251
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Highly selective and sensitive macrocycle-based dinuclear foldamer for fluorometric and colorimetric sensing of citrate in water. Sci Rep 2018; 8:286. [PMID: 29321505 PMCID: PMC5762659 DOI: 10.1038/s41598-017-18322-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 12/08/2017] [Indexed: 11/17/2022] Open
Abstract
The selective detection of citrate anions is essential for various biological functions in living systems. A quantitative assessment of citrate is required for the diagnosis of various diseases in the human body; however, it is extremely challenging to develop efficient fluorescence and color-detecting molecular probes for sensing citrate in water. Herein, we report a macrocycle-based dinuclear foldamer (1) assembled with eosin Y (EY) that has been studied for anion binding by fluorescence and colorimetric techniques in water at neutral pH. Results from the fluorescence titrations reveal that the 1·EY ensemble strongly binds citrate anions, showing remarkable selectivity over a wide range of inorganic and carboxylate anions. The addition of citrate anions to the 1·EY adduct led to a large fluorescence enhancement, displaying a detectable color change under both visible and UV light in water up to 2 μmol. The biocompatibility of 1·EY as an intracellular carrier in a biological system was evaluated on primary human foreskin fibroblast (HF) cells, showing an excellent cell viability. The strong binding properties of the ensemble allow it to be used as a highly sensitive, detective probe for biologically relevant citrate anions in various applications.
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252
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Wagner-Wysiecka E, Łukasik N, Biernat JF, Luboch E. Azo group(s) in selected macrocyclic compounds. J INCL PHENOM MACRO 2018; 90:189-257. [PMID: 29568230 PMCID: PMC5845695 DOI: 10.1007/s10847-017-0779-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/26/2017] [Indexed: 01/15/2023]
Abstract
Azobenzene derivatives due to their photo- and electroactive properties are an important group of compounds finding applications in diverse fields. Due to the possibility of controlling the trans-cis isomerization, azo-bearing structures are ideal building blocks for development of e.g. nanomaterials, smart polymers, molecular containers, photoswitches, and sensors. Important role play also macrocyclic compounds well known for their interesting binding properties. In this article selected macrocyclic compounds bearing azo group(s) are comprehensively described. Here, the relationship between compounds' structure and their properties (as e.g. ability to guest complexation, supramolecular structure formation, switching and motion) is reviewed.
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Affiliation(s)
- Ewa Wagner-Wysiecka
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Natalia Łukasik
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Jan F Biernat
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Elżbieta Luboch
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
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253
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Billing BK, Mayank M, Agnihotri PK, Singh N. Development of pyrene-stacked carbon nanotube-based hybrid: measurement of NO3− ions using fluorescence spectroscopy. Analyst 2018; 143:3343-3352. [DOI: 10.1039/c8an00286j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
CNT@pyrene hybrid for fluorescent recognition of nitrate ions.
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Affiliation(s)
- Beant Kaur Billing
- Department of Mechanical Engineering
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Mayank Mayank
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Prabhat K. Agnihotri
- Department of Mechanical Engineering
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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254
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Zhang Y, Yu SB, Yang B, Wang H, Zhang DW, Li ZT. Ion-pair electrostatic attraction-enhanced donor–acceptor interactions between the prototypic 1,4-dialkoxybenzene-viologen binding mode in water. Org Chem Front 2018. [DOI: 10.1039/c7qo01126a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Intermolecular ion-pair electrostatic attraction was demonstrated to remarkably enhance the donor–acceptor interaction between prototypic 1,4-dialkoxybenzene and viologen in water.
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Affiliation(s)
- Yao Zhang
- Department of Chemistry
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai 200433
| | - Shang-Bo Yu
- Department of Chemistry
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai 200433
| | - Bo Yang
- Department of Chemistry
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai 200433
| | - Hui Wang
- Department of Chemistry
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai 200433
| | - Dan-Wei Zhang
- Department of Chemistry
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai 200433
| | - Zhan-Ting Li
- Department of Chemistry
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai 200433
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255
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Baron M, Dall'Anese A, Tubaro C, Orian L, Di Marco V, Bogialli S, Graiff C, Basato M. A square planar gold(iii) bis-(1,1′-dimethyl-3,3′-methylene-diimidazol-2,2′-diylidene) trication as an efficient and selective receptor towards halogen anions: the cooperative effect of Au⋯X and X⋯HC interactions. Dalton Trans 2018; 47:935-945. [DOI: 10.1039/c7dt03672h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A tetra-NHC gold(iii) complex acts as anion sensor.
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Affiliation(s)
- Marco Baron
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Anna Dall'Anese
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Laura Orian
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Valerio Di Marco
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Sara Bogialli
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche
- della Vita e della Sostenibilità Ambientale
- Università degli Studi di Parma
- 43124 Parma
- Italy
| | - Marino Basato
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
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256
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Ghosh TK, Ghosh P. Balancing the acidity of the pendant urea arm of bis-heteroleptic ruthenium(ii) complex containing pyridyl triazole for improved oxyanion recognition. Dalton Trans 2018; 47:7561-7570. [DOI: 10.1039/c8dt01023d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of the acidity of the pendant urea –NH protons on oxyanion recognition, luminiscence OFF–ON sensing and extraction is demonstrated.
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Affiliation(s)
- Tamal Kanti Ghosh
- Tamal Kanti Ghosh and Pradyut Ghosh
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Pradyut Ghosh
- Tamal Kanti Ghosh and Pradyut Ghosh
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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257
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Wolf FF, Neudörfl JM, Goldfuss B. Hydrogen-bonding cyclodiphosphazanes: superior effects of 3,5-(CF3)2-substitution in anion-recognition and counter-ion catalysis. NEW J CHEM 2018. [DOI: 10.1039/c7nj04660j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Syntheses, X-ray characterization and employment of new cyclodiphosph(v)azane hydrogen-bonding catalysts in experimental and computational anion recognition and the N-acyl-Mannich reaction.
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Affiliation(s)
- Florian F. Wolf
- Institut für Organische Chemie
- Universität zu Köln
- 50939 Köln
- Germany
| | - Jörg-M. Neudörfl
- Institut für Organische Chemie
- Universität zu Köln
- 50939 Köln
- Germany
| | - Bernd Goldfuss
- Institut für Organische Chemie
- Universität zu Köln
- 50939 Köln
- Germany
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258
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Lim JYC, Beer PD. A pyrrole-containing cleft-type halogen bonding receptor for oxoanion recognition and sensing in aqueous solvent media. NEW J CHEM 2018. [DOI: 10.1039/c8nj00420j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A halogen bonding pyrrole-bis(iodotriazolium) motif facilitates rarely observed augmented binding affinities and selective sensing of oxoanions (H2PO4− and SO42−).
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Affiliation(s)
- Jason Y. C. Lim
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Paul D. Beer
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
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259
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Collaborative routes to clarifying the murky waters of aqueous supramolecular chemistry. Nat Chem 2017; 10:8-16. [DOI: 10.1038/nchem.2894] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 10/20/2017] [Indexed: 12/19/2022]
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260
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Beyeh NK, Díez I, Taimoory SM, Meister D, Feig AI, Trant JF, Ras RHA, Rissanen K. High-affinity and selective detection of pyrophosphate in water by a resorcinarene salt receptor. Chem Sci 2017; 9:1358-1367. [PMID: 29675184 PMCID: PMC5887233 DOI: 10.1039/c7sc05167k] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 12/15/2017] [Indexed: 11/21/2022] Open
Abstract
Pyrophosphate (PPi) is a byproduct of DNA and RNA synthesis, and abnormal levels are indicative of disease. We report the high-affinity binding of PPi in water by N-alkyl ammonium resorcinarene chloride receptors. Experimental analysis using 1H and 31P NMR, isothermal titration calorimetry, mass spectrometry, and UV-vis spectroscopy all support exceptional selectivity of these systems for PPi in water. The measured affinity of K1 = 1.60 × 107 M-1 for PPi is three orders of magnitude larger than that observed for binding to another phosphate, ATP. This exceptional anion-binding affinity in water is explored through a detailed density functional theory computational study. These systems provide a promising avenue for the development of future innovative medical diagnostic tools.
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Affiliation(s)
- Ngong Kodiah Beyeh
- Aalto University , School of Science , Department of Applied Physics , Puumiehenkuja 2 , FI-02150 , Espoo , Finland . ; .,University of Windsor , Department of Chemistry and Biochemistry , Windsor , ON N9B 3P4 , Canada .
| | - Isabel Díez
- Aalto University , School of Science , Department of Applied Physics , Puumiehenkuja 2 , FI-02150 , Espoo , Finland . ;
| | - S Maryamdokht Taimoory
- University of Windsor , Department of Chemistry and Biochemistry , Windsor , ON N9B 3P4 , Canada .
| | - Daniel Meister
- University of Windsor , Department of Chemistry and Biochemistry , Windsor , ON N9B 3P4 , Canada .
| | - Andrew I Feig
- Wayne State University , Department of Chemistry , 5101 Cass Ave. , Detroit , MI 48202 , USA
| | - John F Trant
- University of Windsor , Department of Chemistry and Biochemistry , Windsor , ON N9B 3P4 , Canada .
| | - Robin H A Ras
- Aalto University , School of Science , Department of Applied Physics , Puumiehenkuja 2 , FI-02150 , Espoo , Finland . ; .,Aalto University , School of Chemical Engineering , Department of Bioproducts and Biosystems , Kemistintie 1 , 02150 Espoo , Finland
| | - Kari Rissanen
- University of Jyvaskyla , Department of Chemistry , P. O. Box 35 , FI-40014 Jyväskylä , Finland .
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261
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Zwicker VE, Yuen KKY, Smith DG, Ho J, Qin L, Turner P, Jolliffe KA. Deltamides and Croconamides: Expanding the Range of Dual H‐bond Donors for Selective Anion Recognition. Chemistry 2017; 24:1140-1150. [DOI: 10.1002/chem.201704388] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - David G. Smith
- School of Chemistry The University of Sydney NSW 2006 Australia
| | - Junming Ho
- School of Chemistry University of New South Wales NSW 2052 Australia
| | - Lei Qin
- School of Chemistry The University of Sydney NSW 2006 Australia
| | - Peter Turner
- School of Chemistry The University of Sydney NSW 2006 Australia
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262
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Affiliation(s)
- Tomas Lizal
- Department of Chemistry and RECETOX; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Vladimir Sindelar
- Department of Chemistry and RECETOX; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
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263
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Kubik S. Anion Recognition in Aqueous Media by Cyclopeptides and Other Synthetic Receptors. Acc Chem Res 2017; 50:2870-2878. [PMID: 29125287 DOI: 10.1021/acs.accounts.7b00458] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Anion receptors often rely on coordinative or multiple ionic interactions to be active in water. In the absence of such strong interactions, anion binding in water can also be efficient, however, as demonstrated by a number of anion receptors developed in recent years. The cyclopeptide-derived receptors comprising an alternating sequence of l-proline and 6-aminopicolinic acid subunits are an example. These cyclopeptides are neutral and, at first sight, can only engage in hydrogen-bond formation with an anionic substrate. Nevertheless, they even interact with strongly solvated sulfate anions in water. The intrinsic anion affinity of these cyclopeptides can be related to structural aspects of their highly preorganized concave binding site, which comprises a wall of hydrophobic proline units arranged around the peptide NH groups at the cavity base. When anions are incorporated into this cavity they can engage in hydrogen-bonding interactions to the NH groups, and complex formation also benefits from cavity dehydration. Formation of 1:1 complexes, in which an anion binds to a single cyclopeptide ring, is associated with only small stability constants, however, whereas significantly more stable complexes are formed if the anion is buried between two cyclopeptide molecules. A major contribution to the formation of these sandwich complexes derives from the addition of the second ring to the initially formed 1:1 cyclopeptide-anion complex. This step brings the apolar proline residues of both cyclopeptides in close proximity, which causes the resulting structure to be stabilized to a large extent by hydrophobic effects. Solvent dependent binding studies provided an estimate to which degree these solvent effects contribute to the overall complex stability. In these studies, bis(cyclopeptides) were used, featuring two cyclopeptide rings covalently connected via linkers that enable both rings to simultaneously interact with the anion. Bis(cyclopeptides) with additional solubilizing groups allowed binding studies in a wide range of solvents, including in water. The systematic analysis of the solvent dependence of anion affinity yielded a quantitative correlation between complex stability and parameters relating to the solvation of the anions and solvent properties, confirming that solvent effects contribute to anion binding. Interestingly, the thermodynamic signature of complex formation in water mirrors that of sulfate binding to a protein complex but is opposite to that of other recently described anion receptors, which also do not engage in ionic or coordinative interactions with the substrate. These receptors not only differ in terms of the thermodynamics of binding from the cyclopeptides but also possess a characteristically different anion selectivity in that they prefer to bind weakly coordinating anions but fail to bind sulfate. Solvent effects likely control the anion binding of both receptors types but their impact on complex formation and anion selectivity seems to be profoundly different. Future work in the area of anion coordination chemistry will benefit from the deeper understanding of these effects and how they can be controlled.
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Affiliation(s)
- Stefan Kubik
- Fachbereich Chemie – Organische
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
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264
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Kaur B, Erdmann CA, Daniëls M, Dehaen W, Rafiński Z, Radecka H, Radecki J. Highly Sensitive Electrochemical Sensor for the Detection of Anions in Water Based on a Redox-Active Monolayer Incorporating an Anion Receptor. Anal Chem 2017; 89:12756-12763. [DOI: 10.1021/acs.analchem.7b03001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Balwinder Kaur
- Department
of Biosensors, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
| | - Cristiane Andreia Erdmann
- Departamento
de Química, Setor de Ciências Exatas e
da Terra, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Mathias Daniëls
- Chemistry
Department, University of Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Wim Dehaen
- Chemistry
Department, University of Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Zbigniew Rafiński
- Faculty
of Chemistry, Nicolaus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Hanna Radecka
- Department
of Biosensors, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
| | - Jerzy Radecki
- Department
of Biosensors, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
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265
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Wang J, Gu X, Zhang P, Huang X, Zheng X, Chen M, Feng H, Kwok RTK, Lam JWY, Tang BZ. Ionization and Anion-π + Interaction: A New Strategy for Structural Design of Aggregation-Induced Emission Luminogens. J Am Chem Soc 2017; 139:16974-16979. [PMID: 29083164 DOI: 10.1021/jacs.7b10150] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recent years have witnessed the significant role of anion-π+ interactions in many areas, which potentially brings the opportunity for the development of aggregation-induced emission (AIE) systems. Here, a new strategy that utilized anion-π+ interactions to block detrimental π-π stacking was first proposed to develop inherent-charged AIE systems. Two AIE-active luminogens, namely, 1,2,3,4-tetraphenyloxazolium (TPO-P) and 2,3,5-triphenyloxazolium (TriPO-PN), were successfully synthesized. Comprehensive techniques such as single-crystal analysis, theoretical calculation, and conductivity measurement were used to illustrate the effects of anion-π+ interactions on the AIE feature. Their analogues tetraphenylfuran (TPF) and 2,4,5-triphenyloxazole (TriPO-C) without anion-π+ interactions suffered from the aggregation-caused emission quenching in the aggregate state, demonstrating the important role of anion-π+ interactions in suppressing π-π stacking. TriPO-PN was biocompatible and could specifically target lysosome in fluorescence turn-on and wash-free manners. This suggested that it was a promising contrast agent for bioimaging.
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Affiliation(s)
- Jianguo Wang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China.,Key Laboratory of Organo-Pharmaceutical Chemistry, Gannan Normal University , Ganzhou 341000, China
| | - Xinggui Gu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Pengfei Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Xiaobo Huang
- College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou 325035, China
| | - Xiaoyan Zheng
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Ming Chen
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Haitao Feng
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering, Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, State Key Laboratory of Molecular Nanoscience, Division of Life Science and Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China.,State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute , Shenzhen 518057, China
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266
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Das R, Pathak N, Choudhury S, Borah S, Mahanta SP. Dihydrogenphosphate recognition: Assistance from the acidic OH moiety of the anion. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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267
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Affiliation(s)
- S. Byrne
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Australia
| | - K. M. Mullen
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Australia
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268
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Koeller S, Lescure MH, Davies C, Desvergne JP, Massip S, Bibal B. Hydrogen-Bonding Amidoindoles in the Presence of Anions: An X-ray Structure of a Receptor at the Acid-Base Half-Equivalence that Binds an Anion. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sylvain Koeller
- Institut des Sciences Moléculaires; UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Marie-Hélène Lescure
- Institut des Sciences Moléculaires; UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Clotilde Davies
- Institut des Sciences Moléculaires; UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Jean-Pierre Desvergne
- Institut des Sciences Moléculaires; UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Stéphane Massip
- IECB5; CNRS UMS 3033/INSERM US001; Université de Bordeaux; 2 rue Robert Escarpit 33607 Pessac France
| | - Brigitte Bibal
- Institut des Sciences Moléculaires; UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
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269
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Halogen Bonds Formed between Substituted Imidazoliums and N Bases of Varying N-Hybridization. Molecules 2017; 22:molecules22101634. [PMID: 28961202 PMCID: PMC6151534 DOI: 10.3390/molecules22101634] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/26/2017] [Accepted: 09/27/2017] [Indexed: 12/16/2022] Open
Abstract
Heterodimers are constructed containing imidazolium and its halogen-substituted derivatives as Lewis acid. N in its sp³, sp² and sp hybridizations is taken as the electron-donating base. The halogen bond is strengthened in the Cl < Br < I order, with the H-bond generally similar in magnitude to the Br-bond. Methyl substitution on the N electron donor enhances the binding energy. Very little perturbation arises if the imidazolium is attached to a phenyl ring. The energetics are not sensitive to the hybridization of the N atom. More regular patterns appear in the individual phenomena. Charge transfer diminishes uniformly on going from amine to imine to nitrile, a pattern that is echoed by the elongation of the C-Z (Z=H, Cl, Br, I) bond in the Lewis acid. These trends are also evident in the Atoms in Molecules topography of the electron density. Molecular electrostatic potentials are not entirely consistent with energetics. Although I of the Lewis acid engages in a stronger bond than does H, it is the potential of the latter which is much more positive. The minimum on the potential of the base is most negative for the nitrile even though acetonitrile does not form the strongest bonds. Placing the systems in dichloromethane solvent reduces the binding energies but leaves intact most of the trends observed in vacuo; the same can be said of ∆G in solution.
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270
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Amendola V, Bergamaschi G, Guglielmo L, Izzo L, Mangano C, Mella M, Milanese C, Miljkovic A. Dicopper(II) MozobilTM: a dinuclear receptor for the pyrophosphate anion in aqueous solution. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1373194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Valeria Amendola
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
| | - Greta Bergamaschi
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Milano, Italy
| | | | - Lorella Izzo
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Fisciano, Italy
| | - Carlo Mangano
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
| | - Massimo Mella
- Dipartimento di Scienza ed Alta Tecnologia, Università degli Studi dell'Insubria, Como, Italy
| | - Chiara Milanese
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
| | - Ana Miljkovic
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
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271
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Cova TF, Nunes SC, Valente AJ, Pinho e Melo TM, Pais AA. Properties and patterns in anion-receptors: A closer look at bambusurils. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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272
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Maji S, Mandal D. Perfluoroalkylated Calix[4]pyrroles: Fluoride Ion Extraction from an Aqueous Medium. Chem Asian J 2017; 12:2369-2373. [DOI: 10.1002/asia.201700897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/19/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Sinchan Maji
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Punjab 140001 India
| | - Debaprasad Mandal
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Punjab 140001 India
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273
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Yan J, Kang C, Ma X, Du Z, Bian Z, Jin R, Gao L. Weakly Basic Anion Recognition by Naphthalenediimide-Based Polymer. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jijun Yan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Chuanqing Kang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
| | - Xiaoye Ma
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
| | - Zhijun Du
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
| | - Zheng Bian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
| | - Rizhe Jin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
| | - Lianxun Gao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; 5625 Renmin Street Changchun 130022 P.R. China
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274
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Hartman CK, Mezei G. Mapping the Intricate Reactivity of Nanojars toward Molecules of Varying Acidity and Their Conjugate Bases Leading To Exchange of Pyrazolate Ligands. Inorg Chem 2017; 56:10609-10624. [DOI: 10.1021/acs.inorgchem.7b01593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Christian K. Hartman
- Department of Chemistry, Western Michigan University, Kalamazoo 49008, Michigan, United States
| | - Gellert Mezei
- Department of Chemistry, Western Michigan University, Kalamazoo 49008, Michigan, United States
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275
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Wang X, Zhang Q, Nam C, Hickner M, Mahoney M, Meyerhoff ME. An Ionophore-Based Anion-Selective Optode Printed on Cellulose Paper. Angew Chem Int Ed Engl 2017; 56:11826-11830. [PMID: 28715617 DOI: 10.1002/anie.201706147] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Indexed: 11/09/2022]
Abstract
A general anion-sensing platform is reported based on a portable and cost-effective ion-selective optode and a smartphone detector equipped with a color analysis app. In contrast to traditional anion-selective optodes using a hydrophobic polymer and/or plasticizer to dissolve hydrophobic sensing elements, the new optode relies on hydrophilic cellulose paper. The anion ionophore and a lipophilic pH indicator are inkjet-printed and adsorbed on paper and form a "dry" hydrophobic sensing layer. Porous cellulose sheets also allow the sensing site to be modified with dried buffer that prevents any sample pH dependence of the observed color change. A highly selective fluoride optode using an AlIII -porphyrin ionophore is examined as an initial example of this new anion sensing platform for measurements of fluoride levels in drinking water samples. Apart from Lewis acid-base recognition, hydrogen bonding recognition is also compatible with this sensing platform.
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Affiliation(s)
- Xuewei Wang
- Department of Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Qi Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Changwoo Nam
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Michael Hickner
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Mollie Mahoney
- Department of Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
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276
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Wang X, Zhang Q, Nam C, Hickner M, Mahoney M, Meyerhoff ME. An Ionophore-Based Anion-Selective Optode Printed on Cellulose Paper. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xuewei Wang
- Department of Chemistry; University of Michigan; Ann Arbor MI 48109 USA
| | - Qi Zhang
- Department of Chemistry; University of Michigan; Ann Arbor MI 48109 USA
| | - Changwoo Nam
- Department of Materials Science and Engineering; Pennsylvania State University; University Park PA 16802 USA
| | - Michael Hickner
- Department of Materials Science and Engineering; Pennsylvania State University; University Park PA 16802 USA
| | - Mollie Mahoney
- Department of Chemistry; University of Michigan; Ann Arbor MI 48109 USA
| | - Mark E. Meyerhoff
- Department of Chemistry; University of Michigan; Ann Arbor MI 48109 USA
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277
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Sommer F, Marcus Y, Kubik S. Effects of Solvent Properties on the Anion Binding of Neutral Water-Soluble Bis(cyclopeptides) in Water and Aqueous Solvent Mixtures. ACS OMEGA 2017; 2:3669-3680. [PMID: 31457681 PMCID: PMC6641638 DOI: 10.1021/acsomega.7b00867] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 07/03/2017] [Indexed: 05/31/2023]
Abstract
In this study, the anion-binding bis(cyclopeptide) 2 is introduced, which dissolves freely in water, affording up to 10 mM concentrations, thanks to triethylene glycol-derived substituents in the cyclopeptide subunits and the linker connecting them. Binding studies provided evidence that the anion affinity previously demonstrated for less-soluble analogs of this compound is retained under highly competitive aqueous conditions. The highest affinity in water was observed for iodide, closely followed by sulfate anions, whereas binding of soft and weakly coordinating anions could not be observed. The anion selectivity of 2 thus differs from that of other recently described receptors, which also do not require electrostatic or coordinative interactions for anion binding in water but typically fail to bind strongly coordinating sulfate anions. The ability of 2 to overcome sulfate hydration is attributed to the special mode of binding, combining direct N-H···A- interactions with the release of water molecules from the receptor cavity. The characterization of the anion binding of 2 and a related bis(cyclopeptide) in a variety of different solvents and aqueous solvent mixtures furthermore allowed the correlation of the binding properties with solvent parameters. These analyses provided qualitative and even quantitative insights into the solvent properties and solvation phenomena that mainly affect anion complexation.
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Affiliation(s)
- Fabian Sommer
- Fachbereich
Chemie—Organische Chemie, Technische
Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
| | - Yizhak Marcus
- Institute
of Chemistry, The Hebrew University, Edmund Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Stefan Kubik
- Fachbereich
Chemie—Organische Chemie, Technische
Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
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278
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Jin CE, Lee TY, Koo B, Choi KC, Chang S, Park SY, Kim JY, Kim SH, Shin Y. Use of Dimethyl Pimelimidate with Microfluidic System for Nucleic Acids Extraction without Electricity. Anal Chem 2017. [PMID: 28633525 DOI: 10.1021/acs.analchem.7b01193] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The isolation of nucleic acids in the lab on a chip is crucial to achieve the maximal effectiveness of point-of-care testing for detection in clinical applications. Here, we report on the use of a simple and versatile single-channel microfluidic platform that combines dimethyl pimelimidate (DMP) for nucleic acids (both RNA and DNA) extraction without electricity using a thin-film system. The system is based on the adaption of DMP into nonchaotropic-based nucleic acids and the capture of reagents into a low-cost thin-film platform for use as a microfluidic total analysis system, which can be utilized for sample processing in clinical diagnostics. Moreover, we assessed the use of the DMP system for the extraction of nucleic acids from various samples, including mammalian cells, bacterial cells, and viruses from human disease, and we also confirmed that the quality and quantity of the nucleic acids extracted were sufficient to allow for the robust detection of biomarkers and/or pathogens in downstream analysis. Furthermore, this DMP system does not require any instruments and electricity, and has improved time efficiency, portability, and affordability. Thus, we believe that the DMP system may change the paradigm of sample processing in clinical diagnostics.
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Affiliation(s)
- Choong Eun Jin
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine Biomedical Engineering Research Center, Asan Institute of Life Sciences, Asan Medical Center , 88 Olympicro-43gil, Songpa-gu, Seoul 05505, Republic of Korea
| | - Tae Yoon Lee
- Department of Technology Education and Department of Biomedical Engineering, Chungnam National University , Daejeon 34134, Republic of Korea
| | - Bonhan Koo
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine Biomedical Engineering Research Center, Asan Institute of Life Sciences, Asan Medical Center , 88 Olympicro-43gil, Songpa-gu, Seoul 05505, Republic of Korea
| | - Kyung-Chul Choi
- Department of Biomedical Sciences and Department of Pharmacology, University of Ulsan College of Medicine , Seoul 05505, Republic of Korea
| | - Suhwan Chang
- Department of Biomedical Sciences, University of Ulsan College of Medicine , Seoul 05505, Republic of Korea
| | - Se Yoon Park
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul 05505, Republic of Korea.,Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine , Seoul 140-743, Republic of Korea
| | - Ji Yeun Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul 05505, Republic of Korea
| | - Sung-Han Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul 05505, Republic of Korea
| | - Yong Shin
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine Biomedical Engineering Research Center, Asan Institute of Life Sciences, Asan Medical Center , 88 Olympicro-43gil, Songpa-gu, Seoul 05505, Republic of Korea
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279
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Havel V, Babiak M, Sindelar V. Modulation of Bambusuril Anion Affinity in Water. Chemistry 2017; 23:8963-8968. [DOI: 10.1002/chem.201701316] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Vaclav Havel
- Department of Chemistry; Masaryk University, Faculty of Science; Kamenice 5 625 00 Brno Czech Republic
- RECETOX-Research Centre for Toxic Compounds in the Environment; Masaryk University, Faculty of Science; Kamenice 5 625 00 Brno Czech Republic
| | - Michal Babiak
- Department of Chemistry; Masaryk University, Faculty of Science; Kamenice 5 625 00 Brno Czech Republic
- CEITEC-Central European Institute of Technology and National Centre for Biomolecular Research; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Vladimir Sindelar
- Department of Chemistry; Masaryk University, Faculty of Science; Kamenice 5 625 00 Brno Czech Republic
- RECETOX-Research Centre for Toxic Compounds in the Environment; Masaryk University, Faculty of Science; Kamenice 5 625 00 Brno Czech Republic
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280
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Scheiner S. Assembly of Effective Halide Receptors from Components. Comparing Hydrogen, Halogen, and Tetrel Bonds. J Phys Chem A 2017; 121:3606-3615. [DOI: 10.1021/acs.jpca.7b02305] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Steve Scheiner
- Department of Chemistry and
Biochemistry Utah State University, Logan, Utah 84322-0300, United States
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281
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Ghosh TK, Chakraborty S, Chowdhury B, Ghosh P. Bis-Heteroleptic Ruthenium(II) Complex of Pendant Urea Functionalized Pyridyl Triazole and Phenathroline for Recognition, Sensing, and Extraction of Oxyanions. Inorg Chem 2017; 56:5371-5382. [DOI: 10.1021/acs.inorgchem.7b00473] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamal Kanti Ghosh
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Sourav Chakraborty
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Bijit Chowdhury
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Pradyut Ghosh
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700032, India
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282
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Yang D, Zhao J, Yu L, Lin X, Zhang W, Ma H, Gogoll A, Zhang Z, Wang Y, Yang XJ, Wu B. Air- and Light-Stable P 4 and As 4 within an Anion-Coordination-Based Tetrahedral Cage. J Am Chem Soc 2017; 139:5946-5951. [PMID: 28335592 DOI: 10.1021/jacs.7b01890] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In contrast to the stable dinitrogen molecule, white phosphorus (P4) and yellow arsenic (As4) are very reactive allotropic modifications of these two heavier pnictogen elements, which has greatly hampered the study of their properties and applications. Thus, the safe storage and transport of them is imperative. Supramolecular caged structures are one of the most efficient approaches for the encapsulation and stabilization of reactive species; however, their use in the P4 and As4 chemistry is very rare. In the current work, we demonstrate a new design strategy for constructing finite cages and including guests based on anion coordination chemistry. The phosphate-coordination-based tetrahedral cages can readily accommodate the tetrahedral guests P4 and As4, which is facilitated by the shape and size complementarity as well as favorable σ-π and lone-pair-π interactions. Moreover, the latter case represents the first example of As4 inclusion in a well-defined tetrahedral cage.
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Affiliation(s)
- Dong Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Le Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Xiangsong Lin
- School of Materials and Textile Engineering, Jiaxing University , Jiaxing 314001, China
| | - Wenyao Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Hongwei Ma
- Analysis and Testing Center, Beijing Institute of Technology , Beijing 102488, China
| | - Adolf Gogoll
- Department of Chemistry-BMC, Uppsala University , Box 576, Uppsala SE-751 23, Sweden
| | - Zhibin Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Yaoyu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Xiao-Juan Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an 710069, China
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283
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Avilés-Moreno JR, Berden G, Oomens J, Martínez-Haya B. Benchmark Ditopic Binding of Cl−
and Cs+
by the Macrocycle Hexacyclen. Chemphyschem 2017; 18:1324-1332. [DOI: 10.1002/cphc.201700091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 02/17/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Juan Ramón Avilés-Moreno
- Department of Physical, Chemical and Natural Systems; Universidad Pablo de Olavide; 41013 Seville Spain
| | - Giel Berden
- Institute for Molecules and Materials; FELIX Laboratory; Radboud University; Toernooiveld 7c 6525 ED Nijmegen The Netherlands
| | - Jos Oomens
- Institute for Molecules and Materials; FELIX Laboratory; Radboud University; Toernooiveld 7c 6525 ED Nijmegen The Netherlands
| | - Bruno Martínez-Haya
- Department of Physical, Chemical and Natural Systems; Universidad Pablo de Olavide; 41013 Seville Spain
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284
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Kaabel S, Adamson J, Topić F, Kiesilä A, Kalenius E, Öeren M, Reimund M, Prigorchenko E, Lõokene A, Reich HJ, Rissanen K, Aav R. Chiral hemicucurbit[8]uril as an anion receptor: selectivity to size, shape and charge distribution. Chem Sci 2017; 8:2184-2190. [PMID: 28694954 PMCID: PMC5477839 DOI: 10.1039/c6sc05058a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 11/29/2016] [Indexed: 01/31/2023] Open
Abstract
A novel eight-membered macrocycle of the hemicucurbit[n]uril family, chiral (all-R)-cyclohexanohemicucurbit[8]uril (cycHC[8]) ‡The name cyclohexylhemicucurbituril, previously used for these macrocycles, is changed in accordance with the IUPAC nomenclature for fused cycles, as the cyclohexane substituents are fused with the parent hemicucurbituril. binds anions in a purely protic solvent with remarkable selectivity. The cycHC[8] portals open and close to fully encapsulate anions in a 1 : 1 ratio, resembling a molecular Pac-Man™. Comprehensive gas, solution and solid phase studies prove that the binding is governed by the size, shape and charge distribution of the bound anion. Gas phase studies show an order of SbF6- ≈ PF6- > ReO4- > ClO4- > SCN- > BF4- > HSO4- > CF3SO3- for anion complexation strength. An extensive crystallographic study reveals the preferred orientations of the anions within the octahedral cavity of cycHC[8] and highlights the importance of the size- and shape-matching between the anion and the receptor cavity. The solution studies show the strongest binding of the ideally fitting SbF6- anion, with an association constant of 2.5 × 105 M-1 in pure methanol. The symmetric, receptor cavity-matching charge distribution of the anions results in drastically stronger binding than in the case of anions with asymmetric charge distribution. Isothermal titration calorimetry (ITC) reveals the complexation to be exothermic and enthalpy-driven. The DFT calculations and VT-NMR studies confirmed that the complexation proceeds through a pre-complex formation while the exchange of methanol solvent with the anion is the rate-limiting step. The octameric cycHC[8] offers a unique example of template-controlled design of an electroneutral host for binding large anions in a competitive polar solvent.
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Affiliation(s)
- Sandra Kaabel
- Department of Chemistry , Tallinn University of Technology , Akadeemia tee 15 , 12618 Tallinn , Estonia .
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35 , FI-40014 Jyvaskyla , Finland .
| | - Jasper Adamson
- National Institute of Chemical Physics and Biophysics , Akadeemia tee 23 , 12618 Tallinn , Estonia
| | - Filip Topić
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35 , FI-40014 Jyvaskyla , Finland .
| | - Anniina Kiesilä
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35 , FI-40014 Jyvaskyla , Finland .
| | - Elina Kalenius
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35 , FI-40014 Jyvaskyla , Finland .
| | - Mario Öeren
- Department of Chemistry , Tallinn University of Technology , Akadeemia tee 15 , 12618 Tallinn , Estonia .
| | - Mart Reimund
- Department of Chemistry , Tallinn University of Technology , Akadeemia tee 15 , 12618 Tallinn , Estonia .
| | - Elena Prigorchenko
- Department of Chemistry , Tallinn University of Technology , Akadeemia tee 15 , 12618 Tallinn , Estonia .
| | - Aivar Lõokene
- Department of Chemistry , Tallinn University of Technology , Akadeemia tee 15 , 12618 Tallinn , Estonia .
| | - Hans J Reich
- Department of Chemistry , University of Wisconsin , Madison , WI 53706 , USA
| | - Kari Rissanen
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35 , FI-40014 Jyvaskyla , Finland .
| | - Riina Aav
- Department of Chemistry , Tallinn University of Technology , Akadeemia tee 15 , 12618 Tallinn , Estonia .
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285
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286
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Morshedi M, Thomas M, Tarzia A, Doonan CJ, White NG. Supramolecular anion recognition in water: synthesis of hydrogen-bonded supramolecular frameworks. Chem Sci 2017; 8:3019-3025. [PMID: 28451369 PMCID: PMC5380882 DOI: 10.1039/c7sc00201g] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 02/03/2017] [Indexed: 12/15/2022] Open
Abstract
The interaction of tetratopic amidinium-containing receptors with terephthalate anions leads to porous framework materials assembled through charge-assisted hydrogen bonds. The frameworks form in good yield within minutes in water at room temperature, but no framework material is obtained if other anions (Cl-, Br-, NO3-, SO42- or isophthalate2-) are used in place of terephthalate. Two forms of the framework can be prepared: one with a connected pore network, and a more dense phase with discrete voids. We demonstrate that these are the kinetic and thermodynamic products, respectively. Either framework can be prepared independently and can be converted to the other form in response to stimuli. Furthermore, the frameworks can be controllably disassembled and reassembled in response to acid/base triggers suggesting that this new class of materials may have applications in the selective encapsulation and release of guests.
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Affiliation(s)
- Mahbod Morshedi
- Research School of Chemistry , The Australian National University , Canberra , ACT , Australia . ; http://www.nwhitegroup.com
| | - Michael Thomas
- Research School of Chemistry , The Australian National University , Canberra , ACT , Australia . ; http://www.nwhitegroup.com
| | - Andrew Tarzia
- Department of Chemistry and Centre for Advanced Materials , The University of Adelaide , Adelaide , SA , Australia
| | - Christian J Doonan
- Department of Chemistry and Centre for Advanced Materials , The University of Adelaide , Adelaide , SA , Australia
| | - Nicholas G White
- Research School of Chemistry , The Australian National University , Canberra , ACT , Australia . ; http://www.nwhitegroup.com
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287
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Řezanková M, Budka J, Mikšátko J, Eigner V, Císařová I, Cuřínová P, Lhoták P. Anion receptors based on intramolecularly bridged calix[4]arenes bearing ureido functions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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288
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Rodríguez J, Mosquera J, Couceiro JR, Nitschke JR, Vázquez ME, Mascareñas JL. Anion Recognition as a Supramolecular Switch of Cell Internalization. J Am Chem Soc 2017; 139:55-58. [PMID: 27984855 PMCID: PMC5389450 DOI: 10.1021/jacs.6b11103] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The cell internalization of designed oligoarginine peptides equipped with six glutamic acid residues and an anionic pyranine at the N-terminus is triggered upon addition of a supramolecular host. This host binds specifically to the pyranine moiety, enabling the complex to traverse the cell membrane. Interestingly, none of the components, neither the host nor the guest, are able to cross the cell membrane on their own.
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Affiliation(s)
- Jéssica Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jesús Mosquera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - José R. Couceiro
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jonathan R. Nitschke
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - M. Eugenio Vázquez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - José L. Mascareñas
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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289
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Ruiz-Botella S, Vidossich P, Ujaque G, Peris E, Beer PD. Tripodal halogen bonding iodo-azolium receptors for anion recognition. RSC Adv 2017. [DOI: 10.1039/c6ra28082j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The preparation and anion binding properties of 1,3,5-tri-substituted benzene platform-based tripodal receptors containing halogen bonding (XB) iodo-imidazolium and iodo-triazolium motifs, and hydrogen bonding (HB) analogues are described.
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Affiliation(s)
- Sheila Ruiz-Botella
- Institute of Advanced Materials (INAM)
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Jaume I
- 12071 Castellón
- Spain
| | - Pietro Vidossich
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Autònoma de Barcelona
- Catalonia
- Spain
| | - Gregori Ujaque
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Autònoma de Barcelona
- Catalonia
- Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Jaume I
- 12071 Castellón
- Spain
| | - Paul D. Beer
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford OX1 3TA
- UK
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290
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Guadalupe Hernández J, Huerta-Aguilar CA, Thangarasu P, Höpfl H. A ruthenium(iii) complex derived from N,N′-bis(salicylidene)ethylenediamine as a chemosensor for the selective recognition of acetate and its interaction with cells for bio-imaging: experimental and theoretical studies. NEW J CHEM 2017. [DOI: 10.1039/c7nj01591g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A ruthenium(iii) complex ofN,N′-bis(salicylidene)ethylenediamine (L1) was used as chemosensor for the recognition of acetate in cells for bio-imaging.
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Affiliation(s)
- José Guadalupe Hernández
- Centro Tecnológico
- Facultad de Estudios Superiores (FES-Aragón)
- Universidad Nacional Autónoma de México (UNAM)
- Estado de México
- Mexico
| | | | - Pandiyan Thangarasu
- Facultad de Química
- Universidad Nacional Autónoma de México (UNAM)
- Ciudad Universitaria
- Mexico
| | - Herbert Höpfl
- Centro de Investigaciones Químicas
- Instituto de Investigación en Ciencias Básicas y Aplicadas
- Universidad Autónoma del Estado de Morelos. Av. Universidad 1001
- Cuernavaca
- Mexico
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291
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Cornes SP, Sambrook MR, Beer PD. Selective perrhenate recognition in pure water by halogen bonding and hydrogen bonding alpha-cyclodextrin based receptors. Chem Commun (Camb) 2017; 53:3866-3869. [DOI: 10.1039/c7cc01605k] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alpha-cyclodextrin based anion receptors containing halogen and hydrogen bond donor motifs display selective association of perrhenate in neutral aqueous media.
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Affiliation(s)
- Stuart P. Cornes
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | | | - Paul D. Beer
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
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292
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Scheiner S. Comparison of halide receptors based on H, halogen, chalcogen, pnicogen, and tetrel bonds. Faraday Discuss 2017; 203:213-226. [DOI: 10.1039/c7fd00043j] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A series of halide receptors are constructed and the geometries and energetics of their binding to F−, Cl−, and Br−assessed by quantum calculations. The dicationic receptors are based on a pair of imidazolium units, connectedviaa benzene spacer. The imidazoliums each donate a proton to a halide in a pair of H-bonds. Replacement of the two bonding protons by Br leads to bindingviaa pair of halogen bonds. Likewise, chalcogen, pnicogen, and tetrel bonds occur when the protons are replaced, respectively, by Se, As, and Ge. Regardless of the binding group considered, F−is bound much more strongly than are Cl−and Br−. With respect to the latter two halides, the binding energy is not very sensitive to the nature of the binding atom, whether H or some other atom. But there is a great deal of differentiation with respect to F−, where the order varies as tetrel > H ∼ pnicogen > halogen > chalcogen. The replacement of the various binding atoms by their analogues in the next row of the periodic table enhances the fluoride binding energy by 22–56%. The strongest fluoride binding agents utilize the tetrel bonds of the Sn atom, whereas it is I-halogen bonds that are preferred for Cl−and Br−. After incorporation of thermal and entropic effects, the halogen, chalcogen, and pnicogen bonding receptors do not represent much of an improvement over H-bonds with regard to this selectivity for F−, even I which binds quite strongly. In stark contrast, the tetrel-bonding derivatives, both Ge and Sn, show by far the greatest selectivity for F−over the other halides, as much as 1013, an enhancement of six orders of magnitude when compared to the H-bonding receptor.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry
- Utah State University
- Logan
- USA
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293
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Fukutsuka T, Abe T. . ELECTROCHEMISTRY 2017; 85:479-483. [DOI: 10.5796/electrochemistry.85.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] Open
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294
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Mittapalli RR, Namashivaya SSR, Oshchepkov AS, Shumilova TA, Rüffer T, Lang H, Kataev EA. Selective recognition of oxalate in water: effect of pH on binding strength and sensing mechanisms. Chem Commun (Camb) 2017; 53:11345-11348. [DOI: 10.1039/c7cc06955c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
New anthracene-containing azacryptands can selectively detect oxalate in a buffered aqueous solution at pH 6.2 showing a 10-fold fluorescence enhancement.
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Affiliation(s)
- Ramana R. Mittapalli
- University of Greenwich Medway Campus, Grenville building, School of Science
- Gillingham
- UK
| | | | | | | | - Tobias Rüffer
- Institute of Chemistry Technische Universität Chemnitz
- Chemnitz
- Germany
| | - Heinrich Lang
- Institute of Chemistry Technische Universität Chemnitz
- Chemnitz
- Germany
| | - Evgeny A. Kataev
- Institute of Chemistry Technische Universität Chemnitz
- Chemnitz
- Germany
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295
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Ke YT, Chou WT, Chiang YF, Hsieh CC, Horng YC. Efficient and selective separation of aqueous sulfate through recognition and precipitation. NEW J CHEM 2017. [DOI: 10.1039/c6nj03710k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Sulfate anions are selectively separated from aqueous solution in the form of precipitates by a mono-protonated organic receptor, constructed in situ through anion-templated chemical synthesis.
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Affiliation(s)
- Ya-Ting Ke
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058
- Taiwan
| | - Wei-Tzu Chou
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058
- Taiwan
| | - Yi-Fen Chiang
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058
- Taiwan
| | - Chang-Chih Hsieh
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058
- Taiwan
| | - Yih-Chern Horng
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058
- Taiwan
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296
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Koeller S, Lescure MH, Davies C, Desvergne JP, Massip S, Bibal B. Insight into the deprotonation at the half-equivalence point of (thio)amido-benzimidazoles in the presence of anions. Org Biomol Chem 2017; 15:7263-7266. [DOI: 10.1039/c7ob01704a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three crystallographic structures highlight the acid–base half-equivalence point of hydrogen-bond donor (thio)amido-benzimidazoles induced by fluoride or benzoate salts with concomitant hydrogen-bonding and deprotonation as a merged synergic process.
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Affiliation(s)
- S. Koeller
- Université de Bordeaux
- Institut des Sciences Moléculaires UMR 5255
- 33405 Talence
- France
| | - M.-H. Lescure
- Université de Bordeaux
- Institut des Sciences Moléculaires UMR 5255
- 33405 Talence
- France
| | - C. Davies
- Université de Bordeaux
- Institut des Sciences Moléculaires UMR 5255
- 33405 Talence
- France
| | - J.-P. Desvergne
- Université de Bordeaux
- Institut des Sciences Moléculaires UMR 5255
- 33405 Talence
- France
| | - S. Massip
- Université de Bordeaux
- IECB
- CNRS UMS 3033/INSERM US001
- 33607 Pessac
- France
| | - B. Bibal
- Université de Bordeaux
- Institut des Sciences Moléculaires UMR 5255
- 33405 Talence
- France
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297
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Romero JR, Aragay G, Ballester P. Ion-pair recognition by a neutral [2]rotaxane based on a bis-calix[4]pyrrole cyclic component. Chem Sci 2017; 8:491-498. [PMID: 28451196 PMCID: PMC5341206 DOI: 10.1039/c6sc03554j] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 08/28/2016] [Indexed: 01/04/2023] Open
Abstract
In this work, we report our investigations on the synthesis of a [2]rotaxane based on a bis(calix[4]pyrrole) cyclic component and a 3,5-bis-amidepyridyl-N-oxide derivative axle. We isolated the [2]rotaxane in a significant 50% yield through an optimized "in situ" capping strategy using the copper(i)-catalyzed azide-alkyne cycloaddition reaction. The synthetic precursor of the [2]rotaxane, featuring [2]pseudorotaxane topology, could be quantitatively assembled in solution in the presence of one equivalent of tetrabutylammonium chloride or cyanate salts producing a four-particle aggregate. However, we observed that the addition of the salt was deleterious not only for the isolation of the [2]rotaxane in its pure form but, more important, for the optimal performance of the copper catalyst. We probed the interaction of the prepared [2]rotaxane with tetraalkylammonium salts of chloride, nitrate and cyanate anions by means of 1H NMR titrations and ITC experiments. We show that in chloroform solution the [2]rotaxane functions as an efficient heteroditopic receptor for the salts forming thermodynamically and kinetically highly stable ion-paired complexes with 1 : 1 stoichiometry. At millimolar concentration and using 1H NMR spectroscopy we observed that the addition of more than 1 equiv. of the salt induced the gradual disassembly of the 1 : 1 complex of the [2]rotaxane and the concomitant formation of higher stoichiometry aggregates i.e. 2 : 1 complexes.
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Affiliation(s)
- J Ramón Romero
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Avgda. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Gemma Aragay
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Avgda. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Avgda. Països Catalans 16 , 43007 Tarragona , Spain .
- ICREA , Passeig Lluís Companys, 23 , 08010 Barcelona , Spain
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298
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Montero-Campillo MM, Corral I, Mó O, Yáñez M, Alkorta I, Elguero J. Beryllium-based fluorenes as efficient anion sponges. Phys Chem Chem Phys 2017; 19:23052-23059. [DOI: 10.1039/c7cp03664g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The F−, Cl−, CN−, NO2−, NO3−, and SO42− anion affinities of 4,5-bis(BeX)-fluorene (X = H, F, Cl, CN, NC, and OCH3) derivatives have been calculated at the B3LYP/6-311+G(3df,2p)//B3LYP/6-31+G(d,p) level of theory.
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Affiliation(s)
| | - Inés Corral
- Departamento de Química
- Facultad de Ciencias
- Módulo 13
- and Institute of Advanced Chemical Sciences (IadChem) Universidad Autónoma de Madrid
- Campus de Excelencia UAM-CSIC
| | - Otilia Mó
- Departamento de Química
- Facultad de Ciencias
- Módulo 13
- and Institute of Advanced Chemical Sciences (IadChem) Universidad Autónoma de Madrid
- Campus de Excelencia UAM-CSIC
| | - Manuel Yáñez
- Departamento de Química
- Facultad de Ciencias
- Módulo 13
- and Institute of Advanced Chemical Sciences (IadChem) Universidad Autónoma de Madrid
- Campus de Excelencia UAM-CSIC
| | - Ibon Alkorta
- Instituto de Química Médica
- CSIC
- 28006 Madrid
- Spain
| | - José Elguero
- Instituto de Química Médica
- CSIC
- 28006 Madrid
- Spain
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299
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Rodrigo AC, Laurini E, Vieira VMP, Pricl S, Smith DK. Effect of buffer at nanoscale molecular recognition interfaces – electrostatic binding of biological polyanions. Chem Commun (Camb) 2017; 53:11580-11583. [DOI: 10.1039/c7cc07413a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The electrostatic binding of polyanionic heparin by cationic receptors is highly dependent on the buffer in which the binding assay is carried out.
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Affiliation(s)
| | - Erik Laurini
- Simulation Engineering (MOSE) Laboratory
- Department of Engineering and Architectures (DEA)
- University of Trieste
- Trieste
- Italy
| | | | - Sabrina Pricl
- Simulation Engineering (MOSE) Laboratory
- Department of Engineering and Architectures (DEA)
- University of Trieste
- Trieste
- Italy
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300
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Wierzbicka C, Liu M, Bauer D, Irgum K, Sellergren B. Cationic pTyr/pSer imprinted polymers based on a bis-imidazolium host monomer: phosphopeptide recognition in aqueous buffers demonstrated by μ-liquid chromatography and monolithic columns. J Mater Chem B 2017; 5:953-960. [DOI: 10.1039/c6tb02864k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Capillary monoliths featuring grafted molecularly imprinted polymer films incorporating on a bis-imidazolium host monomer, displayed a remarkable crossreactivity with phosphorylated peptides in buffered media.
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Affiliation(s)
- Celina Wierzbicka
- Department of Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- Malmö
- Sweden
| | - Mingquan Liu
- Department of Chemistry
- Umeå University
- 901 87 Umeå
- Sweden
| | - David Bauer
- Department of Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- Malmö
- Sweden
| | - Knut Irgum
- Department of Chemistry
- Umeå University
- 901 87 Umeå
- Sweden
| | - Börje Sellergren
- Department of Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- Malmö
- Sweden
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