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Maghari S, Reimhult E, Ghezellou P, Ghassempour A. Modifying superparamagnetic iron oxide and silica nanoparticles surfaces for efficient (MA)LDI-MS analyses of peptides and proteins. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2022; 36:e9212. [PMID: 34661948 DOI: 10.1002/rcm.9212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Surface functionalization is considered to be the foundation for developing nanomaterial applications in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analyses. However, the surface properties of nanostructures can influence their interaction with the analyte and consequently the mass data. In the present study, functionalized nanoparticles (NPs) were used for MALDI-MS and laser desorption/ionization mass spectrometry (LDI-MS) experiments in order to evaluate the effect of the surface properties of NPs on tailoring the intensity of mass signals. METHODS Regarding the LDI-MS analyses, the surface of superparamagnetic iron oxide nanoparticles (SPIONs) was coated with nitrosonium tetrafluoroborate, citric acid, nitrodopamine, and gallic acid. Additionally, the SPIONs were applied as a matrix to analyze three small peptides. In the MALDI-MS analyses, silica NPs were selected as co-matrix and functionalized with cysteine, sulfobetaine, and amine alkoxysilanes. Then, the silica NPs were utilized as additives in the MALDI-MS samples of four proteins in a mass range between ~2000 and 60,000 Da. RESULTS The results of LDI-MS analyses demonstrated more than one order enhancement in the signal intensity of analytes based on the amount of electrostatic interaction and laser energy absorption by the surface ligands. However, those of MALDI-MS experiments indicated a significant signal improvement when achieving the colloidal stability of silica NPs in the matrix solution. CONCLUSIONS Based on the results, the surface properties of NPs affected the (MA)LDI-MS analyses indispensably. Finally, the functionalization of SPIONs represented a new model for the future development of NPs with both affinity and enhanced ionization abilities in mass spectrometry.
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Affiliation(s)
- Shokoofeh Maghari
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Erik Reimhult
- Department of Nanobiotechnology, Institute for Biologically Inspired Materials, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Parviz Ghezellou
- Institute of Inorganic and Analytical Chemistry, Justus Liebig University Giessen, Germany
| | - Alireza Ghassempour
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
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2
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Wang XN, Tang W, Gordon A, Wang HY, Xu L, Li P, Li B. Porous TiO 2 Film Immobilized with Gold Nanoparticles for Dual-Polarity SALDI MS Detection and Imaging. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42567-42575. [PMID: 32852188 DOI: 10.1021/acsami.0c12949] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Surface-assisted laser desorption/ionization (SALDI) mass spectrometry (MS) has become an attractive complementary approach to matrix-assisted laser desorption/ionization (MALDI) MS. SALDI MS has great potential for the detection of small molecules because of the absence of applied matrix. In this work, a functionalized porous TiO2 film immobilized with gold nanoparticles (AuNPs-FPTDF) was prepared to enhance SALDI MS performance. The porous TiO2 films were prepared by the facile sol-gel method and chemically functionalized for dense loading of AuNPs. The prepared AuNPs-FPTDF showed superior performance in the detection and imaging of small molecules in dual-polarity modes, with high detection sensitivity in the low pmol range, good repeatability, and low background noise compared to common organic MALDI matrixes. Its usage efficiently enhanced SALDI MS detection of various small molecules, such as amino acids and neurotransmitters, fatty acids, saccharides, alkaloids, and flavonoids, as compared with α-cyano-4-hydroxycinnamic acid, 9-aminoacridine, and the three precursor substrates of AuNPs-FPTDF. In addition, the blood glucose level in rats was successfully determined from a linearity concentration range of 0.5-9 mM, as well as other biomarkers in rat serum with SALDI MS. More importantly, the spatial distribution of metabolites from the intact flowers of the medicinal plant Catharanthus roseus was explored by using the AuNPs-FPTDF as an imprint SALDI MS substrate in dual-polarity modes. These results demonstrate wide applications and superior performances of the AuNPs-FPTDF as a multifunctional SALDI surface with enhanced detection sensitivity and imaging capabilities.
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Affiliation(s)
- Xian-Na Wang
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Weiwei Tang
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Andrew Gordon
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Hui-Ying Wang
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Linru Xu
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ping Li
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Bin Li
- State Key Laboratory of Natural Medicines and School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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Kuwata K, Itou K, Kotani M, Ohmura T, Naito Y. DIUTHAME enables matrix-free mass spectrometry imaging of frozen tissue sections. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8729. [PMID: 31951673 DOI: 10.1002/rcm.8729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/10/2020] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE A recently developed matrix-free laser desorption/ionization method, DIUTHAME (desorption ionization using through-hole alumina membrane), was examined for the feasibility of mass spectrometry imaging (MSI) applied to frozen tissue sections. The permeation behavior of DIUTHAME is potentially useful for MSI as positional information may not be distorted during the extraction of analytes from a sample. METHODS The through-hole porous alumina membranes used in the DIUTHAME chips were fabricated by wet anodization, were 5 μm thick, and had the desired values of 200 nm through-hole diameter and 50% open aperture ratio. Mouse brain frozen tissue sections on indium tin oxide (ITO)-coated slides were covered using the DIUTHAME chips and were subjected to MSI experiments in commercial time-of-flight mass spectrometers equipped with solid-state UV lasers after thawing and drying without matrix application. RESULT Mass spectra and mass images were successfully obtained from the frozen tissue sections using DIUTHAME as the ionization method. The mass spectra contained rich peaks in the phospholipid mass range free from the chemical background owing to there being no matrix-derived peaks in that range. DIUTHAME-MSI delivered high-quality mass images that reflected the anatomy of the brain tissue. CONCLUSIONS Analytes can be extracted from frozen tissue by capillary action of the through-holes in DIUTHAME and moisture contained in the tissue without distorting positional information of the analytes. The sample preparation for frozen tissue sections in DIUTHAME-MSI is simple, requiring no specialized skills or dedicated apparatus for matrix application. DIUTHAME can facilitate MSI at a low mass, as there is no interference from matrix-derived peaks, and should provide high-quality, reproducible mass images more easily than MALDI-MSI.
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Affiliation(s)
- Keiko Kuwata
- Nagoya University Institute of Transformative Bio-Molecules (WPI-ITbM), Furo-cho, Chikusa-ku, Nagoya, Japan
| | - Kayoko Itou
- Nagoya University Institute of Transformative Bio-Molecules (WPI-ITbM), Furo-cho, Chikusa-ku, Nagoya, Japan
| | | | | | - Yasuhide Naito
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Nishi-ku, Hamamatsu, Japan
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Rodzik A, Pomastowski P, Sagandykova GN, Buszewski B. Interactions of Whey Proteins with Metal Ions. Int J Mol Sci 2020; 21:E2156. [PMID: 32245108 PMCID: PMC7139725 DOI: 10.3390/ijms21062156] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/17/2022] Open
Abstract
Whey proteins tend to interact with metal ions, which have implications in different fields related to human life quality. There are two impacts of such interactions: they can provide opportunities for applications in food and nutraceuticals, but may lead to analytical challenges related to their study and outcomes for food processing, storage, and food interactions. Moreover, interactions of whey proteins with metal ions are complicated, requiring deep understanding, leading to consequences, such as metalloproteins, metallocomplexes, nanoparticles, or aggregates, creating a biologically active system. To understand the phenomena of metal-protein interactions, it is important to develop analytical approaches combined with studies of changes in the biological activity and to analyze the impact of such interactions on different fields. The aim of this review was to discuss chemistry of β-lactoglobulin, α-lactalbumin, and lactotransferrin, their interactions with different metal ions, analytical techniques used to study them and the implications for food and nutraceuticals.
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Affiliation(s)
- Agnieszka Rodzik
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Toruń, Poland; (A.R.); (G.N.S.); (B.B.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
| | - Gulyaim N. Sagandykova
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Toruń, Poland; (A.R.); (G.N.S.); (B.B.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Toruń, Poland; (A.R.); (G.N.S.); (B.B.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
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Sato H, Nakamura S, Fouquet T, Ohmura T, Kotani M, Naito Y. Molecular characterization of polyethylene oxide based oligomers by surface-assisted laser desorption/ionization mass spectrometry using a through-hole alumina membrane as active substrate. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8597. [PMID: 31520435 DOI: 10.1002/rcm.8597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/26/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Molecular characterization of industrial oligomeric products is performed using surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS), termed desorption ionization using a through-hole alumina membrane (DIUTHAME). This paper describes the unique feature of a DIUTHAME chip applying active SALDI, which generates specific types of fragments of polyglycol samples. METHODS Polyethylene oxide (PEO) and PEO-based materials were subjected to SALDI-MS. The influence of the presence or absence of a cationization salt on the mass spectrum was investigated. The resulting mass spectra composed of fragment ions were compared with those obtained by collision-induced dissociation (CID)-MS/MS. The specific fragment ions generated using the DIUTHAME chip were further subjected to high-energy CID-MS/MS. RESULTS The addition of a cationization salt resulted in SALDI mass spectra with fewer fragment peaks. The mass spectra obtained without adding the cationization salt were composed of many more fragment ions caused by in-source decay. The fragmentation pattern was similar to that seen with low-energy CID. The resulting fragment ions were formed by selective cleavage at the C-O bond. High-energy CID-MS/MS can be performed for the specific fragment ions generated by in-source decay fragmentation. CONCLUSIONS Molecular characterization of PEO-based oligomers by SALDI-MS using the DIUTHAME chip was successfully demonstrated. The selective fragmentation and high-energy CID-MS/MS of the in-source decay fragments made it possible to provide more detailed structural information. This unique feature of DIUTHAME gives it potential for use in new molecular characterization techniques.
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Affiliation(s)
- Hiroaki Sato
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Sayaka Nakamura
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Thierry Fouquet
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Takayuki Ohmura
- Hamamatsu Photonics KK, 314-5 Shimokanzo, Iwata, Shizuoka, 438-0193, Japan
| | - Masahiro Kotani
- Hamamatsu Photonics KK, 314-5 Shimokanzo, Iwata, Shizuoka, 438-0193, Japan
| | - Yasuhide Naito
- Graduate School for Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Nishi-ku, Hamamatsu, Shizuoka, 431-1202, Japan
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Zhang D, Wu HJ, Zhou X, Qi R, Xu L, Guo Y, Liu X. Enhanced thermal effect of plasmonic nanostructures confined in discoidal porous silicon particles. RSC Adv 2020; 10:30840-30847. [PMID: 35516029 PMCID: PMC9056356 DOI: 10.1039/d0ra03379k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/14/2020] [Indexed: 11/21/2022] Open
Abstract
The design of plasmonic nanostructures could have many exciting applications since it enhances or provides valuable control over efficient energy conversion. A three-dimensional (3D) space is a realistic hotspot matrix harvesting a wide conversion that has been shown in zero-dimensional nanoparticles, one-dimensional linear structures, or two-dimensional films. A novel 3D plasmonic nanostructure platform consisting of plasmonic metal nanoparticles in discoidal porous silicon particles is used in this study. Plasmonic gold nanoparticles are anchored inside the discoidal porous silicon (DPS) particles by in situ reduction synthesis. The novel plasmonic nanostructures can tailor the plasmon band and overcome the instability of photothermal materials. The “trapping well” for the anchored nanoparticles in 3D space can result in a huge change of plasmonic band of metal nanoparticles to the near-IR region in a novel 3D geometry. A multifunctional scaffold, Au–DPS particle, composed of doxorubicin conjugated to poly-(l-glutamic acid) (pDOX), was developed for combinatorial chemo-photothermal cancer therapy. The therapeutic efficacy was examined in treatment of the A549 cell line under near-IR laser irradiation. The highly efficient photothermal conversion can also be demonstrated in the laser desorption/ionization time-of-flight mass spectrometry detection analysis. The limit of detection was obviously improved in the detection of angiotensin II, P14R, and ACTH fragments 18-39 peptides. Overall, we envision that Au–DPS particles may be used in ultrasensitive theranostics in the future. A 3D plasmonic nanostructure with a tunable plasmon resonance band to the near IR region enabled ultrasensitive theranostics for enhanced thermal effect.![]()
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Affiliation(s)
- Dechen Zhang
- Key Laboratory for Molecular Enzymology and Engineering
- The Ministry of Education
- National Engineering Laboratory for AIDS Vaccine
- School of Life Sciences
- Jilin University
| | - Hung-jen Wu
- Department of Nanomedicine
- Houston Methodist Research Institute
- Houston
- USA
| | - Xinyu Zhou
- Department of Nanomedicine
- Houston Methodist Research Institute
- Houston
- USA
| | - Ruogu Qi
- Department of Nanomedicine
- Houston Methodist Research Institute
- Houston
- USA
| | - Li Xu
- Key Laboratory for Molecular Enzymology and Engineering
- The Ministry of Education
- National Engineering Laboratory for AIDS Vaccine
- School of Life Sciences
- Jilin University
| | - Yi Guo
- Key Laboratory for Molecular Enzymology and Engineering
- The Ministry of Education
- National Engineering Laboratory for AIDS Vaccine
- School of Life Sciences
- Jilin University
| | - Xuewu Liu
- Department of Nanomedicine
- Houston Methodist Research Institute
- Houston
- USA
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New Mass Spectrometric Approaches for the Quantitative Evaluation of Anticancer Drug Levels in Treated Patients. Ther Drug Monit 2019; 41:1-10. [PMID: 30422961 DOI: 10.1097/ftd.0000000000000573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Alternatively to the well-consolidated liquid chromatography coupled to tandem mass spectrometry approach used for the evaluation of anticancer drug concentrations in treated patients, new mass spectrometric methods have been proposed and tested recently. They exhibited faster analysis time and, at first sight, simpler instrumental approaches. However, results obtained by these methods require an in-depth evaluation, because of their strong dependence on the experimental set-up. In this short review, the quantification of irinotecan, sunitinib, and 6-α-hydroxy paclitaxel (the main metabolite of paclitaxel) by laser desorption ionization techniques (matrix-assisted laser desorption/ionization, nanostructure-assisted laser desorption/ionization, and surface-assisted laser desorption/ionization) is reported and discussed, showing the advantages but also the drawbacks of the methods. The matrix-assisted laser desorption/ionization approach led to the most reliable results, and the cross-validation for the quantitative analysis of irinotecan indicates that this method can be fruitfully used for therapeutic drug monitoring and pharmacokinetic studies. Another recently proposed technique, paper spray mass spectrometry, has been tested for the quantitative measurement of imatinib in plasma samples. Even if the approach is, at first sight, really simple, the parameterization of the analytical and instrumental aspects has required many efforts to reach satisfactory results. What it should be expected in the future is the evaluation of these methods, not only in scientific environments dedicated to instrument development, but also in clinical chemistry laboratories, to evaluate their effectiveness and to give new and valid tools for TDM and for other qualitative or quantitative measurements of biomedical interest.
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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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Chen PY, Hsieh CY, Shih CJ, Lin YJ, Tsao CW, Yang YL. Exploration of Fungal Metabolic Interactions Using Imaging Mass Spectrometry on Nanostructured Silicon. JOURNAL OF NATURAL PRODUCTS 2018; 81:1527-1533. [PMID: 29916245 DOI: 10.1021/acs.jnatprod.7b00866] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Application of matrix-assisted laser desorption/ionization imaging mass spectrometry to microbiology and natural product research has opened the door to the exploration of microbial interactions and the consequent discovery of new natural products and their functions in the interactions. However, several drawbacks of matrix-assisted laser desorption/ionization imaging mass spectrometry have limited its application especially to complicated and uneven microbial samples. Here, we applied nanostructured silicon as a substrate for surface-assisted laser desorption/ionization mass spectrometry for microbial imaging mass spectrometry to explore fungal metabolic interactions. We chose Phellinus noxius and Aspergillus strains to evaluate the potential of microbial imaging mass spectrometry on nanostructured silicon because both fungi produce a dense mass of aerial mycelia, which is known to complicate the collection of high-quality imaging mass spectrometry data. Our simple and straightforward sample imprinting method and low background interference resulted in an efficient analysis of small metabolites from the complex microbial interaction samples.
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Affiliation(s)
- Pi-Yu Chen
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
| | - Chi-Ying Hsieh
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
| | - Chao-Jen Shih
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
- Bioresource Collection and Research Center , Food Industry Research and Development Institute , 30062 Hsinchu , Taiwan
| | - Yuan-Jing Lin
- Department of Mechanical Engineering , National Central University , 32001 Taoyuan , Taiwan
| | - Chia-Wen Tsao
- Department of Mechanical Engineering , National Central University , 32001 Taoyuan , Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
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Fu CW, Lirio S, Shih YH, Liu WL, Lin CH, Huang HY. The Cooperativity of Fe3
O4
and Metal-Organic Framework as Multifunctional Nanocomposites for Laser Desorption Ionization Process. Chemistry 2018; 24:9598-9605. [DOI: 10.1002/chem.201800994] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Chung-Wei Fu
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
| | - Stephen Lirio
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
| | - Yung-Han Shih
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
| | - Wan-Ling Liu
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
- College of Science; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
| | - Chia-Her Lin
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
- R&D Center for Membrane Technology; Chung Yuan Christian University; 200 Chung Pei Road, Chung-Li District Taoyuan City 320 Taiwan
| | - Hsi-Ya Huang
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan, R.O.C
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11
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Nye LC, Hungerbühler H, Drewello T. Drawing a different picture with pencil lead as matrix-assisted laser desorption/ionization matrix for fullerene derivatives. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2018; 24:81-88. [PMID: 29105508 DOI: 10.1177/1469066717740719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Inspired by reports on the use of pencil lead as a matrix-assisted laser desorption/ionization matrix, paving the way towards matrix-free matrix-assisted laser desorption/ionization, the present investigation evaluates its usage with organic fullerene derivatives. Currently, this class of compounds is best analysed using the electron transfer matrix trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene] malononitrile (DCTB), which was employed as the standard here. The suitability of pencil lead was additionally compared to direct (i.e. no matrix) laser desorption/ionization-mass spectrometry. The use of (DCTB) was identified as the by far gentler method, producing spectra with abundant molecular ion signals and much reduced fragmentation. Analytically, pencil lead was found to be ineffective as a matrix, however, appears to be an extremely easy and inexpensive method for producing sodium and potassium adducts.
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Affiliation(s)
- Leanne C Nye
- 1 Department of Surgery and Cancer, Imperial College, London, UK
| | | | - Thomas Drewello
- 3 Physical Chemistry I, 426801 Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg , Erlangen, Germany
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Abdelmaksoud HH, Guinan TM, Voelcker NH. Fabrication of Nanostructured Mesoporous Germanium for Application in Laser Desorption Ionization Mass Spectrometry. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5092-5099. [PMID: 28107617 DOI: 10.1021/acsami.6b14362] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) is a high-throughput analytical technique ideally suited for small-molecule detection from different bodily fluids (e.g., saliva, urine, and blood plasma). Many SALDI-MS substrates require complex fabrication processes and further surface modifications. Furthermore, some substrates show instability upon exposure to ambient conditions and need to be kept under special inert conditions. We have successfully optimized mesoporous germanium (meso-pGe) using bipolar electrochemical etching and efficiently applied meso-pGe as a SALDI-MS substrate for the detection of illicit drugs such as in the context of workplace, roadside, and antiaddictive drug compliance. Argon plasma treatment improved the meso-pGe efficiency as a SALDI-MS substrate and eliminated the need for surface functionalization. The resulting substrate showed a precise surface geometry tuning by altering the etching parameters, and an outstanding performance for illicit drug detection with a limit of detection in Milli-Q water of 1.7 ng/mL and in spiked saliva as low as 5.3 ng/mL for cocaine. The meso-pGe substrate had a demonstrated stability over 56 days stored in ambient conditions. This proof-of-principle study demonstrates that meso-pGe can be reproducibly fabricated and applied as an analytical SALDI-MS substrate which opens the door for further analytical and forensic high-throughput applications.
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Affiliation(s)
- Hazem H Abdelmaksoud
- Future Industries Institute, University of South Australia , University Boulevard, Mawson Lakes, Adelaide, 5095 South Australia, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , GPO Box 2471, Adelaide, South Australia 5001, Australia
| | - Taryn M Guinan
- Future Industries Institute, University of South Australia , University Boulevard, Mawson Lakes, Adelaide, 5095 South Australia, Australia
| | - Nicolas H Voelcker
- Future Industries Institute, University of South Australia , University Boulevard, Mawson Lakes, Adelaide, 5095 South Australia, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , GPO Box 2471, Adelaide, South Australia 5001, Australia
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13
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Gross JH. Matrix-Assisted Laser Desorption/Ionization. Mass Spectrom (Tokyo) 2017. [DOI: 10.1007/978-3-319-54398-7_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bernier MC, Wysocki VH, Dagan S. Laser desorption ionization of small molecules assisted by tungsten oxide and rhenium oxide particles. JOURNAL OF MASS SPECTROMETRY : JMS 2015; 50:891-8. [PMID: 26349643 PMCID: PMC4566159 DOI: 10.1002/jms.3597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 03/04/2015] [Accepted: 03/25/2015] [Indexed: 05/11/2023]
Abstract
Inorganic metal oxides have shown potential as matrices for assisting in laser desorption ionization with advantages over the aromatic acids typically used. Rhenium and tungsten oxides are attractive options due to their high work functions and relative chemical inertness. In this work, it is shown that ReO3 and WO3 , in microparticle (μP) powder forms, can efficiently facilitate ionization of various types of small molecules and provide minimized background contamination at analyte concentrations below 1 ng/µL. This study shows that untreated inorganic WO3 and ReO3 particles are valid matrix options for detection of protonatable, radical, and precharged species under laser desorption ionization. Qualitatively, the WO3 μP showed improved detection of apigenin, sodiated glucose, and precharged analyte choline, while the ReO3 μP allowed better detection of protonated cocaine, quinuclidine, ametryn, and radical ions of polyaromatic hydrocarbons at detection levels as low as 50 pg/µL. For thermometer ion survival yield experiments, it was also shown that the ReO3 powder was significantly softer than α-cyano-4-hydroxycinnaminic acid. Furthermore, it provided higher intensities of cocaine and polyaromatic hydrocarbons, at laser flux values equal to those used with α-cyano-4-hydroxycinnaminic acid.
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Affiliation(s)
| | | | - Shai Dagan
- Permanent address: Israel Institute for Biological Research, Ness Ziona, Israel
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15
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Ohara K, Nakai A, Yamaguchi K. Laser desorption ionization of stilbenes in crystalline sponge. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2015; 21:413-421. [PMID: 26307722 DOI: 10.1255/ejms.1319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The laser desorption (LD) ionization of three stilbenes in the nano porous metal-organic frameworks called "crystalline sponge" is demonstrated. The analyte position in the pore and the interaction between the analyte and the framework that functions as a matrix are discussed based on the results of single- crystal X-ray analysis. It is confirmed that the analyte/ligand ratio of 1:2 is sufficient for the analyte ionization. This method makes it possible to visualize hot spots on a target plate to be irradiated. That the sample requirement is dramatically reduced to the order of femtomoles is also an advantage. The relationship between laser interaction, analyte position in the pore, and analyte/ligand ratio is discussed as a new ionization field to elucidate the molecular structure of the analyte by LD ionization mass spectrometry.
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Affiliation(s)
- Kazuaki Ohara
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan.
| | - Ayaka Nakai
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan.
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769- 2193, Japan.
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16
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Lateral resolution in NALDI MSI: back to the future. Anal Bioanal Chem 2014; 407:2141-7. [DOI: 10.1007/s00216-014-8294-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/13/2014] [Accepted: 10/21/2014] [Indexed: 11/25/2022]
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Alhmoud HZ, Guinan TM, Elnathan R, Kobus H, Voelcker NH. Surface-assisted laser desorption/ionization mass spectrometry using ordered silicon nanopillar arrays. Analyst 2014; 139:5999-6009. [DOI: 10.1039/c4an01391c] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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18
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Traldi P, Calandra E, Crotti S, Agostini M, Nitti D, Roverso M, Toffoli G, Marangon E, Posocco B. Matrix-assisted laser desorption/ionization, nanostructure-assisted laser desorption/ionization and carbon nanohorns in the detection of antineoplastic drugs. 1. The cases of irinotecan, sunitinib and 6-alpha-hydroxy paclitaxel. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2014; 20:445-459. [PMID: 25905869 DOI: 10.1255/ejms.1302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The development of surface-assisted laser desorption/ionization (SALDI) methodologies in mass spectrometry allows, in principle, the development of new analytical approaches to qualitative and quantitative measurements on small molecules. Some of these methods have been applied to characterize two antineoplastic drugs: irinotecan (1) and sunitinib (2), and also 6-α-hydroxy-paclitaxel (3), the main metabolite of paclitaxel. Three different SALDI approaches have been tested employing nanostructure- assisted laser desorption/ionization (NALDI), carbon nanohorns (NHs) and carbon nanohorns covered by liquid additives. The results so obtained have been compared to those observed under matrix-assisted laser desorption/ionization (MALDI) conditions. Compounds 1 and 2 show the easy formation of protonated molecular species under all the experimental conditions, but the highest absolute intensity was achieved by NALDI. On the contrary, ionic species of low intensity are present for 3, among which are those that exhibit the highest intensity caused by [M+K](+) ions. After a critical evaluation of the obtained data, the linear response of the [M+H](+) ion intensity of 1 versus different deposited sample amounts was investigated, and the best results (R(2) = 0.9889) were obtained under MALDI conditions. The analysis of plasma samples spiked with 1 showed, again, that the MALDI approach was the best one (R(2) = 0.9766). The failure of NALDI measurements could be rationalized by the presence of ion suppression effects.
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Affiliation(s)
- Pietro Traldi
- IENI CNR, Corso Stati Uniti 4, 35127 Padova (PD), Italy. Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy.
| | - Eleonora Calandra
- Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy. Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Sara Crotti
- Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy. Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Marco Agostini
- Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy. Surgical Clinic, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Via Nicolo Giustiniani 2, 35128 Padova, Italy. Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Avenue, Houston, 77030 TX, USA.
| | - Donato Nitti
- Surgical Clinic, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Via Nicolo Giustiniani 2, 35128 Padova, Italy.
| | - Marco Roverso
- Dipartimento di Medicina, Università degli Studi di Padova, Via Giustiniani 2, I-35100 Padova, Italy.
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Elena Marangon
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Bianca Posocco
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
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Fleith C, Cantel S, Subra G, Mehdi A, Ciccione J, Martinez J, Enjalbal C. Laser desorption ionization mass spectrometry of peptides on a hybrid CHCA organic–inorganic matrix. Analyst 2014; 139:3748-54. [DOI: 10.1039/c3an01465g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report applications of new hybrid organic–inorganic silica based materials as laser desorption/ionization (LDI)-promoting surfaces for high-throughput identification of peptides.
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Affiliation(s)
- Clément Fleith
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Sonia Cantel
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Gilles Subra
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Ahmad Mehdi
- Institut Charles Gerhardt
- UMR 5253
- CMOS
- CC1701
- Université Montpellier 2
| | - Jeremie Ciccione
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Christine Enjalbal
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
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Jaschinski T, Svatoš A, Pohnert G. Laser desorption/ionization mediated by bionanostructures from microalgae. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:109-116. [PMID: 23239323 DOI: 10.1002/rcm.6444] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 10/15/2012] [Accepted: 10/17/2012] [Indexed: 06/01/2023]
Abstract
RATIONALE Organic matrices are the state-of-the-art ionization mediators in Laser Desorption/Ionization Mass Spectrometry (LDI-MS). Despite improvements in understanding matrix chemistry, interfering matrix-related signals complicate the analysis. Surface-assisted LDI techniques like desorption/ionization on silicon (DIOS) or nanostructure initiator mass spectrometry (NIMS) provide promising alternatives but rely often on elaborate materials. METHODS We introduce nanopatterned biomineralized cell walls of microalgae as easily accessible biological surfaces that support the ionization of embedded molecules in LDI-MS. Microalgae cell walls were cleaned through oxidation and washing before pipetting on a stainless-steel matrix-assisted laser desorption/ionization (MALDI) target. Added molecules were efficiently ionized in positive and negative ionization mode in common MALDI sources. The method was rigorously validated by comparison with established MALDI experiments. RESULTS Ionization of PEG600, D-sphingosine and raffinose was successfully mediated by nanostructured cell wall preparations from two different microalgae. Without any change in protocol, steric acid could be detected in the negative ionization mode. Ionization is also supported by commercially available celite, a material containing mineralized diatom cell walls. Characteristic ingredients of fresh coffee were detected in LDI-MS after pipetting it on celite without further sample preparation. Caffeine and saccharose were detected in positive and characteristic fatty acids in negative ionization mode. Detection limits were comparable to established MALDI experiments. CONCLUSIONS Bionanostructure-enhanced ionization allows the analysis of a diverse selection of analytes including polymers, sugars, amino alcohols, and organic acids without interfering matrix signals. We also show that celite, a commercially available porous material containing mineralized algal bionanostructures, supports LDI-MS.
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Affiliation(s)
- Tino Jaschinski
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743, Jena, Germany
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21
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Dupré M, Enjalbal C, Cantel S, Martinez J, Megouda N, Hadjersi T, Boukherroub R, Coffinier Y. Investigation of Silicon-Based Nanostructure Morphology and Chemical Termination on Laser Desorption Ionization Mass Spectrometry Performance. Anal Chem 2012; 84:10637-44. [DOI: 10.1021/ac3021104] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Mathieu Dupré
- Institut des Biomolécules
Max Mousseron, UMR 5247, Universités Montpellier 1 et 2, CNRS, Bâtiment Chimie (17), Université
Montpellier 2, Place Eugène Bataillon, 34095 Montpellier Cedex
5, France
| | - Christine Enjalbal
- Institut des Biomolécules
Max Mousseron, UMR 5247, Universités Montpellier 1 et 2, CNRS, Bâtiment Chimie (17), Université
Montpellier 2, Place Eugène Bataillon, 34095 Montpellier Cedex
5, France
| | - Sonia Cantel
- Institut des Biomolécules
Max Mousseron, UMR 5247, Universités Montpellier 1 et 2, CNRS, Bâtiment Chimie (17), Université
Montpellier 2, Place Eugène Bataillon, 34095 Montpellier Cedex
5, France
| | - Jean Martinez
- Institut des Biomolécules
Max Mousseron, UMR 5247, Universités Montpellier 1 et 2, CNRS, Bâtiment Chimie (17), Université
Montpellier 2, Place Eugène Bataillon, 34095 Montpellier Cedex
5, France
| | - Nacéra Megouda
- Institut de Recherche Interdisciplinaire, USR CNRS 3078, Parc de la Haute
Borne, 50 avenue de Halley, BP 70478, 59658 Villeneuve d’Ascq,
France
- Unité de Développement de la Technologie du Silicium, 2 Bd. Frantz Fanon, B.P.
140 Alger-7 merveilles, Alger, Algérie
| | - Toufik Hadjersi
- Unité de Développement de la Technologie du Silicium, 2 Bd. Frantz Fanon, B.P.
140 Alger-7 merveilles, Alger, Algérie
| | - Rabah Boukherroub
- Institut de Recherche Interdisciplinaire, USR CNRS 3078, Parc de la Haute
Borne, 50 avenue de Halley, BP 70478, 59658 Villeneuve d’Ascq,
France
| | - Yannick Coffinier
- Institut de Recherche Interdisciplinaire, USR CNRS 3078, Parc de la Haute
Borne, 50 avenue de Halley, BP 70478, 59658 Villeneuve d’Ascq,
France
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Dupré M, Cantel S, Durand JO, Martinez J, Enjalbal C. Silica nanoparticles pre-spotted onto target plate for laser desorption/ionization mass spectrometry analyses of peptides. Anal Chim Acta 2012; 741:47-57. [DOI: 10.1016/j.aca.2012.06.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2012] [Revised: 06/20/2012] [Accepted: 06/24/2012] [Indexed: 11/29/2022]
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Yoshioka K, Ando D, Watanabe T. A comparative study of matrix- and nano-assisted laser desorption/ionisation time-of-flight mass spectrometry of isolated and synthetic lignin. PHYTOCHEMICAL ANALYSIS : PCA 2012; 23:248-253. [PMID: 21898628 DOI: 10.1002/pca.1350] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 06/29/2011] [Accepted: 06/29/2011] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Lignin is the second most abundant biopolymer next to cellulose. However, because of the complexity of the heterogeneous macromolecules, it is difficult to elucidate the polymeric structures of lignin by conventional analytical methods. OBJECTIVE To obtain the detailed structures of lignin, we comparatively applied nano-assisted laser desorption/ionisation time-of-flight mass spectrometry (NALDI-TOF MS) and matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF MS). METHODOLOGY Synthetic lignin from coniferyl alcohol and an isolated lignin from Pinus densiflora were subjected to NALDI- and MALDI-TOF MS. RESULTS We first obtained NALDI-TOF MS of synthetic and isolated lignin. Mass increments of 178 and 196 Da were observed in NALDI- and MALDI-TOF mass spectra of the synthetic and isolated lignin. The mass intervals indicated that radical coupling forming β-O-4 bonds is the major pathway. Peaks in the low molecular mass region between m/z 500 and 800 were observed more extensively using NALDI-TOF MS than MALDI-TOF MS, which enabled detailed analysis of the interunit linkages in lignin. CONCLUSION Owing to the ionisation profile differentiation from MALDI-TOF MS, NALDI-TOF MS is useful for the structural analysis of lignin.
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Affiliation(s)
- Koichi Yoshioka
- Laboratory of Biomass Conversion, Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Dupré M, Coffinier Y, Boukherroub R, Cantel S, Martinez J, Enjalbal C. Laser desorption ionization mass spectrometry of protein tryptic digests on nanostructured silicon plates. J Proteomics 2012; 75:1973-90. [DOI: 10.1016/j.jprot.2011.12.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 12/19/2011] [Accepted: 12/27/2011] [Indexed: 10/14/2022]
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Kuzema PA. Small-molecule analysis by surface-assisted laser desorption/ionization mass spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1134/s1061934811130065] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Pavlásková K, Strnadová M, Strohalm M, Havlíček V, Šulc M, Volný M. Time-Dependent Oxidation during Nano-Assisted Laser Desorption Ionization Mass Spectrometry: A Useful Tool for Structure Determination or a Source of Possible Confusion? Anal Chem 2011; 83:5661-5. [DOI: 10.1021/ac200801t] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kateřina Pavlásková
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20 Czech Republic
| | - Marcela Strnadová
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20 Czech Republic
| | - Martin Strohalm
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20 Czech Republic
| | - Vladimír Havlíček
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20 Czech Republic
- Department of Analytical Chemistry, Faculty of Science, Palacky University, 17. listopadu 12, CZ-771 46 Olomouc, Czech Republic
| | - Miroslav Šulc
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20 Czech Republic
| | - Michael Volný
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20 Czech Republic
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Gross JH. Matrix-Assisted Laser Desorption/Ionization. Mass Spectrom (Tokyo) 2011. [DOI: 10.1007/978-3-642-10711-5_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Subra G, Mehdi A, Enjalbal C, Amblard M, Brunel L, Corriu R, Martinez J. Functionalised mesoporous silica: a good opportunity for controlled peptide oligomerisation. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04492j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Qiao L, Liu B, Girault HH. Nanomaterial-assisted laser desorption ionization for mass spectrometry-based biomedical analysis. Nanomedicine (Lond) 2010; 5:1641-52. [DOI: 10.2217/nnm.10.127] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nanomaterials have been widely used to assist laser desorption ionization of biomolecules for mass spectrometry analysis. Compared with classical matrix-assisted laser desorption ionization, strategies based on nanomaterial-assisted ionization generate a clean background, which is of great benefit for the qualitative and quantitative analysis of small biomolecules, such as therapeutic and diagnostic molecules. As label-free platforms, they have successfully been used for high-throughput enzyme activity/inhibition monitoring and also for tissue imaging to map in situ the distribution of peptides, metabolites and drugs. In addition to widely used porous silicon nanomaterials, gold nanoparticles can be easily chemically modified by thiol-containing compounds, opening novel interesting perspectives. Such functionalized nanoparticles have been used both as probes to extract target molecules and as matrices to assist laser desorption ionization for developing new enzyme immunoassays or for studying DNA hybridization. More recently, semiconductor nanomaterials or quantum dots acting as photosensitive centers to induce in-source redox reactions for proteomics and to investigate biomolecule oxidation for metabolomics have been shown to offer new analytical strategies.
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Affiliation(s)
- Liang Qiao
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - BaoHong Liu
- Department of Chemistry, Fudan University, Shanghai, P.R. China
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Drexler DM, Reily MD, Shipkova PA. Advances in mass spectrometry applied to pharmaceutical metabolomics. Anal Bioanal Chem 2010; 399:2645-53. [PMID: 21107980 DOI: 10.1007/s00216-010-4370-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 10/15/2010] [Accepted: 10/19/2010] [Indexed: 01/08/2023]
Abstract
Metabolomics, also referred to in the literature as metabonomics, is a relatively new systems biology tool for drug discovery and development and is increasingly being used to obtain a detailed picture of a drug's effect on the body. Metabolomics is the qualitative assessment and relative or absolute quantitative measurement of the endogenous metabolome, defined as the complement of all native small molecules (metabolites less than 1,500 Da). A metabolomics study frequently involves the comparative analysis of sample sets from a normal state and a perturbed state, where the perturbation can be of any nature, such as genetic knockout, administration of a drug, or change in diet or lifestyle. Advances in mass spectrometry (MS) technologies including direct introduction or in-line chromatographic separation modes, ionization techniques, mass analyzers, and detection methods have provided powerful tools to assess the molecular changes in the metabolome. This review focuses on advances in MS pertaining to the analytical data generation for the main metabolomics methods, namely, fingerprinting, nontargeted, and targeted approaches, as they are applied to pharmaceutical drug discovery and development.
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Affiliation(s)
- Dieter M Drexler
- Research and Development - Discovery Analytical Sciences, Bristol-Myers Squibb Company, Wallingford, CT 06492, USA.
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31
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Recent advances in SALDI-MS techniques and their chemical and bioanalytical applications. Anal Bioanal Chem 2010; 399:2597-622. [DOI: 10.1007/s00216-010-4063-3] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2010] [Revised: 07/18/2010] [Accepted: 07/23/2010] [Indexed: 10/19/2022]
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Suni NM, Haapala M, Färm E, Härkönen E, Ritala M, Sainiemi L, Franssila S, Kotiaho T, Kostiainen R. Fabrication of nanocluster silicon surface with electric discharge and the application in desorption/ionization on silicon-mass spectrometry. LAB ON A CHIP 2010; 10:1689-1695. [PMID: 20386863 DOI: 10.1039/b927181c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study presents a new, simple, and low-cost technique to fabricate a nanocluster silicon (NCSi) surface on planar silicon using a micro-scale direct current (DC) discharge under ambient conditions. The method requires no masks, chemicals, vacuum environment, or laser, but only a high-voltage supply. The NCSi surfaces, characterized by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy, consist of oxidized silicon nanoclusters 50-200 nm in diameter, likely formed by melting due to high temperatures in the discharge. The minimum size of the NCSi spot is determined by the size of the discharge tip (approximately 90 microm). Arbitrary NCSi areas can be produced on a silicon wafer by moving the discharge needle on the surface with the help of a computer-controlled xyz stage. NCSi surfaces can also be formed on three-dimensional (3D) surfaces, as demonstrated with silicon micropillars. NCSi surfaces can be used, for example, in various analytical applications. In this study, we demonstrate their use as sample plates in the analysis of drugs and peptides with desorption/ionization on silicon-mass spectrometry (DIOS-MS).
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Affiliation(s)
- Niina M Suni
- Division of Pharmaceutical Chemistry, University of Helsinki, P. O. Box 56, FI-00014, Finland
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Wyatt MF, Ding S, Stein BK, Brenton AG, Daniels RH. Analysis of various organic and organometallic compounds using nanostructure-assisted laser desorption/ionization time-of-flight mass spectrometry (NALDI-TOFMS). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2010; 21:1256-1259. [PMID: 20434924 DOI: 10.1016/j.jasms.2010.03.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Revised: 03/24/2010] [Accepted: 03/27/2010] [Indexed: 05/29/2023]
Abstract
Nanostructure-assisted laser desorption/ionization time-of-flight mass spectrometry (NALDI-TOFMS) has been developed recently as a matrix-free/surface-assisted alternative to matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS). The NALDI surface of silicon nanowires is already very effective for the analysis of small to medium sized, polar organic molecules in positive ion mode. The current study examined this technology for the analysis of several nonpolar organic, organometallic, and ionic compounds in positive ion mode, as well as a fluorinated compound and various acids in negative ion mode. NALDI data are compared and contrasted with MALDI data for the same compounds, and the higher sensitivity of NALDI is highlighted by the successful characterization of two porphyrins for a sample amount of 10 amol per spot.
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Affiliation(s)
- Mark F Wyatt
- EPSRC National Mass Spectrometry Service Centre (NMSSC), Institute of Mass Spectrometry (IMS), School of Medicine, Swansea University, Swansea, United Kingdom.
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Vidová V, Novák P, Strohalm M, Pól J, Havlíček V, Volný M. Laser Desorption-Ionization of Lipid Transfers: Tissue Mass Spectrometry Imaging without MALDI Matrix. Anal Chem 2010; 82:4994-7. [DOI: 10.1021/ac100661h] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Veronika Vidová
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20, Czech Republic, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tř. 17.listopadu 12, CZ-771 46 Olomouc, Czech Republic, and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, CZ-12840, Czech Republic
| | - Petr Novák
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20, Czech Republic, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tř. 17.listopadu 12, CZ-771 46 Olomouc, Czech Republic, and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, CZ-12840, Czech Republic
| | - Martin Strohalm
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20, Czech Republic, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tř. 17.listopadu 12, CZ-771 46 Olomouc, Czech Republic, and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, CZ-12840, Czech Republic
| | - Jaroslav Pól
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20, Czech Republic, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tř. 17.listopadu 12, CZ-771 46 Olomouc, Czech Republic, and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, CZ-12840, Czech Republic
| | - Vladimír Havlíček
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20, Czech Republic, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tř. 17.listopadu 12, CZ-771 46 Olomouc, Czech Republic, and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, CZ-12840, Czech Republic
| | - Michael Volný
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the ASCR, v.v.i., Vídeňská 1083, Prague 4, CZ-142 20, Czech Republic, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tř. 17.listopadu 12, CZ-771 46 Olomouc, Czech Republic, and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, CZ-12840, Czech Republic
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Abstract
The use of MS imaging (MSI) to resolve the spatial and pharmacodynamic distributions of compounds in tissues is emerging as a powerful tool for pharmacological research. Unlike established imaging techniques, only limited a priori knowledge is required and no extensive manipulation (e.g., radiolabeling) of drugs is necessary prior to dosing. MS provides highly multiplexed detection, making it possible to identify compounds, their metabolites and other changes in biomolecular abundances directly off tissue sections in a single pass. This can be employed to obtain near cellular, or potentially subcellular, resolution images. Consideration of technical limitations that affect the process is required, from sample preparation through to analyte ionization and detection. The techniques have only recently been adapted for imaging and novel variations to the established MSI methodologies will further enhance the application of MSI for pharmacological research.
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ARAKAWA R, KAWASAKI H. Functionalized Nanoparticles and Nanostructured Surfaces for Surface-Assisted Laser Desorption/Ionization Mass Spectrometry. ANAL SCI 2010; 26:1229-40. [DOI: 10.2116/analsci.26.1229] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Ryuichi ARAKAWA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Hideya KAWASAKI
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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