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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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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3
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Berenbeim JA, Wong NGK, Cockett MCR, Berden G, Oomens J, Rijs AM, Dessent CEH. Unravelling the Keto-Enol Tautomer Dependent Photochemistry and Degradation Pathways of the Protonated UVA Filter Avobenzone. J Phys Chem A 2020; 124:2919-2930. [PMID: 32208697 PMCID: PMC7168606 DOI: 10.1021/acs.jpca.0c01295] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
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Avobenzone (AB) is
a widely used UVA filter known to undergo irreversible
photodegradation. Here, we investigate the detailed pathways by which
AB photodegrades by applying UV laser-interfaced mass spectrometry
to protonated AB ions. Gas-phase infrared multiple-photon dissociation
(IRMPD) spectra obtained with the free electron laser for infrared
experiments, FELIX, (600–1800 cm–1) are also
presented to confirm the geometric structures. The UV gas-phase absorption
spectrum (2.5–5 eV) of protonated AB contains bands that correspond
to selective excitation of either the enol or diketo forms, allowing
us to probe the resulting, tautomer-dependent photochemistry. Numerous
photofragments (i.e., photodegradants) are directly identified for
the first time, with m/z 135 and
161 dominating, and m/z 146 and
177 also appearing prominently. Analysis of the production spectra
of these photofragments reveals that that strong enol to keto photoisomerism
is occurring, and that protonation significantly disrupts the stability
of the enol (UVA active) tautomer. Close comparison of fragment ion
yields with the TD-DFT-calculated absorption spectra give detailed
information on the location and identity of the dissociative excited
state surfaces, and thus provide new insight into the photodegradation
pathways of avobenzone, and photoisomerization of the wider class
of β-diketone containing molecules.
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Affiliation(s)
- Jacob A Berenbeim
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Natalie G K Wong
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Martin C R Cockett
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Giel Berden
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen, 6500 HC, The Netherlands
| | - Jos Oomens
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen, 6500 HC, The Netherlands
| | - Anouk M Rijs
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen, 6500 HC, The Netherlands
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Guan ZY, Wu CY, Chen TY, Huang ST, Chiang YC, Chen HY. Clickable and Photo-Erasable Surface Functionalities by Using Vapor-Deposited Polymer Coatings. ACS Biomater Sci Eng 2019; 5:1753-1761. [PMID: 33405551 DOI: 10.1021/acsbiomaterials.9b00142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A prospective design for interface properties is enabled to perform precise functionalization, erasure capability for existing properties, reactivation of surface functionality to a second divergent property. A vapor-deposited, 2-nitro-5-(prop-2-yn-1-yloxy)methylbenzyl carbamate-functionalized poly-para-xylylene coating is synthesized in this study to realize such tasks by offering the accessibility of the azide/alkyne click reaction, an integrated photochemical decomposition/cleavage moiety, and the reactivation sites of amines behind the cleavage that allow the installation of a second surface function. With the benefits from the mild processing conditions used for the coatings and the rapid response of the photochemical reaction, the creation of sophisticated interface properties and localized chemical compositions was elegantly demonstrated with a hybrid functionality including a confined hydrophlic/hydrophobic wetting property and/or a cell adherent/repellent platform on such a coating surface.
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Affiliation(s)
| | | | - Ting-Yo Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Sheng-Tung Huang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Yu-Chih Chiang
- School of Dentistry and Graduate Institute of Clinical Dentistry, National Taiwan University and National Taiwan University Hospital, Taipei 10048, Taiwan
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Schätti J, Kriegleder M, Debiossac M, Kerschbaum M, Geyer P, Mayor M, Arndt M, Köhler V. Neutralization of insulin by photocleavage under high vacuum. Chem Commun (Camb) 2019; 55:12507-12510. [DOI: 10.1039/c9cc05712a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrosprayed peptide ion beams are charge manipulated by photocleavage of chemical tags.
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Affiliation(s)
- Jonas Schätti
- Department of Chemistry
- University of Basel
- CH Basel
- Switzerland
| | | | | | | | - Philipp Geyer
- Faculty of Physics
- University of Vienna
- A-1090 Vienna
- Austria
| | - Marcel Mayor
- Department of Chemistry
- University of Basel
- CH Basel
- Switzerland
- Institute of Nanotechnology
| | - Markus Arndt
- Faculty of Physics
- University of Vienna
- A-1090 Vienna
- Austria
| | - Valentin Köhler
- Department of Chemistry
- University of Basel
- CH Basel
- Switzerland
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6
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Mairhofer L, Eibenberger S, Shayeghi A, Arndt M. A Quantum Ruler for Magnetic Deflectometry. ENTROPY 2018; 20:e20070516. [PMID: 33265606 PMCID: PMC7513036 DOI: 10.3390/e20070516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/04/2018] [Accepted: 07/06/2018] [Indexed: 12/31/2022]
Abstract
Matter-wave near-field interference can imprint a nano-scale fringe pattern onto a molecular beam, which allows observing its shifts in the presence of even very small external forces. Here we demonstrate quantum interference of the pre-vitamin 7-dehydrocholesterol and discuss the conceptual challenges of magnetic deflectometry in a near-field interferometer as a tool to explore photochemical processes within molecules whose center of mass is quantum delocalized.
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Affiliation(s)
- Lukas Mairhofer
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Wien, Austria
| | - Sandra Eibenberger
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Armin Shayeghi
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Wien, Austria
| | - Markus Arndt
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Wien, Austria
- Correspondence: ; Tel.: +43-1-4277-51210
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