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1,292 Results Found

  • Review
  • Open Access
89 Citations
16,474 Views
16 Pages

Matrix-Assisted Laser Desorption/Ionization Imaging Mass Spectrometry

  • Nobuhiro Zaima,
  • Takahiro Hayasaka,
  • Naoko Goto-Inoue and
  • Mitsutoshi Setou

7 December 2010

Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) is a powerful tool that enables the simultaneous detection and identification of biomolecules in analytes. MALDI-imaging mass spectrometry (MALDI-IMS) is a two-dimensional MALDI...

  • Review
  • Open Access
18 Citations
6,003 Views
31 Pages

Ionic liquids (ILs) have advanced a variety of applications, including matrix-assisted laser desorption/ionization–mass spectrometry (MALDI–MS). ILs can be used as matrices and solvents for analyte extraction and separation prior to analy...

  • Article
  • Open Access
1 Citations
964 Views
14 Pages

28 August 2025

This paper introduces a novel Lateral Extraction Enhanced Desorption Electrospray Ionization (LEE-DESI) source. This source is specifically designed to tackle the crucial issue of electric field interference in dual-channel ambient ionization mass sp...

  • Communication
  • Open Access
3 Citations
2,818 Views
10 Pages

4 November 2022

Nanospray desorption electrospray ionization (nano-DESI) is one of the ambient desorption ionization methods for mass spectrometry (MS), and it utilizes a steady-state liquid junction formed between two microcapillaries to directly extract analytes f...

  • Article
  • Open Access
13 Citations
5,435 Views
12 Pages

8 July 2017

The dynamic pore systems and high surface areas of flexible metal–organic framework materials make them excellent candidates to be used in different kinds of adsorption processes. However, the adsorption and desorption behaviors of therapeutic drugs...

  • Review
  • Open Access
4 Citations
3,371 Views
16 Pages

20 March 2024

Urinary tract cancers, including those of the bladder, the kidneys, and the prostate, represent over 12% of all cancers, with significant global incidence and mortality rates. The continuous challenge that these cancers present necessitates the devel...

  • Article
  • Open Access
21 Citations
5,849 Views
15 Pages

Towards Better Understanding of Pea Seed Dormancy Using Laser Desorption/Ionization Mass Spectrometry

  • Monika Cechová,
  • Markéta Válková,
  • Iveta Hradilová,
  • Anna Janská,
  • Aleš Soukup,
  • Petr Smýkal and
  • Petr Bednář

21 October 2017

Seed coats of six pea genotypes contrasting in dormancy were studied by laser desorption/ionization mass spectrometry (LDI-MS). Multivariate statistical analysis discriminated dormant and non-dormant seeds in mature dry state. Separation between dorm...

  • Feature Paper
  • Review
  • Open Access
96 Citations
12,846 Views
21 Pages

Matrix-assisted laser desorption/ionization (MALDI), a soft ionization method, coupling with time-of-flight mass spectrometry (TOF MS) has become an indispensible tool for analyzing macromolecules, such as peptides, proteins, nucleic acids and polyme...

  • Communication
  • Open Access
1 Citations
3,370 Views
8 Pages

13 November 2021

For many applications, TiO2 must have a unique surface structure responsible for its desirable physicochemical properties. Therefore the fast and easy methods of TiO2 surface characterization are of great interest. Heated TiO2 samples and dye-modifie...

  • Review
  • Open Access
6 Citations
5,598 Views
8 Pages

17 February 2022

Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) is an advanced technique that uses minimum fragmented ions from complex molecules for mass spectrometry (MS) analysis (tissue profiling by mass spectrometry). It is able to anal...

  • Article
  • Open Access
9 Citations
3,817 Views
19 Pages

1 January 2022

Untargeted lipidomics has previously been applied to the study of daphnids and the discovery of biomarkers that are indicative of toxicity. Typically, liquid chromatography—mass spectrometry is used to measure the changes in lipid abundance in...

  • Article
  • Open Access
27 Citations
4,692 Views
8 Pages

1 April 2020

Mass spectrometry imaging (MSI) using matrix-assisted laser desorption/ionization (MALDI) is a powerful technique for visualizing metabolites in the strawberry fruit. During sample preparation for MALDI-MSI, sectioning of the samples is usually requi...

  • Article
  • Open Access
5 Citations
7,124 Views
10 Pages

Molecular Beam-Thermal Desorption Spectrometry (MB-TDS) Monitoring of Hydrogen Desorbed from Storage Fuel Cell Anodes

  • Rui F. M. Lobo,
  • Diogo M. F. Santos,
  • Cesar A. C. Sequeira and
  • Jorge H. F. Ribeiro

6 February 2012

Different types of experimental studies are performed using the hydrogen storage alloy (HSA) MlNi3.6Co0.85Al0.3Mn0.3 (Ml: La-rich mischmetal), chemically surface treated, as the anode active material for application in a proton exchange membrane fuel...

  • Article
  • Open Access
8 Citations
3,056 Views
8 Pages

Application of Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging for Evaluating the Quality of Fish Fillets

  • Mizuki Morisasa,
  • Keisuke Kimura,
  • Motoki Sumida,
  • Saya Fukumoto,
  • Tadashi Tamura,
  • Riko Takeuchi,
  • Tsukasa Mori and
  • Naoko Goto-Inoue

1 April 2020

Consumption of fish is rapidly increasing worldwide. It is important to evaluate fish fillet quality because fish undergoes physical and chemical changes during frozen storage. Fish fillets exhibit formaldehyde (FA) accumulation from the decompositio...

  • Technical Note
  • Open Access
6 Citations
4,342 Views
8 Pages

Ruminal Lipid A Analysis by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

  • Efstathios Sarmikasoglou,
  • James R. Vinyard,
  • Mohamed S. Khan,
  • Treenate Jiranantasak,
  • Anay Ravelo,
  • Richard R. Lobo,
  • Peixin Fan,
  • Kwangcheol C. Jeong,
  • Apichai Tuanyok and
  • Antonio Faciola

Lipopolysaccharides (LPS) are cell wall components from Gram-negative bacteria and are composed of three covalently linked regions: the O-antigen, the core oligosaccharide, and the lipid A moiety, which carries most of their endotoxic activity. The o...

  • Article
  • Open Access
1 Citations
1,960 Views
10 Pages

Use of X-ray Microscopy for Confirmation of Crystallinity Detection in Amorphous Formulations by Electrospray Laser Desorption Ionization Mass Spectrometry Imaging

  • Kelsey K. Ramp,
  • Noah R. Dierckman,
  • Margaret A. Sperry,
  • Matthew E. Reuter,
  • Yongan Tang,
  • Gregory K. Webster and
  • Patrick A. McVey

24 September 2023

The use of mass spectrometry imaging for crystallinity detection offers improved matrix selectivity and sensitivity over the techniques, such as X-ray microscopy and Raman spectrometry, that are traditionally used with this work. Crystallinity is obs...

  • Article
  • Open Access
8 Citations
2,653 Views
12 Pages

Nanostructured Layer of Silver for Detection of Small Biomolecules in Surface-Assisted Laser Desorption Ionization Mass Spectrometry

  • Adrian Arendowski,
  • Gulyaim Sagandykova,
  • Radik Mametov,
  • Katarzyna Rafińska,
  • Oleksandra Pryshchepa and
  • Paweł Pomastowski

8 June 2022

A facile approach for the synthesis of a silver nanostructured layer for application in surface-assisted laser desorption/ionization mass spectrometry of low-molecular-weight biomolecules was developed using electrochemical deposition. The deposition...

  • Opinion
  • Open Access
4 Citations
2,327 Views
28 Pages

5 September 2024

Proteins, saccharides, and low molecular organic compounds in the blood, urine, and saliva could potentially serve as biomarkers for diseases related to diet, lifestyle, and the use of illegal drugs. Lifestyle-related diseases (LSRDs) such as diabete...

  • Communication
  • Open Access
16 Citations
3,335 Views
12 Pages

9 January 2021

This study aimed to detect and quantify mycotoxins on building materials using innovative laser mass spectroscopy methods—silver-109/silver/gold nanoparticle-enhanced target surface-assisted laser desorption/ionisation mass spectrometry (109AgN...

  • Review
  • Open Access
19 Citations
7,527 Views
15 Pages

28 April 2014

Identifying trace amounts of bacteria rapidly, accurately, selectively, and with high sensitivity is important to ensuring the safety of food and diagnosing infectious bacterial diseases. Microbial diseases constitute the major cause of death in many...

  • Article
  • Open Access
22 Citations
7,494 Views
9 Pages

15 April 2019

This study describes a methodology for evaluating regulatory levels of phthalate contamination. By collecting experimental data on short-term phthalate migration using thermal desorption–gas chromatography–mass spectrometry (TD–GC&n...

  • Article
  • Open Access
9 Citations
2,200 Views
11 Pages

Spatial Distribution and Migration Characteristic of Forchlorfenuron in Oriental Melon Fruit by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging

  • Qi Wang,
  • Xiaohui Li,
  • Hongping Wang,
  • Simeng Li,
  • Chen Zhang,
  • Xueying Chen,
  • Jing Dong,
  • Hua Shao,
  • Jing Wang and
  • Fen Jin

27 July 2023

Forchlorfenuron is a widely used plant growth regulator to support the pollination and fruit set of oriental melons. It is critical to investigate the spatial distribution and migration characteristics of forchlorfenuron among fruit tissues to unders...

  • Article
  • Open Access
7 Citations
2,492 Views
13 Pages

21 December 2023

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI–TOF MS) is a commonly used technique for analyzing large biomolecules. However, the utilization of organic matrices limits the small-molecule analysis because o...

  • Feature Paper
  • Article
  • Open Access
7 Citations
4,881 Views
10 Pages

18 July 2019

Carbon nanowalls (CNWs), vertically standing highly crystallizing graphene sheets, were used in the application of a surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF-MS). The CNW substrates solved the issues on...

  • Article
  • Open Access
6 Citations
3,219 Views
17 Pages

Application of Direct Thermal Desorption–Gas Chromatography–Mass Spectrometry for Determination of Volatile and Semi-Volatile Organosulfur Compounds in Onions: A Novel Analytical Approach

  • Ana V. González-de-Peredo,
  • Mercedes Vázquez-Espinosa,
  • Estrella Espada-Bellido,
  • Marta Ferreiro-González,
  • Ceferino Carrera,
  • Miguel Palma and
  • Gerardo F. Barbero

The population is now more aware of their diets due to the connection between food and general health. Onions (Allium cepa L.), common vegetables that are minimally processed and grown locally, are known for their health-promoting properties. The org...

  • Review
  • Open Access
188 Citations
15,479 Views
13 Pages

17 October 2020

Mass spectrometry (MS), a core technology for proteomics and metabolomics, is currently being developed for clinical applications. The identification of microorganisms in clinical samples using matrix-assisted laser desorption/ionization–time-o...

  • Article
  • Open Access
10 Citations
2,449 Views
12 Pages

21 February 2024

With its high resolving power and sensitivity, mass spectrometry is considered the most informative technique for metabolite qualitation and quantification in the plant sciences. However, the spatial location information, which is crucial for the exp...

  • Article
  • Open Access
6 Citations
2,934 Views
15 Pages

23 July 2021

Matrix-assisted laser desorption ionization/time-of-flight (MALDI-TOF) mass spectrometry is a sensitive analytical tool for characterizing various biomolecules in biofluids. In this study, MALDI-TOF was used to characterize potential plasma biomarker...

  • Review
  • Open Access
26 Citations
4,775 Views
19 Pages

22 January 2021

Matrix-assisted laser desorption/ionization (MALDI) has been considered as one of the most powerful analytical tools for mass spectrometry (MS) analysis of large molecular weight compounds such as proteins, nucleic acids, and synthetic polymers thank...

  • Article
  • Open Access
11 Citations
3,702 Views
11 Pages

Effects of Carbon Nanowalls (CNWs) Substrates on Soft Ionization of Low-Molecular-Weight Organic Compounds in Surface-Assisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS)

  • Ryusei Sakai,
  • Tomonori Ichikawa,
  • Hiroki Kondo,
  • Kenji Ishikawa,
  • Naohiro Shimizu,
  • Takayuki Ohta,
  • Mineo Hiramatsu and
  • Masaru Hori

20 January 2021

Carbon nanowalls (CNWs), which are vertically oriented multi-layer graphene sheets, were employed in surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) measurements to detect low-molecular-weight organic compounds. CNWs substra...

  • Review
  • Open Access
90 Citations
12,009 Views
16 Pages

Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) Analysis for the Identification of Pathogenic Microorganisms: A Review

  • Xin-Fei Chen,
  • Xin Hou,
  • Meng Xiao,
  • Li Zhang,
  • Jing-Wei Cheng,
  • Meng-Lan Zhou,
  • Jing-Jing Huang,
  • Jing-Jia Zhang,
  • Ying-Chun Xu and
  • Po-Ren Hsueh

Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) has been used in the field of clinical microbiology since 2010. Compared with the traditional technique of biochemical identification, MALDI-TOF MS has many a...

  • Article
  • Open Access
1 Citations
2,062 Views
11 Pages

A rapid and sensitive protein determination method that uses electromembrane extraction (EME) and is coupled with matrix-assisted laser desorption/ionization mass spectrometry (MALDI/MS) is developed. A flat nylon membrane is used to collect proteins...

  • Article
  • Open Access
1 Citations
2,690 Views
15 Pages

30 December 2024

Escherichia coli and Shigella flexneri are challenging to differentiate using methods such as phenotyping, 16S rRNA sequencing, or protein profiling through matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) due to their close r...

  • Article
  • Open Access
5 Citations
4,404 Views
19 Pages

5 September 2022

Microbial volatile organic compounds (mVOCs) are metabolites developed by indoor molds responsible for several health effects. Their detection may be an alternative approach for fungal exposure assessment, given that the classical methods have limita...

  • Article
  • Open Access
6 Citations
2,548 Views
14 Pages

Effects of High-Quality Carbon Nanowalls Ionization-Assisting Substrates on Surface-Assisted Laser Desorption/Ionization Mass Spectrometry Performance

  • Ryusei Sakai,
  • Hiroki Kondo,
  • Kenji Ishikawa,
  • Takayuki Ohta,
  • Mineo Hiramatsu,
  • Hiromasa Tanaka and
  • Masaru Hori

23 December 2022

Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) is performed using carbon nanowalls (CNWs) for ionization-assisting substrates. The CNWs (referred to as high-quality CNWs) in the present study were grown using a radical-inje...

  • Communication
  • Open Access
12 Citations
4,161 Views
9 Pages

Identification and Subtyping of Salmonella Isolates Using Matrix-Assisted Laser Desorption–Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF)

  • Anil K. Persad,
  • Hanan A. Fahmy,
  • Nicholas Anderson,
  • Jing Cui,
  • Zeynal Topalcengiz,
  • Saharuetai Jeamsripong,
  • Patrick M. Spanninger,
  • Robert L. Buchanan,
  • Kalmia E. Kniel and
  • Jeffrey T. LeJeune
  • + 3 authors

Subtyping of bacterial isolates of the same genus and species is an important tool in epidemiological investigations. A number of phenotypic and genotypic subtyping methods are available; however, most of these methods are labor-intensive and time-co...

  • Article
  • Open Access
1 Citations
875 Views
11 Pages

Background: Understanding the absorption and distribution of herbicides in plants and animal tissues is essential for assessing their potential risks to human health. Method: In this study, we employed imprint desorption electrospray ionization mass...

  • Protocol
  • Open Access
4 Citations
4,278 Views
17 Pages

High-Throughput Fingerprinting of Rhizobial Free Fatty Acids by Chemical Thin-Film Deposition and Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry

  • Aleksey Gladchuk,
  • Julia Shumilina,
  • Alena Kusnetsova,
  • Ksenia Bureiko,
  • Susan Billig,
  • Alexander Tsarev,
  • Irina Alexandrova,
  • Larisa Leonova,
  • Vladimir A. Zhukov and
  • Andrej Frolov
  • + 3 authors

Fatty acids (FAs) represent an important class of metabolites, impacting on membrane building blocks and signaling compounds in cellular regulatory networks. In nature, prokaryotes are characterized with the most impressing FA structural diversity an...

  • Article
  • Open Access
9 Citations
7,780 Views
15 Pages

13 May 2014

A factor for estimating the flexibility of proteins is described that uses a cleavage method of “in-source decay (ISD)” coupled with matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS). The MALDI-ISD spectra of bovine serum album...

  • Article
  • Open Access
55 Citations
8,165 Views
14 Pages

26 December 2019

Flavan-3-ols, which comprise proanthocyanidins and their monomers, are major flavonoids in strawberries, and they have a wide range of biological activities and health benefits. However, their spatial distribution in strawberry fruit remains poorly u...

  • Article
  • Open Access
18 Citations
4,869 Views
11 Pages

Identification of Adult Fasciola spp. Using Matrix-Assisted Laser/Desorption Ionization Time-of-Flight (MALDI-TOF) Mass Spectrometry

  • Issa Sy,
  • Lena Margardt,
  • Emmanuel O. Ngbede,
  • Mohammed I. Adah,
  • Saheed T. Yusuf,
  • Jennifer Keiser,
  • Jacqueline Rehner,
  • Jürg Utzinger,
  • Sven Poppert and
  • Sören L. Becker

Fascioliasis is a neglected trematode infection caused by Fasciola gigantica and Fasciola hepatica. Routine diagnosis of fascioliasis relies on macroscopic identification of adult worms in liver tissue of slaughtered animals, and microscopic detectio...

  • Article
  • Open Access
26 Citations
4,590 Views
14 Pages

16 February 2020

Phosphatidylcholine (PC) is the major phospholipid in meat and influences meat qualities, such as healthiness. PC is classified into three groups based on the bond at the sn-1 position: Diacyl, alkylacyl, and alkenylacyl. To investigate their composi...

  • Article
  • Open Access
12 Citations
7,249 Views
15 Pages

8 November 2012

Hereditary leiomyomatosis and renal cell cancer (HLRCC) is an extremely rare syndrome with autosomal dominant inheritance. HLRCC is characterized by a predisposition to leiomyomas of the skin and the uterus as well as renal cell carcinoma. The diseas...

  • Article
  • Open Access
85 Citations
6,650 Views
16 Pages

16 January 2020

Chinese jasmine tea is a type of flower-scented tea, which is produced by mixing green tea with the Jasminum sambac flower repeatedly. Both the total amount and composition of volatiles absorbed from the Jasminum sambac flower are mostly responsible...

  • Article
  • Open Access
3 Citations
2,879 Views
15 Pages

2 June 2022

The reversible and substoichiometric modification of RNA has recently emerged as an additional layer of translational regulation in normal biological function and disease. Modifications are often enzymatically deposited in and removed from short (~5...

  • Article
  • Open Access
38 Citations
6,594 Views
17 Pages

29 September 2019

Radix Aconiti Lateralis Preparata (fuzi) is the processed product of Aconitum carmichaelii Debeaux tuber, and has great potential anti-myocardial infarction effects, including improving myocardial damage and energy metabolism in rats. However, the ef...

  • Article
  • Open Access
1,099 Views
16 Pages

8 September 2025

This study established a novel detection method for volatile organic compounds in forest therapy tree species based on direct thermal desorption technology. The optimized parameters included 20 mg sample loading, 110 °C desorption temperature, 30...

  • Article
  • Open Access
22 Citations
4,762 Views
11 Pages

Identification of Mucorales by Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry

  • Patrick Schwarz,
  • Houssem Guedouar,
  • Farah Laouiti,
  • Frédéric Grenouillet and
  • Eric Dannaoui

2 July 2019

More than 20 different species of Mucorales can be responsible for human mucormycosis. Accurate identification to the species level is important. The morphological identification of Mucorales is not reliable, and the currently recommended identificat...

  • Review
  • Open Access
31 Citations
5,743 Views
19 Pages

Common Strategies and Factors Affecting Off-Line Breath Sampling and Volatile Organic Compounds Analysis Using Thermal Desorption-Gas Chromatography-Mass Spectrometry (TD-GC-MS)

  • Kinga Westphal,
  • Danuta Dudzik,
  • Małgorzata Waszczuk-Jankowska,
  • Beata Graff,
  • Krzysztof Narkiewicz and
  • Michał Jan Markuszewski

21 December 2022

An analysis of exhaled breath enables specialists to noninvasively monitor biochemical processes and to determine any pathological state in the human body. Breath analysis holds the greatest potential to remold and personalize diagnostics; however, i...

  • Article
  • Open Access
4 Citations
1,761 Views
13 Pages

Laser Desorption-Ion Mobility Spectrometry of Explosives for Forensic and Security Applications

  • Giorgio Felizzato,
  • Martin Sabo,
  • Matej Petrìk and
  • Francesco Saverio Romolo

1 January 2025

Background: The detection of explosives in crime scene investigations is critical for forensic science. This study explores the application of laser desorption (LD) ion mobility spectrometry (IMS) as a novel method for this purpose utilising a new IM...

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