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Works (15)
Updated: August 22nd, 2024 05:00
2024 journal article
High-frequency high-power DNP/EPR spectrometer operating at 7 T magnetic field
JOURNAL OF MAGNETIC RESONANCE, 362.
author keywords: Dynamic nuclear polarization; Electron spin echoes; Extended interaction klystron; Quasioptics; Solid-state mm-wave devices
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 19, 2024
2023 journal article
Optical and electronic spin properties of fluorescent micro- and nanodiamonds upon prolonged ultrahigh-temperature annealing
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 41(4).
open access via pubs.aip.org (publisher PDF)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 28, 2023
2022 journal article
Electron irradiation-induced paramagnetic and fluorescent defects in type Ib high pressure-high temperature microcrystalline diamonds and their evolution upon annealing
JOURNAL OF APPLIED PHYSICS, 132(7).
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 18, 2022
2021 journal article
Integrative structural dynamics probing of the conformational heterogeneity in synaptosomal-associated protein 25
CELL REPORTS PHYSICAL SCIENCE, 2(11).
TL;DR:
An integrative method is reported to probe the structural dynamics of SNAP-25 by combining replica-exchange discrete molecular dynamics simulations and label-based experiments at ensemble and single-molecule levels and it is expected that this integrative approach may help further the understanding of IDPs.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 14, 2022
2020 journal article
Alternative Reactivity of Leucine 5-Hydroxylase Using an Olefin-Containing Substrate to Construct a Substituted Piperidine Ring
BIOCHEMISTRY, 59(21), 1961–1965.
Contributors: L. Cha n , n, M. Davidson n, S. Xue *, T. Smirnova n , A. Smirnov n , Y. Guo *, W. Chang n
MeSH headings : Alkenes / chemistry; Alkenes / metabolism; Leucine / chemistry; Leucine / metabolism; Mixed Function Oxygenases / chemistry; Mixed Function Oxygenases / metabolism; Molecular Conformation; Nostoc / enzymology; Substrate Specificity
TL;DR:
It is demonstrated that the activity of an Fe/2OG enzyme can be redirected when changing the targeted carbon hybridization from sp3 to sp2 and the resulting epoxide subsequently undergoes intramolecular cyclization to form the substituted piperidine, 2S,5S-hydroxypipecolic acid.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 22, 2020
2020 journal article
Characterization of photonic band resonators for DNP NMR of thin film samples at 7 T magnetic field
JOURNAL OF MAGNETIC RESONANCE, 323.
author keywords: Solid-state NMR; Dynamic nuclear polarization; DNP; Synthetic diamonds; Photonic band gap resonator; Quasioptics
TL;DR:
It was found that average of B1e2 over the sample strongly depends on the arrangement of the dielectric layers that are the closest to the sample, which favors odd-numbered PBG resonator configurations for their use in DNP.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 8, 2021
2020 journal article
Electronic Structure of the Primary Electron Donor P-700(+center dot) in Photosystem I Studied by Multifrequency HYSCORE Spectroscopy at X- and Q-Band
JOURNAL OF PHYSICAL CHEMISTRY B, 125(1), 36–48.
MeSH headings : Chlorophyll; Electron Spin Resonance Spectroscopy; Electron Transport; Electronics; Electrons; Photosystem I Protein Complex
TL;DR:
Investigation of the electron spin density distribution in the cation radical P700+• of PSI from a thermophilic cyanobacterium Thermosynechococcus elongatus finds direct evidence of spin density delocalization over the both monomers in the heterodimer.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 25, 2020
2018 journal article
Elucidating the Reaction Pathway of Decarboxylation-Assisted Olefination Catalyzed by a Mononuclear Non-Heme Iron Enzyme
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 140(45), 15190–15193.
Contributors: C. Yu n, Y. Tang *, L. Cha n , n, T. Smirnova n , A. Smirnov n , Y. Guo *, W. Chang n
MeSH headings : Alkenes / chemistry; Alkenes / metabolism; Biocatalysis; Decarboxylation; Molecular Structure; Nonheme Iron Proteins / metabolism
TL;DR:
Experimental observations imply that a pathway involving an initial C-H activation followed by a benzylic carbocation species or by electron transfer coupled β-scission is likely utilized to complete C═C bond formation.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 10, 2018
2018 journal article
Enhancing sensitivity of Double Electron-Electron Resonance (DEER) by using Relaxation-Optimized Acquisition Length Distribution (RELOAD) scheme
Journal of Magnetic Resonance, 298, 115–126.
author keywords: PELDOR; DEER; EPR; Spin-labeling; Dipolar spectroscopy; Distance measurements
MeSH headings : Algorithms; Electron Spin Resonance Spectroscopy / methods; Gramicidin / chemistry; Leptospira; Models, Chemical; Models, Molecular; Rhodopsin / chemistry; Sensitivity and Specificity; Signal-To-Noise Ratio; Spin Labels
TL;DR:
A novel albeit simple approach to improve DEER sensitivity and decrease data acquisition time by introducing the signal acquisition scheme based on RELaxation Optimized Acquisition (Length) Distribution (DEER-RELOAD).
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: February 18, 2019
2018 journal article
Multi-resonant photonic band-gap/saddle coil DNP probehead for static solid state NMR of microliter volume samples
JOURNAL OF MAGNETIC RESONANCE, 297, 113–123.
Contributors: A. Nevzorov n, n, A. Marek n & A. Smirnov n
author keywords: Solid-state NMR; Dynamic nuclear polarization; DNP; Synthetic diamonds; Photonic band gap resonator; Quasioptics
TL;DR:
A one-dimensional photonic band-gap mmW resonator was constructed and tested that was incorporated inside a double-tuned radiofrequency (rf) NMR saddle coil and was the key element for constructing a multi-resonant integrated DNP/NMR probehead operating at 190-199 GHz EPR/300 MHz 1H/75.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 31, 2018
2018 journal article
Photonic band-gap resonators for high-field/high-frequency EPR of microliter-volume liquid aqueous samples
JOURNAL OF MAGNETIC RESONANCE, 296, 152–164.
Contributors: n, A. Nevzorov n & A. Smirnov n
author keywords: Photonic crystals; High-field EPR; Resonators; Aqueous samples
MeSH headings : Algorithms; Ceramics / chemistry; Electromagnetic Fields; Electron Spin Resonance Spectroscopy / methods; Equipment Design; Gadolinium / chemistry; Gramicidin / chemistry; Lipid Bilayers / chemistry; Nanostructures; Photons; Porosity; Radio Waves; Water / chemistry
TL;DR:
A radically new line of high Q-factor mmW resonators that are based on forming lattice defects in one-dimensional photonic band-gap (PBG) structures composed of low-loss ceramic discs of λ/4 in thickness and having alternating dielectric constants are described.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 31, 2018
2017 journal article
Fluence-Dependent Evolution of Paramagnetic Triplet Centers in e-Beam Irradiated Microcrystalline lb Type HPHT Diamond
JOURNAL OF PHYSICAL CHEMISTRY C, 121(40), 22335–22346.
Contributors: A. Shames *, A. Smirnov n , n, E. Danilov n , N. Nunn *, G. McGuire*, M. Torelli *, O. Shenderova *
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2017 journal article
Oligomeric Structure of Anabaena Sensory Rhodopsin in a Lipid Bilayer Environment by Combining Solid-State NMR and Long-range DEER Constraints
JOURNAL OF MOLECULAR BIOLOGY, 429(12), 1903–1920.
Contributors: n, S. Wang *, R. Munro*, M. Donohue n, M. Ward *, D. Bolton*, L. Brown *, T. Smirnova n , V. Ladizhansky *, A. Smirnov n
author keywords: double electron electron resonance (DEER); site-directed spin labeling; solid-state NMR; paramagnetic relaxation enhancement; membrane protein structure
MeSH headings : Anabaena / chemistry; Lipid Bilayers / chemistry; Magnetic Resonance Spectroscopy; Membrane Proteins / chemistry; Membrane Proteins / metabolism; Models, Biological; Models, Molecular; Protein Multimerization; Sensory Rhodopsins / chemistry; Sensory Rhodopsins / metabolism
TL;DR:
The combined approach of using complementary DEER and NMR measurements for the determination of oligomeric structures would be widely applicable to membrane proteins where paramagnetic tags can be introduced.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2015 journal article
Cysteine-Specific Labeling of Proteins with a Nitroxide Biradical for Dynamic Nuclear Polarization NMR
The Journal of Physical Chemistry B, 119(32), 10180–10190.
Contributors: M. Voinov n, D. Good, M. Ward, n, A. Marek n, M. Caporini*, M. Rosay*, R. Munro
MeSH headings : Anabaena; Cyclic N-Oxides / chemical synthesis; Cyclic N-Oxides / chemistry; Cysteine / chemistry; Glycerol / chemistry; Mesylates / chemical synthesis; Mesylates / chemistry; Molecular Structure; Mutation; Nitrogen Isotopes / chemistry; Nitrogen Oxides / chemical synthesis; Nitrogen Oxides / chemistry; Nuclear Magnetic Resonance, Biomolecular / methods; Propanols / chemistry; Protons; Sensory Rhodopsins / chemistry; Sensory Rhodopsins / genetics; Solvents / chemistry; Temperature; Water / chemistry
TL;DR:
A new biradical is synthesized, ToSMTSL, which is based on the known DNP agent TOTAPOL, but also contains a thiol-specific methanethiosulfonate group to allow for incorporating this biradicals into a protein in a site-directed manner.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2015 journal article
Nanotube Array Method for Studying Lipid-Induced Conformational Changes of a Membrane Protein by Solid-State NMR
BIOPHYSICAL JOURNAL, 108(1), 5–9.
Contributors: A. Marek n, W. Tang n, n, A. Nevzorov n & A. Smirnov n
MeSH headings : Aluminum Oxide / chemistry; Dimyristoylphosphatidylcholine / chemistry; Feasibility Studies; Least-Squares Analysis; Lipid Bilayers / chemistry; Membrane Proteins / chemistry; Microscopy, Electron, Scanning; Nanotubes / chemistry; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular / methods; Phosphatidylcholines / chemistry; Phosphatidylglycerols / chemistry; Phosphorus Isotopes; Protein Structure, Secondary
TL;DR:
The anodic aluminum oxide alignment method is applicable to a broader repertoire of lipids versus bicelle bilayer mimetics currently employed in solid-state nuclear magnetic resonance of oriented samples, thus allowing for elucidation of the role played by lipids in shaping membrane proteins.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
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