQUATE spectra in a previous study of (15)N-labeled derivatives (Pham, T. N.; et al. J. Am. Chem. Soc.2005, 127, 16018). The NH (1)H chemical shift is observed to be higher (13-15 ppm) for ribbon-like self-assembly as compared to 10-11 ppm for a quartet-like arrangement, corresponding to a change from NH···N to NH···O intermolecular hydrogen bonding. The order of the two NH(2)(1)H chemical shifts is also inverted, with the NH(2) proton closest in space to the NH proton having a higher or lower (1)H chemical shift than that of the other NH(2) proton for ribbon-like as opposed to quartet-like self-assembly. For the dG(C3)(2) derivative for which a single-crystal diffraction structure is available, the distinct resonances and DQ peaks are assigned by means of gauge-including projector-augmented wave (GIPAW) chemical shift calculations. In addition, (14)N-(1)H correlation spectra obtained at 850 MHz under fast (60 kHz) magic-angle spinning (MAS) confirm the assignment of the NH and NH(2) chemical shifts for the dG(C3)(2) derivative and allow longer range through-space N···H proximities to be identified, notably to the N7 nitrogens on the opposite hydrogen-bonding face.
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Affiliation(s)
- Amy L Webber
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
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Martic S, Wu G, Wang S. Interactions of cytidine with N 2-functionalized guanosines and cytidine – cytidine exchange involving a GC pair — NMR and fluorescence spectroscopic study. CAN J CHEM 2010. [DOI: 10.1139/v10-040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two N2-functionalized guanosines by diphenylaminobiphenyl and di(2-pyridyl)aminobiphenyl have been found to act as the effective probes for G–C interactions in organic media. Because of the highly emissive nature of the N2-functionalized guanosines in the visible region, the GC base pair formation event accompanied by distinct fluorescence quenching can be readily monitored by fluorescence spectroscopy. NMR and fluorescence results confirm that the N2-arylguanosines form H-bonded pairs with cytidine, selectively. An unusual exchange pathway between non-bound cytidine and bound cytidine, in the GC pair, has been identified and extensively studied by NMR methods.
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Affiliation(s)
- Sanela Martic
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Gang Wu
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Suning Wang
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
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Pieraccini S, Bonacchi S, Lena S, Masiero S, Montalti M, Zaccheroni N, Spada GP. Solvent-induced switching between two supramolecular assemblies of a guanosine–terthiophene conjugate. Org Biomol Chem 2010; 8:774-81. [DOI: 10.1039/b920220j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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An Q, Chen Q, Zhu W, Li Y, Tao CA, Yang H, Li Z, Wan L, Tian H, Li G. A facile method for preparing one-molecule-thick free-standing organic nanosheets with a regular square shape. Chem Commun (Camb) 2010; 46:725-7. [DOI: 10.1039/b920623j] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lena S, Masiero S, Pieraccini S, Spada GP. Guanosine hydrogen-bonded scaffolds: a new way to control the bottom-up realisation of well-defined nanoarchitectures. Chemistry 2009; 15:7792-7806. [PMID: 19421976 DOI: 10.1002/chem.200802506] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Over the last two decades, guanosine-related molecules have been of interest in different areas, ranging from structural biology to medicinal chemistry, supramolecular chemistry and nanotechnology. The guanine base is a multiple hydrogen-bonding unit, capable also of binding to cations, and fits very well with contemporary studies in supramolecular chemistry, self-assembly and non-covalent synthesis. This Concepts article, after reviewing on the diversification of self-organised assemblies from guanosine-based low-molecular-weight molecules, will mainly focus on the use of guanine moiety as a potential scaffold for designing functional materials of tailored physical properties.
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Affiliation(s)
- Stefano Lena
- Dipartimento di Chimica Organica A. Mangini, Alma Mater Studiorum-Università di Bologna, Via San Giacomo 11, 40126 Bologna, Italy
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Neviani P, Mileo E, Masiero S, Pieraccini S, Lucarini M, Spada GP. Self-Assembled Hexadecanitroxide. Org Lett 2009; 11:3004-7. [DOI: 10.1021/ol901028h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paolo Neviani
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, 40126 Bologna, Italy
| | - Elisabetta Mileo
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, 40126 Bologna, Italy
| | - Stefano Masiero
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, 40126 Bologna, Italy
| | - Silvia Pieraccini
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, 40126 Bologna, Italy
| | - Marco Lucarini
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, 40126 Bologna, Italy
| | - Gian Piero Spada
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, 40126 Bologna, Italy
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Graziano C, Masiero S, Pieraccini S, Lucarini M, Spada GP. A Cation-Directed Switch of Intermolecular Spin−Spin Interaction of Guanosine Derivatives Functionalized with Open-Shell Units. Org Lett 2008; 10:1739-42. [DOI: 10.1021/ol8003832] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carla Graziano
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, I-40126 Bologna, Italy
| | - Stefano Masiero
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, I-40126 Bologna, Italy
| | - Silvia Pieraccini
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, I-40126 Bologna, Italy
| | - Marco Lucarini
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, I-40126 Bologna, Italy
| | - Gian Piero Spada
- Alma Mater Studiorum - Università di Bologna, Dipartimento di Chimica Organica “A. Mangini”, Via San Giacomo 11, I-40126 Bologna, Italy
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Arnal-Hérault C, Pasc A, Michau M, Cot D, Petit E, Barboiu M. Functional G-quartet macroscopic membrane films. Angew Chem Int Ed Engl 2008; 46:8409-13. [PMID: 17912736 DOI: 10.1002/anie.200702605] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Carole Arnal-Hérault
- Adaptative Supramolecular Nanosystems, Institut Européen des Membranes, ENSCM/UM2/CNRS 5635, IEM/UM2, Place Eugène Bataillon, CC 047, 34095 Montpellier, France
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Arnal-Hérault C, Pasc A, Michau M, Cot D, Petit E, Barboiu M. Functional G-Quartet Macroscopic Membrane Films. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200702605] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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