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Farasati Far B, Maleki-Baladi R, Fathi-Karkan S, Babaei M, Sargazi S. Biomedical applications of cerium vanadate nanoparticles: a review. J Mater Chem B 2024; 12:609-636. [PMID: 38126443 DOI: 10.1039/d3tb01786a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Cerium vanadate nanoparticles (CeVO4 NPs), which are members of the rare earth orthovanadate nanomaterial family, have generated considerable interest due to their diverse properties and prospective biomedical applications. The current study, which provides a comprehensive overview of the synthesis and characterization techniques for CeVO4 NPs, emphasizes the sonochemical method as an efficient and straightforward technique for producing CeVO4 NPs with tunable size and shape. This paper investigates the toxicity and biocompatibility of CeVO4 NPs, as well as their antioxidant and catalytic properties, which allow them to modify the redox state of biological systems and degrade organic pollutants. In addition, the most recent developments in the medicinal applications of CeVO4 NPs, such as cancer treatment, antibacterial activity, biosensing, and drug or gene delivery, are emphasized. In addition, the disadvantages of CeVO4 NPs, such as stability, aggregation, biodistribution, and biodegradation, are outlined, and several potential solutions are suggested. The research concludes with data and recommendations for developing and enhancing CeVO4 NPs in the biomedical industry.
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Affiliation(s)
- Bahareh Farasati Far
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.
| | - Reza Maleki-Baladi
- Department of Animal Science, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran.
- Young Researchers and Elite Club, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
- Universal Scientific Education and Research Network (USERN), Bojnourd, Iran
| | - Sonia Fathi-Karkan
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, 94531-55166, Iran.
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd 9414974877, Iran
| | - Meisam Babaei
- Department of Pediatrics, North Khorasan University of Medical Sciences, Bojnurd, 9417694735, Iran.
| | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran.
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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Paulson AE, Premasiri WR, Ziegler LD, Lee YJ. Use of Nanoparticle Decorated Surface-Enhanced Raman Scattering Active Sol-Gel Substrates for SALDI-MS Analysis. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2023; 34:273-278. [PMID: 36594588 DOI: 10.1021/jasms.2c00285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Spectroscopy and mass spectrometry techniques are sometimes combined into the same analytical workflow to leverage each technique's analytical benefits. This combined workflow is especially useful in forensic and medical contexts where samples are often precious in nature. Here, we adopt metal nanoparticle (NP) doped sol-gel substrates, initially developed for surface-enhanced Raman scattering (SERS) analysis, as surface-assisted laser desorption/ionization-mass spectrometry (SALDI-MS) substrates. Using dried blood and sample protocols previously developed for SERS analysis, we observe heme-related spectral features on both silver and gold NP substrates by SALDI-MS, demonstrating dual functionality for these orthogonal techniques. Modifying the dried blood extraction procedures also allows for the observation of blood triacylglycerols by SALDI-MS. This is the first demonstration of a SERS/SALDI-MS substrate based on a sol-gel scaffold and the first demonstration of a gold NP sol-gel substrate for SALDI-MS which features lower substrate-related SALDI-MS background compared to the silver substrate.
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Affiliation(s)
- Andrew E Paulson
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - W Ranjith Premasiri
- Department of Chemistry and Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Lawrence D Ziegler
- Department of Chemistry and Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Young Jin Lee
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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Naito Y, Kotani M, Ohmura T. A novel laser desorption/ionization method using through hole porous alumina membranes. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1851-1858. [PMID: 30076645 PMCID: PMC6175246 DOI: 10.1002/rcm.8252] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/16/2018] [Accepted: 07/25/2018] [Indexed: 06/01/2023]
Abstract
RATIONALE A novel matrix-free laser desorption/ionization method based on porous alumina membranes was developed. The porous alumina membranes have a two-dimensional (2D) ordered structure consisting of closely aligned straight through holes of sub-micron in diameter that are amenable to mass production by industrial fabrication processes. METHODS Considering a balance between the ion generating efficiency and the mechanical strength of the membranes, the typical values for the hole diameter, open aperture ratio and membrane thickness were set to 200 nm, 50% and 5 μm, respectively. The membranes were coated with platinum on a single side that was exposed to the laser. Evaluation experiments were conducted on the feasibility of this membrane structure for an ionization method using a single peptide and mixed peptides and polyethylene glycol samples and a commercial matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectrometer in the positive ion mode. RESULTS Results showed a softness of ionization and no sweet spot nature. The capillary action of the through holes with very high aspect ratio enables several loading protocols including sample impregnation from the surface opposite to the laser exposure side. CONCLUSIONS The feasibility study indicates that the through hole porous alumina membranes have several advantages in terms of usefulness over the conventional surface-assisted laser desorption ionization (SALDI) methods. The proposed novel ionization method is termed Desorption Ionization Using Through Hole Alumina Membrane (DIUTHAME).
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Affiliation(s)
- Yasuhide Naito
- The Graduate School for the Creation of New Photonics Industries1955‐1 Kurematsu‐cho, Nishi‐kuHamamatsu431‐1202Japan
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Lee G, Bae SE, Huh S, Cha S. Graphene oxide embedded sol–gel (GOSG) film as a SALDI MS substrate for robust metabolite fingerprinting. RSC Adv 2015. [DOI: 10.1039/c5ra11497g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A graphene oxide embedded sol–gel (GOSG) film was utilized as a substrate for surface-assisted laser desorption/ionization mass spectrometry (SALDI MS).
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Affiliation(s)
- Gwangbin Lee
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
| | - Sang-Eun Bae
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
| | - Seong Huh
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
| | - Sangwon Cha
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
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6
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Abstract
Laser desorption/ionization mass spectrometry (MS) is rapidly growing in popularity as an analytical characterization method in several fields. The technique shot to prominence using matrix-assisted desorption/ionization for large biomolecules (>700 Da), such as proteins, peptides and nucleic acids. However, because the matrix, which consists of small organic molecules, is also ionized, the technique is of limited use in the low-molecular-mass range (<700 Da). Recent advances in surface science have facilitated the development of matrix-free laser desorption/ionization MS approaches, which are referred to here as surface-assisted laser desorption/ionization (SALDI) MS. In contrast to traditional matrix-assisted techniques, the materials used for SALDI-MS are not ionized, which expands the usefulness of this technique to small-molecule analyses. This review discusses the current status of SALDI-MS as a standard analytical technique, with an emphasis on potential applications in proteomics.
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Affiliation(s)
- Andrew M Dattelbaum
- Materials Science & Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
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Chen Y, Chinthaka SDM, Rodgers MT. Silver cation affinities of monomeric building blocks of polyethers and polyphenols determined by guided ion beam tandem mass spectrometry. J Phys Chem A 2013; 117:8274-84. [PMID: 23914909 DOI: 10.1021/jp402224t] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Energy-resolved collision-induced dissociation (CID) of seven silver cation-ligand complexes, Ag(+)(L), with Xe is studied using guided ion beam tandem mass spectrometry techniques. The ligands, L, investigated are monomeric building blocks of polyethers and polyphenols including phenol, 2-hydroxyphenol, 3-hydroxyphenol, 4-hydroxyphenol, 2-hydroxymethyl phenol, 3-hydroxymethyl phenol, and 4-hydroxymethyl phenol. In all cases, Ag(+) is observed as the primary CID product, corresponding to endothermic loss of the intact neutral ligand. The kinetic-energy-dependent cross sections for CID of these Ag(+)(L) complexes are analyzed using an empirical threshold law to extract absolute 0 and 298 K Ag(+)-L bond dissociation energies (BDEs). Density functional theory calculations at the B3LYP/6-31G* level of theory are used to determine the structures of the neutral ligands and their complexes to Ag(+) using either the Stuttgart RSC 1997 valence basis set and effective core potential (SRSC ECP) or DZVP-DFT to describe Ag(+). Theoretical BDEs are determined at the B3LYP/6-311+G(2d,2p) level of theory again using the SRSC ECP or DZVP-DFT for Ag(+). For all systems, the most stable binding conformations found involve cation-π interactions when the SRSC ECP is used to describe Ag(+). When DZVP-DFT is employed, the most stable binding geometries remain cation-π complexes except for the complex to 2HP, where the ground-state conformer involves bidentate binding of Ag(+) to the hydroxyl oxygen atoms of both substituents. The agreement between the measured and calculated BDEs is excellent with a MAD of 2.9 ± 1.7 kJ/mol when the SRSC ECP is used to describe Ag(+) and less satisfactory for DZVP-DFT, which underestimates the strength of binding in these systems by ~14% or 26.0 ± 6.7 kJ/mol.
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Affiliation(s)
- Y Chen
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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Gamez RC, Castellana ET, Russell DH. Sol-gel-derived silver-nanoparticle-embedded thin film for mass spectrometry-based biosensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6502-7. [PMID: 23647451 DOI: 10.1021/la4008526] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A porous silver-nanoparticle (AgNP)-embedded thin film biosensor was produced by the sol-gel method. The thin films were used as matrix-free laser desorption ionization mass spectrometry (LDI-MS) biosensors applicable to several chemical classes. In these experiments, UV laser irradiation (337 nm) of the AgNP facilitates desorption and ionization of a number of peptides, triglycerides, and phospholipids. Preferential ionization of sterols from vesicles composed of olefinic phosphosphatidylcholines is also demonstrated, offering the possibility for a simplified approach for sterol analysis from complex mixtures. The composition of the nanoparticles was confirmed by X-ray photoelectron spectroscopy (XPS) and UV-vis spectroscopy. XPS data revealed a binding energy of 368.2 eV, consistent with the previous assignment of the binding energy for the Ag 3d(5/2) peak from Ag(0) at 368.1 ± 0.1 eV. The surface morphology of the thin films was studied by field-emission scanning electron microscopy (FE-SEM) and revealed the presence of nanoparticles and the porous nature of the biosensor.
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Affiliation(s)
- Roberto C Gamez
- Department of Chemistry, Laboratory for Biological Mass Spectrometry, Texas A&M University, College Station, Texas 77843, USA
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9
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Hu JB, Chen YC, Urban PL. Coffee-ring effects in laser desorption/ionization mass spectrometry. Anal Chim Acta 2013; 766:77-82. [DOI: 10.1016/j.aca.2012.12.044] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 12/14/2012] [Accepted: 12/21/2012] [Indexed: 10/27/2022]
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Chinthaka SDM, Rodgers MT. Sodium cation affinities of commonly used MALDI matrices determined by guided ion beam tandem mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:676-689. [PMID: 22302589 DOI: 10.1007/s13361-012-0336-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 12/28/2011] [Accepted: 12/31/2011] [Indexed: 05/31/2023]
Abstract
The sodium cation affinities of six commonly used MALDI matrices are determined here using guided ion beam tandem mass spectrometry techniques. The collision-induced dissociation behavior of six sodium cationized MALDI matrices, Na+(MALDI), with Xe is studied as a function of kinetic energy. The MALDI matrices examined here include: nicotinic acid, quinoline, 3-aminoquinoline, 4-nitroaniline, picolinic acid, and 3-hydroxypicolinic acid. In all cases, the primary dissociation pathway corresponds to endothermic loss of the intact MALDI matrix. The cross section thresholds are interpreted to yield zero and 298 K Na+−MALDI bond dissociation energies (BDEs), or sodium cation affinities, after accounting for the effects of multiple ion-neutral collisions, the kinetic and internal energy distributions of the reactants, and dissociation lifetimes. Density functional theory calculations at the B3LYP/6-311+G(2d,2p)//B3LYP/6-31G* and MP2(full)/6-311+G(2d,2p)//B3LYP/6-31G* levels of theory are used to characterized the structures and energetics for these systems. The calculated BDEs exhibit very good agreement with the measured values for most systems. The experimental and theoretical Na+−MALDI BDEs determined here are compared with those previously measured by cation transfer equilibrium methods.
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Affiliation(s)
- S D M Chinthaka
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
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Bailes J, Soloviev M. The application of semiconductor quantum dots for enhancing peptide desorption, improving peak resolution and sensitivity of detection in matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. Methods Mol Biol 2012; 906:211-217. [PMID: 22791435 DOI: 10.1007/978-1-61779-953-2_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The interest in quantum dots (QD) and a number of reported life sciences applications increased dramatically over the last decade. The popularity of QDs stems from better photostability, higher extinction -co-efficients, and unique optical properties such as superior light absorption. Here we report methods for improving matrix-assisted laser desorption/ionization desorption of crude tryptic protein digests by using CdSe/ZnS QDs. The addition of QDs to the matrix improves the signal-to-noise ratio, peak quality and increases the number of detected peptides and the overall sequence coverage.
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Affiliation(s)
- Julian Bailes
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, UK
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Bailes J, Vidal L, Ivanov DA, Soloviev M. Quantum dots improve peptide detection in MALDI MS in a size dependent manner. J Nanobiotechnology 2009; 7:10. [PMID: 20043818 PMCID: PMC2806340 DOI: 10.1186/1477-3155-7-10] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Accepted: 12/31/2009] [Indexed: 12/04/2022] Open
Abstract
Laser Desorption Ionization Mass Spectrometry employs matrix which is co-crystallised with the analyte to achieve "soft ionization" that is the formation of ions without fragmentation. A variety of matrix-free and matrix-assisted LDI techniques and matrices have been reported to date. LDI has been achieved using ultra fine metal powders (UFMPs), desorption ionisation on silicon (DIOS), sol-gel assisted laser desorption/ionization (SGALDI), as well as with common MALDI matrices such as 2,5-dihydroxy benzoic acid (DHB), 3,5-dimethoxy-4-hydroxycinnamic acid (SA), α-cyano-4-hydroxycinnamic acid (CHCA) to name a few. A variety of matrix additives have been shown to improve matrix assisted desorption, including silicon nanowires (SiNW), carbon nanotubes (CNT), metal nanoparticles and nanodots. To our knowledge no evidence exists for the application of highly fluorescent CdSe/ZnS quantum dots to enhance MALDI desorption of biological samples. Here we report that although CdSe/ZnS quantum dots on their own can not substitute matrix in MALDI-MS, their presence has a moderately positive effect on MALDI desorption, improves the signal-to-noise ratio, peak quality and increases the number of detected peptides and the overall sequence coverage.
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Affiliation(s)
- Julian Bailes
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
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Fu Y, Xu S, Pan C, Ye M, Zou H. 3,4-diaminobenzophenone matrix for analysis of oligonucleotides by MALDI-TOF mass spectrometry. ACTA ACUST UNITED AC 2008; Chapter 10:Unit 10.12. [PMID: 18428967 DOI: 10.1002/0471142700.nc1012s31] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This unit contains procedures for analysis of oligonucleotides by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry with 3,4-diaminobenzophenone (DABP) as a matrix. This new matrix has demonstrated advantages in the analysis of oligonucleotides. With DABP as a matrix, intact oligonucleotide ions can be readily produced with lower laser powers, resulting in better detection limits, less fragmentation, and fewer alkali-metal ion adducts compared with results obtained using conventional matrices. Minimal fragmentation and fewer alkali-metal ion adducts were seen even at low oligonucleotide concentrations. It was also found that samples prepared with DABP are highly homogenous, therefore reducing the need to find "sweet spots" in MALDI. Finally, excellent shot-to-shot reproducibility, resolution, and signal-to-noise ratio are observed using the DABP matrix.
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Affiliation(s)
- Yu Fu
- National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Dalian, China
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Lo CY, Lin JY, Chen WY, Chen CT, Chen YC. Surface-assisted laser desorption/ionization mass spectrometry on titania nanotube arrays. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2008; 19:1014-1020. [PMID: 18487059 DOI: 10.1016/j.jasms.2008.04.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2007] [Revised: 04/23/2008] [Accepted: 04/23/2008] [Indexed: 05/26/2023]
Abstract
Titania nanotube arrays (NTA) generated from anodizing processes are tested as the substrate for surface-assisted laser desorption/ionization mass spectrometry (SALDI MS). The background generated from titania NTA is very low, making the approach suitable for the analysis of small molecules. The upper detectable mass is approximately 29 kDa. Homogeneous sample deposition leads to good shot-to-shot reproducibility and suitability for quantitative analysis. Additionally, phosphopeptides can be selectively trapped on the titania NTA substrate, as illustrated by simply depositing a tryptic digest of beta-casein followed by titania NTA SALDI MS analysis. The detection limit for small organics and peptides is in low fmol.
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Affiliation(s)
- Chun-Yuan Lo
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu, Taiwan
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Chiu Y, Chen Y. Carboxylate‐Functionalized Iron Oxide Nanoparticles in Surface‐Assisted Laser Desorption/Ionization Mass Spectrometry for the Analysis of Small Biomolecules. ANAL LETT 2008. [DOI: 10.1080/00032710701792653] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chinthaka SDM, Rodgers MT. Potassium Cation Affinities of Matrix Assisted Laser Desorption Ionization Matrices Determined by Threshold Collision-Induced Dissociation: Application to Benzoic Acid Derivatives. J Phys Chem A 2007; 111:8152-62. [PMID: 17672435 DOI: 10.1021/jp0667238] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Threshold collision-induced dissociation of K+(xBA) complexes with xenon is studied using guided ion beam mass spectrometry. The xBA ligands studied include benzoic acid and all of the mono- and dihydroxy-substituted benzoic acids: 2-, 3-, and 4-hydroxybenzoic acid and 2,3-, 2,4-, 2,5-, 2,6-, 3,4-, and 3,5-dihydroxybenzoic acid. In all cases, the primary product corresponds to endothermic loss of the intact xBA ligand. The cross section thresholds are interpreted to yield 0 and 298 K bond dissociation energies (BDEs) for K+-xBA after accounting for the effects of multiple ion-neutral collisions, the kinetic and internal energy distributions of the reactants, and dissociation lifetimes. Density functional theory calculations at the B3LYP/6-31G* level of theory are used to determine the structures of the xBA ligands and their complexes with K+. Theoretical BDEs are determined from single-point energy calculations at the B3LYP/6-311+G(2d,2p) and MP2(full)/6-311+G(2d,2p) levels using B3LYP/6-31G* optimized geometries. Four favorable binding modes for the K+(xBA) complexes are found. In all complexes to an xBA ligand that does not have a 2-hydroxyl substituent, the most favorable binding mode corresponds to a single interaction with the carbonyl oxygen atom. Formation of a 4-membered ring via chelation interactions with both oxygen atoms of the carboxylic acid group is found to be the most favorable binding mode for all of the 2-hydroxy-substituted systems except K+(2,3-dihydroxybenzoic acid). In these complexes, a hydrogen-bonding interaction between the hydrogen atom of the carboxylic acid moiety and the oxygen atom of the 2-hydroxy substituent provides additional stabilization. Formation of a 5-membered chelation ring via interaction of K+ with the oxygen atoms of adjacent hydroxyl substituents is also favorable and corresponds to the ground-state geometry for the K+(23DHBA) complex. Formation of a 6-membered chelation ring via interaction of K+ with the carbonyl and 2-hydroxyl oxygen atoms is also quite favorable but does not correspond to the ground-state geometry for any of the systems examined here. The experimental BDEs determined here are in very good agreement with the calculated values.
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Affiliation(s)
- S D M Chinthaka
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA
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17
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Peterson DS. Matrix-free methods for laser desorption/ionization mass spectrometry. MASS SPECTROMETRY REVIEWS 2007; 26:19-34. [PMID: 16967450 DOI: 10.1002/mas.20104] [Citation(s) in RCA: 198] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Matrix assisted laser desorption/ionization (MALDI) is a soft ionization mass spectrometric method that has become a preeminent technique in the analysis of a wide variety of compounds including polymers and proteins. The main drawback of MALDI is that it is difficult to analyze low molecular weight compounds (<1,000 m/z) because the matrix that allows MALDI to work interferes in this mass range. In recent years there has been considerable interest in developing laser desorption/ionization (LDI) techniques for the analysis of small molecules. This review examines the approaches to matrix-free LDI mass spectrometry including desorption/ionization on silicon (DIOS), sol-gels, and carbon-based microstructures. For the purposes of this review matrix-free methods are defined as those that do not require matrix to be mixed with the analyte and therefore does not require co-crystallization. The review will also examine mechanisms of ionization and applications of matrix-free LDI-MS.
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Affiliation(s)
- Dominic S Peterson
- Los Alamos National Laboratory, Chemistry Division, Mailstop K484, Los Alamos, New Mexico 87545, USA.
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Fu Y, Xu S, Pan C, Ye M, Zou H, Guo B. A matrix of 3,4-diaminobenzophenone for the analysis of oligonucleotides by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Nucleic Acids Res 2006; 34:e94. [PMID: 16885235 PMCID: PMC1540732 DOI: 10.1093/nar/gkl509] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2006] [Revised: 07/01/2006] [Accepted: 07/03/2006] [Indexed: 12/04/2022] Open
Abstract
A new matrix of 3,4-diaminobenzophenone (DABP) was demonstrated to be advantageous in the analysis of oligonucleotides by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. With DABP as a matrix, intact oligonucleotide ions can be readily produced with lower laser powers, resulting in better detection limits, less fragmentation and fewer alkali metal ion adducts compared with the results obtained with conventional matrices. Importantly, minimal fragmentation and fewer alkali metal ion adducts were seen even at low concentrations of oligonucleotides. It was also found that samples prepared with DABP are highly homogenous and therefore reducing the need for finding 'sweet' spots in MALDI. In addition, excellent shot-to-shot reproducibility, resolution and signal-to-noise ratio were seen with DABP as the matrix.
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Affiliation(s)
- Yu Fu
- National Chromatographic R&A Center, Dalian Institute of Chemical Physics, The Chinese Academy of SciencesDalian 116023, China
- Department of Chemistry, Cleveland State UniversityCleveland, OH 44115, USA
| | - Songyun Xu
- National Chromatographic R&A Center, Dalian Institute of Chemical Physics, The Chinese Academy of SciencesDalian 116023, China
- Department of Chemistry, Cleveland State UniversityCleveland, OH 44115, USA
| | - Chensong Pan
- National Chromatographic R&A Center, Dalian Institute of Chemical Physics, The Chinese Academy of SciencesDalian 116023, China
- Department of Chemistry, Cleveland State UniversityCleveland, OH 44115, USA
| | - Mingliang Ye
- National Chromatographic R&A Center, Dalian Institute of Chemical Physics, The Chinese Academy of SciencesDalian 116023, China
- Department of Chemistry, Cleveland State UniversityCleveland, OH 44115, USA
| | - Hanfa Zou
- To whom correspondence should be addressed. Tel: +86 411 843 79610; Fax: +86 411 843 79620;
| | - Baochuan Guo
- Department of Chemistry, Cleveland State UniversityCleveland, OH 44115, USA
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Banoub JH, Newton RP, Esmans E, Ewing DF, Mackenzie G. Recent developments in mass spectrometry for the characterization of nucleosides, nucleotides, oligonucleotides, and nucleic acids. Chem Rev 2005; 105:1869-915. [PMID: 15884792 DOI: 10.1021/cr030040w] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joseph H Banoub
- Fisheries and Oceans Canada, Science Branch, Special Projects, P.O. Box 5667, St. John's NL A1C 5X1, Canada.
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