1
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Bao W, Gu G, Wu J, Gu YC, Zhao Y. Detection and Identification of Nitrile Compounds via Recognition-Enabled Chromatographic 19F NMR. Anal Chem 2024; 96:4463-4468. [PMID: 38462969 DOI: 10.1021/acs.analchem.3c04909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The surge in applications of nitrile compounds across diverse fields, such as pharmaceuticals, agrochemicals, dyes, and functional materials, necessitates the development of rapid and efficient detection and identification methods. In this study, we introduce a chemosensing strategy employing a novel 19F-labeled probe, facilitating swift and accurate analysis of a broad spectrum of nitrile-containing analytes. This approach leverages the reversible interaction between the 19F-labeled probe and the analytes to produce chromatogram-like outputs, ensuring the precise identification of various pharmaceuticals and pesticides within complex matrices. Additionally, this dynamic system offers a versatile platform to investigate through-space 19F-19F interactions, showcasing its potential for future applications in mechanistic studies.
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Affiliation(s)
- Wenjing Bao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Guangxing Gu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jian Wu
- Instrumental Analysis Center, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yu-Cheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
- Instrumental Analysis Center, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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2
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Xu Z, Zhao Y. 19 F-Labeled Probes for Recognition-Enabled Chromatographic 19 F NMR. CHEM REC 2023; 23:e202300031. [PMID: 37052541 DOI: 10.1002/tcr.202300031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/05/2023] [Indexed: 04/14/2023]
Abstract
The NMR technique is among the most powerful analytical methods for molecular structural elucidation, process monitoring, and mechanistic investigations; however, the direct analysis of complex real-world samples is often hampered by crowded NMR spectra that are difficult to interpret. The combination of fluorine chemistry and supramolecular interactions leads to a unique detection method named recognition-enabled chromatographic (REC) 19 F NMR, where interactions between analytes and 19 F-labeled probes are transduced into chromatogram-like 19 F NMR signals of discrete chemical shifts. In this account, we summarize our endeavor to develop novel 19 F-labeled probes tailored for separation-free multicomponent analysis. The strategies to achieve chiral discrimination, sensitivity enhancement, and automated analyte identification will be covered. The account will also provide a detailed discussion of the underlying principles for the design of molecular probes for REC 19 F NMR where appropriate.
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Affiliation(s)
- Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
- Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
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3
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19F NMR Chemical Shifts Are Sensitive to Remote Functional Group Variations. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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4
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Lu Y, Sun M, Xi N. Effects of fluorine bonding and nonbonding interactions on 19F chemical shifts. RSC Adv 2022; 12:32082-32096. [PMID: 36415555 PMCID: PMC9644289 DOI: 10.1039/d2ra06660b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/03/2023] Open
Abstract
19F-NMR signals are sensitive to local electrostatic fields and are useful in probing protein structures and dynamics. Here, we used chemically identical ortho-F nuclei in N-phenyl γ-lactams to investigate the relationship between 19F NMR chemical shifts and local environments. By varying the structures at the C5- and C7-substituents, we demonstrated that 19F shifts and Hammett coefficients in Hammett plots follow typical relationships in bonding interactions, while manifesting reverse correlations in nonbonding contacts. Quantum mechanics calculations revealed that one of the ortho-F nuclei engages in n → π* orbital delocalization between F lone pair electrons (n) and a C[double bond, length as m-dash]O/Ar[double bond, length as m-dash]N antibonding orbital (π*), and the other ortho-F nucleus exhibits n ↔ σ orbital polarization between the n electrons and the C-H σ bonding orbital. As 19F NMR spectroscopy find increasing use in molecular sensors and biological sciences, our findings are valuable for designing sensitive probes, elucidating molecular structures, and quantifying analytes.
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Affiliation(s)
- Yang Lu
- Institute of Drug Discovery Technology, Ningbo University Ningbo Zhejiang 315211 P. R. China
| | - Mingming Sun
- Department of Chemistry, Nanchang University 999 Xuefu Avenue Nanchang 330031 P. R. China
| | - Ning Xi
- Institute of Drug Discovery Technology, Ningbo University Ningbo Zhejiang 315211 P. R. China
- School of Medicine, Ningbo University Ningbo Zhejiang 315211 P. R. China
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5
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Gao XD, Hu Y, Wang WF, Zhao XB, Du XZ, Shi YP. Rapid and Selective 19F NMR-Based Sensors for Fingerprint Identification of Ribose. Anal Chem 2022; 94:11564-11572. [PMID: 35968680 DOI: 10.1021/acs.analchem.2c01832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ribose plays an important role in the process of life. Excessive ribose in the human cerebrospinal fluid or urine can be used as an early diagnostic marker of leukoencephalopathy. Fluorinated phenylboronic acid combined with 19F NMR spectroscopy was a powerful method for molecular recognition. However, phenylboronic acid-based sensors for selective detection of ribose are rarely reported in the literature. In this study, the rapid and highly selective recognition of ribose was studied by 19F NMR and 2-fluorophenylboric acid. It was found that 2-fluoro-phenylboric acid was an appropriate 19F NMR-based sensor molecule for the determination of ribose under physiological conditions with high selectivity and robust anti-interference ability. When 2-fluorophenylboric acid was used for the detection of ribose in human urine without any sample pretreatment, a limit of detection of 78 μM was obtained at room temperature under given 19F NMR experimental conditions (400 MHz, 512 scans, ca. 12 min), which can well meet the needs of practical application.
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Affiliation(s)
- Xu-Dong Gao
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China.,College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yue Hu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China
| | - Wei-Feng Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China
| | - Xiao-Bo Zhao
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China
| | - Xin-Zhen Du
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yan-Ping Shi
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China
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6
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7
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Guo C, Fritz MP, Struppe J, Wegner S, Stringer J, Sergeyev IV, Quinn CM, Gronenborn AM, Polenova T. Fast 19F Magic Angle Spinning NMR Crystallography for Structural Characterization of Fluorine-Containing Pharmaceutical Compounds. Anal Chem 2021; 93:8210-8218. [PMID: 34080855 DOI: 10.1021/acs.analchem.1c00784] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Fluorine-containing compounds comprise 20 to 30 percent of all commercial drugs, and the proportion of fluorinated pharmaceuticals is rapidly growing. While magic angle spinning (MAS) NMR spectroscopy is a popular technique for analysis of solid pharmaceutical compounds, fluorine has been underutilized as a structural probe so far. Here, we report a fast (40-60 kHz) MAS 19F NMR approach for structural characterization of fluorine-containing crystalline pharmaceutical compounds at natural abundance, using the antimalarial fluorine-containing drug mefloquine as an example. We demonstrate the utility of 2D 19F-13C and 19F-19F dipolar-coupling-based correlation experiments for 19F and 13C resonance frequency assignment, which permit identification of crystallographically inequivalent sites. The efficiency of 19F-13C cross-polarization and the effect of 1H and 19F decoupling on spectral resolution and sensitivity were evaluated in a broad range of experimental conditions. We further demonstrate a protocol for measuring accurate interfluorine distances based on 1D DANTE-RFDR experiments combined with multispin numerical simulations.
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Affiliation(s)
- Changmiao Guo
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States.,Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, 1051 Biomedical Science Tower 3, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15261, United States
| | - Matthew P Fritz
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States.,Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, 1051 Biomedical Science Tower 3, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15261, United States
| | - Jochem Struppe
- Bruker Biospin Corporation, 15 Fortune Drive, Billerica, Massachusetts 01821, United States
| | | | - John Stringer
- PhoenixNMR, 510 E. 5th Street, Loveland, Colorado 80537, United States
| | - Ivan V Sergeyev
- Bruker Biospin Corporation, 15 Fortune Drive, Billerica, Massachusetts 01821, United States
| | - Caitlin M Quinn
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Angela M Gronenborn
- Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, 1051 Biomedical Science Tower 3, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15261, United States.,Department of Structural Biology, University of Pittsburgh School of Medicine, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15261, United States
| | - Tatyana Polenova
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States.,Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, 1051 Biomedical Science Tower 3, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15261, United States
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8
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Gao XD, Du XZ, Shi YP. A Bisboronic Acid Sensor for Ultra-High Selective Glucose Assay by 19F NMR Spectroscopy. Anal Chem 2021; 93:7220-7225. [PMID: 33939406 DOI: 10.1021/acs.analchem.1c00262] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Glucose is a significant analyte both in biology and biomedical science, it is of great importance to selectively detect glucose both in body fluids and complex mixture. In this study, a simple 19F NMR based sensor was synthesized easily, which exhibited a high selectivity and robust anti-interference ability toward glucose detection both in a mixture containing up to 10 saccharides and human urine samples without any pretreatment. Combined with this sensor system, glucose could be well detected in human urine samples and the limit of detection was 0.41 mM by using a 400 MHz NMR spectrometer with 128 scans (ca. 4 min). This method had a potential for specific detection of glucose in complex mixture and diagnosis of diabetes mellitus related diseases in body fluid.
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Affiliation(s)
- Xu-Dong Gao
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China.,CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China
| | - Xin-Zhen Du
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yan-Ping Shi
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, People's Republic of China
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9
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Dong C, Xu Z, Wen L, He S, Wu J, Deng QH, Zhao Y. Tailoring Sensors and Solvents for Optimal Analysis of Complex Mixtures Via Discriminative 19F NMR Chemosensing. Anal Chem 2021; 93:2968-2973. [PMID: 33503366 DOI: 10.1021/acs.analchem.0c04768] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Separation-free analytic techniques capable of providing precise and real-time component information are in high demand. 19F NMR-based chemosensing, where the reversible binding between analytes and a 19F-labeled sensor produces chromatogram-like output, has emerged as a valuable tool for the rapid analysis of complex mixtures. However, the potential overlap of the 19F NMR signals still limits the number of analytes that can be effectively differentiated. In this study, we systematically investigated the influence of the sensor structure and NMR solvents on the resolution of structurally similar analytes. The substituents adjacent and distal to the 19F labels are both important to the resolving ability of the 19F-labeled sensors. More pronounced separation between 19F NMR peaks was observed in nonpolar and aromatic solvents. By using a proper sensor and solvent combination, more than 20 biologically relevant analytes can be simultaneously identified.
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Affiliation(s)
- Chanjuan Dong
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China.,Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China
| | - Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China
| | - Lixian Wen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China
| | - Shengyuan He
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China
| | - Jian Wu
- Instrumental Analysis Center, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China
| | - Qing-Hai Deng
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China.,Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, P. R. China
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10
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Moseev TD, Varaksin MV, Gorlov DA, Charushin VN, Chupakhin ON. Recent advances in the functionalization of polyfluoro(aza)aromatics via C-C coupling strategies. Org Biomol Chem 2021; 19:4429-4459. [PMID: 33908555 DOI: 10.1039/d1ob00472g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyfluoro(aza)aromatic compounds are of interest in various fields of practical applications, such as medicinal and agrochemistry, materials science and advanced technologies. The C-C coupling reactions are known to be a promising synthetic tool to create challenging fluorinated molecules of diverse architectures. In this review, we have summarized the recent advances in the functionalization of polyfluoro(aza)aromatics via both transition metal-catalyzed and metal-free C-C coupling reactions for the period from 2006 to the beginning of 2021. Also, mechanistic features for chemical transformations of fluoroarene scaffolds and new opportunities for practical applications of the designed fluorinated molecules have been highlighted.
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Affiliation(s)
- Timofey D Moseev
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia.
| | - Mikhail V Varaksin
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia. and Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya Str., 620990 Ekaterinburg, Russia.
| | - Denis A Gorlov
- Moscow State University, 1 Leninskie Gory, 119991 Moscow, Russia
| | - Valery N Charushin
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia. and Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya Str., 620990 Ekaterinburg, Russia.
| | - Oleg N Chupakhin
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia. and Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya Str., 620990 Ekaterinburg, Russia.
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11
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Fedorenko M, Alesio J, Fedorenko A, Slitt A, Bothun GD. Dominant entropic binding of perfluoroalkyl substances (PFASs) to albumin protein revealed by 19F NMR. CHEMOSPHERE 2021; 263:128083. [PMID: 33297081 PMCID: PMC8479757 DOI: 10.1016/j.chemosphere.2020.128083] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 05/05/2023]
Abstract
Mechanistic insight into protein binding by poly- and perfluoroalkyl substances (PFASs) is critical to understanding how PFASs distribute and accumulate within the body and to developing predictive models within and across classes of PFASs. Fluorine nuclear magnetic resonance spectroscopy (19F NMR) has proven to be a powerful, yet underutilized tool to study PFAS binding; chemical shifts of each fluorine group reflect the local environment along the length of the PFAS molecule. Using bovine serum albumin (BSA), we report dissociation constants, Kd, for four common PFASs well below reported critical micelle concentrations (CMCs) - perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorohexanesulfonic acid (PFHxS), and perfluorooctanesulfonic acid (PFOS) - as a function of temperature in phosphate buffered saline. Kd values were determined based on the difluoroethyl group adjacent to the anionic headgroups and the terminal trifluoromethyl groups. Our results indicate that the hydrophobic tails exhibit greater binding affinity relative to the headgroup, and that the binding affinities are generally consistent with previous results showing that greater PFAS hydrophobicity leads to greater protein binding. However, the binding mechanism was dominated by entropic hydrophobic interactions attributed to desolvation of the PFAS tails within the hydrophobic cavities of the protein and on the surface of the protein. In addition, PFNA appears to form hemimicelles on the protein surfaces below reported CMC values. This work provides a renewed approach to utilizing 19F NMR for PFAS-protein binding studies and a new perspective on the role of solvent entropy.
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Affiliation(s)
- Michael Fedorenko
- Department of Chemical Engineering, University of Rhode Island, 2 East Alumni Ave, Kingston, RI, 02881, USA
| | - Jessica Alesio
- Department of Chemical Engineering, University of Rhode Island, 2 East Alumni Ave, Kingston, RI, 02881, USA
| | - Anatoliy Fedorenko
- Department of Chemical Engineering, University of Rhode Island, 2 East Alumni Ave, Kingston, RI, 02881, USA
| | - Angela Slitt
- Department of Biomedical & Pharmaceutical Sciences, University of Rhode Island, 7 Greenhouse Rd, Kingston, RI, 02881, USA
| | - Geoffrey D Bothun
- Department of Chemical Engineering, University of Rhode Island, 2 East Alumni Ave, Kingston, RI, 02881, USA.
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12
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Chai Z, Wu Q, Cheng K, Liu X, Jiang L, Liu M, Li C. Simultaneous detection of small molecule thiols with a simple 19F NMR platform. Chem Sci 2020; 12:1095-1100. [PMID: 34163876 PMCID: PMC8179020 DOI: 10.1039/d0sc04664g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Thiols play critical roles in regulating biological functions and have wide applications in pharmaceutical and biomedical industries. However, we still lack a general approach for the simultaneous detection of various thiols, especially in complex systems. Herein, we establish a 19F NMR platform where thiols are selectively fused into a novelly designed fluorinated receptor that has two sets of environmentally different 19F atoms with fast kinetics (k 2 = 0.73 mM-1 min-1), allowing us to generate unique two-dimensional codes for about 20 thiols. We demonstrate the feasibility of the approach by reliably quantifying thiol drug content in tablets, discriminating thiols in living cells, and for the first time monitoring the thiol related metabolism pathway at the atomic level. Moreover, the method can be easily extended to detect the activity of thiol related enzymes such as γ-glutamyl transpeptidase. We envision that the versatile platform will be a useful tool for detecting thiols and elucidating thiol-related processes in complex systems.
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Affiliation(s)
- Zhaofei Chai
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China
| | - Qiong Wu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China .,Graduate University of Chinese Academy of Sciences Beijing 100049 China
| | - Kai Cheng
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China
| | - Xiaoli Liu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China
| | - Ling Jiang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China .,Graduate University of Chinese Academy of Sciences Beijing 100049 China
| | - Maili Liu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China .,Graduate University of Chinese Academy of Sciences Beijing 100049 China
| | - Conggang Li
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences Wuhan 430071 China .,Graduate University of Chinese Academy of Sciences Beijing 100049 China
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13
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Sun M, Chen W, Zhang T, Liu Z, Wei J, Xi N. 19F NMR spectroscopy as a tool to detect rotations in fluorine substituted phenyl compounds. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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14
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Etkind SI, Vander Griend DA, Swager TM. Electroactive Anion Receptor with High Affinity for Arsenate. J Org Chem 2020; 85:10050-10061. [PMID: 32790360 DOI: 10.1021/acs.joc.0c01206] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, we present the synthesis and characterization of a macrocyclic polyamide cage that incorporates redox-active 1,4-dithiin units. UV/vis titration experiments with eight anions in acetonitrile revealed high affinity for H2AsO4- (log β2 = 10.4-0.4+0.4) and HCO3- (log β2 = 8.3-0.4+0.3) over other common anionic guests, such as Cl- (log K1:1 = 3.20-0.02+0.03), HSO4- (log K1:1 = 3.57-0.03+0.02), and H2PO4- (log K1:1 = 4.24-0.04+0.05), by the selective formation of HG2 complexes. The recognition of arsenate over phosphate is rare among both proteins and synthetic receptors, and though the origin of selectivity is not known, exploiting the difference in the binding stoichiometry represents an underexplored avenue toward developing receptors that can differentiate between the two anions. Additional analysis by 1H NMR in 1:3 CD2Cl2/MeCN-d3 found a strong dependence of anion binding stoichiometry with the solvent employed. Finally, titration experiments with cyclic voltammetry provided varying and complex responses for each anion tested, though reaction between the anion and receptors was observed in most cases. These results implicate 1,4-dithiins as interesting recognition moieties in the construction of supramolecular receptors.
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Affiliation(s)
- Samuel I Etkind
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Douglas A Vander Griend
- Department of Chemistry and Biochemistry, Calvin University, Grand Rapids, Michigan 49546, United States
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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15
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Sun X, Rosa-Gastaldo D, De Biasi F, Rastrelli F, Mancin F. 1 H NMR Chemosensing of Potassium Ions Enabled by Guest-Induced Selectivity Switch of a Gold Nanoparticle/Crown Ether Nanoreceptor. Chempluschem 2020; 84:1498-1502. [PMID: 31943937 DOI: 10.1002/cplu.201900028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/19/2019] [Indexed: 12/30/2022]
Abstract
A sensing protocol to detect potassium ions in water by 1 H NMR spectroscopy is described. The method exploits the K+ -modulated affinity of 18-crown-6 functionalized gold nanoparticles towards organic ions, combined with NOE magnetization transfer. Binding of K+ to the crown ether moieties switches the nanoreceptor preference (and its ability to transfer magnetization) from organic cations (tyramine) to organic anions (phloretate). In this way, a ratiometric NMR signal is produced with a detection limit of 0.6 mM. Detection can be performed in 20 min with standard instruments and with little interference from other alkali and alkaline earth metal ions present in the sample.
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Affiliation(s)
- Xiaohuan Sun
- Dipartimento di Scienze chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Daniele Rosa-Gastaldo
- Dipartimento di Scienze chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Federico De Biasi
- Dipartimento di Scienze chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Federico Rastrelli
- Dipartimento di Scienze chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Fabrizio Mancin
- Dipartimento di Scienze chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy
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16
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Sakamoto T, Qiu Z, Inagaki M, Fujimoto K. Simultaneous Amino Acid Analysis Based on 19F NMR Using a Modified OPA-Derivatization Method. Anal Chem 2019; 92:1669-1673. [PMID: 31886647 DOI: 10.1021/acs.analchem.9b05311] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To provide alternative methods of analyzing amino acids without liquid chromatography, 19F NMR-based simultaneous and individual detection methods for amino acids using o-phthalaldehyde (OPA)-based 19F labeling have been developed. Since the chemical shifts of almost all 19F-labeled amino acids differ from each other, and they can be discriminated on the 19F NMR spectrum, simultaneous detection of amino acids has been successfully demonstrated. The discrimination pattern of the peak identical to that of the 19F-labeled amino acids was largely dependent on the chemical structure of the thiols having 19F nuclei, strongly suggesting that there is a large potential for clearer discrimination of amino acids by optimizing the thiol structure and/or combined use of thiols.
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Affiliation(s)
- Takashi Sakamoto
- Faculty of Systems Engineering , Wakayama University , 930 Sakaedani , Wakayama 640-8510 , Japan
| | - Zhiyong Qiu
- Graduate School of Advanced Science and Technology , Japan Advanced Institute of Science and Technology , 1-1 Asahidai, Nomi , Ishikawa 923-1292 , Japan
| | - Miyu Inagaki
- Faculty of Systems Engineering , Wakayama University , 930 Sakaedani , Wakayama 640-8510 , Japan
| | - Kenzo Fujimoto
- Graduate School of Advanced Science and Technology , Japan Advanced Institute of Science and Technology , 1-1 Asahidai, Nomi , Ishikawa 923-1292 , Japan
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17
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Sudileti M, Nagaripati S, Gundluru M, Chintha V, Aita S, Wudayagiri R, Chamarthi N, Cirandur SR. rGO‐SO 3H Catalysed Green Synthesis of Fluoro‐Substituted Aminomethylene Bisphosphonates and their Anticancer, Molecular Docking studies. ChemistrySelect 2019. [DOI: 10.1002/slct.201903191] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Murali Sudileti
- Department of ChemistrySri Venkateswara University Tirupati 517 502, Andhra Pradesh India
| | | | - Mohan Gundluru
- Department of ChemistrySri Venkateswara University Tirupati 517 502, Andhra Pradesh India
- DST-PURSE CentreSri Venkateswara University Tirupati - 517 502, Andhra Pradesh India
| | - Venkataramaiah Chintha
- Department of ZoologySri Venkateswara University Tirupati - 517 502, Andhra Pradesh India
| | - Saikiran Aita
- Department of ChemistrySri Venkateswara University Tirupati 517 502, Andhra Pradesh India
| | - Rajendra Wudayagiri
- Department of ZoologySri Venkateswara University Tirupati - 517 502, Andhra Pradesh India
| | - Nagaraju Chamarthi
- Department of ChemistrySri Venkateswara University Tirupati 517 502, Andhra Pradesh India
| | - Suresh Reddy Cirandur
- Department of ChemistrySri Venkateswara University Tirupati 517 502, Andhra Pradesh India
- Institute of Food Security and Sustainable AgricultureUniversiti Malaysia Kelantan Kampus Jeli Locked Bag 100 17600 Jeli, Kelantan Malaysia
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18
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Chen Z, Yang M, Sun Z, Zhang X, Xu J, Bian G, Song L. Chiral Discrimination by a Binuclear Pd Complex Sensor Using 31P{ 1H} NMR. Anal Chem 2019; 91:14591-14596. [PMID: 31657901 DOI: 10.1021/acs.analchem.9b03661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An axially chiral binuclear μ-hydroxo Pd complex (BPHP) first served as an excellent chiral sensor for discriminating a variety of analytes including amino alcohol, amino amide, amino acid, mandelic acid, diol, diamine, and monoamine by 31P{1H} NMR. A detailed recognition mechanism was proposed based on the single crystal and mass spectrum of Pd-complexes. In general, BPHP sensor, through extracting the acidic hydrogen of an analyte by its Pd-OH group, forms stable diastereomeric complexes with two enantiomers of the analyte giving well distinguishable split 31P{1H} NMR signals for chiral discrimination.
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Affiliation(s)
- Zhongxiang Chen
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , 100049 , Beijing , China
| | - Mingxue Yang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , 100049 , Beijing , China
| | - Zhaofeng Sun
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , 100049 , Beijing , China
| | - Xuebo Zhang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,College of Material Science and Engineering , Fujian Normal University , Fuzhou 350007 , China
| | - Jing Xu
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,College of Material Science and Engineering , Fujian Normal University , Fuzhou 350007 , China
| | - Guangling Bian
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , 100049 , Beijing , China
| | - Ling Song
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , 100049 , Beijing , China
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19
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Meng H, Wen L, Xu Z, Li Y, Hao J, Zhao Y. Nonafluoro-tert-butoxylation of Diaryliodonium Salts. Org Lett 2019; 21:5206-5210. [DOI: 10.1021/acs.orglett.9b01813] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huan Meng
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Lixian Wen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Yipeng Li
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jian Hao
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
- Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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20
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Guo LE, Hong Y, Zhang SY, Zhang M, Yan XS, Cao JL, Li Z, James TD, Jiang YB. Proline-Based Boronic Acid Receptors for Chiral Recognition of Glucose. J Org Chem 2018; 83:15128-15135. [DOI: 10.1021/acs.joc.8b02425] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lin-E Guo
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Yuan Hong
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Shu-Ying Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Miao Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Xiao-Sheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Jin-Lian Cao
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Zhao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Tony D. James
- Department of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
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21
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Fluorinated Tetraphosphonate Cavitands. Molecules 2018; 23:molecules23102670. [PMID: 30336589 PMCID: PMC6222714 DOI: 10.3390/molecules23102670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/12/2018] [Accepted: 10/14/2018] [Indexed: 11/17/2022] Open
Abstract
Two synthetic protocols for the introduction of fluorine atoms into resorcinarene-based cavitands, at the lower and upper rim, respectively, are reported. Cavitand 1, bearing four fluorocarbon tails, and cavitand 2, which presents a fluorine atom on the para position of a diester phosphonate phenyl substituent, were synthesized and their complexation abilities toward the model guest sarcosine methyl ester hydrochloride were evaluated via NMR titration experiments. The effect of complexation on the 19F NMR resonance of the probe is evident only in the case of cavitand 2, where the inset of the cation-dipole and H-bonding interactions between the P=O bridges and the guest is reflected in a sizable downfield shift of the fluorine probe.
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22
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Affiliation(s)
- Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chao Liu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Shujuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Si Chen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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23
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Gabrielli L, Carril M, Padro D, Mancin F. Multimodal 19
F NMR Dopamine Detection and Imaging with a Nanoparticle-Based Displacement Assay. Chemistry 2018; 24:13036-13042. [DOI: 10.1002/chem.201802482] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/07/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Luca Gabrielli
- Dipartimento di Scienze Chimiche; Università di Padova; via Marzolo 1 35131 Padova Italy
| | - Monica Carril
- CIC biomaGUNE; Paseo Miramón 182 20014 San Sebastián Spain
- Ikerbasque, Basque Foundation for Science; 48011 Bilbao Spain
| | - Daniel Padro
- CIC biomaGUNE; Paseo Miramón 182 20014 San Sebastián Spain
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche; Università di Padova; via Marzolo 1 35131 Padova Italy
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24
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Gabrielli L, Rosa-Gastaldo D, Salvia MV, Springhetti S, Rastrelli F, Mancin F. Detection and identification of designer drugs by nanoparticle-based NMR chemosensing. Chem Sci 2018; 9:4777-4784. [PMID: 29910928 PMCID: PMC5975544 DOI: 10.1039/c8sc01283k] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 04/22/2018] [Indexed: 12/21/2022] Open
Abstract
Properly designed monolayer-protected nanoparticles (2 nm core diameter) can be used as nanoreceptors for selective detection and identification of phenethylamine derivatives (designer drugs) in water. The molecular recognition mechanism is driven by the combination of electrostatic and hydrophobic interactions within the coating monolayer. Each nanoparticle can bind up to 30-40 analyte molecules. The affinity constants range from 105 to 106 M-1 and are modulated by the hydrophobicity of the aromatic moiety in the substrate. Detection of drug candidates (such as amphetamines and methamphetamines) is performed by using magnetization (NOE) or saturation (STD) transfer NMR experiments. In this way, the NMR spectrum of the drug is isolated from that of the mixture, allowing broad-class multianalyte detection and even identification of unknowns. The introduction of a dimethylsilane moiety in the coating monolayer allows performing STD experiments in complex mixtures. In this way, a detection limit of 30 μM is reached with standard instruments.
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Affiliation(s)
- Luca Gabrielli
- Dipartimento di Scienze Chimiche , Università di Padova , Via Marzolo 1 , 35131 Padova , Italy .
| | - Daniele Rosa-Gastaldo
- Dipartimento di Scienze Chimiche , Università di Padova , Via Marzolo 1 , 35131 Padova , Italy .
| | - Marie-Virginie Salvia
- Dipartimento di Scienze Chimiche , Università di Padova , Via Marzolo 1 , 35131 Padova , Italy .
| | - Sara Springhetti
- Dipartimento di Scienze Chimiche , Università di Padova , Via Marzolo 1 , 35131 Padova , Italy .
| | - Federico Rastrelli
- Dipartimento di Scienze Chimiche , Università di Padova , Via Marzolo 1 , 35131 Padova , Italy .
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche , Università di Padova , Via Marzolo 1 , 35131 Padova , Italy .
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25
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Swager TM. Sensor Technologies Empowered by Materials and Molecular Innovations. Angew Chem Int Ed Engl 2018; 57:4248-4257. [PMID: 29469191 DOI: 10.1002/anie.201711611] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Indexed: 11/05/2022]
Abstract
Functional synthetic designer materials can impact many advanced technologies, and the chemical sensor area is intimately reliant on these new chemical innovations. The transduction of chemical and biological signals is necessary for low cost omnipresent chemical sensing and will be realized by chemical designs of new transduction materials. We are poised for many new innovations to empower new generations of sensor technologies. Materials innovations promise to expand the capabilities of present hardware, drive down the cost, and ensure broad implementation of these methods.
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Affiliation(s)
- Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, USA
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26
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27
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Ruan T, Jiang G. Analytical methodology for identification of novel per- and polyfluoroalkyl substances in the environment. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.024] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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28
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Zhang W, Gao N, Cui J, Wang C, Wang S, Zhang G, Dong X, Zhang D, Li G. AIE-doped poly(ionic liquid) photonic spheres: a single sphere-based customizable sensing platform for the discrimination of multi-analytes. Chem Sci 2017; 8:6281-6289. [PMID: 28989662 PMCID: PMC5628402 DOI: 10.1039/c7sc02409f] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 06/29/2017] [Indexed: 12/21/2022] Open
Abstract
By simultaneously exploiting the unique properties of ionic liquids and aggregation-induced emission (AIE) luminogens, as well as photonic structures, a novel customizable sensing system for multi-analytes was developed based on a single AIE-doped poly(ionic liquid) photonic sphere. It was found that due to the extraordinary multiple intermolecular interactions involved in the ionic liquid units, one single sphere could differentially interact with broader classes of analytes, thus generating response patterns with remarkable diversity. Moreover, the optical properties of both the AIE luminogen and photonic structure integrated in the poly(ionic liquid) sphere provide multidimensional signal channels for transducing the involved recognition process in a complementary manner and the acquisition of abundant and sufficient sensing information could be easily achieved on only one sphere sensor element. More importantly, the sensing performance of our poly(ionic liquid) photonic sphere is designable and customizable through a simple ion-exchange reaction and target-oriented multi-analyte sensing can be conveniently realized using a selective receptor species, such as counterions, showing great flexibility and extendibility. The power of our single sphere-based customizable sensing system was exemplified by the successful on-demand detection and discrimination of four multi-analyte challenge systems: all 20 natural amino acids, nine important phosphate derivatives, ten metal ions and three pairs of enantiomers. To further demonstrate the potential of our spheres for real-life application, 20 amino acids in human urine and their 26 unprecedented complex mixtures were also discriminated between by the single sphere-based array.
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Affiliation(s)
- Wanlin Zhang
- Department of Chemistry , Key Lab of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , P. R. China .
| | - Ning Gao
- Department of Chemistry , Key Lab of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , P. R. China .
| | - Jiecheng Cui
- Department of Chemistry , Key Lab of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , P. R. China .
| | - Chen Wang
- Department of Chemistry , Key Lab of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , P. R. China .
| | - Shiqiang Wang
- Department of Chemistry , Key Lab of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , P. R. China .
| | - Guanxin Zhang
- Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Xiaobiao Dong
- Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Deqing Zhang
- Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Guangtao Li
- Department of Chemistry , Key Lab of Organic Optoelectronics and Molecular Engineering , Tsinghua University , Beijing 100084 , P. R. China .
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29
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Axthelm J, Askes SHC, Elstner M, G UR, Görls H, Bellstedt P, Schiller A. Fluorinated Boronic Acid-Appended Pyridinium Salts and 19F NMR Spectroscopy for Diol Sensing. J Am Chem Soc 2017; 139:11413-11420. [PMID: 28719195 DOI: 10.1021/jacs.7b01167] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The identification and discrimination of diols is of fundamental importance in medical diagnostics, such as measuring the contents of glucose in the urine of diabetes patients. Diol sensors are often based on fluorophore-appended boronic acids, but these severely lack discriminatory power and their response is one-dimensional. As an alternative strategy, we present the use of fluorinated boronic acid-appended pyridinium salts in combination with 19F NMR spectroscopy. A pool of 59 (bio)analytes was screened, containing monosaccharides, phosphorylated and N-acetylated sugars, polyols, carboxylic acids, nucleotides, and amines. The majority of analytes could be clearly detected and discriminated. In addition, glucose and fructose could be distinguished up to 1:9 molar ratio in mixtures. Crucially, the receptors feature high sensitivity and selectivity and are water-soluble, and their 19F-NMR analyte fingerprint is pH-robust, thereby making them particularly well-suited for medical application. Finally, to demonstrate this applicability, glucose could be detected in synthetic urine samples down to 1 mM using merely a 188 MHz NMR spectrometer.
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Affiliation(s)
- Jörg Axthelm
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
| | - Sven H C Askes
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
| | - Martin Elstner
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
| | - Upendar Reddy G
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
| | - Peter Bellstedt
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
| | - Alexander Schiller
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena , Humboldtstrasse 8, D-07743 Jena, Germany
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30
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Brenner W, Ronson TK, Nitschke JR. Separation and Selective Formation of Fullerene Adducts within an MII8L6 Cage. J Am Chem Soc 2016; 139:75-78. [DOI: 10.1021/jacs.6b11523] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wolfgang Brenner
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Tanya K. Ronson
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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31
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Diez-Castellnou M, Salvia MV, Springhetti S, Rastrelli F, Mancin F. Nanoparticle-Assisted Affinity NMR Spectroscopy: High Sensitivity Detection and Identification of Organic Molecules. Chemistry 2016; 22:16957-16963. [DOI: 10.1002/chem.201603578] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Marta Diez-Castellnou
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
| | - Marie-Virginie Salvia
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
- Laboratoire d'Excellence “CORAIL”; Université de Perpignan; 58 Avenue Paul Alduy 66860 Perpignan Cedex France
| | - Sara Springhetti
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
| | - Federico Rastrelli
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
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32
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Zhao Y, Chen L, Swager TM. Simultaneous Identification of Neutral and Anionic Species in Complex Mixtures without Separation. Angew Chem Int Ed Engl 2016; 55:917-21. [PMID: 26756442 PMCID: PMC4905770 DOI: 10.1002/anie.201508085] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Indexed: 01/15/2023]
Abstract
A chemosensory system is reported that operates without the need for separation techniques and is capable of identifying anions and structurally similar bioactive molecules. In this strategy, the coordination of analytes to a metal complex with an open binding cleft generates "static structures" on the NMR timescale. Unique signals are created by strategically placing fluorine atoms in close proximity to bound analytes so that small structural differences induce distinct (19)F NMR shifts that can be used to identify each analyte. The utility of this method is illustrated by quantifying caffeine levels in coffee, by identifying ingredients in tea and energy drinks, and by discriminating between multiple biogenic amines with remote structural differences six carbon atoms away from the binding site. We further demonstrate the simultaneous identification of multiple neutral and anionic species in a complex mixture.
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Affiliation(s)
- Yanchuan Zhao
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Lily Chen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA.
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33
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Sakamoto T, Hasegawa D, Fujimoto K. Simultaneous detection of single-nucleotide polymorphisms in a DNA bulge structure using a fluorine-modified bisbenzimide derivative. Analyst 2016; 141:1214-7. [DOI: 10.1039/c5an02389k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Single-nucleotide polymorphisms on the bulged-out nucleobase in dsDNA can be detected simultaneously in a 19F NMR spectrum using 3,5-bis(trifluoromethyl)benzene-modified bisbenzimide H33258.
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Affiliation(s)
- Takashi Sakamoto
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - Daisaku Hasegawa
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - Kenzo Fujimoto
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
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34
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DiScenza DJ, Levine M. Selective detection of non-aromatic pesticides via cyclodextrin-promoted fluorescence modulation. NEW J CHEM 2016. [DOI: 10.1039/c5nj02357b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The introduction of pesticides to a cyclodextrin-fluorophore solution leads to highly specific fluorescence changes that are used for pesticide detection.
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Affiliation(s)
| | - Mindy Levine
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
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35
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Axthelm J, Görls H, Schubert US, Schiller A. Fluorinated Boronic Acid-Appended Bipyridinium Salts for Diol Recognition and Discrimination via 19F NMR Barcodes. J Am Chem Soc 2015; 137:15402-5. [DOI: 10.1021/jacs.5b10934] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jörg Axthelm
- Institute
for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstrasse 8, D-07743 Jena, Germany
| | - Helmar Görls
- Institute
for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstrasse 8, D-07743 Jena, Germany
| | - Ulrich S. Schubert
- Institute
for Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, D-07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany
| | - Alexander Schiller
- Institute
for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstrasse 8, D-07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany
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36
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Kasireddy C, Bann JG, Mitchell-Koch KR. Demystifying fluorine chemical shifts: electronic structure calculations address origins of seemingly anomalous (19)F-NMR spectra of fluorohistidine isomers and analogues. Phys Chem Chem Phys 2015; 17:30606-12. [PMID: 26524669 PMCID: PMC4643390 DOI: 10.1039/c5cp05502d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Fluorine NMR spectroscopy is a powerful tool for studying biomolecular structure, dynamics, and ligand binding, yet the origins of (19)F chemical shifts are not well understood. Herein, we use electronic structure calculations to describe the changes in (19)F chemical shifts of 2F- and 4F-histidine/(5-methyl)-imidazole upon acid titration. While the protonation of the 2F species results in a deshielded chemical shift, protonation of the 4F isomer results in an opposite, shielded chemical shift. The deshielding of 2F-histidine/(5-methyl)-imidazole upon protonation can be rationalized by concomitant decreases in charge density on fluorine and a reduced dipole moment. These correlations do not hold for 4F-histidine/(5-methyl)-imidazole, however. Molecular orbital calculations reveal that for the 4F species, there are no lone pair electrons on the fluorine until protonation. Analysis of a series of 4F-imidazole analogues, all with delocalized fluorine electron density, indicates that the deshielding of (19)F chemical shifts through substituent effects correlates with increased C-F bond polarity. In summary, the delocalization of fluorine electrons in the neutral 4F species, with gain of a lone pair upon protonation may help explain the difficulty in developing a predictive framework for fluorine chemical shifts. Ideas debated by chemists over 40 years ago, regarding fluorine's complex electronic effects, are shown to have relevance for understanding and predicting fluorine NMR spectra.
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Affiliation(s)
- Chandana Kasireddy
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, USA.
| | - James G Bann
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, USA.
| | - Katie R Mitchell-Koch
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, USA.
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37
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Zhao Y, Chen L, Swager TM. Simultaneous Identification of Neutral and Anionic Species in Complex Mixtures without Separation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508085] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yanchuan Zhao
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Lily Chen
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Timothy M. Swager
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave Cambridge MA 02139 USA
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38
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Lehnherr D, Alzola JM, Lobkovsky EB, Dichtel WR. Regioselective Synthesis of Polyheterohalogenated Naphthalenes via the Benzannulation of Haloalkynes. Chemistry 2015; 21:18122-7. [DOI: 10.1002/chem.201503418] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Indexed: 11/09/2022]
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39
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Salvia MV, Salassa G, Rastrelli F, Mancin F. Turning Supramolecular Receptors into Chemosensors by Nanoparticle-Assisted “NMR Chemosensing”. J Am Chem Soc 2015; 137:11399-406. [DOI: 10.1021/jacs.5b06300] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marie-Virgine Salvia
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| | - Giovanni Salassa
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| | - Federico Rastrelli
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, Italy
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40
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Zhao Y, Swager TM. Functionalized Metalated Cavitands via Imidation and Late-Stage Elaboration. European J Org Chem 2015; 2015:4593-4597. [DOI: 10.1002/ejoc.201500714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Serio N, Moyano DF, Rotello VM, Levine M. Array-based detection of persistent organic pollutants via cyclodextrin promoted energy transfer. Chem Commun (Camb) 2015; 51:11615-8. [PMID: 26096542 DOI: 10.1039/c5cc04153h] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein the selective array-based detection of 30 persistent organic pollutants via cyclodextrin-promoted energy transfer. The use of three fluorophores enabled the development of an array that classified 30 analytes with 100% accuracy and identified unknown analytes with 96% accuracy, as well as identifying 92% of analytes in urine.
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Affiliation(s)
- Nicole Serio
- Department of Chemistry, University of Rhode Island, 51 Lower College Road, Kingston, RI 02881, USA.
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42
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Alkorta I, Elguero J, Pérez-Torralba M, López C, Claramunt RM. A theoretical and experimental study of the NMR spectra of 4,5,6,7-tetrafluorobenzazoles with special stress on PCM calculations of chemical shifts. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2015; 53:353-362. [PMID: 25615404 DOI: 10.1002/mrc.4203] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/04/2014] [Indexed: 06/04/2023]
Abstract
The chemical shifts and several (19)F-(19)F, (13)C-(19) F and (1)H-(19)F spin-spin coupling constants (SSCSs) of eight 4,5,6,7-tetraflurobenzazoles (three benzimidazoles, three benzimidazolinones and two indazoles) have been determined. The chemical shifts were discussed using gauge including atomic orbital-density functional theory calculations taking into account solvent effects (polarizable continuum model) and, for the solid state, hydrogen bonds (clusters up to three molecules).
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Affiliation(s)
- Ibon Alkorta
- Instituto de Química Médica, CSIC, Juan de la Cierva 3, E-28006, Madrid, Spain
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43
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Abstract
The rapid detection and differentiation of chiral compounds is important to synthetic, medicinal, and biological chemistry. Palladium complexes with chiral pincer ligands are demonstrated to have utility in determining the chirality of various amines. The binding of enantiomeric amines induces distinct (19)F NMR shifts of the fluorine atoms appended on the ligand that defines a chiral environment around palladium. It is further demonstrated that this method has the ability to evaluate the enantiomeric composition and discriminate between enantiomers with chiral centers several carbons away from the binding site. The wide detection window provided by optimized chiral chemosensors allows the simultaneous identification of as many as 12 chiral amines. The extraordinary discriminating ability of this method is demonstrated by the resolution of chiral aliphatic amines that are difficult to separate using chiral chromatography.
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Affiliation(s)
- Yanchuan Zhao
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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44
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Salvia MV, Ramadori F, Springhetti S, Diez-Castellnou M, Perrone B, Rastrelli F, Mancin F. Nanoparticle-Assisted NMR Detection of Organic Anions: From Chemosensing to Chromatography. J Am Chem Soc 2015; 137:886-92. [DOI: 10.1021/ja511205e] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marie-Virginie Salvia
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
| | - Federico Ramadori
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
| | - Sara Springhetti
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
| | - Marta Diez-Castellnou
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
| | - Barbara Perrone
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
| | - Federico Rastrelli
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
| | - Fabrizio Mancin
- Università di Padova, Dipartimento di Scienze Chimiche, via Marzolo 1, Padova, Italy
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45
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Sakamoto T, Hasegawa D, Fujimoto K. Fluorine-modified bisbenzimide derivative as a molecular probe for bimodal and simultaneous detection of DNAs by 19F NMR and fluorescence. Chem Commun (Camb) 2015; 51:8749-52. [DOI: 10.1039/c5cc01995h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A molecular probe that can detect DNA with 19F NMR/fluorescence bimodal manner was developed. The probe can discriminate and detect simultaneously DNA sequences around AATT binding site by 19F NMR.
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Affiliation(s)
- Takashi Sakamoto
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - Daisaku Hasegawa
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - Kenzo Fujimoto
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
- Research Center for Bio-Architecture
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