1
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Olson MA, Han R, Ravula T, Borcik CG, Wang S, Viera PA, Rienstra CM. A complete 3D-printed tool kit for Solid-State NMR sample and rotor handling. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2024; 366:107748. [PMID: 39178738 PMCID: PMC11423700 DOI: 10.1016/j.jmr.2024.107748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 08/26/2024]
Abstract
Solid state NMR (SSNMR) is a highly versatile and broadly applicable method for studying the structure and dynamics of biomolecules and materials. For scientists entering the field of SSNMR, the many quotidian activities required in the workflow to prepare samples for data collection can present a significant barrier to adoption. These steps include transfer of samples into rotors, marking the reflective surfaces for high sensitivity tachometer signal detection, inserting rotors into the magic-angle spinning (MAS) stator, achieving stable spinning, and removing and storing rotors to ensure reproducibility of data collection conditions. Even experienced spectroscopists experience occasional problems with these operations, and the cumulative probability of a delay to successful data collection is high enough to cause frequent disruptions to instrument schedules, particularly in the context of large facilities serving a diverse community of users. These problems are all amplified when utilizing rotors smaller than about 4 mm in diameter. Therefore, to improve the reliability and robustness of SSNMR sample preparation workflows, here we describe a set of tools for rotor packing, unpacking, tachometer marking, extraction and storage. Stereolithography 3D printing was employed as a cost-effective and convenient method for prototyping and manufacturing a full range of designs suitable for several types of probes and rotor geometries.
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Affiliation(s)
- Martin A Olson
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA
| | - Ruixian Han
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA
| | - Thirupathi Ravula
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA; National Magnetic Resonance Facility at Madison (NMRFAM), University of Wisconsin-Madison, Madison, WI, 53706 USA
| | - Collin G Borcik
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA
| | - Songlin Wang
- National Magnetic Resonance Facility at Madison (NMRFAM), University of Wisconsin-Madison, Madison, WI, 53706 USA
| | - Perla A Viera
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA; Biophysics Graduate Program, University of Wisconsin-Madison, Madison, WI, 53706 USA
| | - Chad M Rienstra
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA; Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706 USA; National Magnetic Resonance Facility at Madison (NMRFAM), University of Wisconsin-Madison, Madison, WI, 53706 USA.
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2
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Sardo M, Morais T, Soares M, Vieira R, Ilkaeva M, Lourenço MAO, Marín-Montesinos I, Mafra L. Unravelling the structure of CO 2 in silica adsorbents: an NMR and computational perspective. Chem Commun (Camb) 2024; 60:4015-4035. [PMID: 38525497 PMCID: PMC11003455 DOI: 10.1039/d3cc05942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
This comprehensive review describes recent advancements in the use of solid-state NMR-assisted methods and computational modeling strategies to unravel gas adsorption mechanisms and CO2 speciation in porous CO2-adsorbent silica materials at the atomic scale. This work provides new perspectives for the innovative modifications of these materials rendering them more amenable to the use of advanced NMR methods.
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Affiliation(s)
- Mariana Sardo
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tiago Morais
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemistry, University of Iceland, Science Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Márcio Soares
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ricardo Vieira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Marina Ilkaeva
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemical and Environmental Engineering, University of Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain
| | - Mirtha A O Lourenço
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ildefonso Marín-Montesinos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Luís Mafra
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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3
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Uribe JL, Jimenez MD, Kelz JI, Liang J, Martin RW. Automated test apparatus for bench-testing the magnetic field homogeneity of NMR transceiver coils. JOURNAL OF MAGNETIC RESONANCE OPEN 2024; 18:100142. [PMID: 38444623 PMCID: PMC10914335 DOI: 10.1016/j.jmro.2023.100142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
We describe an automated hands-off bench testing method for measuring the magnetic field profile of transceiver coils for nuclear magnetic resonance (NMR). The scattering parameter (S-parameter) data is measured using a portable network analyzer, and the results are automatically exported to a computer for plotting and viewing. This assay dramatically reduces the time needed to measure the magnetic field (B1) homogeneity profile of a transceiver coil while also improving accuracy relative to manual operation. Here, we demonstrate the method on a saddle coil of a solution-state NMR probe in comparison to profiles obtained using NMR spectroscopy measurements. We also measure the axial and radial homogeneity of a variable-pitch solenoid.
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Affiliation(s)
- Jose L Uribe
- Department of Chemistry, University of California, Irvine 92697-2025
| | - Matthew D Jimenez
- Department of Chemistry, University of California, Irvine 92697-2025
| | - Jessica I Kelz
- Department of Chemistry, University of California, Irvine 92697-2025
| | - Jeanie Liang
- Department of Chemistry, University of California, Irvine 92697-2025
| | - Rachel W Martin
- Department of Chemistry, University of California, Irvine 92697-2025
- Department of Molecular Biology and Biochemistry, University of California, Irvine 92697-3900
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4
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Osborn Popp TM, Matchett BT, Green RG, Chhabra I, Mumudi S, Bernstein AD, Perodeau JR, Nieuwkoop AJ. 3D-Printable centrifugal devices for biomolecular solid state NMR rotors. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2023; 354:107524. [PMID: 37481918 PMCID: PMC10528322 DOI: 10.1016/j.jmr.2023.107524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 07/25/2023]
Abstract
The advent of magic angle spinning (MAS) rates exceeding 100 kHz has facilitated the acquisition of 1H-detected solid-state NMR spectra of biomolecules with high resolution. However, challenges can arise when preparing rotors for these experiments, due to the physical properties of biomolecular solid samples and the small dimensions of the rotors. In this study, we have designed 3D-printable centrifugal devices that facilitate efficient and consistent packing of crystalline protein slurries or viscous phospholipids into 0.7 mm rotors. We demonstrate the efficacy of these packing devices using 1H-detected solid state NMR at 105 kHz. In addition to devices for 0.7 mm rotors, we have also developed devices for other frequently employed rotor sizes and styles. We have made all our designs openly accessible, and we encourage their usage and ongoing development as a shared effort within the solid state NMR community.
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Affiliation(s)
- Thomas M Osborn Popp
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States.
| | - Brandon T Matchett
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States
| | - Rashawn G Green
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States
| | - Insha Chhabra
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States
| | - Smriti Mumudi
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States
| | - Ashley D Bernstein
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States
| | - Jacqueline R Perodeau
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States
| | - Andrew J Nieuwkoop
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New, Jersey, Piscataway, NJ 08854, United States.
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5
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Xu K, Aldudak F, Pecher O, Braun M, Neuberger A, Foysi H, Schmedt Auf der Günne J. High resolution solid-state NMR on the desktop. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2023; 126:101884. [PMID: 37419044 DOI: 10.1016/j.ssnmr.2023.101884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
High-resolution low-field nuclear magnetic resonance (NMR) spectroscopy has found wide application for characterization of liquid compounds because of the low maintenance cost of modern permanent magnets. Solid-state NMR so far is limited to low-resolution measurements of static powders, because of the limited space available in this type of magnet. Magic-angle sample spinning and low-magnetic fields are an attractive combination to achieve high spectral resolution especially for paramagnetic solids. Here we show that magic angle spinning modules can be miniaturized using 3D printing techniques so that high-resolution solid-state NMR in permanent magnets becomes possible. The suggested conical rotor design was developed using finite element calculations and provides sample spinning frequencies higher than 20 kHz. The setup was tested on various diamagnetic and paramagnetic compounds including paramagnetic battery materials. The only comparable experiments in low-cost magnets known so far, had been done in the early times of magic angle spinning using electromagnets at much lower sample spinning frequency. Our results demonstrate that high-resolution low-field magic-angle-spinning NMR does not require expensive superconducting magnets and that high-resolution solid-state NMR spectra of paramagnetic compounds are feasible. Generally, this could introduce low-field solid-state NMR for abundant nuclei standard as a routine analytical tool.
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Affiliation(s)
- Ke Xu
- University of Siegen, Faculty IV: School of Science and Technology, Department of Chemistry and Biology, Inorganic Materials Chemistry, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Fettah Aldudak
- University of Siegen, Faculty IV: School of Science and Technology, Department of Mechanical Engineering, Institute of Fluid and Thermodynamics, Paul-Bonatz-Str. 9-11, 57078, Siegen, Germany
| | - Oliver Pecher
- NMR Service GmbH, Blumenstr. 70 Haus 3, 99092, Erfurt, Germany
| | - Marco Braun
- NMR Service GmbH, Blumenstr. 70 Haus 3, 99092, Erfurt, Germany
| | - Andreas Neuberger
- University of Siegen, Faculty IV: School of Science and Technology, Department of Chemistry and Biology, Inorganic Materials Chemistry, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Holger Foysi
- University of Siegen, Faculty IV: School of Science and Technology, Department of Mechanical Engineering, Institute of Fluid and Thermodynamics, Paul-Bonatz-Str. 9-11, 57078, Siegen, Germany
| | - Jörn Schmedt Auf der Günne
- University of Siegen, Faculty IV: School of Science and Technology, Department of Chemistry and Biology, Inorganic Materials Chemistry, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany.
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6
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Pereira D, Sardo M, Marín-Montesinos I, Mafra L. One-Shot Resin 3D-Printed Stators for Low-Cost Fabrication of Magic-Angle Spinning NMR Probeheads. Anal Chem 2023. [PMID: 37376721 DOI: 10.1021/acs.analchem.3c01323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Additive manufacturing such as three-dimensional (3D)-printing has revolutionized the fast and low-cost fabrication of otherwise expensive NMR parts. High-resolution solid-state NMR spectroscopy demands rotating the sample at a specific angle (54.74°) inside a pneumatic turbine, which must be designed to achieve stable and high spinning speeds without mechanical friction. Moreover, instability of the sample rotation often leads to crashes, resulting in costly repairs. Producing these intricate parts requires traditional machining, which is time-consuming, costly, and relies on specialized labor. Herein, we show that 3D-printing can be used to fabricate the sample holder housing (stator) in one shot, while the radiofrequency (RF) solenoid was constructed using conventional materials available in electronics stores. The 3D-printed stator, equipped with a homemade RF coil, showed remarkable spinning stability, yielding high-quality NMR data. At a cost below 5 €, the 3D-printed stator represents a cost reduction of over 99% compared to repaired commercial stators, illustrating the potential of 3D-printing for mass-producing affordable magic-angle spinning stators.
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Affiliation(s)
- Daniel Pereira
- CICECO─Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mariana Sardo
- CICECO─Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ildefonso Marín-Montesinos
- CICECO─Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Luís Mafra
- CICECO─Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Amerein C, Banerjee U, Pang Z, Lu W, Pimenta V, Tan KO. In-house fabrication of 1.3 to 7 mm MAS drive caps using desktop 3D printers. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2023; 348:107391. [PMID: 36801500 DOI: 10.1016/j.jmr.2023.107391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
The 3D-printing technology has emerged as a well-developed method to produce parts with considerably low cost and yet with high precision (<100 μm). Recent literature has shown that the 3D-printing technology can be exploited to fabricate a magic-angle spinning (MAS) system in solid-state nuclear magnetic resonance (NMR) spectroscopy. In particular, it was demonstrated that advanced industry-grade 3D printers could fabricate 3.2 mm MAS drive caps with intricate features, and the caps were shown to spin > 20 kHz. Here, we show that not only lab-affordable benchtop 3D printers can produce 3.2 mm drive caps with a similar quality as the commercialized version, but also smaller 2.5 mm and 1.3 mm MAS drive caps-despite a slight compromise in performance. All in-house fabricated drive caps (1.3 to 7 mm) can be consistently reproduced (>90 %) and achieve excellent spinning performances. In summary, the > 3.2 mm systems have similar performances as the commercial systems, while the 2.5- and 1.3-mm caps can spin up to 26 kHz ± 2 Hz, and 46 kHz ± 1 Hz, respectively. The low-cost and fast in-house fabrication of MAS drive caps allows easy prototyping of new MAS drive cap models and, possibly, new NMR applications. For instance, we have fabricated a 4 mm drive cap with a center hole that could allow better light penetration or sample insertion during MAS. Besides, an added groove design on the drive cap allows an airtight seal suitable for probing air- or moisture-sensitive materials. Moreover, the 3D-printed cap was shown to be robust for low-temperature MAS experiments at ∼ 100 K, making it suitable for DNP experiments.
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Affiliation(s)
- Cyriaque Amerein
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Utsab Banerjee
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Zhenfeng Pang
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Wenqing Lu
- Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL University, 75005 Paris, France
| | - Vanessa Pimenta
- Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL University, 75005 Paris, France
| | - Kong Ooi Tan
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France.
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8
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Pereira D, Fonseca R, Marin-Montesinos I, Sardo M, Mafra L. Understanding CO2 adsorption mechanisms in porous adsorbents: a solid-state NMR survey. Curr Opin Colloid Interface Sci 2023. [DOI: 10.1016/j.cocis.2023.101690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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