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Hashikawa Y, Fujikawa N, Murata Y. π-Extended Fullerenes with a Reactant Inside. J Am Chem Soc 2022; 144:23292-23296. [PMID: 36534086 DOI: 10.1021/jacs.2c12259] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Fullerene-graphene hybrids potentially exhibit unprecedented properties owing to interactive communication between the two units through a linkage. However, most of their discrete molecular structures have been still undisclosed thus far. With the recent rise in the awareness of facile access to molecular nanocarbon hybrids, we showcase novel π-extended fullerenes with a fused pyrazine or imidazole. Owing to the effective planar-curved π-conjugation, their absorption coefficients significantly increased in the visible region. Curiously enough, during the formation of π-extended fullerenes, an in situ generated NH3 molecule was spontaneously encapsulated inside the fullerene cavity. The NH3 molecule then underwent a timed orifice-expansion triggered by its sustained release. This is the first demonstration that fullerene captures a reactant inside, suggesting their potential usage for a sustained dosing and/or material delivery toward postfunctionalization of fullerene-graphene hybrids.
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Affiliation(s)
- Yoshifumi Hashikawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Nana Fujikawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yasujiro Murata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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2
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Kondo Y, Nonaka H, Takakusagi Y, Sando S. Entwicklung molekularer Sonden für die hyperpolarisierte NMR‐Bildgebung im biologischen Bereich. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.201915718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yohei Kondo
- Department of Chemistry and Biotechnology Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Hiroshi Nonaka
- Department of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto University Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoichi Takakusagi
- Institute of Quantum Life Science National Institutes for Quantum and Radiological Science and Technology 4-9-1 Anagawa, Inage Chiba-city 263-8555 Japan
- National Institute of Radiological Sciences National Institutes for Quantum and Radiological Science and Technology 4-9-1 Anagawa, Inage Chiba-city 263-8555 Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Department of Bioengineering Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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Kondo Y, Nonaka H, Takakusagi Y, Sando S. Design of Nuclear Magnetic Resonance Molecular Probes for Hyperpolarized Bioimaging. Angew Chem Int Ed Engl 2021; 60:14779-14799. [PMID: 32372551 DOI: 10.1002/anie.201915718] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Indexed: 12/13/2022]
Abstract
Nuclear hyperpolarization has emerged as a method to dramatically enhance the sensitivity of NMR spectroscopy. By application of this powerful tool, small molecules with stable isotopes have been used for highly sensitive biomedical molecular imaging. The recent development of molecular probes for hyperpolarized in vivo analysis has demonstrated the ability of this technique to provide unique metabolic and physiological information. This review presents a brief introduction of hyperpolarization technology, approaches to the rational design of molecular probes for hyperpolarized analysis, and examples of molecules that have met with success in vitro or in vivo.
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Affiliation(s)
- Yohei Kondo
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Hiroshi Nonaka
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto University Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoichi Takakusagi
- Institute of Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba-city, 263-8555, Japan.,National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba-city, 263-8555, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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Kharchenko V, Nowakowski M, Jaremko M, Ejchart A, Jaremko Ł. Dynamic 15N{ 1H} NOE measurements: a tool for studying protein dynamics. JOURNAL OF BIOMOLECULAR NMR 2020; 74:707-716. [PMID: 32918646 PMCID: PMC7701129 DOI: 10.1007/s10858-020-00346-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/12/2020] [Indexed: 06/11/2023]
Abstract
Intramolecular motions in proteins are one of the important factors that determine their biological activity and interactions with molecules of biological importance. Magnetic relaxation of 15N amide nuclei allows one to monitor motions of protein backbone over a wide range of time scales. 15N{1H} nuclear Overhauser effect is essential for the identification of fast backbone motions in proteins. Therefore, exact measurements of NOE values and their accuracies are critical for determining the picosecond time scale of protein backbone. Measurement of dynamic NOE allows for the determination of NOE values and their probable errors defined by any sound criterion of nonlinear regression methods. The dynamic NOE measurements can be readily applied for non-deuterated or deuterated proteins in both HSQC and TROSY-type experiments. Comparison of the dynamic NOE method with commonly implied steady-state NOE is presented in measurements performed at three magnetic field strengths. It is also shown that improperly set NOE measurement cannot be restored with correction factors reported in the literature.
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Affiliation(s)
- Vladlena Kharchenko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Michal Nowakowski
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Andrzej Ejchart
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106, Warsaw, Poland
| | - Łukasz Jaremko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
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5
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Design of a 15N Molecular Unit to Achieve Long Retention of Hyperpolarized Spin State. Sci Rep 2017; 7:40104. [PMID: 28067292 PMCID: PMC5220364 DOI: 10.1038/srep40104] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 11/30/2016] [Indexed: 11/25/2022] Open
Abstract
Nuclear hyperpolarization is a phenomenon that can be used to improve the sensitivity of magnetic resonance molecular sensors. However, such sensors typically suffer from short hyperpolarization lifetime. Herein we report that [15N, D14]trimethylphenylammonium (TMPA) has a remarkably long spin–lattice relaxation time (1128 s, 14.1 T, 30 °C, D2O) on its 15N nuclei and achieves a long retention of the hyperpolarized state. [15N, D14]TMPA-based hyperpolarized sensor for carboxylesterase allowed the highly sensitive analysis of enzymatic reaction by 15N NMR for over 40 min in phophate-buffered saline (H2O, pH 7.4, 37 °C).
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Wagner G, Horton PN, Coles SJ. Mononuclear Transition Metal Complexes of 7-Nitro-1,3,5-Triazaadamantane. ChemistrySelect 2016. [DOI: 10.1002/slct.201600502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Gabriele Wagner
- Department of Natural Sciences; University of Chester; Thornton Science Park; Pool Lane, Ince Chester CH2 4NU United Kingdom
| | - Peter N. Horton
- National Crystallography Service, School of Chemistry; University of Southampton; Southampton SO17 1BJ United Kingdom
| | - Simon J. Coles
- National Crystallography Service, School of Chemistry; University of Southampton; Southampton SO17 1BJ United Kingdom
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A platform for designing hyperpolarized magnetic resonance chemical probes. Nat Commun 2014; 4:2411. [PMID: 24022444 PMCID: PMC3778512 DOI: 10.1038/ncomms3411] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 08/07/2013] [Indexed: 01/19/2023] Open
Abstract
Hyperpolarization is a highly promising technique for improving the sensitivity of magnetic resonance chemical probes. Here we report [15N, D9]trimethylphenylammonium as a platform for designing a variety of hyperpolarized magnetic resonance chemical probes. The platform structure shows a remarkably long 15N spin–lattice relaxation value (816 s, 14.1 T) for retaining its hyperpolarized spin state. The extended lifetime enables the detection of the hyperpolarized 15N signal of the platform for several tens of minutes and thus overcomes the intrinsic short analysis time of hyperpolarized probes. Versatility of the platform is demonstrated by applying it to three types of hyperpolarized chemical probes: one each for sensing calcium ions, reactive oxygen species (hydrogen peroxide) and enzyme activity (carboxyl esterase). All of the designed probes achieve high sensitivity with rapid reactions and chemical shift changes, which are sufficient to allow sensitive and real-time monitoring of target molecules by 15N magnetic resonance. Hyperpolarization of chemical nuclei is known to greatly increase sensitivity to characterization by magnetic resonance imaging. Here a new platform that allows for the design of a number of hyperpolarized probes for chemical sensing applications is demonstrated.
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Jie Y, Livant P, Li H, Yang M, Zhu W, Cammarata V, Almond P, Sullens T, Qin Y, Bakker E. An Acyclic Trialkylamine Virtually Planar at Nitrogen. Some Chemical Consequences of Nitrogen Planarity. J Org Chem 2010; 75:4472-9. [DOI: 10.1021/jo100628v] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanping Jie
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Peter Livant
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Hui Li
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Minmin Yang
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Wei Zhu
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Vince Cammarata
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Philip Almond
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Tyler Sullens
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Yu Qin
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - Eric Bakker
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
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von Philipsborn W, Müller R. 15N-NMR-Spektroskopie — neue Methoden und ihre Anwendung. Angew Chem Int Ed Engl 1986. [DOI: 10.1002/ange.19860980504] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Anderegg G, Popov K, Pregosin PS. Nitrogen-NMR Studies on the Protonation of 2-(Aminomethyl)pyridine and Tris[(2-pyridyl)methyl]amine. Helv Chim Acta 1986. [DOI: 10.1002/hlca.19860690210] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Jakobsen HJ, Yang PI, Brey WS. Natural abundance proton-coupled15N NMR spectra of pyridines observed from proton polarization transfer experiments. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/mrc.1270170413] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Sørensen OW, Scheibye S, Lawesson SO, Jakobsen HJ. Proton polarization transfer in natural abundance15N NMR studies ofE- andZ-isomers ofN-alkylformamides. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/mrc.1270160416] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Motschi H, Pregosin PS, Venanzi LM. 15N-NMR. and31P-NMR. Studies of palladium and platinum complexes. Helv Chim Acta 1979. [DOI: 10.1002/hlca.19790620304] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Kowalewski J, Erigsson A, Vestin R. Determination of NOE factors using the dynamic overhauser enhancement technique combined with a nonlinear least-squares-fitting procedure. ACTA ACUST UNITED AC 1978. [DOI: 10.1016/0022-2364(78)90179-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Levy GC, Godwin AD, Hewitt JM, Sutcliffe C. Natural abundance 15N and 13C spectroscopy. Aminobenzoic acids, substituted anilines, and related compounds. ACTA ACUST UNITED AC 1978. [DOI: 10.1016/0022-2364(78)90013-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Berger S. Nuclear Magnetic Relaxation: Recent Problems and Progress. ADVANCES IN PHYSICAL ORGANIC CHEMISTRY 1978. [DOI: 10.1016/s0065-3160(08)60089-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Brondeau J, Canet D. Longitudinal magnetic relaxation of13C (or15N) interacting with a strongly irradiated proton system. J Chem Phys 1977. [DOI: 10.1063/1.435304] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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