Zobrazeno 1 - 10
of 239
pro vyhledávání: '"Eduard Y Chekmenev"'
Autor:
Obaid Mohiuddin, Henri de Maissin, Andrey N. Pravdivtsev, Arne Brahms, Marvin Herzog, Leif Schröder, Eduard Y. Chekmenev, Rainer Herges, Jan-Bernd Hövener, Maxim Zaitsev, Dominik von Elverfeldt, Andreas B. Schmidt
Publikováno v:
Communications Chemistry, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Hyperpolarized 13C MRI visualizes real-time metabolic processes in vivo. In this study, we achieved high 13C polarization in situ in the bore of an MRI system for precursor molecules of most widely employed hyperpolarized agents: [1-13C]acet
Externí odkaz:
https://doaj.org/article/9244e224583f4d3ba18233861d2e4da8
Autor:
Ivan A. Trofimov, Oleg G. Salnikov, Andrey N. Pravdivtsev, Henri de Maissin, Anna P. Yi, Eduard Y. Chekmenev, Jan-Bernd Hövener, Andreas B. Schmidt, Igor V. Koptyug
Publikováno v:
Communications Chemistry, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Radio Amplification by Stimulated Emission of Radiation (RASER) is a phenomenon observed during nuclear magnetic resonance (NMR) experiments with strongly negatively polarized systems. This phenomenon may be utilized for the production of ve
Externí odkaz:
https://doaj.org/article/d9e9bd5c2d03452e808d46bfae18c10d
Autor:
Nuwandi M. Ariyasingha, Anna Samoilenko, Md Raduanul H. Chowdhury, Shiraz Nantogma, Clementinah Oladun, Jonathan R. Birchall, Tarek Bawardi, Oleg G. Salnikov, Larisa M. Kovtunova, Valerii I. Bukhtiyarov, Zhongjie Shi, Kehuan Luo, Sidhartha Tan, Igor V. Koptyug, Boyd M. Goodson, Eduard Y. Chekmenev
Publikováno v:
Chemical & Biomedical Imaging, Vol 2, Iss 10, Pp 698-710 (2024)
Externí odkaz:
https://doaj.org/article/364fef689dfb45dba6230bb4a8c5f644
Autor:
Dudari B. Burueva, Sergey V. Sviyazov, Nikita V. Chukanov, Nazim R. Mustafin, Oleg G. Salnikov, Eduard Y. Chekmenev, Kirill V. Kovtunov, Igor V. Koptyug
Publikováno v:
Journal of Magnetic Resonance Open, Vol 21, Iss , Pp 100176- (2024)
Sodium [13C]formate was successfully hyperpolarized using parahydrogen-induced polarization by means of side-arm hydrogenation (PHIP-SAH). Allyl [13C]formate was hyperpolarized using homogeneous hydrogenation of the corresponding unsaturated precurso
Externí odkaz:
https://doaj.org/article/021fbb10535242b6839a2fd9809160c4
Autor:
Nuwandi M. Ariyasingha, Shiraz Nantogma, Anna Samoilenko, Oleg G. Salnikov, Nikita V. Chukanov, Larisa M. Kovtunova, Igor V. Koptyug, Eduard Y. Chekmenev
Publikováno v:
Journal of Magnetic Resonance Open, Vol 16, Iss , Pp 100135- (2023)
Parahydrogen-Induced Polarization (PHIP) is NMR hyperpolarization technique that has matured from fundamental science to a biomedical tool for production of hyperpolarized MRI contrast agents. The spin order of nascent parahydrogen-derived protons ca
Externí odkaz:
https://doaj.org/article/d0225340981e44abaa99423182002616
Autor:
Keilian MacCulloch, Austin Browning, David O. Guarin Bedoya, Stephen J. McBride, Mustapha B. Abdulmojeed, Carlos Dedesma, Boyd M. Goodson, Matthew S. Rosen, Eduard Y. Chekmenev, Yi-Fen Yen, Patrick TomHon, Thomas Theis
Publikováno v:
Journal of Magnetic Resonance Open, Vol 16, Iss , Pp 100129- (2023)
Hyperpolarization chemistry based on reversible exchange of parahydrogen, also known as Signal Amplification By Reversible Exchange (SABRE), is a particularly simple approach to attain high levels of nuclear spin hyperpolarization, which can enhance
Externí odkaz:
https://doaj.org/article/c47e1674d85f49079798069b7a059d56
Autor:
Alexandra Svyatova, Vitaly P. Kozinenko, Nikita V. Chukanov, Dudari B. Burueva, Eduard Y. Chekmenev, Yu-Wen Chen, Dennis W. Hwang, Kirill V. Kovtunov, Igor V. Koptyug
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract Parahydrogen-induced polarization of 13C nuclei by side-arm hydrogenation (PHIP-SAH) for [1-13C]acetate and [1-13C]pyruvate esters with application of PH-INEPT-type pulse sequences for 1H to 13C polarization transfer is reported, and its eff
Externí odkaz:
https://doaj.org/article/2fcdf7748c404a658d390d7cb3f25b84
Autor:
Isaiah Adelabu, Md Raduanul H. Chowdhury, Shiraz Nantogma, Clementinah Oladun, Firoz Ahmed, Lukas Stilgenbauer, Marianna Sadagurski, Thomas Theis, Boyd M. Goodson, Eduard Y. Chekmenev
Publikováno v:
Metabolites, Vol 13, Iss 2, p 200 (2023)
Efficient 13C hyperpolarization of ketoisocaproate is demonstrated in natural isotopic abundance and [1-13C]enriched forms via SABRE-SHEATH (Signal Amplification By Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei). Parahydrog
Externí odkaz:
https://doaj.org/article/75c05cbff4f64b23919aced13d59327c
Autor:
Bryce E. Kidd, Max E. Gemeinhardt, Jamil A. Mashni, Jonathan L. Gesiorski, Liana B. Bales, Miranda N. Limbach, Roman V. Shchepin, Kirill V. Kovtunov, Igor V. Koptyug, Eduard Y. Chekmenev, Boyd M. Goodson
Publikováno v:
Molecules, Vol 28, Iss 3, p 1198 (2023)
The present work investigates the potential for enhancing the NMR signals of DNA nucleobases by parahydrogen-based hyperpolarization. Signal amplification by reversible exchange (SABRE) and SABRE in Shield Enables Alignment Transfer to Heteronuclei (
Externí odkaz:
https://doaj.org/article/1e13714edefe44779f75301d1727ca52
Autor:
Jacob R. Lindale, Shannon L. Eriksson, Christian P. N. Tanner, Zijian Zhou, Johannes F. P. Colell, Guannan Zhang, Junu Bae, Eduard Y. Chekmenev, Thomas Theis, Warren S. Warren
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
There is increasing effort to improve the signal sensitivity and explore the hyperpolarization dynamics. Here the authors demonstrate the parahydrogen spin transfer dynamics in compounds containing 15N using SABRE hyperpolarization technique with dif
Externí odkaz:
https://doaj.org/article/e6c7d422662f49dab157d70e448cf431