1
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Hua Y, Strauss M, Fisher S, Mauser MFX, Manchet P, Smacchia M, Geyer P, Shayeghi A, Pfeffer M, Eggenweiler TH, Daly S, Commandeur J, Mayor M, Arndt M, Šolomek T, Köhler V. Giving the Green Light to Photochemical Uncaging of Large Biomolecules in High Vacuum. JACS AU 2023; 3:2790-2799. [PMID: 37885583 PMCID: PMC10598566 DOI: 10.1021/jacsau.3c00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/02/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023]
Abstract
The isolation of biomolecules in a high vacuum enables experiments on fragile species in the absence of a perturbing environment. Since many molecular properties are influenced by local electric fields, here we seek to gain control over the number of charges on a biopolymer by photochemical uncaging. We present the design, modeling, and synthesis of photoactive molecular tags, their labeling to peptides and proteins as well as their photochemical validation in solution and in the gas phase. The tailored tags can be selectively cleaved off at a well-defined time and without the need for any external charge-transferring agents. The energy of a single or two green photons can already trigger the process, and it is soft enough to ensure the integrity of the released biomolecular cargo. We exploit differences in the cleavage pathways in solution and in vacuum and observe a surprising robustness in upscaling the approach from a model system to genuine proteins. The interaction wavelength of 532 nm is compatible with various biomolecular entities, such as oligonucleotides or oligosaccharides.
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Affiliation(s)
- Yong Hua
- Department
of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
| | - Marcel Strauss
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Sergey Fisher
- Van’t
Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, PO Box 94157, 1090 GD Amsterdam, The Netherlands
| | - Martin F. X. Mauser
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Pierre Manchet
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Martina Smacchia
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Philipp Geyer
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Armin Shayeghi
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Michael Pfeffer
- Department
of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
| | - Tim Henri Eggenweiler
- Department
of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
| | - Steven Daly
- MS
Vision, Televisieweg
40, 1322 AM Almere, The Netherlands
| | - Jan Commandeur
- MS
Vision, Televisieweg
40, 1322 AM Almere, The Netherlands
| | - Marcel Mayor
- Department
of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
- Institute
for Nanotechnology (INT), Karlsruhe Institute
of Technology (KIT), P.O. Box 3640, DE-76021 Karlsruhe Eggenstein-Leopoldshafen, Germany
- Lehn Institute
of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510274, P. R. China
| | - Markus Arndt
- Vienna
Faculty of Physics, University of Vienna,
VDSP & VCQ, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Tomáš Šolomek
- Van’t
Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, PO Box 94157, 1090 GD Amsterdam, The Netherlands
| | - Valentin Köhler
- Department
of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
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2
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Ionicioiu R. Interferometric Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2023. [PMID: 37209116 DOI: 10.1021/jasms.3c00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Accelerator mass spectrometry (AMS) is a widely used technique with multiple applications, including geology, molecular biology, and archeology. In order to achieve a high dynamic range, AMS requires tandem accelerators and large magnets, which thus confines it to big laboratories. Here we propose interferometric mass spectrometry (Interf-MS), a novel method of mass separation which uses quantum interference. Interf-MS employs the wave-like properties of the samples and as such is complementary to AMS, in which samples are particle-like. This complementarity has two significant consequences: (i) in Interf-MS separation is performed according to the absolute mass m, and not to the mass-to-charge ratio m/q, as in AMS; (ii) in Interf-MS the samples are in the low-velocity regime, in contrast to the high-velocity regime used in AMS. Potential applications of Interf-MS are compact devices for mobile applications, sensitive molecules that break at the acceleration stage and neutral samples which are difficult to ionize.
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Affiliation(s)
- Radu Ionicioiu
- Horia Hulubei National Institute of Physics and Nuclear Engineering, 077125 Bucharest-Măgurele, Romania
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3
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Nawafleh S, Qaswal AB, Alali O, Zayed FM, Al-Azzam AM, Al-Kharouf K, Ali MB, Albliwi MA, Al-Hamarsheh R, Iswaid M, Albanna A, Enjadat A, Al-Adwan MAO, Dibbeh K, Shareah EAA, Hamdan A, Suleiman A. Quantum Mechanical Aspects in the Pathophysiology of Neuropathic Pain. Brain Sci 2022; 12:brainsci12050658. [PMID: 35625044 PMCID: PMC9140023 DOI: 10.3390/brainsci12050658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/08/2022] [Accepted: 05/12/2022] [Indexed: 11/17/2022] Open
Abstract
Neuropathic pain is a challenging complaint for patients and clinicians since there are no effective agents available to get satisfactory outcomes even though the pharmacological agents target reasonable pathophysiological mechanisms. This may indicate that other aspects in these mechanisms should be unveiled to comprehend the pathogenesis of neuropathic pain and thus find more effective treatments. Therefore, in the present study, several mechanisms are chosen to be reconsidered in the pathophysiology of neuropathic pain from a quantum mechanical perspective. The mathematical model of the ions quantum tunneling model is used to provide quantum aspects in the pathophysiology of neuropathic pain. Three major pathophysiological mechanisms are revisited in the context of the quantum tunneling model. These include: (1) the depolarized membrane potential of neurons; (2) the cross-talk or the ephaptic coupling between the neurons; and (3) the spontaneous neuronal activity and the emergence of ectopic action potentials. We will show mathematically that the quantum tunneling model can predict the occurrence of neuronal membrane depolarization attributed to the quantum tunneling current of sodium ions. Moreover, the probability of inducing an ectopic action potential in the axons of neurons will be calculated and will be shown to be significant and influential. These ectopic action potentials are generated due to the formation of quantum synapses which are assumed to be the mechanism behind the ephaptic transmission. Furthermore, the spontaneous neuronal activity and the emergence of ectopic action potentials independently from any adjacent stimulated neurons are predicted to occur according to the quantum tunneling model. All these quantum mechanical aspects contribute to the overall hyperexcitability of the neurons and to the pathogenesis of neuropathic pain. Additionally, providing a new perspective in the pathophysiology of neuropathic pain may improve our understanding of how the neuropathic pain is generated and maintained and may offer new effective agents that can improve the overall clinical outcomes of the patients.
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Affiliation(s)
- Sager Nawafleh
- Department of Anesthesia and Intensive Care Unit, The Hashemite University, Zarqa 13115, Jordan;
| | - Abdallah Barjas Qaswal
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
- Correspondence:
| | - Obada Alali
- Department of Anesthesia and Intensive Care, Alabdali Clemenceau Hospital, Amman 11190, Jordan;
| | - Fuad Mohammed Zayed
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | | | - Khaled Al-Kharouf
- Southampton Orthopedics: Centre for Arthroplasty and Revision Surgery, University Hospital Southampton, Tremona Road, Southampton SO16 6YD, UK;
| | - Mo’ath Bani Ali
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | - Moath Ahmad Albliwi
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | - Rawan Al-Hamarsheh
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | - Mohammad Iswaid
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | - Ahmad Albanna
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | - Ahmad Enjadat
- Department of Internship Program, Jordan University Hospital, Amman 11942, Jordan;
| | - Mohammad Abu Orabi Al-Adwan
- School of Medicine, The University of Jordan, Amman 11942, Jordan; (F.M.Z.); (M.B.A.); (M.A.A.); (R.A.-H.); (M.I.); (A.A.); (M.A.O.A.-A.)
| | - Khaled Dibbeh
- Leicester University Hospitals, P.O. Box 7853, Leicester LE1 9WW, UK;
| | - Ez-Aldeen Abu Shareah
- Accident and Emergency Department, The Princess Alexandra Hospital NHS Trust, Hamstel Road, Harlow CM20 1QX, UK;
| | - Anas Hamdan
- Department of Anesthesia and Intensive Care Unit, Istishari Hospital, Amman 11184, Jordan;
| | - Aiman Suleiman
- Department of Anesthesia, Intensive Care and Pain Management, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA;
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Le Mouël C. A Logical Theory of Life. PSYCHOLOGICAL PERSPECTIVES-A QUARTERLY JOURNAL OF JUNGIAN THOUGHT 2021. [DOI: 10.1080/00332925.2020.1852838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Dal Lin C, Radu CM, Vitiello G, Romano P, Polcari A, Iliceto S, Simioni P, Tona F. Sounds Stimulation on In Vitro HL1 Cells: A Pilot Study and a Theoretical Physical Model. Int J Mol Sci 2020; 22:ijms22010156. [PMID: 33375749 PMCID: PMC7796405 DOI: 10.3390/ijms22010156] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 02/07/2023] Open
Abstract
Mechanical vibrations seem to affect the behaviour of different cell types and the functions of different organs. Pressure waves, including acoustic waves (sounds), could affect cytoskeletal molecules via coherent changes in their spatial organization and mechano-transduction signalling. We analyzed the sounds spectra and their fractal features. Cardiac muscle HL1 cells were exposed to different sounds, were stained for cytoskeletal markers (phalloidin, beta-actin, alpha-tubulin, alpha-actinin-1), and studied with multifractal analysis (using FracLac for ImageJ). A single cell was live-imaged and its dynamic contractility changes in response to each different sound were analysed (using Musclemotion for ImageJ). Different sound stimuli seem to influence the contractility and the spatial organization of HL1 cells, resulting in a different localization and fluorescence emission of cytoskeletal proteins. Since the cellular behaviour seems to correlate with the fractal structure of the sound used, we speculate that it can influence the cells by virtue of the different sound waves’ geometric properties that we have photographed and filmed. A theoretical physical model is proposed to explain our results, based on the coherent molecular dynamics. We stress the role of the systemic view in the understanding of the biological activity.
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Affiliation(s)
- Carlo Dal Lin
- Department of Cardiac, Thoracic and Vascular Sciences, Padua University Medical School, 35100 Padua, Italy; (S.I.); (F.T.)
- Correspondence: ; Tel.: +39-049-8218642; Fax: +39-049-8211802
| | - Claudia Maria Radu
- Department of Women’s and Children’s Health, University of Padua, 35100 Padua, Italy;
- Department of Medicine, Thrombotic and Haemorrhagic Diseases Unit, Veneto Region Haemophilia and Thrombophilia Centre, University of Padua Medical School, 35100 Padua, Italy;
| | - Giuseppe Vitiello
- Department of Physics “E.R. Caianiello”, Salerno University, Fisciano, 84084 Salerno, Italy;
| | - Paola Romano
- Department of Sciences and Technologies, Sannio University, 82100 Benevento, Italy;
- CNR-SPIN Salerno, Baronissi, 84084 Salerno, Italy
| | | | - Sabino Iliceto
- Department of Cardiac, Thoracic and Vascular Sciences, Padua University Medical School, 35100 Padua, Italy; (S.I.); (F.T.)
| | - Paolo Simioni
- Department of Medicine, Thrombotic and Haemorrhagic Diseases Unit, Veneto Region Haemophilia and Thrombophilia Centre, University of Padua Medical School, 35100 Padua, Italy;
| | - Francesco Tona
- Department of Cardiac, Thoracic and Vascular Sciences, Padua University Medical School, 35100 Padua, Italy; (S.I.); (F.T.)
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6
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Brand C, Kiałka F, Troyer S, Knobloch C, Simonović K, Stickler BA, Hornberger K, Arndt M. Bragg Diffraction of Large Organic Molecules. PHYSICAL REVIEW LETTERS 2020; 125:033604. [PMID: 32745420 DOI: 10.1103/physrevlett.125.033604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
We demonstrate Bragg diffraction of the antibiotic ciprofloxacin and the dye molecule phthalocyanine at a thick optical grating. The observed patterns show a single dominant diffraction order with the expected dependence on the incidence angle as well as oscillating population transfer between the undiffracted and diffracted beams. We achieve an equal-amplitude splitting of 14ℏk (photon momenta) and maximum momentum transfer of 18ℏk. This paves the way for efficient, large-momentum beam splitters and mirrors for hot and complex molecules.
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Affiliation(s)
- Christian Brand
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria
- German Aerospace Center (DLR), Institute of Quantum Technologies, Söflinger Straße 100, 89077 Ulm, Germany
| | - Filip Kiałka
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria
- Faculty of Physics, University of Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, Germany
| | - Stephan Troyer
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Christian Knobloch
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Ksenija Simonović
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Benjamin A Stickler
- Faculty of Physics, University of Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, Germany
- QOLS, Blackett Laboratory, Imperial College London, SW7 2AZ London, United Kingdom
| | - Klaus Hornberger
- Faculty of Physics, University of Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, Germany
| | - Markus Arndt
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria
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7
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Schätti J, Köhler V, Mayor M, Fein YY, Geyer P, Mairhofer L, Gerlich S, Arndt M. Matter-wave interference and deflection of tripeptides decorated with fluorinated alkyl chains. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4514. [PMID: 32363659 PMCID: PMC7317408 DOI: 10.1002/jms.4514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 06/11/2023]
Abstract
Studies of neutral biomolecules in the gas phase allow for the study of molecular properties in the absence of solvent and charge effects, thus complementing spectroscopic and analytical methods in solution or in ion traps. Some properties, such as the static electronic susceptibility, are best accessed in experiments that act on the motion of the neutral molecules in an electric field. Here, we screen seven peptides for their thermal stability and electron impact ionizability. We identify two tripeptides as sufficiently volatile and thermostable to be evaporated and interfered in the long-baseline universal matter-wave interferometer. Monitoring the deflection of the interferometric molecular nanopattern in a tailored external electric field allows us to measure the static molecular susceptibility of Ala-Trp-Ala and Ala-Ala-Trp bearing fluorinated alkyl chains at C- and N-termini. The respective values are 4 π ε 0 × 330 ± 150 Å 3 and 4 π ε 0 × 270 ± 80 Å 3 .
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Affiliation(s)
- Jonas Schätti
- Department of ChemistryUniversity of BaselCH‐St. Johannsring 1Basel4056Switzerland
| | - Valentin Köhler
- Department of ChemistryUniversity of BaselCH‐St. Johannsring 1Basel4056Switzerland
| | - Marcel Mayor
- Department of ChemistryUniversity of BaselCH‐St. Johannsring 1Basel4056Switzerland
- Institute of NanotechnologyKarlsruhe Institute of TechnologyHermann‐von‐Helmholtz‐Platz 1, 76344Eggenstein‐LeopoldshafenGermany
- Lehn Institute of Functional Materials (LIFM)Sun Yat‐Sen University (SYSU)XinGangXi Rd. 135, 510275GuangzhouChina
| | - Yaakov Y. Fein
- Faculty of PhysicsUniversity of ViennaBoltzmanngasse 5, 1090ViennaAustria
| | - Philipp Geyer
- Faculty of PhysicsUniversity of ViennaBoltzmanngasse 5, 1090ViennaAustria
| | - Lukas Mairhofer
- Faculty of PhysicsUniversity of ViennaBoltzmanngasse 5, 1090ViennaAustria
| | - Stefan Gerlich
- Faculty of PhysicsUniversity of ViennaBoltzmanngasse 5, 1090ViennaAustria
| | - Markus Arndt
- Faculty of PhysicsUniversity of ViennaBoltzmanngasse 5, 1090ViennaAustria
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