1
|
Ma Y, Zhu M, Zhang Y, Gao E, Wu S. A multiemissive lanthanide metal-organic framework for selective detection of L-tryptophan. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
2
|
Sun HX, Zhou J, Zhang Z, He M, He LC, Du L, Xie MJ, Zhao QH. Anion-controlled Zn(II) coordination polymers with 1-(tetrazo-5-yl)-3-(triazo-1-yl) benzene as an assembling ligand: synthesis, characterization, and efficient detection of tryptophan in water. Dalton Trans 2021; 50:18044-18052. [PMID: 34826320 DOI: 10.1039/d1dt03045k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Tryptophan regulates and participates in various physiological systems in the human body, and its excessive intake has harmful effects. Therefore, detecting and monitoring tryptophan in water and distinguishing it from other amino acids are necessary. In addition to their excellent luminescence, coordination polymer-based sensors have good stability and high sensitivity and selectivity for sensing applications. In this work, two luminescent coordination polymers (CPs), [Zn(ttb)Cl]n (1) and [Zn2(ttb)2(OH)(NO3)]n (2), were obtained through the solvothermal reaction of different Zn(II) salts with a rarely studied multidentate N-donor ligand, 1-(tetrazo-5-yl)-3-(triazo-1-yl) benzene (Httb). Crystallographic investigations revealed that the structure of 1 exhibits a 2D fes net with Cl- anions acting as terminal charge balancers, and that of 2 features a 3D ant net with NO3- anions in a rare monodentate bridging (μ2-O-η1:η1) mode. In terms of stability tests, 2 has better thermal and water stability than 1. Although both show good fluorescence performance, specific tryptophan detection, and excellent anti-interference ability, 2 has higher KSV (111 852.6 M-1), a lower limit of detection (LOD = 23.6 nM), and a better recovery rate than 1. Cytotoxicity experiments proved that 2 has extremely low toxicity and thus has great potential for in vivo detection. Therefore, CP 2 is a suitable candidate for advanced practical applications for the efficient sensing of tryptophan in water. The luminescence of the ligands was also calculated using DFT theory and further discussed through experiments. The quenching mechanism that occurs after tryptophan addition was explored through Hirshfeld surface analysis.
Collapse
Affiliation(s)
- Han-Xu Sun
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Jie Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Zhen Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Mei He
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Lian-Cheng He
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Lin Du
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Ming-Jin Xie
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Qi-Hua Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| |
Collapse
|
3
|
Zhong YF, Bao GM, Xia YF, Peng XX, Peng JF, He JX, Lin S, Zeng L, Fan Q, Xiao W, Yuan HQ. Recyclable europium functionalized metal-organic fluorescent probe for detection of tryptophan in biological fluids and food products. Anal Chim Acta 2021; 1180:338897. [PMID: 34538312 DOI: 10.1016/j.aca.2021.338897] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 12/14/2022]
Abstract
An europium functionalized metal-organic fluorescent probe, Eu3+@UiO-66-FDC was constructed by post-synthetic modification through coordination interactions. Eu3+@UiO-66-FDC displayed high selectivity and sensitivity toward Tryptophan (Trp) among all the 20 natural amino acids and other general compounds in food and biological samples, with a wide linear concentration range (0-1000 μM), low detection limit (0.29 μM), and a rapid response (<1 min). Besides, this probe was utilized to detect Trp in rabbit blood serum and milk samples with good recoveries, which were verified by high-performance liquid chromatography (HPLC). Notably, this fluorescent probe proved to be a recyclable material. Hence, this work provides a reliable and recyclable fluorescent probe applicable toward the detection of Trp in biological fluids and/or food products.
Collapse
Affiliation(s)
- Yu-Fei Zhong
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Guang-Ming Bao
- Institute of Veterinary Drug, Jiangxi Agricultural University / Jiangxi Provincial Key Laboratory for Animal Health, Nanchang, 330045, PR China
| | - Yi-Fan Xia
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Xiong-Xin Peng
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Jin-Feng Peng
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Jia-Xin He
- Institute of Veterinary Drug, Jiangxi Agricultural University / Jiangxi Provincial Key Laboratory for Animal Health, Nanchang, 330045, PR China
| | - Shuai Lin
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Lintao Zeng
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Qing Fan
- Institute of Veterinary Drug, Jiangxi Agricultural University / Jiangxi Provincial Key Laboratory for Animal Health, Nanchang, 330045, PR China
| | - Wei Xiao
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Hou-Qun Yuan
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China.
| |
Collapse
|
4
|
Pyridine functionalized carbon dots for specific detection of tryptophan in human serum samples and living cells. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104579] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
5
|
Zhang J, Huang Y, Yue D, Cui Y, Yang Y, Qian G. A luminescent turn-up metal–organic framework sensor for tryptophan based on singlet–singlet Förster energy transfer. J Mater Chem B 2018; 6:5174-5180. [DOI: 10.1039/c8tb01592a] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly stable MOF, ZJU-108, was synthesized with Zn2+ and 6-(4-pyridyl)-terephthalic acid (H2pta) as construction units, and it exhibits an impressive turn-on luminescence enhancement response to tryptophan.
Collapse
Affiliation(s)
- Jun Zhang
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
| | - Yike Huang
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
| | - Dan Yue
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
| | - Yuanjing Cui
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
| | - Yu Yang
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
| | - Guodong Qian
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
| |
Collapse
|
6
|
Bongiorno D, Calabrese V, Ceraulo L, Indelicato S, Turco Liveri V. Entrapment of amino acids in gas phase surfactant assemblies: The case of tryptophan confined in positively charged (1R,2S)-dodecyl (2-hydroxy-1-methyl-2-phenylethyl) dimethylammonium bromide aggregates. JOURNAL OF MASS SPECTROMETRY : JMS 2017; 52:681-688. [PMID: 28732132 DOI: 10.1002/jms.3972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/29/2017] [Accepted: 07/17/2017] [Indexed: 06/07/2023]
Abstract
The ability of positively charged aggregates of the surfactant (1R,2S)-dodecyl(2-hydroxy-1-methyl-2-phenylethyl)dimethylammonium bromide (DMEB) to incorporate D-tryptophan or L-tryptophan in the gas phase has been investigated by electrospray ion mobility mass spectrometry (ESI-IM-MS). Strongly impacted by the pH of the electrosprayed solutions, both protonated (T+ ) and deprotonated (T- ) tryptophan are effectively included into the aggregates, whereas, tryptophan in zwitterionic (T0 ) form is practically absent in singly charged DMEB aggregates but can be found in multiply charged ones. The ability to incorporate tryptophan increases with the aggregation number and charge state of aggregates. More than 1 tryptophan species can be entrapped (aggregates including up to 5 tryptophan are observed). Collision induced dissociation experiments performed on the positively singly charged DMEB hexamer containing 1 T- show that at low collision energies the loss of a DMEB molecule is preferred with respect to the loss of the DMEB cation plus T- species which, in turn, is preferred with respect to the loss of mere tryptophan, suggesting that the deprotonated amino acid is preferentially located in proximity of a DMEB head group and with the ionic moiety pointing towards the core of the aggregate. The analysis of the collision cross sections (CCS) of bare and tryptophan containing aggregates allowed evaluating the contributions of tryptophan and bromide ions to the total aggregate CCS. No significant discrimination between D-tryptophan and L-tryptophan by the chiral DMEB aggregates has been evidenced by mass spectra data, CID experiments, and CCS values.
Collapse
Affiliation(s)
- David Bongiorno
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Valentina Calabrese
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Leopoldo Ceraulo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Serena Indelicato
- Dipartimento di Scienze della Terra e del Mare (DISTEM), Università degli Studi di Palermo, via Archirafi 26, 90123, Palermo, Italy
| | - Vincenzo Turco Liveri
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| |
Collapse
|
7
|
Glycine molecules in ionic liquid based reverse micelles: Investigation of structure and dynamics using molecular dynamics simulations. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
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.
Collapse
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
| |
Collapse
|
9
|
Bechara C, Robinson CV. Different Modes of Lipid Binding to Membrane Proteins Probed by Mass Spectrometry. J Am Chem Soc 2015; 137:5240-7. [DOI: 10.1021/jacs.5b00420] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Chérine Bechara
- Department of Chemistry,
Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford OX1 3QZ, United Kingdom
| | - Carol V. Robinson
- Department of Chemistry,
Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford OX1 3QZ, United Kingdom
| |
Collapse
|
10
|
Indelicato S, Bongiorno D, Turco Liveri V, Mele A, Panzeri W, Castiglione F, Ceraulo L. Self-assembly and intra-cluster reactions of erbium and ytterbium bis(2-ethylhexyl)sulfosuccinates in the gas phase. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:2523-2530. [PMID: 25366399 DOI: 10.1002/rcm.7045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/02/2014] [Accepted: 09/04/2014] [Indexed: 06/04/2023]
Abstract
RATIONALE The study of surfactant organization in vacuum allows surfactant-surfactant interaction to be unveiled in the absence of surrounding solvent molecules. Knowledge on their chemical-physical properties may also lead to the definition of more efficient gas-phase carriers, air-cleaning agents and nanoreactors. In addition, the presence of lanthanide-group ions adds unique photochemical properties to surfactants. METHODS The structural features, stability and fragmentation patterns of charged aggregates formed by lanthanide-functionalized surfactants, ytterbium and erbium bis(2-ethylhexyl)sulfosuccinate ((AOT)3Yb and (AOT)3Er), have been investigated by electrospray ionization mass spectrometry (ESI-MS), tandem mass spectrometry (ESI-MS/MS) and energy-resolved mass spectrometry (ER-MS). RESULTS The experimental data indicate that the self-assembling of (AOT)3Yb and (AOT)3Er in the gas phase leads to the formation of a wide range of singly charged aggregates differing in their aggregation number, relative abundance and stability. In addition to specific effects on aggregate organization due to the presence of lanthanide ions, ER-MS experiments show rearrangements and in-cage reactions activated by collision, eventually including alkyl chain intra-cluster migration. CONCLUSIONS Analysis of the experimental findings suggests that the observed chemical transformations occur within an organized supramolecular assembly rather than in a random association of components. The fragmentation pathways leading to the neutral loss of a fragment of nominal mass 534 Da, assigned as C28 H54 O7 S, from some positively charged aggregates has been rationalized.
Collapse
Affiliation(s)
- Serena Indelicato
- Department STEBICEF, University of Palermo, Via Archirafi n.32, I-90123, Palermo, Italy; CGA-UniNetLab, University of Palermo, Via F. Marini n.14, I-90128, Palermo, Italy
| | | | | | | | | | | | | |
Collapse
|
11
|
Longhi G, Ceselli A, Fornili SL, Abbate S, Ceraulo L, Liveri VT. Molecular dynamics of electrosprayed water nanodroplets containing sodium bis(2-ethylhexyl)sulfosuccinate. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:478-486. [PMID: 23584941 DOI: 10.1002/jms.3179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 11/22/2012] [Accepted: 02/01/2013] [Indexed: 06/02/2023]
Abstract
The behavior of aqueous solutions of sodium bis(2-ethylhexyl)sulfosuccinate (AOTNa) subject to electrospray ionization (ESI) has been investigated by molecular dynamics (MD) simulations at three temperatures (350, 500 and 800 K). We consider several types of water nanodroplets containing AOTNa molecules and composed of a fixed number of water molecules (1000), N(AOT)(0) AOT(-) anions (N(AOT)(0) = 0, 5, 10) and N(Na)(0) sodium ions (N(Na)(0) = 0, 5, 10, 15, 20): in a short time scale (less than 1 ns), the AOTNa molecules, initially forming direct micelles in the interior of the water nanodroplets, are observed in all cases to diffuse nearby the nanodroplet surface, so that the hydrophilic heads and sodium ions become surrounded by water molecules, whereas the alkyl chains lay at the droplet surface. Meanwhile, evaporation of water molecules and of solvated sodium ions occurs, leading to a decrease of the droplet size and charge. At 350 K, no ejection of neutral or charged surfactant molecules is observed, whereas at 500 K, some fragmentation occurs, and at 800 K, this event becomes more frequent. The interplay of all these processes, which depend on the values of temperature, N(AOT)(0) and N(Na)(0) eventually leads to anhydrous charged surfactant aggregates with prevalence of monocharged ones, in agreement with experimental results of ESI mass spectrometry. The quantitative analysis of the MD trajectories allows to evidence molecular details potentially useful in designing future ESI experimental conditions.
Collapse
Affiliation(s)
- Giovanna Longhi
- Dipartimento di Scienze Biomediche e Biotecnologie, Università di Brescia, Viale Europa 11, 25123, Brescia, Italy
| | | | | | | | | | | |
Collapse
|
12
|
Fang Y, Liu F, Emre R, Liu J. Guided-Ion-Beam Scattering and Direct Dynamics Trajectory Study on the Reaction of Deprotonated Cysteine with Singlet Molecular Oxygen. J Phys Chem B 2013; 117:2878-87. [DOI: 10.1021/jp4002077] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yigang Fang
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Queens, New York
11367, United States
| | - Fangwei Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Queens, New York
11367, United States
| | - Rifat Emre
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Queens, New York
11367, United States
| | - Jianbo Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Queens, New York
11367, United States
| |
Collapse
|
13
|
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.
Collapse
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
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Fang Y, Liu F, Liu J. Mass spectrometry study of multiply negatively charged, gas-phase NaAOT micelles: how does charge state affect micellar structure and encapsulation? JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2013; 24:9-20. [PMID: 23247969 DOI: 10.1007/s13361-012-0530-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 10/26/2012] [Accepted: 10/30/2012] [Indexed: 06/01/2023]
Abstract
We report the formation and characterization of multiply negatively charged sodium bis(2-ethylhexyl) sulfosuccinate (NaAOT) aggregates in the gas phase, by electrospray ionization of methanol/water solution of NaAOT followed by detection using a guided-ion-beam tandem mass spectrometer. Singly and doubly charged aggregates dominate the mass spectra with the compositions of [Na(n-z)AOT(n)](z-) (n = 1-18 and z = 1-2). Solvation by water was detected only for small aggregates [Na(n-1)AOT(n)H(2)O](-) of n = 3-9. Incorporation of glycine and tryptophan into [Na(n-z)AOT(n)](z-) aggregates was achieved, aimed at identifying effects of guest molecule hydrophobicity on micellar solubilization. Only one glycine molecule could be incorporated into each [Na(n-z)AOT(n)](z-) of n ≥ 7, and at most two glycine molecules could be hosted in that of n ≥ 13. In contrast to glycine, up to four tryptophan molecules could be accommodated within single aggregates of n ≥ 6. However, deprotonation of tryptophan significantly decrease its affinity towards aggregates. Collision-induced dissociation (CID) was carried out for mass-selected aggregate ions, including measurements of product ion mass spectra for both empty and amino acid-containing aggregates. CID results provide a probe for aggregate structures, surfactant-solute interactions, and incorporation sites of amino acids. The present data was compared with mass spectrometry results of positively charged [Na(n+z)AOT(n)](z+) aggregates. Contrary to their positive analogues, which form reverse micelles, negatively charged aggregates may adopt a direct micelle-like structure with AOT polar heads exposed and amino acids being adsorbed near the micellar outer surface.
Collapse
Affiliation(s)
- Yigang Fang
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Blvd, Flushing, NY 11367, USA
| | | | | |
Collapse
|
15
|
Liu F, Emre R, Lu W, Liu J. Oxidation of gas-phase hydrated protonated/deprotonated cysteine: how many water ligands are sufficient to approach solution-phase photooxidation chemistry? Phys Chem Chem Phys 2013; 15:20496-509. [DOI: 10.1039/c3cp53736f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
16
|
Giorgi G, Ceraulo L, Liveri VT. Surfactant self-assembling in the gas phase: bis(2-ethylhexyl)-sulfosuccinate divalent metal ion anionic aggregates. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:2260-2266. [PMID: 22956317 DOI: 10.1002/rcm.6346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE Investigation of fundamental aspects driving surfactant self-assembling and of the capability of including guest molecules or ions in their micellar aggregates is an exciting research field for theoretical and technological reasons. In this light, assembling and chelating properties of sodium bis(2-ethylhexyl)sulfosuccinate (AOTNa) towards divalent metal ion chlorides have been investigated in the gas phase by electrospray ionization mass spectrometry in negative ion mode, tandem mass spectrometry and energy-resolved mass spectrometry. METHODS Water/methanol solutions of AOTNa and chloride salts of nickel, magnesium, calcium and manganese, with different AOTNa/metal salt ratios, were infused into the electrospray source of a LCQ DECA ion trap mass spectrometer, operating in negative ion mode, at a flow rate of 5 μL/min. Low energy collision-induced dissociations were carried out by using helium with collision energy in the range 1-5 eV. RESULTS A variety of negatively singly charged monometallated and mixed metal aggregates have been observed, some of which were able to incorporate the metal counter ion of the inorganic salt used. The stability of these aggregates was evaluated by energy-resolved mass spectrometry which showed, for the anions [AOTM(II)Cl(2)](-), a stability order Ca > Mn > Mg > Ni. Their decomposition pathways show the unusual formation of the radical anions [C(4)HO(6)SM(II)Cl](-•). CONCLUSIONS This study shed some light on the assembling and chelating properties of AOT(-) towards divalent metal ions to form negatively charged assemblies, some of them incorporating the metal counter ion of the inorganic salt used. Differently from what was observed with positively charged AOT-M(II) aggregates, solvated species were not detectable. An exception to the even-electron rule was observed in the decomposition pathway of [AOTM(II)Cl(2)](-).
Collapse
Affiliation(s)
- Gianluca Giorgi
- Dipartimento di Chimica, Università degli Studi di Siena, Via Aldo Moro I-53100 Siena, Italy.
| | | | | |
Collapse
|
17
|
Liu F, Fang Y, Chen Y, Liu J. Reactions of Deprotonated Tyrosine and Tryptophan with Electronically Excited Singlet Molecular Oxygen (a1Δg): A Guided-Ion-Beam Scattering, Statistical Modeling, and Trajectory Study. J Phys Chem B 2012; 116:6369-79. [DOI: 10.1021/jp303022b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Fangwei Liu
- Department of Chemistry
and Biochemistry, Queens College and the Graduate Center of the City University of New York,
65-30 Kissena Blvd., Flushing, New York 11367, United States
| | - Yigang Fang
- Department of Chemistry
and Biochemistry, Queens College and the Graduate Center of the City University of New York,
65-30 Kissena Blvd., Flushing, New York 11367, United States
| | - Yun Chen
- Department of Chemistry
and Biochemistry, Queens College and the Graduate Center of the City University of New York,
65-30 Kissena Blvd., Flushing, New York 11367, United States
| | - Jianbo Liu
- Department of Chemistry
and Biochemistry, Queens College and the Graduate Center of the City University of New York,
65-30 Kissena Blvd., Flushing, New York 11367, United States
| |
Collapse
|
18
|
Borysik AJ, Robinson CV. Formation and dissociation processes of gas-phase detergent micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7160-7. [PMID: 22512598 DOI: 10.1021/la3002866] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Growing interest in micelles to protect membrane complexes during the transition from solution to gas phase prompts a better understanding of their properties. We have used ion mobility mass spectrometry to separate and assign detergent clusters formed from the n-trimethylammonium bromide series of detergents. We show that cluster size is independent of detergent concentration in solution, increases with charge state, but surprisingly decreases with alkyl chain length. This relationship contradicts the thermodynamics of micelle formation in solution. However, the liquid drop model, which considers both the surface energy and charge, correlates extremely well with the experimental cluster size. To explore further the properties of gas-phase micelles, we have performed collision-induced dissociation on them during tandem mass spectrometry. We observed both sequential asymmetric charge separation and neutral evaporation from the precursor ion cluster. Interestingly, however, we also found markedly different dissociation pathways for the longer alkyl chain detergents, with significantly fewer intermediate ions formed than for those with a shorter alkyl chain. These experiments provide an essential foundation for understanding the process of the gas-phase analysis of membrane protein complexes. Moreover they imply valuable mechanistic details of the protection afforded to protein complexes by detergent clusters during gas-phase activation processes.
Collapse
Affiliation(s)
- Antoni J Borysik
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | | |
Collapse
|
19
|
Bongiorno D, Ceraulo L, Giorgi G, Indelicato S, Turco Liveri V. Do electrospray mass spectra of surfactants mirror their aggregation state in solution? JOURNAL OF MASS SPECTROMETRY : JMS 2011; 46:1262-1267. [PMID: 22223417 DOI: 10.1002/jms.2013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
One important feature in the gas phase chemistry of surfactants is to ascertain whether their aggregates produced by electrospray ionization reflect those formed in the starting solution. With this aim, we have performed ESI-MS, ESI-MS/MS and ER-MS spectra of bis(2-ethylhexyl)sulfosuccinate (AOTNa) solutions in different solvents, i.e. water, water/methanol, methanol and n-hexane. The results clearly indicate that, notwithstanding the strongly different aggregation state in solution (direct micelles in water and in water/methanol, molecular dispersion in methanol and reverse micelles in n-hexane) and marked effects of the solvent polarity on the total ionic current, the surfactant aggregates in gas phase show identical structural features. Analogous conclusions can be drawn analyzing the infrared multiple photon dissociation (IRMPD) spectra of AOTNa solutions in water/methanol and n-hexane. Moreover, according to the idea that gas phase can be considered an apolar environment par excellence, data consistently suggest a reverse micelle-like aggregation. Some peculiarities of the mechanisms leading to aggregate formation through electrospray ionization of surfactant solutions in solvent media with different polarity have been also discussed.
Collapse
Affiliation(s)
- D Bongiorno
- Dipartimento di Scienze e Tecnologie Molecolari e Biomolecolari (STEMBIO), Università degli Studi di Palermo, Viale delle Scienze, Ed. 16, I-90128, Palermo, Italy
| | | | | | | | | |
Collapse
|
20
|
Liu F, Fang Y, Chen Y, Liu J. Dissociative Excitation Energy Transfer in the Reactions of Protonated Cysteine and Tryptophan with Electronically Excited Singlet Molecular Oxygen (a1Δg). J Phys Chem B 2011; 115:9898-909. [DOI: 10.1021/jp205235d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fangwei Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Yigang Fang
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Yun Chen
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Jianbo Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| |
Collapse
|
21
|
Fang Y, Liu F, Bennett A, Ara S, Liu J. Experimental and Trajectory Study on the Reaction of Protonated Methionine with Electronically Excited Singlet Molecular Oxygen (a1Δg): Reaction Dynamics and Collision Energy Effects. J Phys Chem B 2011; 115:2671-82. [DOI: 10.1021/jp112237y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yigang Fang
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Fangwei Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Andrew Bennett
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Shamim Ara
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Jianbo Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| |
Collapse
|
22
|
Ceraulo L, Giorgi G, Liveri VT, Bongiorno D, Indelicato S, Di Gaudio F, Indelicato S. Mass spectrometry of surfactant aggregates. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2011; 17:525-541. [PMID: 22274944 DOI: 10.1255/ejms.1158] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In contrast with the enormous amount of literature produced during many decades in the field of surfactant aggregation in liquid, liquid crystalline and solid phases, only a few investigations concerning surfactant self- assembling in the gas phase as charged aggregates have been carried out until now. This lack of interest is disappointing in view of the remarkable theoretical and practical importance of the inherent knowledge. The absence of surfactant-solvent interactions makes it easier to study the role of surfactant-surfactant forces in determining their peculiar self-assembling features as well as the ability of these assemblies to incorporate selected solubilizate molecules. Thus, the study of gas-phase surfactant and surfactant-solubilizate aggregates is a research subject which has exciting potential, including mass and energy transport in the atmosphere, origin of life and simulation of supramolecular aggregation in interstellar space. On the other hand, the structural and dynamic properties of surfactant aggregates in the gas phase could be exploited in a number of interesting applications such as atmospheric cleaning agents, transport and protection of pulmonary drugs or biomolecules and as nanoreactors for specialized chemical reactions in confined space. Spectrometric techniques, together with molecular dynamics simulations, have been the principal investigative tools in this field and appearto be particularly suited to gaining fundamental information on the structure and stability of surfactant-based supramolecular aggregates, charge state effects, entrapment of solubilizate molecules, preferential solubilization sites and chemical reactions localized in a single organized aggregate. The main aim of this review is to present the actual state of the art in this novel and exciting research field underlining the knowledge acquired up to now as well as the aspects needing a more deep understanding. Moreover, intriguing departures of the behavior of surfactant solutions under electrospray ionization conditions from that of ionic, polar and apolar analytes will be discussed.
Collapse
Affiliation(s)
- Leopoldo Ceraulo
- Dipartimento di Scienze e Tecnologie Molecolari e Biomolecolari, Università degli Studi di Palermo, Via Archirafi 32, I-90123, Palermo, Italy.
| | | | | | | | | | | | | |
Collapse
|