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Kołodziej A, Płaza-Altamer A. Advances in the synthesis and application of silver nanoparticles for laser mass spectrometry: A mini-review. Talanta 2024; 277:126347. [PMID: 38838565 DOI: 10.1016/j.talanta.2024.126347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/07/2024]
Abstract
Silver nanoparticles are used in laser mass spectrometry to replace organic matrices. Thanks to their unique properties, they enable effective desorption/ionization of samples of various polarities and ionization abilities. This review presents new methods for the synthesis of monoisotopic silver nanoparticles and the use of targets coated with these nanoparticles for qualitative and quantitative analyses of various small-molecule compounds. Additionally, the results of progress in the application of AgNPs for metabolomics analyses were presented.
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Affiliation(s)
- Artur Kołodziej
- Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959, Rzeszów, Poland.
| | - Aneta Płaza-Altamer
- Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959, Rzeszów, Poland
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2
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Sakai R, Kondo H, Ishikawa K, Ohta T, Hiramatsu M, Tanaka H, Hori M. Effects of High-Quality Carbon Nanowalls Ionization-Assisting Substrates on Surface-Assisted Laser Desorption/Ionization Mass Spectrometry Performance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:63. [PMID: 36615973 PMCID: PMC9823508 DOI: 10.3390/nano13010063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
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-injection plasma-enhanced chemical vapor deposition (RI-PECVD) system with the addition of oxygen in a mixture of CH4 and H2 gases. High-quality CNWs were different with respect to crystallinity and C-OH groups, while showing similar wall-to-wall distances and a wettability comparable to CNWs (referred to as normal CNWs) grown without O2. The efficiency of SALDI was tested with both parameters of ion intensity and fragmental efficiency (survival yield (SY)) using N-benzylpyridinuim chloride (N-BP-CI). At a laser fluence of 4 mJ/cm2, normal CNWs had an SY of 0.97 and an ion intensity of 0.13, while 5-sccm-O2- high-quality CNWs had an SY of 0.89 and an ion intensity of 2.55. As a result, the sensitivity for the detection of low-molecular-weight analytes was improved with the high-quality CNWs compared to the normal CNWs, while an SY of 0.89 was maintained at a low laser fluence of 4 mJ/cm2. SALDI-MS measurements available with the high-quality CNWs ionization-assisting substrate provided high ionization and SY values.
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Affiliation(s)
- Ryusei Sakai
- Department of Electronics, Graduate School of Engineering, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan
| | - Hiroki Kondo
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan
| | - Kenji Ishikawa
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan
| | - Takayuki Ohta
- Department of Electrical and Electronic Engineering, Meijo University, 1-501 Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
| | - Mineo Hiramatsu
- Department of Electrical and Electronic Engineering, Meijo University, 1-501 Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
| | - Hiromasa Tanaka
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan
| | - Masaru Hori
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan
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3
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Laser-induced electron transfer desorption/ionization on MoO 3 and WO 3 surfaces for the determination of dithiocarbamates. Anal Bioanal Chem 2022; 414:6929-6937. [PMID: 35930007 DOI: 10.1007/s00216-022-04258-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/08/2022] [Accepted: 07/28/2022] [Indexed: 11/01/2022]
Abstract
Surface layers of molybdenum oxide MoO3 and tungsten oxide WO3 produced by thermal oxidation of molybdenum and tungsten plates in the air were studied for the first time as a platform for laser-induced electron transfer desorption/ionization. High analytical performance of such layers for the determination of metal complexes with dithiocarbamates, such as tetramethylthiuram disulfide, tetraethylthiuram disulfide, and diethyldithiocarbamate, has been demonstrated. All studied complexes are detected as radical cations, with no fragment ions. The ion yields from MoO3 and WO3 surfaces were found to be more than two orders of magnitude higher than those from nanocrystalline silicon surfaces. A novel method has been developed for the determination of trace amounts of dithiocarbamates based on the complexation of analytes with gold ions, followed by laser-induced electron transfer desorption/ionization. The limits of detection of dithiocarbamates were estimated to be about 1 ng/mL. The proposed method was successfully applied to the rapid screening of tetramethylthiuram disulfide residues in juice.
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4
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Laser Desorption/Ionization Mass Spectrometry as a Potential Tool for Evaluation of Hydroxylation Degree of Various Types of Titanium Dioxide Materials. MATERIALS 2021; 14:ma14226848. [PMID: 34832250 PMCID: PMC8619251 DOI: 10.3390/ma14226848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/25/2021] [Accepted: 11/09/2021] [Indexed: 11/23/2022]
Abstract
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-modified TiO2 samples were analyzed by laser desorption/ionization mass spectrometry. In the negative ion mode, two types of ions were detected, namely (TiO2)n− and (TiO2)nOH−. It has been established that the samples can be differentiated based on the relative ion abundances, especially with respect to the free hydroxyl group population. It indicates that laser desorption ionization mass spectrometry has the potential for the investigation of the surface properties of various TiO2 materials.
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Matrix-Free High-Resolution Atmospheric-Pressure SALDI Mass Spectrometry Imaging of Biological Samples Using Nanostructured DIUTHAME Membranes. Metabolites 2021; 11:metabo11090624. [PMID: 34564440 PMCID: PMC8468348 DOI: 10.3390/metabo11090624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/26/2021] [Accepted: 09/01/2021] [Indexed: 01/06/2023] Open
Abstract
Applications of mass spectrometry imaging (MSI), especially matrix-assisted laser desorption/ionization (MALDI) in the life sciences are becoming increasingly focused on single cell analysis. With the latest instrumental developments, pixel sizes in the micrometer range can be obtained, leading to challenges in matrix application, where imperfections or inhomogeneities in the matrix layer can lead to misinterpretation of MS images. Thereby, the application of premanufactured, homogeneous ionization-assisting devices is a promising approach. Tissue sections were investigated using a matrix-free imaging technique (Desorption Ionization Using Through-Hole Alumina Membrane, DIUTHAME) based on premanufactured nanostructured membranes to be deposited on top of a tissue section, in comparison to the spray-coating of an organic matrix in a MALDI MSI approach. Atmospheric pressure MALDI MSI ion sources were coupled to orbital trapping mass spectrometers. MS signals obtained by the different ionization techniques were annotated using accurate-mass-based database research. Compared to MALDI MSI, DIUTHAME MS images captivated with higher signal homogeneities, higher contrast and reduced background signals, while signal intensities were reduced by about one order of magnitude, independent of analyte class. DIUTHAME membranes, being applicable only on tissue sections thicker than 50 µm, were successfully used for mammal, insect and plant tissue with a high lateral resolution down to 5 µm.
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Unnikrishnan B, Gultom IS, Tseng YT, Chang HT, Huang CC. Controlling morphology evolution of titanium oxide-gold nanourchin for photocatalytic degradation of dyes and photoinactivation of bacteria in the infected wound. J Colloid Interface Sci 2021; 598:260-273. [PMID: 33901851 DOI: 10.1016/j.jcis.2021.04.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 10/21/2022]
Abstract
We report a one-pot, room-temperature, morphology-controlled synthesis of titanium oxide (TiOx)-gold nanocomposites (TiOx-Au NCs) using HAuCl4 and TiCl3 as precursors, and catechin as reducing agent. TiOx-Au NCs have a range of morphologies from star-like to urchin-like shape depending on the concentration of TiCl3 in the reaction mixture. The urchin-shaped TiOx-Au NCs exhibited excellent photocatalytic activity toward dye degradation due to strong light absorption, plasmon-induced excitation, high conductivity of the gold, and reduced hole-electron pair recombination. TiOx-Au NCs have the advantage of a wide range of light absorption and surface plasmon absorption-mediated excitation due to their abundant gold spikes, which enabled the degradation of dyes over 97% in 60 min, using a xenon lamp as a light source. In addition, TiOx-Au NCs are highly efficient for the photoinactivation of Escherichia coli and methicillin-resistant Staphylococcus aureus (MRSA), and Candida albicans through the photodynamic generation of reactive oxygen species (ROS) and damage to the bacterial membrane. The catechin derivatives on the NCs effectively promoted curing MRSA infected wounds in rats through inducing collagen synthesis, migration of keratinocytes, and neovascularization.
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Affiliation(s)
- Binesh Unnikrishnan
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Irma Suryani Gultom
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Yu-Ting Tseng
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan.
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
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7
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Weber V, Kamika I, Momba MNB. Comparing the effect of zinc oxide and titanium dioxide nanoparticles on the ability of moderately halophilic bacteria to treat wastewater. Sci Rep 2021; 11:16969. [PMID: 34417503 PMCID: PMC8379202 DOI: 10.1038/s41598-021-96413-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/23/2021] [Indexed: 11/11/2022] Open
Abstract
This study evaluates the ability of moderately halophilic bacterial isolates (Serratia sp., Bacillus sp., Morganella sp., Citrobacter freundii and Lysinibacillus sp.) to treat polluted wastewater in the presence of nZnO and nTiO2 nanoparticles. In this study, bacteria isolates were able to take up nZnO and nTiO2 at concentrations ranging from 1 to 50 mg/L in the presence of higher DO uptake at up to 100% and 99%, respectively, while higher concentrations triggered a significant decrease. Individual halophilic bacteria exhibited a low COD removal efficiency in the presence of both metal oxide nanoparticles concentration ranged between 1 and 10 mg/L. At higher concentrations, they triggered COD release of up to − 60% concentration. Lastly, the test isolates also demonstrated significant nutrient removal efficiency in the following ranges: 23–65% for NO3− and 28–78% for PO43−. This study suggests that moderately halophilic bacteria are good candidates for the bioremediation of highly polluted wastewater containing low metal oxide nanoparticles.
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Affiliation(s)
- Vanessa Weber
- Department of Environmental, Water and Earth Sciences, Tshwane University of Technology, Arcadia Campus, Private Bag X680, Pretoria, 0001, South Africa
| | - Ilunga Kamika
- Institute for Nanotechnology and Water Sustainability, School of Science, College of Science, Engineering and Technology, University of South Africa, Florida Campus, Johannesburg, South Africa.
| | - Maggy N B Momba
- Department of Environmental, Water and Earth Sciences, Tshwane University of Technology, Arcadia Campus, Private Bag X680, Pretoria, 0001, South Africa.
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Yukird J, Kaminsky CJ, Chailapakul O, Rodthongkum N, Vachet RW. Enhanced and Selective MALDI-MS Detection of Peptides via the Nanomaterial-Dependent Coffee Ring Effect. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:1780-1788. [PMID: 34048651 DOI: 10.1021/jasms.1c00132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanomaterials have been explored as alternative matrices in MALDI-MS to overcome some of the limitations of conventional matrices. Recently, we demonstrated a new means by which nanomaterials can improve peptide ionization and detection in MALDI-MS analyses by exploiting the tendency of nanomaterials to form "coffee rings" upon drying from liquids. In the current work, we investigate how nanomaterial size and composition affect the signal enhancement of peptides through the coffee-ring effect. From studies of eight different types of nanomaterials ranging in size and composition, we find that most nanomaterials can provide signal enhancement ranging from 2- to 10-fold for individual peptides, as long as a coffee ring is formed. However, when a mixture of peptides is present in a sample, the signal enhancement is the greatest for peptides whose net charge is complementary to the nanomaterial's surface charge. These results suggest that careful design of NM surface properties could allow for selective, enhanced MALDI-MS detection of specific peptides in complex mixtures.
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Affiliation(s)
- Jutiporn Yukird
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Cameron J Kaminsky
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Nadnudda Rodthongkum
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand
- Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Bangkok 10330, Thailand
| | - Richard W Vachet
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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Sakai R, Ichikawa T, Kondo H, Ishikawa K, Shimizu N, Ohta T, Hiramatsu M, Hori M. Effects of Carbon Nanowalls (CNWs) Substrates on Soft Ionization of Low-Molecular-Weight Organic Compoundsin Surface-Assisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS). NANOMATERIALS 2021; 11:nano11020262. [PMID: 33498479 PMCID: PMC7909522 DOI: 10.3390/nano11020262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 01/15/2023]
Abstract
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 substrates with widely different wall-to-wall distances from 142 to 467 nm were synthesized using a radical-injection plasma-enhanced chemical vapor deposition (RI-PECVD) system with nanosecond pulse biasing to a sample stage. When survival yield (SY) values of N-benzylpyridinium chloride (N-BP-Cl) were examined, which is commonly used to evaluate desorption/ionization efficiency, a narrower wall-to-wall distance presented a higher SY value. The highest SY value of 0.97 was realized at 4 mJ/cm2 for the highest-density CNWs with a wall-to-wall distance of 142 nm. The laser desorption/ionization effect of arginine, an amino acid, was also investigated. When CNWs with a narrower wall-to-wall distance were used, the signal-to-noise (SN) ratios of the arginine signals were increased, while the intensity ratios of fragment ions to arginine signals were suppressed. Therefore, the CNWs nanostructures are a powerful tool when used as a SALDI substrate for the highly efficient desorption/ionization of low-molecular-weight biomolecules.
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Affiliation(s)
- Ryusei Sakai
- Department of Electronics, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan;
| | - Tomonori Ichikawa
- Japan Aerospace Exploration Agency, 7-44-1, Jindaiji, Higashi-machi, Chofu-shi, Tokyo 182-8522, Japan;
| | - Hiroki Kondo
- Center for Low-temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan; (K.I.); (N.S.); (M.H.)
- Correspondence: ; Tel.: +81-52-789-3461
| | - Kenji Ishikawa
- Center for Low-temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan; (K.I.); (N.S.); (M.H.)
| | - Naohiro Shimizu
- Center for Low-temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan; (K.I.); (N.S.); (M.H.)
| | - Takayuki Ohta
- Departmet of Electrical and Electronic Engineering, Meijo University, Shiogamaguchi, Tenpaku, Nagoya 468-8502, Japan; (T.O.); (M.H.)
| | - Mineo Hiramatsu
- Departmet of Electrical and Electronic Engineering, Meijo University, Shiogamaguchi, Tenpaku, Nagoya 468-8502, Japan; (T.O.); (M.H.)
| | - Masaru Hori
- Center for Low-temperature Plasma Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8603, Japan; (K.I.); (N.S.); (M.H.)
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Ohara K, Hayashi Y, Yamaguchi K. Laser Desorption Ionization-Mass Spectrometry of Linear Diphenylenes Encapsulated in Crystalline Sponge. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kazuaki Ohara
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Yukako Hayashi
- 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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Liu Z, Zhang P, Kister T, Kraus T, Volmer DA. Ultrathin Homogenous AuNP Monolayers as Tunable Functional Substrates for Surface-Assisted Laser Desorption/Ionization of Small Biomolecules. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:47-57. [PMID: 32881515 DOI: 10.1021/jasms.9b00038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A series of ultrathin, homogenous gold nanoparticle (AuNP) substrates for surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) were prepared using a simple air/water interface approach. These SALDI substrates enabled soft ionization and provided significant improvements in terms of signal intensities and reduced background levels in comparison to other AuNP morphologies for different analytes such as fatty acids, peptides, amino acids, saccharides, and drugs. Through different microscopic and spectroscopic methods, we determined that the packing homogeneity of the [AuNP]n substrates played a vital role in the efficiency of the SALDI process. We demonstrated that the signal intensities of the investigated analytes were readily optimized by manipulating the thickness of the [AuNP]n substrates. The desorption/ionization efficiency increased as a function of the number of layers and then reached a saturation point. The optimized [AuNP]n substrates not only exhibited high SALDI-MS desorption/ionization efficiencies but also showed excellent reproducibilities of the analyte signals.
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Affiliation(s)
- Zhen Liu
- Institute of Bioanalytical Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Peng Zhang
- School of Materials Science and Engineering, Sun Yat-sen University, Guanghzou 510275, China
| | - Thomas Kister
- INM-Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
| | - Tobias Kraus
- INM-Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
- Institute of Colloid and Interface Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Dietrich A Volmer
- Department of Chemistry, Humboldt University of Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
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Yukird J, Soum V, Kwon OS, Shin K, Chailapakul O, Rodthongkum N. 3D paper-based microfluidic device: a novel dual-detection platform of bisphenol A. Analyst 2020; 145:1491-1498. [DOI: 10.1039/c9an01738k] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel platform of 3D paper-based microfluidic device (μPADs) was fabricated by a digital plotter for high precision analysis of bisphenol A using electrochemistry along with LDI-MS detection.
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Affiliation(s)
- Jutiporn Yukird
- Nanoscience and technology program
- Graduate School
- Chulalongkorn University
- Patumwan
- Thailand
| | - Veasna Soum
- Department of Chemistry and Institute of Biological Interfaces
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Oh-Sun Kwon
- Department of Chemistry and Institute of Biological Interfaces
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Research Unit
- Department of Chemistry
- Faculty of Science
- Chulalongkorn University
- Patumwan
| | - Nadnudda Rodthongkum
- Metallurgy and Materials Science Research Institute
- Chulalongkorn University
- Patumwan
- Thailand
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13
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Self-assembly TiO2 nanosheets as a SALDI-TOF-MS matrix for high-throughput identification of polyfluorinated compounds in water samples. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104294] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Kim MJ, Park JM, Yun TG, Noh JY, Kang MJ, Pyun JC. A TiO2 nanowire photocatalyst for dual-ion production in laser desorption/ionization (LDI) mass spectrometry. Chem Commun (Camb) 2020; 56:4420-4423. [DOI: 10.1039/d0cc00866d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It has been challenging to detect small analytes in both positive and negative ion modes in MALDI-MS. Herein, TiO2 nanowires are presented as a solid matrix to produce dual-ion of any analytes and to demonstrate the versatile applicability in LDI-MS.
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Affiliation(s)
- Moon-Ju Kim
- Department of Materials Science and Engineering
- Yonsei University
- Seoul
- Republic of Korea
| | - Jong-Min Park
- Department of Materials Science and Engineering
- Yonsei University
- Seoul
- Republic of Korea
| | - Tae Gyeong Yun
- Department of Materials Science and Engineering
- Yonsei University
- Seoul
- Republic of Korea
| | - Joo-Yoon Noh
- Department of Materials Science and Engineering
- Yonsei University
- Seoul
- Republic of Korea
| | - Min-Jung Kang
- Korea Institute of Science and Technology (KIST)
- Seoul
- Republic of Korea
| | - Jae-Chul Pyun
- Department of Materials Science and Engineering
- Yonsei University
- Seoul
- Republic of Korea
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15
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Nanoparticle-based surface assisted laser desorption ionization mass spectrometry: a review. Mikrochim Acta 2019; 186:682. [DOI: 10.1007/s00604-019-3770-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 08/16/2019] [Indexed: 12/28/2022]
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16
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Gao C, Zhen D, He N, An Z, Zhou Q, Li C, Grimes CA, Cai Q. Two-dimensional TiO 2 nanoflakes enable rapid SALDI-TOF-MS detection of toxic small molecules (dyes and their metabolites) in complex environments. Talanta 2018; 196:1-8. [PMID: 30683337 DOI: 10.1016/j.talanta.2018.11.104] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/26/2018] [Accepted: 11/29/2018] [Indexed: 12/25/2022]
Abstract
High surface area (136 m2 g-1) nanoporous two-dimensional TiO2 nanoflakes are applied as an adsorbent and meanwhile a matrix for toxic small molecule analysis using positive-ion surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF MS). The TiO2 nanoflakes enable one-step enrichment and analysis, greatly simplifying the analysis technique. Due to the high enrichment efficiency and low background noise, small molecule organic contaminants at ppt or even sub-ppt concentrations such as malachite green (10 pg/mL), leucomalachite green (10 pg/mL), cetyltrimethylammonium bromide (0.001 pg/mL), rhodamine B (0.001 pg/mL), and crystal violet (0.1 pg/mL) were detected. In addition, malachite green and its metabolite leucomalachite green at ng/mL concentrations were successfully detected from fish blood and fish extracts, and crystal violet and its homologues at ng/cm2 concentrations were detected from inks on thermal receipt papers obtained from local supermarket.
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Affiliation(s)
- Chan Gao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Deshuai Zhen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China; College of Chemistry and Chemical Engineering, Qiannan Normal University for Nationalities, Duyun, Guizhou 558000, China
| | - Ni He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Zhengbin An
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Qiulan Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Chenyi Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Craig A Grimes
- Flux Photon Corporation,5950 Shiloh Road East, Alpharetta, GA 30005 United States
| | - Qingyun Cai
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
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17
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Palermo A, Forsberg EM, Warth B, Aisporna AE, Billings E, Kuang E, Benton HP, Berry D, Siuzdak G. Fluorinated Gold Nanoparticles for Nanostructure Imaging Mass Spectrometry. ACS NANO 2018; 12:6938-6948. [PMID: 29966083 DOI: 10.1021/acsnano.8b02376] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nanostructure imaging mass spectrometry (NIMS) with fluorinated gold nanoparticles (f-AuNPs) is a nanoparticle assisted laser desorption/ionization approach that requires low laser energy and has demonstrated high sensitivity. Here we describe NIMS with f-AuNPs for the comprehensive analysis of metabolites in biological tissues. F-AuNPs assist in desorption/ionization by laser-induced release of the fluorocarbon chains with minimal background noise. Since the energy barrier required to release the fluorocarbons from the AuNPs is minimal, the energy of the laser is maintained in the low μJ/pulse range, thus limiting metabolite in-source fragmentation. Electron microscopy analysis of tissue samples after f-AuNP NIMS shows a distinct "raising" of the surface as compared to matrix assisted laser desorption ionization ablation, indicative of a gentle desorption mechanism aiding in the generation of intact molecular ions. Moreover, the use of perfluorohexane to distribute the f-AuNPs on the tissue creates a hydrophobic environment minimizing metabolite solubilization and spatial dislocation. The transfer of the energy from the incident laser to the analytes through the release of the fluorocarbon chains similarly enhances the desorption/ionization of metabolites of different chemical nature, resulting in heterogeneous metabolome coverage. We performed the approach in a comparative study of the colon of mice exposed to three different diets. F-AuNP NIMS allows the direct detection of carbohydrates, lipids, bile acids, sulfur metabolites, amino acids, nucleotide precursors as well as other small molecules of varied biological origins. Ultimately, the diversified molecular coverage obtained provides a broad picture of a tissue's metabolic organization.
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Affiliation(s)
- Amelia Palermo
- Scripps Center for Metabolomics , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Erica M Forsberg
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182 , United States
| | - Benedikt Warth
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Vienna Metabolomics Center (VIME) , University of Vienna , Währingerstraße 38 , 1090 Vienna , Austria
| | - Aries E Aisporna
- Scripps Center for Metabolomics , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Elizabeth Billings
- Scripps Center for Metabolomics , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Ellen Kuang
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182 , United States
| | - H Paul Benton
- Scripps Center for Metabolomics , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - David Berry
- Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, Research Network Chemistry Meets Microbiology , University of Vienna , Althanstraße 14 , 1090 Vienna , Austria
| | - Gary Siuzdak
- Scripps Center for Metabolomics , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
- Department of Chemistry, Molecular and Computational Biology , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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18
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Nanoparticle assisted laser desorption/ionization mass spectrometry for small molecule analytes. Mikrochim Acta 2018; 185:200. [DOI: 10.1007/s00604-018-2687-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/18/2018] [Indexed: 12/14/2022]
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19
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Hayashi Y, Ohara K, Taki R, Saeki T, Yamaguchi K. Combined analysis of 1,3-benzodioxoles by crystalline sponge X-ray crystallography and laser desorption ionization mass spectrometry. Analyst 2018; 143:1475-1481. [DOI: 10.1039/c7an01906h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The combination of X-ray analysis and laser desorption ionization by using crystalline sponge will be a promising method to determine guest structures.
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Affiliation(s)
- Yukako Hayashi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Kazuaki Ohara
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Rika Taki
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Tomomi Saeki
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
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20
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Ho YN, Shu LJ, Yang YL. Imaging mass spectrometry for metabolites: technical progress, multimodal imaging, and biological interactions. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2017; 9. [PMID: 28488813 DOI: 10.1002/wsbm.1387] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/24/2017] [Accepted: 02/28/2017] [Indexed: 12/19/2022]
Abstract
Imaging mass spectrometry (IMS) allows the study of the spatial distribution of small molecules in biological samples. IMS is able to identify and quantify chemicals in situ from whole tissue sections to single cells. Both vacuum mass spectrometry (MS) and ambient MS systems have advanced considerably over the last decade; however, some limitations are still hard to surmount. Sample pretreatment, matrix or solvent choices, and instrument improvement are the key factors that determine the successful application of IMS to different samples and analytes. IMS with innovative MS analyzers, powerful MS spectrum databases, and analysis tools can efficiently dereplicate, identify, and quantify natural products. Moreover, multimodal imaging systems and multiple MS-based systems provide additional structural, chemical, and morphological information and are applied as complementary tools to explore new fields. IMS has been applied to reveal interactions between living organisms at molecular level. Recently, IMS has helped solve many previously unidentifiable relations between bacteria, fungi, plants, animals, and insects. Other significant interactions on the chemical level can also be resolved using expanding IMS techniques. WIREs Syst Biol Med 2017, 9:e1387. doi: 10.1002/wsbm.1387 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Ying-Ning Ho
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Lin-Jie Shu
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
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21
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Wu Q, Chu JL, Rubakhin SS, Gillette MU, Sweedler JV. Dopamine-modified TiO 2 monolith-assisted LDI MS imaging for simultaneous localization of small metabolites and lipids in mouse brain tissue with enhanced detection selectivity and sensitivity. Chem Sci 2017; 8:3926-3938. [PMID: 28553535 PMCID: PMC5433501 DOI: 10.1039/c7sc00937b] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 03/14/2017] [Indexed: 12/03/2022] Open
Abstract
Localization of metabolites using multiplexed mass spectrometry imaging (MSI) provides important chemical information for biological research. In contrast to matrix-assisted laser desorption/ionization (MALDI), TiO2-assisted laser desorption/ionization (LDI) for MSI improves detection of low molecular mass metabolites (<500 Da) by reducing matrix background. However, the low UV absorption of TiO2 nanoparticles and their ester hydrolysis catalytic activity hinder the detection of phospholipids and many low-abundance molecules. To address these challenges, we evaluated and optimized the material morphology and composition of TiO2. Dopamine (DA) was found to be an efficient ligand for TiO2, resulting in increased UV light absorption, higher surface pH, and formation of monolithic TiO2-DA structures. The sub-micron scale and higher surface pH of the TiO2 particle sizes led to improved detection of phospholipid signals. Compared to unmodified TiO2 sub-micron particles, the DA-modified TiO2 monolith led to 10- to 30-fold increases in the signal-to-noise ratios of a number of compound peaks. The TiO2-DA monolith-assisted LDI MSI approach has higher selectivity and sensitivity for Lewis basic compounds, such as fatty acids, cholesterols, ceramides, diacylglycerols, and phosphatidylethanolamine, when analyzed in positive mode, than traditional MALDI MS. Using this new method, over 100 molecules, including amino acids, alkaloids, free fatty acids, peptides, and lipids, were localized in mouse brain sections. By comparing the presence and localization of those molecules in young and old mouse brains, the approach demonstrated good performance in the determination of aging-related neurochemical changes in the brain.
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Affiliation(s)
- Qian Wu
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 S. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA .
- Beckman Institute , University of Illinois at Urbana-Champaign , 405 N. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA
| | - James L Chu
- Department of Cell and Developmental Biology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , USA
| | - Stanislav S Rubakhin
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 S. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA .
- Beckman Institute , University of Illinois at Urbana-Champaign , 405 N. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA
| | - Martha U Gillette
- Department of Cell and Developmental Biology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , USA
- Beckman Institute , University of Illinois at Urbana-Champaign , 405 N. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA
| | - Jonathan V Sweedler
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 S. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA .
- Beckman Institute , University of Illinois at Urbana-Champaign , 405 N. Mathews Ave, 63-5 , Urbana , Illinois 61801 , USA
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22
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Mechanisms of Nanophase-Induced Desorption in LDI-MS. A Short Review. NANOMATERIALS 2017; 7:nano7040075. [PMID: 28368330 PMCID: PMC5408167 DOI: 10.3390/nano7040075] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/24/2017] [Accepted: 03/28/2017] [Indexed: 12/26/2022]
Abstract
Nanomaterials are frequently used in laser desorption ionization mass spectrometry (LDI-MS) as DI enhancers, providing excellent figures of merit for the analysis of low molecular weight organic molecules. In recent years, literature on this topic has benefited from several studies assessing the fundamental aspects of the ion desorption efficiency and the internal energy transfer, in the case of model analytes. Several different parameters have been investigated, including the intrinsic chemical and physical properties of the nanophase (chemical composition, thermal conductivity, photo-absorption efficiency, specific heat capacity, phase transition point, explosion threshold, etc.), along with morphological parameters such as the nanophase size, shape, and interparticle distance. Other aspects, such as the composition, roughness and defects of the substrate supporting the LDI-active nanophases, the nanophase binding affinity towards the target analyte, the role of water molecules, have been taken into account as well. Readers interested in nanoparticle based LDI-MS sub-techniques (SALDI-, SELDI-, NALDI- MS) will find here a concise overview of the recent findings in the specialized field of fundamental and mechanistic studies, shading light on the desorption ionization phenomena responsible of the outperforming MS data offered by these techniques.
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23
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Cao X, Ma C, Gao Z, Zheng J, He L, McClements DJ, Xiao H. Characterization of the Interactions between Titanium Dioxide Nanoparticles and Polymethoxyflavones Using Surface-Enhanced Raman Spectroscopy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:9436-9441. [PMID: 27960290 DOI: 10.1021/acs.jafc.6b03906] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Nanosized titanium dioxide (TiO2) particles are commonly present in TiO2 food additives (E171) and have been associated with potential adverse effects on health. However, little knowledge is available regarding the interactions between TiO2 nanoparticles (NPs) and other food components, such as flavonoids. In this study, we aim to study the molecular interactions between TiO2 anatase NPs and three structurally closely related polymethoxyflavones (PMFs, flavonoids found in citrus fruits), namely, 3',4'-didemethylnobiletin (DDN), 5-demethylnobiletin (5DN), and 5,3',4'-tridemethylnobiletin (TDN), using ultraviolet-visible (UV-vis) spectrometry and surface-enhanced Raman spectroscopy (SERS). In the UV-vis absorption spectra, bathochromic effects were observed after DDN and TDN conjugated with TiO2 NPs. The results from SERS analysis clearly demonstrated that DDN and TDN could bind TiO2 NPs with the functional groups 3'-OH and 4'-OH on ring B and formed charge-transfer complexes. However, 5DN with functional groups C═O on ring C and 5-OH on ring A could not bind TiO2 NPs. Knowledge on the molecular interactions between TiO2 NPs and food components, such as flavonoids, will facilitate the understanding of the fate of TiO2 NPs during food processing and in the gastrointestinal tract after oral consumption.
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Affiliation(s)
- Xiaoqiong Cao
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Changchu Ma
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Zili Gao
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Jinkai Zheng
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
- Institute of Agro-Products Processing Science and Technology, Chinese Academy of Agricultural Sciences , Beijing 100193, People's Republic of China
| | - Lili He
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - David Julian McClements
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Hang Xiao
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
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24
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Wu CY, Lee KC, Kuo YL, Chen YC. Revisiting the quantitative features of surface-assisted laser desorption/ionization mass spectrometric analysis. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:rsta.2015.0379. [PMID: 27644973 PMCID: PMC5031644 DOI: 10.1098/rsta.2015.0379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/23/2016] [Indexed: 06/06/2023]
Abstract
Surface-assisted laser desorption/ionization (SALDI) coupled with mass spectrometry (MS) is frequently used to analyse small organics owing to its clean background. Inorganic materials can be used as energy absorbers and the transfer medium to facilitate the desorption/ionization of analytes; thus, they are used as SALDI-assisting materials. Many studies have demonstrated the usefulness of SALDI-MS in quantitative analysis of small organics. However, some characteristics occurring in SALDI-MS require certain attention to ensure the reliability of the quantitative analysis results. The appearance of a coffee-ring effect in SALDI sample preparation is the primary factor that can affect quantitative SALDI-MS analysis results. However, to the best of our knowledge, there are no reports relating to quantitative SALDI-MS analysis that discuss or consider this effect. In this study, the coffee-ring effect is discussed using nanoparticles and nanostructured substrates as SALDI-assisting materials to show how this effect influences SALDI-MS analysis results. Potential solutions for overcoming the existing problems are also suggested.This article is part of the themed issue 'Quantitative mass spectrometry'.
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Affiliation(s)
- Ching-Yi Wu
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Kai-Chieh Lee
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yen-Ling Kuo
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yu-Chie Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
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25
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Chitanda JM, Zhang H, Pahl E, Purves RW, El-Aneed A. The Development of Novel Nanodiamond Based MALDI Matrices for the Analysis of Small Organic Pharmaceuticals. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:1686-1693. [PMID: 27488316 DOI: 10.1007/s13361-016-1454-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/28/2016] [Accepted: 06/30/2016] [Indexed: 06/06/2023]
Abstract
The utility of novel functionalized nanodiamonds (NDs) as matrices for matrix-assisted laser desorption ionization-mass spectrometry (MALDI-MS) is described herein. MALDI-MS analysis of small organic compounds (<1000 Da) is typically complex because of interferences from numerous cluster ions formed when using conventional matrices. To expand the use of MALDI for the analysis of small molecules, novel matrices were designed by covalently linking conventional matrices (or a lysine moiety) to detonated NDs. Four new functionalized NDs were evaluated for their ionization capabilities using five pharmaceuticals with varying molecular structures. Two ND matrices were able to ionize all tested pharmaceuticals in the negative ion mode, producing the deprotonated ions [M - H](-). Ion intensity for target analytes was generally strong with enhanced signal-to-noise ratios compared with conventional matrices. The negative ion mode is of great importance for biological samples as interference from endogenous compounds is inherently minimized in the negative ion mode. Since the molecular structures of the tested pharmaceuticals did not suggest that negative ion mode would be preferable, this result magnifies the importance of these findings. On the other hand, conventional matrices primarily facilitated the ionization as expected in the positive ion mode, producing either the protonated molecules [M + H](+) or cationic adducts (typically producing complex spectra with numerous adduct peaks). The data presented in this study suggests that these matrices may offer advantages for the analysis of low molecular weight pharmaceuticals/metabolites. Graphical Abstract ᅟ.
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Affiliation(s)
| | | | - Erica Pahl
- University of Saskatchewan, Saskatoon, Canada
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26
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Juang YM, Chien HJ, Chen CJ, Lai CC. Graphene flakes enhance the detection of TiO2-enriched catechins by SALDI-MS after microwave-assisted enrichment. Talanta 2016; 153:347-52. [DOI: 10.1016/j.talanta.2016.03.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 03/01/2016] [Accepted: 03/01/2016] [Indexed: 12/14/2022]
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27
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Popović I, Nešić M, Vranješ M, Šaponjić Z, Petković M. TiO2 nanocrystals – assisted laser desorption and ionization time-of-flight mass spectrometric analysis of steroid hormones, amino acids and saccharides. Validation and comparison of methods. RSC Adv 2016. [DOI: 10.1039/c5ra20042c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The possibilities for the application of various TiO2 nanocrystals for substrate-assisted laser desorption/ionization time-of-flight mass spectrometric quantitative analysis of steroid hormones, amino acids and saccharides is presented in this work.
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Affiliation(s)
- I. Popović
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Republic of Serbia
| | - M. Nešić
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Republic of Serbia
| | - M. Vranješ
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Republic of Serbia
| | - Z. Šaponjić
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Republic of Serbia
| | - M. Petković
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Republic of Serbia
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28
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Smirnova N, Fesenko T, Zhukovsky M, Goworek J, Eremenko A. Photodegradation of Stearic Acid Adsorbed on Superhydrophilic TiO2 Surface: In Situ FT-IR and LDI Study. NANOSCALE RESEARCH LETTERS 2015; 10:500. [PMID: 26714862 PMCID: PMC4695485 DOI: 10.1186/s11671-015-1210-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 12/21/2015] [Indexed: 06/05/2023]
Abstract
TiO2 films prepared by template-assisted sol-gel method were characterized by X-ray diffraction spectroscopy, scanning and atomic force electron microscopy, and Fourier transform infrared (FT-IR) spectroscopy. Based on the hexane adsorption-desorption analysis, the films have a surface area of 390-540 m(2)/g with pore size distribution narrowly centered around 10 nm. Optimal component ratio and condition of heat treatment of mesoporous titania films have been found. Photocatalytic activity of the coatings was determined by the destruction of stearic acid layers, monitored using FT-IR spectroscopy and laser desorption-ionization (LDI) mass spectrometry. Under UV illumination, all the used films reach hydrophilicity with water contact angle of 0°. As the result, hydrophobic fat acid molecules undergo self-association and active desorption from the hydrophilic surface during mass-spectrometric experiment.
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Affiliation(s)
- Natalia Smirnova
- O.Chuiko Institute of Surface Chemistry, Ukrainian National Academy of Sciences, 17 General Naumov, Kyiv, 03680, Ukraine.
| | - Tatiana Fesenko
- O.Chuiko Institute of Surface Chemistry, Ukrainian National Academy of Sciences, 17 General Naumov, Kyiv, 03680, Ukraine.
| | - Maxim Zhukovsky
- O.Chuiko Institute of Surface Chemistry, Ukrainian National Academy of Sciences, 17 General Naumov, Kyiv, 03680, Ukraine.
| | - Jacek Goworek
- Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. Maria Curie-Skłodowskiej 3, 2-031, Lublin, Poland.
| | - Anna Eremenko
- O.Chuiko Institute of Surface Chemistry, Ukrainian National Academy of Sciences, 17 General Naumov, Kyiv, 03680, Ukraine.
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29
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Cheng YH, Chen WC, Chang SY. Rapid determination of rivaroxaban in human urine and serum using colloidal palladium surface-assisted laser desorption/ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:1977-1983. [PMID: 26443396 DOI: 10.1002/rcm.7308] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/29/2015] [Accepted: 08/06/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE Rivaroxaban is a new anticoagulant drug that has recently been introduced for clinical applications. To ensure optimum efficacy while minimizing the risk of toxicity and other adverse effects, a simple and sensitive analytical procedure for monitoring the concentration of rivaroxaban in biological fluids is required. METHODS Rivaroxaban was extracted from aqueous solutions by dispersive liquid-liquid microextraction (DLLME). Detection of rivaroxaban was achieved through surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) using colloidal palladium as the SALDI matrix. RESULTS The calibration curve for rivaroxaban in aqueous solutions was linear over the concentration range from 5 to 500 nM. The limit of detection (LOD) for rivaroxaban at a signal-to-noise ratio of 3 was 2 nM. With a sample-to-extract volume ratio of 200, the enrichment factors were calculated to be 141. This method was successfully applied for the determination of rivaroxaban in human urine and serum samples. The LODs for rivaroxaban in urine and serum were calculated to be 6 nM and 60 nM, respectively. CONCLUSIONS The analysis speed, together with the ease of operation and high sensitivity, allows SALDI-MS method to be particularly suitable for the high-throughput screening of rivaroxaban levels in human urine and serum samples.
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Affiliation(s)
- Yu-Han Cheng
- Department of Chemistry, National Kaohsiung Normal University, No. 62, Shenjhong Road, Yanchao, Kaohsiung, Taiwan, 824
| | - Wen-Chi Chen
- Division of Gastroenterology, Department of Medicine, Kaohsiung Veterans General Hospital, 386 Ta-Chung 1st Road, Kaohsiung, Taiwan, 813
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, 112
| | - Sarah Y Chang
- Department of Chemistry, National Kaohsiung Normal University, No. 62, Shenjhong Road, Yanchao, Kaohsiung, Taiwan, 824
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30
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Guinan TM, Kirkbride P, Della Vedova CB, Kershaw SG, Kobus H, Voelcker NH. Direct detection of illicit drugs from biological fluids by desorption/ionization mass spectrometry with nanoporous silicon microparticles. Analyst 2015; 140:7926-33. [DOI: 10.1039/c5an01754h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface assisted laser desorption/ionization mass spectrometry (SALDI-MS) with porous silicon microparticles was used for the all-in-one extraction and detection of illicit drugs from saliva, urine and plasma.
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Affiliation(s)
- T. M. Guinan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Mawson Institute
- Australia
| | - P. Kirkbride
- School of Physical and Chemical Sciences
- Flinders University
- Bedford Park
- Australia
| | - C. B. Della Vedova
- School of Pharmacy and Medical Sciences
- University of South Australia
- Adelaide
- Australia
| | - S. G. Kershaw
- School of Pharmacy and Medical Sciences
- University of South Australia
- Adelaide
- Australia
| | - H. Kobus
- School of Physical and Chemical Sciences
- Flinders University
- Bedford Park
- Australia
| | - N. H. Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Mawson Institute
- Australia
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31
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Salwiński A, Da Silva D, Delépée R, Maunit B. Enzyme-coupled nanoparticles-assisted laser desorption ionization mass spectrometry for searching for low-mass inhibitors of enzymes in complex mixtures. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:538-547. [PMID: 24549893 DOI: 10.1007/s13361-014-0826-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 01/06/2014] [Accepted: 01/06/2014] [Indexed: 06/03/2023]
Abstract
In this report, enzyme-coupled magnetic nanoparticles (EMPs) were shown to be an effective affinity-based tool for finding specific interactions between enzymatic targets and the low-mass molecules in complex mixtures using classic MALDI-TOF apparatus. EMPs used in this work act as nonorganic matrix enabling ionization of small molecules without any interference in the low-mass range (enzyme-coupled nanoparticles-assisted laser desorption ionization MS, ENALDI MS) and simultaneously carry the superficial specific binding sites to capture inhibitors present in a studied mixture. We evaluated ENALDI approach in two complementary variations: 'ion fading' (IF-ENALDI), based on superficial adsorption of inhibitors and 'ion hunting' (IH-ENALDI), based on selective pre-concentration of inhibitors. IF-ENALDI was applied for two sets of enzyme-inhibitor pairs: tyrosinase-glabridin and trypsin-leupeptin and for the real plant sample: Sparrmannia discolor leaf and stem methanol extract. The efficacy of IH-ENALDI was shown for the pair of trypsin-leupeptin. Both ENALDI approaches pose an alternative for bioassay-guided fractionation, the common method for finding inhibitors in the complex mixtures.
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Kusano M, Kawabata SI, Tamura Y, Mizoguchi D, Murouchi M, Kawasaki H, Arakawa R, Tanaka K. Laser Desorption/Ionization Mass Spectrometry (LDI-MS) of Lipids with Iron Oxide Nanoparticle-Coated Targets. Mass Spectrom (Tokyo) 2014; 3:A0026. [PMID: 24860715 PMCID: PMC3967010 DOI: 10.5702/massspectrometry.a0026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 12/27/2013] [Indexed: 11/23/2022] Open
Abstract
Iron oxide nanoparticle (NP)-coated target plates were employed for the direct detection and analysis of low molecular weight lipids by laser desorption/ionization (LDI) mass spectrometry (MS). We have demonstrated that the use of the iron oxide NP-coated target provides a simple, direct, and rapid detection method for lipid standards and epidermal surface lipids without any cumbersome sample pretreatment as well as mass spectra that are free of background matrix peaks. Lipid standards (1-stearoyl-sn-glycero-3-phosphocholine, 1,2-dioleoyl-sn-glycerol, 1-palmitoyl-2-oleoyl-3-linoleoyl-rac-glycerol, 1,2-distearoyl-sn-glycero-3-phosphocholine) were detected as either protonated or cationated species. Clean MS/MS spectra for each lipid were also successfully obtained. Pre-MS surface cleaning of the target plates with UV-ozone treatment successfully removed organic contaminants that would interfere with the mass spectra especially in the low molecular weight region. Preliminary application of the presented target plate to the detection of endogenous lipids in latent fingerprints showed promising results and for potential use in the visualization and chemical composition determination of latent fingerprints by nanoparticle assistance.
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Affiliation(s)
- Maiko Kusano
- Koichi Tanaka Laboratory of Advanced Science and Technology, Shimadzu Corporation
| | | | | | | | | | - Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials, and Bioengineering, Kansai University
| | - Ryuichi Arakawa
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials, and Bioengineering, Kansai University
| | - Koichi Tanaka
- Koichi Tanaka Laboratory of Advanced Science and Technology, Shimadzu Corporation
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Li Z, Zhang YW, Xin YL, Bai Y, Zhou HH, Liu HW. A lithium-rich composite metal oxide used as a SALDI-MS matrix for the determination of small biomolecules. Chem Commun (Camb) 2014; 50:15397-9. [DOI: 10.1039/c4cc07479c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A lithium-rich composite metal oxide material used as a SALDI matrix for high throughput analysis of small molecules.
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Affiliation(s)
- Ze Li
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, China
| | - Yi-Wei Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, China
| | - Yue-Long Xin
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, China
| | - Yu Bai
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, China
| | - Heng-Hui Zhou
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, China
| | - Hu-Wei Liu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, China
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Cheng MC, Chi KM, Chang SY. Detection of digoxin in urine samples by surface-assisted laser desorption/ionization mass spectrometry with dispersive liquid–liquid microextraction. Talanta 2013; 115:123-8. [DOI: 10.1016/j.talanta.2013.04.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 04/17/2013] [Accepted: 04/18/2013] [Indexed: 01/22/2023]
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Chiu WC, Huang CC. Combining Fibrinogen-Conjugated Gold Nanoparticles with a Cellulose Membrane for the Mass Spectrometry-Based Detection of Fibrinolytic-Related Proteins. Anal Chem 2013; 85:6922-9. [DOI: 10.1021/ac4013418] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | - Chih-Ching Huang
- School of Pharmacy,
College of
Pharmacy, Kaohsiung Medical University,
Kaohsiung 80708, Taiwan
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Lin ZH, Xie Y, Yang Y, Wang S, Zhu G, Wang ZL. Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO2 nanomaterials. ACS NANO 2013; 7:4554-4560. [PMID: 23597018 DOI: 10.1021/nn401256w] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mechanical energy harvesting based on triboelectric effect has been proven to be a simple, cost-effective, and robust method for electricity generation. In this study, we developed a rationally designed triboelectric nanogenerator (TENG) by utilizing the contact electrification between a polytetrafluoroethylene (PTFE) thin film and a layer of TiO2 nanomaterial (nanowire and nanosheet) array. The as-developed TENG was systematically studied and demonstrated as a self-powered nanosensor toward catechin detection. The high sensitivity (detection limit of 5 μM) and selectivity are achieved through a strong interaction between Ti atoms of TiO2 nanomaterial and enediol group of catechin. The output voltage and current density were increased by a factor of 5.0 and 2.9, respectively, when adsorbed with catechin of a saturated concentration, because of the charge transfer from catechin to TiO2. This study demonstrates the possibility of improving the electrical output of TENG through chemical modification.
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Affiliation(s)
- Zong-Hong Lin
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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Abdelhamid HN, Wu HF. Furoic and mefenamic acids as new matrices for matrix assisted laser desorption/ionization-(MALDI)-mass spectrometry. Talanta 2013; 115:442-50. [PMID: 24054616 DOI: 10.1016/j.talanta.2013.05.050] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 05/17/2013] [Accepted: 05/21/2013] [Indexed: 10/26/2022]
Abstract
The present study introduces two novel organic matrices for matrix assisted laser desorption/ionization mass spectrometry (MALDI-MS) for the analysis of small molecules. The first matrix is "2-amino-4,5-diphenylfuran-3-carboxylic acid" (also called furoic acid, FA) which was synthesized and then characterized by ultraviolet (UV), infrared (FTIR), nuclear magnetic resonance NMR ((1)H and (13)C) and mass spectrometry. The compound has organic semiconductor properties and exhibits intense UV-absorption which is suitable for the UV-MALDI laser (N2 laser, 337 nm). The second matrix is mefenamic acid (MA). The two matrices can be successfully applied for various classes of compounds including adenosine-5'-triphosphate (ATP, 0.5 µL(10.0 nmol)), spectinomycin (spect, 0.5 µL(14.0 nmol)), glutathione (GSH, 0.5 µL(9.0 nmol)), sulfamethazole (SMT, 0.5 µL(2.0 nmol)) and mixture of peptides gramicidin D (GD, 0.5µL (9.0 nmol)). The two matrices can effectively absorb the laser energy, resulting in excellent desorption/ionization of small molecules. The new matrices offer a significant enhancement of ionization, less fragmentation, few interferences, nice reproducibility, and excellent stability under vacuum. Theoretical calculations of the physical parameters demonstrated increase in polarizability, molar volume and refractivity than the conventional organic matrices which can effectively enhance the proton transfer reactions between the matrices with the analyte molecules. While the reduction in density, surface tension and index of refraction can enhance homogeneity between the two new matrices with the analytes. Due to the sublimation energy of mefenamic acid is (1.2 times) higher than that of the DHB, it is more stable to be used in the vacuum.
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Iwaki Y, Kawasaki H, Arakawa R. Human serum albumin-modified Fe3O4 magnetic nanoparticles for affinity-SALDI-MS of small-molecule drugs in biological liquids. ANAL SCI 2013; 28:893-900. [PMID: 22975918 DOI: 10.2116/analsci.28.893] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Here, we report on the use of human serum albumin (HSA)-modified Fe(3)O(4) nanoparticles (NPs) (HSA-Fe(3)O(4) NPs) for affinity-SALDI-MS of small drugs in human biological liquids. We demonstrated that HSA-Fe(3)O(4) NPs effectively captured small drugs from human urine and serum via the interactions between HSA and these drugs. The drugs adsorbed on HSA could then be identified by directly introducing the HSA-Fe(3)O(4) NPs into a mass spectrometer for SALDI-MS analysis. The ability of HSA to interact with multiple small drugs facilitated the simultaneous detection of a 4-drug-mixture in serum, viz., phenytoin, ibuprofen, camptothecin, and warfarin sodium, by affinity-SALDI-MS using HSA-Fe(3)O(4) NPs. In contrast, matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) with an organic matrix could detect only warfarin sodium. We also demonstrated the capacity of affinity-SALDI-MS to quantify warfarin sodium in urine samples across a range of 50 - 1000 μM (R(2) = 0.998) when using HSA-Fe(3)O(4) NPs. The detection sensitivity was further improved to a range of 5 - 100 μM (R(2) = 0.999) by using denatured HSA. The open structure of denatured HSA may enhance the effective extraction of small drugs from biological liquids, and increase the detection-sensitivity of affinity-SALDI-MS. Affinity-SALDI-MS using protein-modified Fe(3)O(4) NPs can open up new approaches to the analytical detection of small drugs in biological liquids by SALDI-MS.
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Affiliation(s)
- Yuichi Iwaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka, Japan
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Quantitative surface-assisted laser desorption/ionization–MS approaches for bioanalysis. Bioanalysis 2013; 5:633-5. [DOI: 10.4155/bio.13.4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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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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41
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Silina YE, Volmer DA. Nanostructured solid substrates for efficient laser desorption/ionization mass spectrometry (LDI-MS) of low molecular weight compounds. Analyst 2013; 138:7053-65. [DOI: 10.1039/c3an01120h] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Yonezawa T, Tsukamoto H, Hayashi S, Myojin Y, Kawasaki H, Arakawa R. Suitability of GaP nanoparticles as a surface-assisted laser desorption/ionization mass spectroscopy inorganic matrix and their soft ionization ability. Analyst 2013; 138:995-9. [DOI: 10.1039/c2an36738f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Chen WT, Chang HT. Tea Identification through Surface-Assisted Laser Desorption/Ionization Mass Spectrometry. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ijamsc.2013.11003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Radisavljević M, Kamčeva T, Vukićević I, Radoičić M, Šaponjić Z, Petković M. Colloidal TiO2 nanoparticles as substrates for M(S)ALDI mass spectrometry of transition metal complexes. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:2041-2050. [PMID: 22847704 DOI: 10.1002/rcm.6320] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE Nanoparticles as substrates for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) have advantages over organic matrices, since they enable acquisition of spectra in the low-mass range. It has been previously shown that TiO(2) nanoparticles can be used as substrate for MALDI-TOF MS analysis of phospholipids and for other types of molecules, but none of them was applied to the analysis of transition metal complexes. METHODS The MALDI-TOF mass spectra of potential anti-tumor drugs [AuCl(2)(bipy)]Cl, [PtCl(4)(bipy)], and [RuCl(2)(bipy)(2) ]Cl acquired with organic matrices have been compared with spectra acquired with colloidal titanium dioxide nanoparticles. Colloidal TiO(2) nanoparticles (NPs) with average diameter of 5 nm were synthesized and characterized by microscopy. For some experiments, the TiO(2) NPs were treated at 60 °C. Suspensions of matrix and the analyte were premixed, applied to the MALDI target and left at room temperature. Mass spectra were acquired with a 50-Hz pulsed nitrogen laser emitting at a wavelength of 337 nm. RESULTS The MALDI spectra of transition metal complexes acquired with TiO(2) NPs exhibited somewhat lower sensitivity than those with organic matrices; on the other hand, they are characterized by significantly lower number of signals arising from the tested complexes than the organic matrices. Whereas adducts between organic matrices and the analytes were detectable in the spectra, this was not the case for the TiO(2)-assisted mass spectra. CONCLUSIONS We have shown that colloidal TiO(2) NPs can be used as substrates for MALDI-TOF MS of transition metal complexes. Although the sensitivity of this approach in comparison with the use of organic matrices might still be a problem, the potential of the applications of NPs for the mass spectrometric characterization of transition metal complexes is clearly demonstrated.
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Affiliation(s)
- Maja Radisavljević
- Department of Physical Chemistry, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Republic of Serbia
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Hsieh YT, Chen WT, Tomalová I, Preisler J, Chang HT. Detection of melamine in infant formula and grain powder by surface-assisted laser desorption/ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:1393-1398. [PMID: 22592982 DOI: 10.1002/rcm.6238] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have developed a method for the determination of melamine (MEL), ammeline (AMN), and ammelide (AMD) by surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) using gold nanoparticles (Au NPs). The major peaks for MEL, AMN, and AMD at m/z 127.07, 128.05, and 129.04 are assigned to the [MEL + H](+), [AMN + H](+), and [AMD + H](+) ions. Because the three tested compounds adsorb weakly onto the surfaces of the Au NPs through Au-N bonding, they can be easily concentrated from complex samples by applying a simple trapping/centrifugation process. The SALDI-MS method provides limits of detection of 5, 10, and 300 nM for MEL, AMN, and AMD, respectively, at a signal-to-noise ratio of 3. The signal variation for 150-shot average spectra of the three analytes within the same spot was 15%, and the batch-to-batch variation was 20%. We have validated the practicality of this approach by the analysis of these three analytes in infant formula and grain powder. This simple and rapid SALDI-MS approach holds great potential for screening of MEL in foods.
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Affiliation(s)
- Yi-Ting Hsieh
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
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Krenkova J, Foret F, Svec F. Less common applications of monoliths: V. Monolithic scaffolds modified with nanostructures for chromatographic separations and tissue engineering. J Sep Sci 2012; 35:1266-83. [DOI: 10.1002/jssc.201100956] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jana Krenkova
- Institute of Analytical Chemistry of the ASCR; Brno; Czech Republic
| | - Frantisek Foret
- Institute of Analytical Chemistry of the ASCR; Brno; Czech Republic
| | - Frantisek Svec
- The Molecular Foundry; E. O. Lawrence Berkeley National Laboratory; Berkeley; California; USA
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Chen KY, Yang TC, Chang SY. Determination of macrolide antibiotics using dispersive liquid-liquid microextraction followed by surface-assisted laser desorption/ionization mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:1157-1160. [PMID: 22446991 DOI: 10.1007/s13361-012-0371-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Revised: 03/05/2012] [Accepted: 03/06/2012] [Indexed: 05/31/2023]
Abstract
A novel method for the determination of macrolide antibiotics using dispersive liquid-liquid microextraction coupled to surface-assisted laser desorption/ionization mass spectrometric detection was developed. Acetone and dichloromethane were used as the disperser solvent and extraction solvent, respectively. A mixture of extraction solvent and disperser solvent were rapidly injected into a 1.0 mL aqueous sample to form a cloudy solution. After the extraction, macrolide antibiotics were detected using surface-assisted laser desorption/ionization mass spectrometry (SALDI/MS) with colloidal silver as the matrix. Under optimum conditions, the limits of detection (LODs) at a signal-to-noise ratio of 3 were 2, 3, 3, and 2 nM for erythromycin (ERY), spiramycin (SPI), tilmicosin (TILM), and tylosin (TYL), respectively. This developed method was successfully applied to the determination of macrolide antibiotics in human urine samples.
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Affiliation(s)
- Kuan-Yu Chen
- Department of Chemistry, National Kaohsiung Normal University, no. 62, Shenjhong Rd., Yanchao, Kaohsiung, Taiwan, 824
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Chen WT, Chiang CK, Lee CH, Chang HT. Using surface-assisted laser desorption/ionization mass spectrometry to detect proteins and protein-protein complexes. Anal Chem 2012; 84:1924-30. [PMID: 22264081 DOI: 10.1021/ac202883q] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In this study, we combined surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) with HgTe nanostructures as matrix for the detection of several proteins (α1-antitrypsin, trypsin, IgG, protein G) and their complexes. We investigated the effects of several parameters (the concentration and nature of surfactants and metal ions, the pH, and concentration of the analytes in the sample matrixes) on the sensitivity of the detection of these proteins and their complexes. The presence of stabilizing Brij 76 surfactant and Zn(II) ions allowed the detection of weak protein complexes, such as α1-antitrypsin-trypsin and IgG-protein G complexes, at the picomole level. We observed multiply charged states at m/z 72,160 ([α1-antitrypsin + trypsin + H](+)) and 86,585 ([IgG + protein G + 2H](2+)) for the α1-antitrypsin-trypsin and IgG-protein G complexes, respectively. To the best of our knowledge, detection of weak protein complexes and determination of their stoichiometry have not been demonstrated previously when a combination of SALDI-MS and nanostructures were used. This simple and reproducible SALDI-MS approach using HgTe nanostructures holds great potential for the detection of other proteins and their complexes.
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Affiliation(s)
- Wen-Tsen Chen
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
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49
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Huang MF, Chang HT. Detection of carbohydrates using surface-assisted laser desorption/ionization mass spectrometry with HgTe nanostructures. Chem Sci 2012. [DOI: 10.1039/c2sc01066f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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50
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Hsieh YT, Chen WT, Chang HT. Detection of Nucleoside Monophosphates through Surface-Assisted Laser, Desorption/Ionization Mass Spectrometry Using CTAB-Adsorbed Gold, Nanoparticles. J CHIN CHEM SOC-TAIP 2011. [DOI: 10.1002/jccs.201190119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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