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Rydz J, Duale K, Sikorska W, Musioł M, Janeczek H, Marcinkowski A, Siwy M, Adamus G, Mielczarek P, Silberring J, Juszczyk J, Piętka E, Radecka I, Gupta A, Kowalczuk M. Oligopeptide-based molecular labelling of (bio)degradable polyester biomaterials. Int J Biol Macromol 2024; 268:131561. [PMID: 38621562 DOI: 10.1016/j.ijbiomac.2024.131561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
Nowadays, a very important motivation for the development of new functional materials for medical purposes is not only their performance but also whether they are environmentally friendly. In recent years, there has been a growing interest in the possibility of labelling (bio)degradable polymers, in particular those intended for specific applications, especially in the medical sector, and the potential of information storage in such polymers, making it possible, for example, to track the ultimate environmental fate of plastics. This article presents a straightforward green approach that combines both aspects using an oligopeptide, which is an integral part of polymer material, to store binary information in a physical mixture of polymer and oligopeptide. In the proposed procedure the year of production of polymer films made of poly(l-lactide) (PLLA) and a blend of poly(1,4-butylene adipate-co-1,4-butylene terephthalate) and polylactide (PBAT/PLA) were encoded as the sequence of the appropriate amino acids in the oligopeptide (PEP) added to these polymers. The decoding of the recorded information was carried out using mass spectrometry technique as a new method of decoding, which enabled the successful retrieval and reading of the stored information. Furthermore, the properties of labelled (bio)degradable polymer films and stability during biodegradation of PLLA/PEP film under industrial composting conditions have been investigated. The labelled films exhibited good oligopeptide stability, allowing the recorded information to be retrieved from a green polymer/oligopeptide system before and after biodegradation. The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide assay) study of the PLLA and PLLA/PBAT using the MRC-5 mammalian fibroblasts was presented for the first time.
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Affiliation(s)
- Joanna Rydz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland; Department of Food, Agricultural and Biological Engineering, The Ohio State University, Wooster 44691, OH, United States.
| | - Khadar Duale
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Wanda Sikorska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Marta Musioł
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Andrzej Marcinkowski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Mariola Siwy
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Grażyna Adamus
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland
| | - Przemysław Mielczarek
- Department of Analytical Chemistry and Biochemistry, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Kraków, Poland; Laboratory of Proteomics and Mass Spectrometry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Jerzy Silberring
- Department of Analytical Chemistry and Biochemistry, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Kraków, Poland
| | - Jan Juszczyk
- Department of Medical Informatics and Artificial Intelligence, Faculty of Biomedical Engineering, Silesian University of Technology, Roosevelta 40, 41-800 Zabrze, Poland
| | - Ewa Piętka
- Department of Medical Informatics and Artificial Intelligence, Faculty of Biomedical Engineering, Silesian University of Technology, Roosevelta 40, 41-800 Zabrze, Poland
| | - Iza Radecka
- School of Life Sciences, Faculty of Science and Engineering, University of Wolverhampton, Wulfruna St., Wolverhampton WV1 1LY, UK
| | - Abhishek Gupta
- School of Pharmacy, Faculty of Science and Engineering, University of Wolverhampton, City Campus, Wulfruna St., Wolverhampton WV1 1LY, UK
| | - Marek Kowalczuk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-800 Zabrze, Poland; School of Life Sciences, Faculty of Science and Engineering, University of Wolverhampton, Wulfruna St., Wolverhampton WV1 1LY, UK
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2
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Dossmann H, Fontaine L, Weisgerber T, Bonnet V, Monflier E, Ponchel A, Przybylski C. First Steps to Rationalize Host-Guest Interaction between α-, β-, and γ-Cyclodextrin and Divalent First-Row Transition and Post-transition Metals (Subgroups VIIB, VIIIB, and IIB). Inorg Chem 2021; 60:930-943. [PMID: 33375780 DOI: 10.1021/acs.inorgchem.0c03052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclodextrins (CDs) are cyclic oligosaccharides mainly composed of six, seven, and eight glucose units, so-called α-, β-, and γ-CDs, respectively. They own a very particular molecular structure exhibiting hydrophilic features thanks to primary and secondary rims and delimiting a hydrophobic internal cavity. The latter can encapsulate organic compounds, but the former can form supramolecular complexes by hydrogen-bonding or electrostatic interactions. CDs have been used in catalytic processes to increase mass transfer in aqueous-organic two-phase systems or to prepare catalysts. In the last case, interaction between CDs and metal salts was considered to be a key point in obtaining highly active catalysts. Up to now, no work was reported on the investigation of factors affecting the binding of metal to CD. In the study herein, we present the favorable combination of electrospray ionization coupled to mass spectrometry [ESI-MS(/MS)] and density functional theory molecular modeling [B3LYP/Def2-SV(P)] to delineate some determinants governing the coordination of first-row divalent transition metals (Mn2+, Co2+, Ni2+, Cu2+, and Fe2+) and one post-transition metal (Zn2+) with α-, β-, and γ-CDs. A large set of features concerning the metal itself (ionic radius, electron configuration, and spin state) as well as the complexes formed (the most stable conformer, relative abundance in MS, CE50 value in MS/MS, binding energy, effective coordination number, average bond lengths, binding site localization, bond dissociation energies, and natural bond orbital distribution) were screened. Taking into account all of these properties, various selectivity rankings have been delineated, portraying differential association/dissociation behaviors. Nonetheless, unique 3D topologies for each CD-metal complex were emphasized. The combination of these approaches brings a stone for building a compendium of molecular features to serve as a suitable descriptor or predictor for a better first round rationalization of catalytic activities.
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Affiliation(s)
- Héloïse Dossmann
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, F-75005 Paris, France
| | - Lucas Fontaine
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, Université de Picardie Jules Verne, CNRS, UMR 7378, 80039 Amiens, France
| | - Teddy Weisgerber
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, Université de Picardie Jules Verne, CNRS, UMR 7378, 80039 Amiens, France
| | - Véronique Bonnet
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, Université de Picardie Jules Verne, CNRS, UMR 7378, 80039 Amiens, France
| | - Eric Monflier
- Unité de Catalyse et Chimie du Solide, Université Artois, CNRS, Centrale Lille, Université Lille, UMR 8181, F-62300 Lens, France
| | - Anne Ponchel
- Unité de Catalyse et Chimie du Solide, Université Artois, CNRS, Centrale Lille, Université Lille, UMR 8181, F-62300 Lens, France
| | - Cédric Przybylski
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, F-75005 Paris, France
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Maroto A, Jeanne Dit Fouque D, Memboeuf A. Ion trap MS using high trapping gas pressure enables unequivocal structural analysis of three isobaric compounds in a mixture by using energy-resolved mass spectrometry and the survival yield technique. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4478. [PMID: 31834966 DOI: 10.1002/jms.4478] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Recently, it has been shown that energy-resolved mass spectrometry (MS) can provide quantitative information from two isomeric or isobaric compounds in mixtures by using the survival yield (SY) technique together with "gas-phase collisional purification" (GPCP) strategy (Anal. Chem., 2016, 88, p.10821). Herein, we present an improvement and an extension of this concept to the structural analysis of a model mixture of three isobaric compounds (two peptides and a polyether). By using default collision-induced dissociation (CID) tandem MS parameters on an ion trap instrument, the previous approach did not show any signs of isobaric contamination. However, by modifying CID conditions and using a threefold increase of the He trapping gas pressure (to reach 3.00·10-5 mbar), the SY curve was unexpectedly and strongly shifted to higher excitation voltages with two plateaus appearing. Those plateaus, indicating clearly the presence of three isobaric compounds, were taken as reliable indicators to perform GPCP at carefully selected excitation voltages in order to selectively fragment one compound after the other. In this way, CID mass spectra of each compound were correctly recovered, both in terms of fragment ion peaks and in terms of relative intensities, from energy-resolved MSn spectra of the three compounds mixture. This feature enables their unequivocal structural analysis as if samples were free from isobaric interferences. In this paper, we also discuss the possibility for recovering SY curves for pure compounds directly from the mixture. Clearly, in this case, the higher He trapping gas pressure made it possible to use the SY technique, for the first time, for the structural analysis in the case of mixtures of three isobaric compounds. This observation, quite unexpected, demonstrates that the trapping gas pressure is of paramount importance although it is usually not considered in energy-resolved MS for structural and/or quantitative analysis.
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Affiliation(s)
- Alicia Maroto
- CEMCA, Université de Brest, CNRS, Université Bretagne Loire, CS 93837, 6 Av. Le Gorgeu, Brest, 29238 Cedex 3, France
| | - Dany Jeanne Dit Fouque
- CEMCA, Université de Brest, CNRS, Université Bretagne Loire, CS 93837, 6 Av. Le Gorgeu, Brest, 29238 Cedex 3, France
| | - Antony Memboeuf
- CEMCA, Université de Brest, CNRS, Université Bretagne Loire, CS 93837, 6 Av. Le Gorgeu, Brest, 29238 Cedex 3, France
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Mao J, Zhang B, Zhang H, Elupula R, Grayson SM, Wesdemiotis C. Elucidating Branching Topology and Branch Lengths in Star-Branched Polymers by Tandem Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:1981-1991. [PMID: 31363988 DOI: 10.1007/s13361-019-02260-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/21/2019] [Accepted: 05/26/2019] [Indexed: 06/10/2023]
Abstract
Tandem mass spectrometry (MS2) has been employed to elucidate the topology and branching architecture of star-branched polyethers. The polymers were ionized by matrix-assisted laser desorption/ionization (MALDI) to positive ions and dissociated after leaving the ion source via laser-induced fragmentation. The bond scissions caused under MALDI-MS2 conditions occur preferentially near the core-branch joining points due to energetically favorable homolytic and heterolytic bond cleavages near the core and release of steric strain and/or reduction of crowding. This unique fragmentation mode detaches complete arms from the core generating fragment ion series at the expected molecular weight of each branch. The number of fragment ion distributions observed combined with their mass-to-charge ratios permit conclusive determination of the degree of branching and the corresponding branch lengths, as demonstrated for differently branched homo- and mikto-arm polyether stars synthesized via azide-alkyne click chemistry. The results of this study underscore the utility of MS2 for the characterization of branching architecture and branch lengths of (co) polymers with two or more linear chains attached to a functionalized central core.
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Affiliation(s)
- Jialin Mao
- Department of Chemistry, Knight Chemical Laboratory, The University of Akron, Akron, OH, 44325-3601, USA
| | - Boyu Zhang
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Hong Zhang
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Ravinder Elupula
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Scott M Grayson
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Chrys Wesdemiotis
- Department of Chemistry, Knight Chemical Laboratory, The University of Akron, Akron, OH, 44325-3601, USA.
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5
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Haler JRN, de la Rosa VR, Massonnet P, Far J, Hoogenboom R, De Pauw E. Fundamental Studies on Poly(2-oxazoline) Side Chain Isomers Using Tandem Mass Spectrometry and Ion Mobility-Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:1220-1228. [PMID: 30949970 DOI: 10.1007/s13361-019-02173-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 02/14/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
When polymer mixtures become increasingly complex, the conventional analysis techniques become insufficient for complete characterization. Mass spectrometric techniques can satisfy this increasing demand for detailed sample characterization. Even though isobaric polymers are indistinguishable using simple mass spectrometry (MS) analyses, more advanced techniques such as tandem MS (MS/MS) or ion mobility (IM) can be used. Here, we report proof of concept for characterizing isomeric polymers, namely poly(2-n-propyl-2-oxazoline) (Pn-PrOx) and poly(2-isopropyl-2-oxazoline) (Pi-PrOx), using MS/MS and IM-MS. Pi-PrOx ions lose in intensity at higher accelerating voltages than Pn-PrOx ions during collision-induced dissociation (CID) MS/MS experiments. A Pn/i-PrOx mixture could also be titrated using survival yield calculations of either precursor ions or cation ejection species. IM-MS yielded shape differences in the degree of polymerization (DP) regions showing the structural rearrangements. Combined MS techniques are thus able to identify and deconvolute the molar mass distributions of the two isomers in a mixture. Finally, the MS/MS and IM-MS behaviors are compared for interpretation. Graphical Abstract .
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Affiliation(s)
- Jean R N Haler
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium.
| | - Victor R de la Rosa
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium
| | - Philippe Massonnet
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium
| | - Johann Far
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium
| | - Edwin De Pauw
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium
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Haler JRN, Massonnet P, Far J, de la Rosa VR, Lecomte P, Hoogenboom R, Jérôme C, De Pauw E. Gas-Phase Dynamics of Collision Induced Unfolding, Collision Induced Dissociation, and Electron Transfer Dissociation-Activated Polymer Ions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:563-572. [PMID: 30523570 DOI: 10.1007/s13361-018-2115-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/24/2018] [Accepted: 11/24/2018] [Indexed: 06/09/2023]
Abstract
Polymer characterizations are often performed using mass spectrometry (MS). Aside from MS and different tandem MS (MS/MS) techniques, ion mobility-mass spectrometry (IM-MS) has been recently added to the inventory of characterization technique. However, only few studies have focused on the reproducibility and robustness of polymer IM-MS analyses. Here, we perform collisional and electron-mediated activation of polymer ions before measuring IM drift times, collision cross-sections (CCS), or reduced ion mobilities (K0). The resulting IM behavior of different activated product ions is then compared to non-activated native intact polymer ions. First, we analyzed collision induced unfolding (CIU) of precursor ions to test the robustness of polymer ion shapes. Then, we focused on fragmentation product ions to test for shape retentions from the precursor ions: cation ejection species (CES) and product ions with m/z and charge state values identical to native intact polymer ions. The CES species are formed using both collision induced dissociation (CID) and electron transfer dissociation (ETD, formally ETnoD) experiments. Only small drift time, CCS, or K0 deviations between the activated/formed ions are observed compared to the native intact polymer ions. The polymer ion shapes seem to depend solely on their mass and charge state. The experiments were performed on three synthetic homopolymers: poly(ethoxy phosphate) (PEtP), poly(2-n-propyl-2-oxazoline) (Pn-PrOx), and poly(ethylene oxide) (PEO). These results confirm the robustness of polymer ion CCSs for IM calibration, especially singly charged polymer ions. The results are also discussed in the context of polymer analyses, CCS predictions, and probing ion-drift gas interaction potentials. Graphical Abstract.
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Affiliation(s)
- Jean R N Haler
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium.
| | - Philippe Massonnet
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium
| | - Johann Far
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium
| | - Victor R de la Rosa
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium
| | - Philippe Lecomte
- Center for Education and Research on Macromolecules, CESAM Research Unit, Quartier Agora, University of Liège, Allée du Six Aout 13, B-4000, Liège, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium
| | - Christine Jérôme
- Center for Education and Research on Macromolecules, CESAM Research Unit, Quartier Agora, University of Liège, Allée du Six Aout 13, B-4000, Liège, Belgium
| | - Edwin De Pauw
- Mass Spectrometry Laboratory, MolSys Research unit, Quartier Agora, University of Liège, Allée du Six Aout 11, B-4000, Liège, Belgium
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Jeanne Dit Fouque D, Maroto A, Memboeuf A. Internal Standard Quantification Using Tandem Mass Spectrometry of a Tryptic Peptide in the Presence of an Isobaric Interference. Anal Chem 2018; 90:14126-14130. [PMID: 30462486 DOI: 10.1021/acs.analchem.8b05016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Model mixtures of isobaric peptides were studied to evaluate the possibility, using tandem mass spectrometry experiments, for internal standard quantification of a tryptic peptide in the presence of an isobaric interference. To this end, direct injection electrospray ionization-tandem mass spectrometry (ESI-MS/MS) experiments were performed on an ion trap instrument using a large mass-selection window (15 m/ z) encompassing the isobaric mixture and the internal standard; MS/MS experiments were carried out to remove completely the interference from the mixture by fragmenting it. This allowed for the correct intensity assignment for the protonated peptide peak and, thus, for the analyte to be quantified through the relative intensity estimate of this peak with respect to the internal standard. This was done by monitoring the 15 m/ z mass-selection window only and without the necessity for careful inspection of any fragment ions peaks. The interference removal was assessed by determining an excitation voltage large enough for the analyte/internal standard ratio to remain constant ensuring correct quantification despite isobaric contamination. A calibration curve was obtained to predict reference samples and compared to reference samples purposely spiked with the interference using the proposed methodology; internal standard quantification of the analyte was made possible with ∼1% deviation despite the isobaric contamination.
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Affiliation(s)
- Dany Jeanne Dit Fouque
- CEMCA, Université de Brest, CNRS, Université Bretagne Loire, CS 93837, 6 Av. Le Gorgeu , Brest 29238 Cedex 3, France
| | - Alicia Maroto
- CEMCA, Université de Brest, CNRS, Université Bretagne Loire, CS 93837, 6 Av. Le Gorgeu , Brest 29238 Cedex 3, France
| | - Antony Memboeuf
- CEMCA, Université de Brest, CNRS, Université Bretagne Loire, CS 93837, 6 Av. Le Gorgeu , Brest 29238 Cedex 3, France
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Jeanne Dit Fouque D, Lartia R, Maroto A, Memboeuf A. Quantification of intramolecular click chemistry modified synthetic peptide isomers in mixtures using tandem mass spectrometry and the survival yield technique. Anal Bioanal Chem 2018; 410:5765-5777. [DOI: 10.1007/s00216-018-1258-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/10/2018] [Indexed: 10/28/2022]
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9
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Chen X, Kang Y, Zeng S. Analysis of stereoisomers of chiral drug by mass spectrometry. Chirality 2018; 30:609-618. [DOI: 10.1002/chir.22833] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/02/2018] [Accepted: 01/15/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Xiaolei Chen
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences, Zhejiang University; Hangzhou Zhejiang China
| | - Yu Kang
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences, Zhejiang University; Hangzhou Zhejiang China
| | - Su Zeng
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences, Zhejiang University; Hangzhou Zhejiang China
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10
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Kuki Á, Nagy L, Zsuga M, Kéki S. An approach to estimate the activation energies of fragmentation occurring in quadrupole collision cell of the mass spectrometer. JOURNAL OF MASS SPECTROMETRY : JMS 2017; 52:672-680. [PMID: 28732136 DOI: 10.1002/jms.3971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/10/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
The classical semi-quantitative Rice-Ramsperger-Kassel (RRK) theory was used for the calculation of the internal energy dependent reaction rate coefficient of the collision-induced dissociation (CID) reaction in tandem mass spectrometry (MS/MS). The survival yield (SY) was determined by the reaction rate equation for the unimolecular dissociation of the precursor ion. The parameters of the rate equation and the RRK model were approximated based on the instrumental conditions. We used the RRK equation for the description of the basic behavior of the fragmentation reactions and for the estimation of the internal energy of the precursor ion. The critical energies for fragmentation (Eo ) of various molecules were estimated and compared with those reported in the literature. The model was extended by taking into account the initial internal energy distribution of the ions created in the ion source. It must be emphasized that our approach provides only a crude estimate for Eo .
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Affiliation(s)
- Ákos Kuki
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary
| | - Lajos Nagy
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary
| | - Miklós Zsuga
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary
| | - Sándor Kéki
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary
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Wesdemiotis C. Multidimensional Mass Spectrometry of Synthetic Polymers and Advanced Materials. Angew Chem Int Ed Engl 2017; 56:1452-1464. [PMID: 27712048 DOI: 10.1002/anie.201607003] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/02/2016] [Indexed: 01/06/2023]
Abstract
Multidimensional mass spectrometry interfaces a suitable ionization technique and mass analysis (MS) with fragmentation by tandem mass spectrometry (MS2 ) and an orthogonal online separation method. Separation choices include liquid chromatography (LC) and ion-mobility spectrometry (IMS), in which separation takes place pre-ionization in the solution state or post-ionization in the gas phase, respectively. The MS step provides elemental composition information, while MS2 exploits differences in the bond stabilities of a polymer, yielding connectivity and sequence information. LC conditions can be tuned to separate by polarity, end-group functionality, or hydrodynamic volume, whereas IMS adds selectivity by macromolecular shape and architecture. This Minireview discusses how selected combinations of the MS, MS2 , LC, and IMS dimensions can be applied, together with the appropriate ionization method, to determine the constituents, structures, end groups, sequences, and architectures of a wide variety of homo- and copolymeric materials, including multicomponent blends, supramolecular assemblies, novel hybrid materials, and large cross-linked or nonionizable polymers.
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Affiliation(s)
- Chrys Wesdemiotis
- Department of Chemistry, The University of Akron, Akron, OH, 44325, USA
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12
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Wesdemiotis C. Mehrdimensionale Massenspektrometrie von synthetischen Polymeren und modernen Materialien. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chrys Wesdemiotis
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
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Jeanne Dit Fouque D, Maroto A, Memboeuf A. Purification and Quantification of an Isomeric Compound in a Mixture by Collisional Excitation in Multistage Mass Spectrometry Experiments. Anal Chem 2016; 88:10821-10825. [PMID: 27805355 DOI: 10.1021/acs.analchem.6b03490] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The differentiation, characterization, and quantification of isomers and/or isobars in mixtures is a recurrent problem in mass spectrometry and more generally in analytical chemistry. Here we present a new strategy to assess the purity of a compound that is susceptible to be contaminated with another isomeric side-product in trace levels. Providing one of the isomers is available as pure sample, this new strategy allows the detection of isomeric contamination. This is done thanks to a "gas-phase collisional purification" inside an ion trap mass spectrometer paving the way for an improved analysis of at least similar samples. This strategy consists in using collision induced dissociation (CID) multistage mass spectrometry (MS2 and MS3) experiments and the survival yield (SY) technique. It has been successfully applied to mixtures of cyclic poly(L-lactide) (PLA) with increasing amounts of its linear topological isomer. Purification in gas phase of PLA mixtures was established based on SY curves obtained in MS3 mode: all samples gave rise to the same SY curve corresponding then to the pure cyclic component. This new strategy was sensitive enough to detect traces of linear PLA (<3%) in a sample of cyclic PLA that was supposedly pure according to other characterization techniques (1H NMR, MALDI-HRMS, and size-exclusion chromatography). Moreover, in this case, the presence of linear isomer was undetectable according to MS/MS or MS/MS/MS analysis only as fragment ions are also of the same m/z values. This type of approach could easily be implemented in hyphenated mass spectrometric techniques to improve the structural and quantitative analysis of complex samples.
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Affiliation(s)
- Dany Jeanne Dit Fouque
- UMR CNRS 6521, CEMCA, Université de Bretagne Occidentale , 6 Av. Le Gorgeu, 29238 Brest Cedex 3, France
| | - Alicia Maroto
- UMR CNRS 6521, CEMCA, Université de Bretagne Occidentale , 6 Av. Le Gorgeu, 29238 Brest Cedex 3, France
| | - Antony Memboeuf
- UMR CNRS 6521, CEMCA, Université de Bretagne Occidentale , 6 Av. Le Gorgeu, 29238 Brest Cedex 3, France
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14
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Nagy L, Kuki Á, Deák G, Purgel M, Vékony Á, Zsuga M, Kéki S. Gas-Phase Interaction of Anions with Polyisobutylenes: Collision-Induced Dissociation Study and Quantum Chemical Modeling. J Phys Chem B 2016; 120:9195-203. [PMID: 27483334 DOI: 10.1021/acs.jpcb.6b05655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The gas-phase interaction of anions including fluoride, chloride, bromide, iodide, ethyl sulfate, chlorate, and nitrate with polyisobutylene (PIB) derivatives was studied using collision-induced dissociation (CID). The gas-phase adducts of anions with PIBs ([PIB + anion](-)) were generated from the electrosprayed solution of PIBs in the presence of the corresponding anions. The so-formed adducts subjected to CID showed a loss of anion at different characteristic collision energies, thus allowing the study of the strength of interaction between the anions and nonpolar PIBs having different end-groups. The values of characteristic collision energies (the energy needed to obtain 50% fragmentation) obtained by CID experiments correlated linearly with the binding enthalpies between the anion and PIB, as determined by density functional theory calculations. In the case of halide ions, the critical energies for dissociation, that is, the binding enthalpies for [PIB + anion](-) adducts, increased in the order of I(-) < Br(-) < Cl(-) < F(-). Furthermore, it was found that the binding enthalpies for the adducts formed with halide ions decreased approximately with the square radius of the halide ion, suggesting that the strength of interaction is mainly determined by the "surface" charge density of the halide ion. In addition, the characteristic collision energy versus the number of isobutylene units revealed a linear dependence.
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Affiliation(s)
- Lajos Nagy
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Ákos Kuki
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
| | - György Deák
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Mihály Purgel
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Ádám Vékony
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Miklós Zsuga
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Sándor Kéki
- Department of Applied Chemistry and ‡Department of Physical Chemistry, MTA-DE Homogeneous Catalysis and Reaction Mechanisms Research Group, University of Debrecen , Egyetem tér 1, H-4032 Debrecen, Hungary
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15
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Przybylski C, Benito JM, Bonnet V, Mellet CO, García Fernández JM. Deciphering of polycationic carbohydrate based non-viral gene delivery agents by ESI-LTQ-Orbitrap using CID/HCD pairwise tandem mass spectrometry. RSC Adv 2016. [DOI: 10.1039/c6ra14508f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the study herein, we demonstrated that ESI-(MS)MS combining CID and HCD is a useful tool for the structural deciphering of five representative members of a polycationic cyclodextrin library used as non viral agents for gene delivery.
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Affiliation(s)
- Cédric Przybylski
- Université d’Evry-Val-d’Essonne
- Laboratoire Analyse et Modélisation pour la Biologie et l’Environnement
- CNRS UMR 8587
- F-91025 Evry
- France
| | - Juan M. Benito
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- E-41092 Sevilla
- Spain
| | - Véronique Bonnet
- Université de Picardie Jules Verne
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources
- CNRS UMR 7378
- 80039 Amiens
- France
| | - Carmen Ortiz Mellet
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de Sevilla
- E-41012 Sevilla
- Spain
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16
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Bongiorno D, Ceraulo L, Indelicato S, Turco Liveri V, Indelicato S. Charged supramolecular assemblies of surfactant molecules in gas phase. MASS SPECTROMETRY REVIEWS 2016; 35:170-187. [PMID: 26113001 DOI: 10.1002/mas.21476] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Indexed: 06/04/2023]
Abstract
The aim of this review is to critically analyze recent literature on charged supramolecular assemblies formed by surfactant molecules in gas phase. Apart our specific interest on this research area, the stimuli to undertake the task arise from the widespread theoretical and applicative benefits emerging from a comprehensive view of this topic. In fact, the study of the formation, stability, and physicochemical peculiarities of non-covalent assemblies of surfactant molecules in gas phase allows to unveil interesting aspects such as the role of attractive, repulsive, and steric intermolecular interactions as driving force of supramolecular organization in absence of interactions with surrounding medium and the size and charge state dependence of aggregate structural and dynamical properties. Other interesting aspects worth to be investigated are joined to the ability of these assemblies to incorporate selected solubilizates molecules as well as to give rise to chemical reactions within a single organized structure. In particular, the incorporation of large molecules such as proteins has been of recent interest with the objective to protect their structure and functionality during the transition from solution to gas phase. Exciting fall-out of the study of gas phase surfactant aggregates includes mass and energy transport in the atmosphere, origin of life and simulation of supramolecular aggregation in the interstellar space. Moreover, supramolecular assemblies of amphiphilic molecules in gas phase could find remarkable applications as atmospheric cleaning agents, nanosolvents and nanoreactors for specialized chemical processes in confined space. Mass spectrometry techniques have proven to be particularly suitable to generate these assemblies and to furnish useful information on their size, size polydispersity, stability, and structural organization. On the other hand molecular dynamics simulations have been very useful to rationalize many experimental findings and to furnish a vivid picture of the structural and dynamic features of these aggregates. Thus, in this review, we will focus on the most important achievements gained in recent years by both these investigative tools.
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Affiliation(s)
- David Bongiorno
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, I-90123, Palermo, Italy
- Centro Grandi Apparecchiature-UniNetLab, Università degli Studi di Palermo, Via Marini 14, I-90128, Palermo, Italy
| | - Leopoldo Ceraulo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, I-90123, Palermo, Italy
- Centro Grandi Apparecchiature-UniNetLab, Università degli Studi di Palermo, Via Marini 14, I-90128, Palermo, Italy
| | - Sergio Indelicato
- Core Laboratory of Quality control and Chemical Risk, Policlinico P. Giaccone, Università di Palermo, via del Vespro 129, I-90127, Palermo, Italy
| | - Vincenzo Turco Liveri
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, I-90123, Palermo, Italy
| | - Serena Indelicato
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, I-90123, Palermo, Italy
- Centro Grandi Apparecchiature-UniNetLab, Università degli Studi di Palermo, Via Marini 14, I-90128, Palermo, Italy
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17
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Kowalczuk M, Adamus G. Mass spectrometry for the elucidation of the subtle molecular structure of biodegradable polymers and their degradation products. MASS SPECTROMETRY REVIEWS 2016; 35:188-198. [PMID: 25869251 DOI: 10.1002/mas.21474] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Indexed: 06/04/2023]
Abstract
Contemporary reports by Polish authors on the application of mass spectrometric methods for the elucidation of the subtle molecular structure of biodegradable polymers and their degradation products will be presented. Special emphasis will be given to natural aliphatic (co)polyesters (PHA) and their synthetic analogues, formed through anionic ring-opening polymerization (ROP) of β-substituted β-lactones. Moreover, the application of MS techniques for the evaluation of the structure of biodegradable polymers obtained in ionic and coordination polymerization of cyclic ethers and esters as well as products of step-growth polymerization, in which bifunctional or multifunctional monomers react to form oligomers and eventually long chain polymers, will be discussed. Furthermore, the application of modern MS techniques for the assessment of polymer degradation products, frequently bearing characteristic end groups that can be revealed and differentiated by MS, will be discussed within the context of specific degradation pathways. Finally, recent Polish accomplishments in the area of mass spectrometry will be outlined.
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Affiliation(s)
- Marek Kowalczuk
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, 34. M. Curie-Skłodowska St., Zabrze, 41-800, Poland
- School of Biology, Chemistry and Forensic Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, WV1 1SB, UK
| | - Grażyna Adamus
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, 34. M. Curie-Skłodowska St., Zabrze, 41-800, Poland
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18
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Przybylski C, Bonnet V, Cézard C. Probing the common alkali metal affinity of native and variously methylated β-cyclodextrins by combining electrospray-tandem mass spectrometry and molecular modeling. Phys Chem Chem Phys 2015; 17:19288-305. [PMID: 26138713 DOI: 10.1039/c5cp02895g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In the study herein, we investigated the solution and gas phase affinity of native and variously methylated β-cyclodextrins (CDs) as hosts towards three common alkali metals as guests namely lithium, sodium and potassium. For this purpose, two complementary approaches have been employed: electrospray-tandem mass spectrometry (ESI-MS/MS) with two energetic regimes: Collision Induced Dissociation (CID) and Higher Collision Dissociation (HCD), respectively, and DFT molecular modeling. These approaches have been achieved by taking into account the interaction of either one or two alkali metals with the host molecules. The results showed a good agreement between experimental and theoretical data. It was demonstrated that increasing the methylation degree strengthened the gas phase affinity towards all studied alkali metals. Furthermore, it was established that the cation selectivity was Na(+) > Li(+) > K(+) and Li(+) > Na(+) > K(+) for the solution and gas phase, respectively.
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Affiliation(s)
- Cédric Przybylski
- Université d'Evry-Val-d'Essonne, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, CNRS UMR 8587, Bâtiment Maupertuis, Bld F. Mitterrand, F-91025 Evry, France.
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19
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“Polymeromics”: Mass spectrometry based strategies in polymer science toward complete sequencing approaches: A review. Anal Chim Acta 2014; 808:56-69. [DOI: 10.1016/j.aca.2013.10.027] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/07/2013] [Accepted: 10/11/2013] [Indexed: 11/23/2022]
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20
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Altuntas E, Weber C, Schubert US. Detailed characterization of poly(2-ethyl-2oxazoline)s by energy variable collision-induced dissociation study. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:1095-1100. [PMID: 23592113 DOI: 10.1002/rcm.6542] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 02/08/2013] [Accepted: 02/11/2013] [Indexed: 06/02/2023]
Abstract
RATIONALE Poly(2-oxazoline)s are important polymers and can be considered as pseudo-peptides which makes them important for biomedical and life science applications. This prompts the need for a detailed characterization of these polymers via different analytical tools such as mass spectrometry. Here, the energy-variable collision-induced dissociation (CID) of poly(2-ethyl-2-oxazoline)s was studied by electrospray ionization quadrupole time-of-flight tandem mass spectrometry (ESI-QTOFMS/MS) to gain further structural information about this polymer type. METHODS All polymers were analyzed using manual flow injection of samples into an ESI-QTOF mass spectrometer. Mass spectra (MS and MS/MS) were obtained in the positive ion mode over a mass-to-charge (m/z) range from 50 to 3000. RESULTS The dependency of the fragmentation patterns as a function of collision energy was examined and the characteristic collision energy (CCE or CE50 ) values for various poly(2-ethyl-2-oxazoline)s with different end-groups were calculated. The effect of molar masses on the CCE values was investigated via the survival yield (SY) method and a linear relationship between CCE values and the degree of polymerization for the PEtOx polymers was observed. CONCLUSIONS This study showed that ESI-MS/MS is very useful for differentiating poly(2-ethyl-2-oxazoline)s with different end-groups by varying the collision energy. The SY method has the potential to determine the importance of the end-groups on the fragmentation behavior of this polymer type.
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Affiliation(s)
- Esra Altuntas
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany
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21
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Indelicato S, Bongiorno D, Indelicato S, Drahos L, Turco Liveri V, Turiák L, Vékey K, Ceraulo L. Degrees of freedom effect on fragmentation in tandem mass spectrometry of singly charged supramolecular aggregates of sodium sulfonates. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:379-383. [PMID: 23494795 DOI: 10.1002/jms.3161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 11/08/2012] [Accepted: 12/20/2012] [Indexed: 06/01/2023]
Abstract
The characteristic collision energy (CCE) to obtain 50% fragmentation of positively and negatively single charged noncovalent clusters has been measured. CCE was found to increase linearly with the degrees of freedom (DoF) of the precursor ion, analogously to that observed for synthetic polymers. This suggests that fragmentation behavior (e.g. energy randomization) in covalent molecules and clusters are similar. Analysis of the slope of CCE with molecular size (DoF) indicates that activation energy of fragmentation of these clusters (loss of a monomer unit) is similar to that of the lowest energy fragmentation of protonated leucine-enkephalin. Positively and negatively charged aggregates behave similarly, but the slope of the CCE versus DoF plot is steeper for positive ions, suggesting that these are more stable than their negative counterparts.
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Affiliation(s)
- Serena Indelicato
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, Università degli Studi di Palermo, V.le delle Scienze-Ed, 16-90128, Palermo, Italy
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22
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Ichou F, Lesage D, Machuron-Mandard X, Junot C, Cole RB, Tabet JC. Collision cell pressure effect on CID spectra pattern using triple quadrupole instruments: a RRKM modeling. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:179-186. [PMID: 23378090 DOI: 10.1002/jms.3143] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 11/09/2012] [Accepted: 11/17/2012] [Indexed: 06/01/2023]
Abstract
Control of the ion internal energy in mass spectrometry is needed to establish a workable mass spectral library. The purpose of this study is to understand and to compare the pressure effects on the collision-induced dissociation (CID) spectrum pattern recorded using triple quadrupole instruments. The monoprotonated Leucine enkephalin [YGGFL, H(+)] was used as a thermometer molecule to calibrate the electrospray ionization (ESI) and the CID internal energies deposited on the molecular species and the time scale of ion decompositions. The survival yield and the ratio of a(4)/b(4) fragment ions were mainly monitored. The energy uptake for the ESI source geometry used in our study has no impact on the CID spectrum fingerprint. The collision cell pressure for the [YGGFL, H(+)] has a major influence on the SY curves slope and on the experimental time scale. To demonstrate the pressure effect on internal energy distribution, three models (threshold, thermal and collisional) based on RRKM theory were built using the Masskinetics software. As a result, the limit of each model is discussed, and the investigation demonstrates that the thermal model, using truncated Maxwell-Boltzmann internal energy distribution, is well-suited for simulating the experimental data at high pressure widely used in the analytical conditions.
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Affiliation(s)
- Farid Ichou
- UPMC, Institut Parisien de Chimie Moléculaire, UMR 7201, Paris VI, 75252, Paris cedex 05, France
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23
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Przybylski C, Bonnet V. Discrimination of cyclic and linear oligosaccharides by tandem mass spectrometry using collision-induced dissociation (CID), pulsed-Q-dissociation (PQD) and the higher-energy C-trap dissociation modes. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:75-87. [PMID: 23239319 DOI: 10.1002/rcm.6422] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 09/02/2012] [Accepted: 09/28/2012] [Indexed: 06/01/2023]
Abstract
RATIONALE Carbohydrates have essential functions in living organisms and cells, but, due to the presence of numerous linkage combinations, substituent sites and possible conformations, they are the class of biomolecules which exhibits the huge structural diversity found in nature. Thereby, due to such diversity and poor ionization, their structural deciphering by mass spectrometry is still a very challenging task. METHODS Here, we studied a series of linear and cyclic neutral oligosaccharides using electrospray with collision-induced dissociation (CID), pulsed-Q-dissociation (PQD) and the higher-energy C-trap dissociation (HCD) feature of a linear ion trap Orbitrap hybrid mass spectrometer (LTQ-Orbitrap). The collision energy necessary to obtain 50% fragmentation (CE(50) values) in CID, PQD and HCD was used to correlate both size and structures. RESULTS The default settings for activation time and/or activation Q are the most appropriate, except for HCD, where 100 ms instead of 30 ms gave more intense fragment ions. PQD exhibits a 2-8-fold lower sensitivity than CID. HCD provides signals closer or slightly superior by 1.5-fold than PQD, and offers a more balanced ion distribution through the spectrum. Furthermore, HCD offers the possibility to make fine adjustments of the energy via the eV scale to further increase the yield of low-mass fragments. CONCLUSIONS The complementarity of CID, PQD and HCD was clearly demonstrated by obtaining structural information on hexa-, hepta- and octasaccharides. Together, these results clearly indicate the usefulness of the CID/HCD pair for further structural deciphering, and analysis of more complex structures such as multi-antennary carbohydrates or glycoconjuguates alone or in mixture.
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Affiliation(s)
- Cédric Przybylski
- Université d'Evry-Val-d'Essonne, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, CNRS UMR 8587, F-91025, Evry, France.
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Memboeuf A, Jullien L, Lartia R, Brasme B, Gimbert Y. Tandem mass spectrometric analysis of a mixture of isobars using the survival yield technique. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:1744-1752. [PMID: 21952888 DOI: 10.1007/s13361-011-0195-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 06/08/2011] [Accepted: 06/12/2011] [Indexed: 05/31/2023]
Abstract
Collision induced dissociation tandem mass spectrometry experiments were performed to unequivocally separate compounds from an isobaric mixture of two products. The Survival Yield curve was obtained and is shown to consist in a linear combination of the curves corresponding to the two components separately. For such a mixture, a plateau appears on the diagram in lieu of the continuous decrease expected allowing for the structural study of the two components separately. The width of the plateau critically relates to the fragmentation parameters of the two molecular ions, which need to be sufficiently different structurally for the plateau to be observed. However, at constant fragmentation parameters, we have observed the width significantly increases at large m/z. This makes the separation more and more efficient as isobars have larger m/z and the technique complementary to those applicable at low m/z only. We have observed that the vertical position of the plateau relates linearly to the relative concentration of the two compounds that may be useful for quantification. Repeatability was estimated at 2% on a quadrupole ion trap. An advantage of using survival yield curves only, is that a priori knowledge of the respective fragmentation patterns of the two isobars becomes unnecessary. Consequently, similar performances are obtained if fragments are isobaric, which is also demonstrated in our study. The critical case of reverse peptides, at low m/z and similar fragmentation parameters, is also presented as a limitation of the method.
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Affiliation(s)
- Antony Memboeuf
- Département de Chimie Moléculaire, UMR 5250-ICMG-FR 2607, CNRS Université Joseph Fourier, BP 53, 38041 Grenoble, Cedex 9, France.
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25
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Nasioudis A, Heeren RMA, van Doormalen I, de Wijs-Rot N, van den Brink OF. Electrospray ionization tandem mass spectrometry of ammonium cationized polyethers. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:837-844. [PMID: 21472518 DOI: 10.1007/s13361-011-0101-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 01/22/2011] [Accepted: 02/03/2011] [Indexed: 05/30/2023]
Abstract
Quaternary ammonium salts (Quats) and amines are known to facilitate the MS analysis of high molar mass polyethers by forming low charge state adduct ions. The formation, stability, and behavior upon collision-induced dissociation (CID) of adduct ions of polyethers with a variety of Quats and amines were studied by electrospray ionization quadrupole time-of-flight, quadrupole ion trap, and linear ion trap tandem mass spectrometry (MS/MS). The linear ion trap instrument was part of an Orbitrap hybrid mass spectrometer that allowed accurate mass MS/MS measurements. The Quats and amines studied were of different degree of substitution, structure, and size. The stability of the adduct ions was related to the structure of the cation, especially the amine's degree of substitution. CID of singly/doubly charged primary and tertiary ammonium cationized polymers resulted in the neutral loss of the amine followed by fragmentation of the protonated product ions. The latter reveals information about the monomer unit, polymer sequence, and endgroup structure. In addition, the detection of product ions retaining the ammonium ion was observed. The predominant process in the CID of singly charged quaternary ammonium cationized polymers was cation detachment, whereas their doubly charged adduct ions provided the same information as the primary and tertiary ammonium cationized adduct ions. This study shows the potential of specific amines as tools for the structural elucidation of high molar mass polyethers.
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Affiliation(s)
- Andreas Nasioudis
- AkzoNobel Research, Development and Innovation, P.O. Box 10, 7400 AA, Deventer, The Netherlands
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