Antonin Marek

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

2021 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
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 8, 2021

2020 journal article

Electrostatic properties of inner nanopore surfaces of anodic aluminum oxide membranes upon high temperature annealing revealed by EPR of pH-sensitive spin probes and labels

JOURNAL OF MEMBRANE SCIENCE, 604.

By: E. Kovaleva*, L. Molochnikov, D. Tambasova*, A. Marek n, M. Chestnut n, V. Osipova*, D. Antonov*, I. Kirilyuk*, A. Smirnov n

author keywords: Anodic aluminum oxide; Nanopores; Surface electrostatic potential; Electron paramagnetic resonance; Spin labeling
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 20, 2020

2019 journal article

A biradical-tagged phospholipid as a polarizing agent for solid-state MAS Dynamic Nuclear Polarization NMR of membrane proteins

Solid State Nuclear Magnetic Resonance, 100, 92–101.

By: D. Good*, M. Voinov n, D. Bolton*, M. Ward*, I. Sergeyev*, M. Caporini*, P. Scheffer*, A. Lo* ...

Contributors: D. Good*, M. Voinov n, D. Bolton*, M. Ward*, I. Sergeyev*, M. Caporini*, P. Scheffer*, A. Lo* ...

author keywords: Nuclear magnetic resonance; Dynamic nuclear polarization; Electron spin resonance; Biradical; Signal enhancement; Membrane protein; Lipid; Bilayer
MeSH headings : Glycerol / chemistry; Lipid Bilayers / chemistry; Magnetic Resonance Spectroscopy; Membrane Proteins / chemistry; Phospholipids / chemistry; Water / chemistry
TL;DR: Conformational changes and an inhomogeneous distribution of the lipid-based biradicals in lipid bilayers emerged as important factors to consider for further development of this matrix-free approach for DNP of membrane proteins. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref, ORCID
Added: May 28, 2019

2019 journal article

Dielectric and Electrostatic Properties of the Silica Nanoparticle-Water Interface by EPR of pH-Sensitive Spin Probes

JOURNAL OF PHYSICAL CHEMISTRY C, 123(49), 29972–29985.

By: V. Perelygin n, M. Voinov n, A. Marek n, E. Ou n, J. Krim n, D. Brenner n, T. Smirnova n, A. Smirnov n

Contributors: V. Perelygin n, M. Voinov n, A. Marek n, E. Ou n, J. Krim n, D. Brenner n, T. Smirnova n, A. Smirnov n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 6, 2020

2019 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.

By: S. Milikisiyants n, M. Voinov n, A. Marek n, M. Jafarabadi n, J. Liu*, R. Han*, S. Wang*, A. Smirnov*

Contributors: S. Milikisiyants n, M. Voinov n, A. Marek n, M. Jafarabadi n, J. Liu*, R. Han*, S. Wang*, A. Smirnov*

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
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, S. Milikisiyants 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
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 31, 2018

2018 journal article

Proton Activity in Nanochannels Revealed by Electron Paramagnetic Resonance of Ionizable Nitroxides: A Test of the Poisson-Boltzmann Double Layer Theory

JOURNAL OF PHYSICAL CHEMISTRY C, 122(35), 20527–20538.

By: E. Kovaleva*, L. Molochnikov, D. Antonov*, D. Stepanova*, M. Hartmann*, A. Tsmokalyuk*, A. Marek n, A. Smirnov n

Contributors: E. Kovaleva*, L. Molochnikov, D. Antonov*, D. Tambasova Stepanova, M. Hartmann*, A. Tsmokalyuk*, A. Marek n, A. Smirnov n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 16, 2018

2017 journal article

A Combined QCM and AFM Study Exploring the Nanoscale Lubrication Mechanism of Silica Nanoparticles in Aqueous Suspension

TRIBOLOGY LETTERS, 65(3).

By: B. Acharya n, M. Chestnut n, A. Marek n, A. Smirnov n & J. Krim n

Contributors: B. Acharya n, M. Chestnut n, A. Marek n, A. Smirnov n & J. Krim n

author keywords: QCM; Nanoscale roughness; Nano-additives; AFM; Fractal; SiO2; Electrokinetic phenomena
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

A comparative study of the nanoscale and macroscale tribological attributes of alumina and stainless steel surfaces immersed in aqueous suspensions of positively or negatively charged nanodiamonds

Beilstein Journal of Nanotechnology, 8, 2045–2059.

By: C. Curtis, A. Marek, A. Smirnov & J. Krim

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Spin Probe Multi-Frequency EPR Study of Unprocessed Cotton Fibers

Cell Biochemistry and Biophysics, 75(2), 211–226.

By: A. Marek n, M. Voinov n & A. Smirnov n

Contributors: A. Marek n, M. Voinov n & A. Smirnov n

author keywords: Spin probes; Cotton fibers; Electron paramagnetic resonance spectroscopy; Multi-frequency EPR; High-field EPR; Multi-component spectral simulations
MeSH headings : Cellulose / chemistry; Cotton Fiber; Cyclic N-Oxides / chemistry; Electron Spin Resonance Spectroscopy; Least-Squares Analysis; Solvents / chemistry; Spin Labels; Temperature; Viscosity
TL;DR: One of the results of this study is a demonstration of a co-existence of cellulose nanodomains with different physicochemical properties such as polarity and microviscosity that are affected by solvents and temperature. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2016 journal article

Acid-Base Properties of Nanoconfined Volumes of Anodic Aluminum Oxide Pores by EPR of pH-Sensitive Spin Probes

JOURNAL OF PHYSICAL CHEMISTRY C, 120(5), 2703–2711.

By: E. Kovaleva*, L. Molochnikov, U. Venkatesan n, A. Marek n, D. Stepanova*, K. Kozhikhova*, M. Mironov*, A. Smirnov n

Contributors: E. Kovaleva*, L. Molochnikov, U. Venkatesan n, A. Marek n, D. Stepanova*, K. Kozhikhova*, M. Mironov*, A. Smirnov n

UN Sustainable Development Goal Categories
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.

By: M. Voinov n, D. Good, M. Ward, S. Milikisiyants n, A. Marek n, M. Caporini*, M. Rosay*, R. Munro ...

Contributors: M. Voinov n, D. Good, M. Ward, S. Milikisiyants 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
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, S. Milikisiyants 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)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

EPR assessment of protein sites for incorporation of Gd(III) MRI contrast labels

CONTRAST MEDIA & MOLECULAR IMAGING, 8(3), 252–264.

By: J. Lagerstedt*, J. Petrlova*, S. Hilt*, A. Marek n, Y. Chung*, R. Sriram*, M. Budamagunta*, J. Desreux* ...

Contributors: J. Lagerstedt*, J. Petrlova*, S. Hilt*, A. Marek n, Y. Chung*, R. Sriram*, M. Budamagunta*, J. Desreux* ...

author keywords: apolipoprotein A-I; magnetic resonance imaging (MRI); electron paramagnetic resonance (EPR) spectroscopy; protein contrast agent; high-density lipoprotein (HDL); site-directed MRI label
MeSH headings : Binding Sites; Contrast Media / analysis; Contrast Media / chemical synthesis; Drug Design; Electron Spin Resonance Spectroscopy / methods; Gadolinium / chemistry; Magnetic Resonance Imaging / methods; Nanocapsules / chemistry; Protein Binding; Proteins / analysis; Proteins / chemistry; Reproducibility of Results; Sensitivity and Specificity; Staining and Labeling / methods
TL;DR: X-band EPR provides a practical assessment for the suitability of imaging candidates containing the site-directed ADO3A contrast probe for imaging reconstituted HDL (rHDL) biodistribution, metabolism and regulation in vivo. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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