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Xu S, Liu M, Feng J, Yan G, Bai Y, Liu H. One-step hexaplex immunoassays by on-line paper substrate-based electrospray ionization mass spectrometry for combined cancer biomarker screening. Chem Sci 2021; 12:4916-4924. [PMID: 34163739 PMCID: PMC8179536 DOI: 10.1039/d0sc06784a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/13/2021] [Indexed: 12/30/2022] Open
Abstract
Mass spectrometry (MS) is attractive as a multiplexed immunoassay readout benefiting from its high sensitivity, speed and mass resolution. Here, a simple paper-based hexaplex immunoassay with an on-line MS readout was proposed, using functionalized paper as the immune substrates, along with rhodamine-based mass tags assembled on gold nanoparticles prepared as the mass probes (MPs). Simultaneous immune capture and labeling were conducted in one step on paper substrates in 96-well plates with a high throughput within 30 minutes, and the on-line efficient dissociation of the mass tags highly facilitated the hexaplex readout of the immune signals by a newly established on-line paper substrate-based electrospray ionization-MS setup. Six MPs were synthesized for the simultaneous quantification of six important cancer protein markers (cancer antigen 15-3, cancer antigen 19-9, carcinoma embryonic antigen, cancer antigen 125, human epididymis protein 4, and alpha fetoprotein) using only 10 μL serum, presenting satisfactory sensitivity, accuracy and specificity. This platform was further tested in screening for the six biomarkers in serum samples of patients with breast, liver and gastric cancers, showing its high potential for sensitive and specific early cancer diagnosis.
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Affiliation(s)
- Shuting Xu
- 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 P. R. China +86 10 6275 8198
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University Wuxi 214122 P. R. China
| | - Mingxia 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 P. R. China +86 10 6275 8198
| | - Jie Feng
- Department of Clinical Laboratory Center, The First Medical Center of the Chinese People's Liberation Army General Hospital Beijing 100853 P. R. China
| | - Guangtao Yan
- Department of Clinical Laboratory Center, The First Medical Center of the Chinese People's Liberation Army General Hospital Beijing 100853 P. R. 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 P. R. China +86 10 6275 8198
| | - Huwei 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 P. R. China +86 10 6275 8198
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2
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Xu S, Liu M, Bai Y, Liu H. Multi-Dimensional Organic Mass Cytometry: Simultaneous Analysis of Proteins and Metabolites on Single Cells. Angew Chem Int Ed Engl 2020; 60:1806-1812. [PMID: 33085796 DOI: 10.1002/anie.202009682] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Indexed: 12/11/2022]
Abstract
Mass cytometry is attracting significant attention for enabling spatiotemporal high-throughput single-cell analysis. As the first demonstration of the simultaneous detection of single-cell proteins and untargeted metabolites, a multi-dimensional organic mass-cytometry system was established by a simple microfluidic chip connected to a nanoelectrospray mass spectrometer, providing useful heterogeneous information about the cells. A series of mass probes with online-dissociated mass tags were developed, ensuring the semi-quantification of cell-surface proteins and the compatibility of endogenous metabolite detection at the single-cell level. Six cell surface antigens and ≈100 metabolites from three ovarian-cancer cell types and two breast-cancer cell types were successfully monitored and contributed to highly sensitive and specific cell typing. Doxorubicin-resistant cancer-cell analysis confirmed the applications in distinguishing rare cell phenotypes. The proposed system is simple, extensible, and promising for cell typing, drug-resistance analysis of tumor cells, and clinical diagnosis and therapy at the single-cell level.
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Affiliation(s)
- Shuting Xu
- 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, P. R. China
| | - Mingxia 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, P. R. 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, P. R. China
| | - Huwei 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, P. R. China
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3
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Xu S, Liu M, Bai Y, Liu H. Multi‐Dimensional Organic Mass Cytometry: Simultaneous Analysis of Proteins and Metabolites on Single Cells. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shuting Xu
- 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 P. R. China
| | - Mingxia 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 P. R. 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 P. R. China
| | - Huwei 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 P. R. China
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4
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Min K, Guo P, Chen D, Huang S, Luo W, Ma M, Chen B, Yao S, Zuilhof H. Direct and quantitative in-situ analysis of third-hand smoke in and on various matrices by ambient desorption corona beam ionization mass spectrometry. Talanta 2020; 219:121330. [PMID: 32887064 DOI: 10.1016/j.talanta.2020.121330] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/18/2020] [Accepted: 06/23/2020] [Indexed: 12/21/2022]
Abstract
Third-hand smoke (THS) is composed of surface-deposited remnants resulting from tabacco-smoking. Because THS components have properties of remaining on, re-emitting from and reacting on and with surfaces, in-situ analysis of the components on different surfaces is both in high demand and challenging. The aim of this study is to establish desorption corona beam ionization (DCBI)-MS/MS as an analytical tool for THS research. To this end, an in-situ DCBI-MS/MS approach was developed for the quantitative analysis of typical THS environmental markers, i.e. nicotine and cotinine on different surfaces such as fruits, cotton clothing, glass, and toys etc. The limits of detection of nicotine and cotinine were both 1.4 μg m-2. Low-temperature DCBI-MS/MS was applied to the direct detection of THS on fingers without any skin damage. Smoking-related biomarkers analyses in urine were accomplished, with a 10 s DCBI analysis time. The on-surface tobacco-specific nitrosamines (TSNAs), such as 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal) (NNA), 4-(methylnitrosamino)-1-(3-pyridinyl)-1-butanone (NNK), and N-nitroso nornicotine (NNN) were in-situ successfully detected in dust samples.
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Affiliation(s)
- Ke Min
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Ping Guo
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Dongying Chen
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Si Huang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China; Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6703 WE, Wageningen, the Netherlands
| | - Wei Luo
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China; Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6703 WE, Wageningen, the Netherlands
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China.
| | - Shouzhuo Yao
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China.
| | - Han Zuilhof
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China; Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6703 WE, Wageningen, the Netherlands; Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia.
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5
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Gahtory D, Sen R, Smulders MMJ, Zuilhof H. Surface-bound quadruple H-bonded dimers: formation and exchange kinetics. Faraday Discuss 2019; 204:383-394. [PMID: 28776617 DOI: 10.1039/c7fd00068e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
While the mechanistic details of the dimerization of the self-complementary 2-ureido-4(1H)-pyrimidinone (UPy) motif are well studied in solution, no such investigation is available on a surface. Here we report an extensive study of hydrogen binding kinetics for quadruply H-bonded UPy arrays on aluminum surfaces and explore the ON/OFF capability of such arrays under externally controllable conditions. Also, we investigate the dynamic nature of this system whereby the interfacially H-bonded UPy is displaced by another UPy derivative in solution, and reveal the kinetics of the exchange process.
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Affiliation(s)
- Digvijay Gahtory
- Laboratory of Organic Chemistry, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
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6
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Wen R, Zeng D, Yang Z, Jiang L, Ma M, Chen B, van Beek TA. Rapid Analysis of Illegal Cationic Dyes in Foods and Surface Waters Using High Temperature Direct Analysis in Real Time High-Resolution Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7542-7549. [PMID: 29954174 DOI: 10.1021/acs.jafc.8b02388] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A high temperature desorption (HTD) direct analysis in real time-high-resolution mass spectrometric (DART-HRMS) method was developed for the rapid analysis of four banned cationic dyes. Rhodamine B is used to dye foods, while malachite green, crystal violet, and methylene blue are added to fishponds as antimicrobials. A simple induced phase separation extraction was used to pretreat samples. The DART-HRMS method employed two temperature steps, i.e., 200 °C for drying, purification, and enrichment of sample solution and 500 °C for thermal desorption and ionization of analytes. The calibration curves of dyes in the range of 50-2000 ng/mL were linear using deuterated malachite green as an internal standard. The LODs vary for all analytes between 0.1 and 30 ppb depending on the matrix and experimental conditions. Through analyses of real samples, two chili powders and one chili oil were found to be contaminated by rhodamine B. The concentrations were comparable with those found by an HPLC-MS/MS method.
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Affiliation(s)
- Ruizhi Wen
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education , Hunan Normal University , Changsha 410081 , China
- School of Sciences , Central South University of Forestry & Technology , Changsha 410004 , China
| | - Dong Zeng
- Hunan Provincial Center for Disease Control and Prevention , Changsha 410005 , China
| | - Zihui Yang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education , Hunan Normal University , Changsha 410081 , China
| | - Le Jiang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education , Hunan Normal University , Changsha 410081 , China
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education , Hunan Normal University , Changsha 410081 , China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education , Hunan Normal University , Changsha 410081 , China
| | - Teris A van Beek
- Laboratory of Organic Chemistry , Wageningen University , Stippeneng 4 , 6708 WE Wageningen , The Netherlands
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7
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Gahtory D, Sen R, Pujari S, Li S, Zheng Q, Moses JE, Sharpless KB, Zuilhof H. Quantitative and Orthogonal Formation and Reactivity of SuFEx Platforms. Chemistry 2018; 24:10550-10556. [PMID: 29949211 PMCID: PMC6099289 DOI: 10.1002/chem.201802356] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Indexed: 01/14/2023]
Abstract
The constraints of minute reactant amounts and the impossibility to remove any undesired surface‐bound products during monolayer functionalization of a surface necessitate the selection of efficient, modular and orthogonal reactions that lead to quantitative conversions. Herein, we explore the character of sulfur–fluoride exchange (SuFEx) reactions on a surface, and explore the applicability for quantitative and orthogonal surface functionalization. To this end, we demonstrate the use of ethenesulfonyl fluoride (ESF) as an efficient SuFEx linker for creating “SuFEx‐able” monolayer surfaces, enabling three distinct approaches to utilize SuFEx chemistry on a surface. The first approach relies on a di‐SuFEx loading allowing dual functionalization with a nucleophile, while the two latter approaches focus on dual (CuAAC–SuFEx/SPOCQ–SuFEx) click platforms. The resultant strategies allow facile attachment of two different substrates sequentially on the same platform. Along the way we also demonstrate the Michael addition of ethenesulfonyl fluoride to be a quantitative surface‐bound reaction, indicating significant promise in materials science for this reaction.
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Affiliation(s)
- Digvijay Gahtory
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Rickdeb Sen
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Sidharam Pujari
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Suhua Li
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.,School of Chemistry, Sun Yat-Sen University, 135 Xingang Xi Road, Guangzhou, 510275, P.R. China
| | - Qinheng Zheng
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - John E Moses
- La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Melbourne, Victoria, 3086, Australia
| | - K Barry Sharpless
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.,School of Pharmaceutical Sciences and Technology, Tianjin University, 92 Weijin Road, Tianjin, P.R. China.,Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
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8
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Slagman S, Zuilhof H, Franssen MCR. Laccase-Mediated Grafting on Biopolymers and Synthetic Polymers: A Critical Review. Chembiochem 2018; 19:288-311. [PMID: 29111574 PMCID: PMC5836925 DOI: 10.1002/cbic.201700518] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Indexed: 12/27/2022]
Abstract
Laccase-mediated grafting on lignocelluloses has gained considerable attention as an environmentally benign method to covalently modify wood, paper and cork. In recent decades this technique has also been employed to modify fibres with a polysaccharide backbone, such as cellulose or chitosan, to infer colouration, antimicrobial activity or antioxidant activity to the material. The scope of this approach has been further widened by researchers, who apply mediators or high redox potential laccases and those that modify synthetic polymers and proteins. In all cases, the methodology relies on one- or two-electron oxidation of the surface functional groups or of the graftable molecule in solution. However, similar results can very often be achieved through simple deposition, even after extensive washing. This unintended adsorption of the active substance could have an adverse effect on the durability of the applied coating. Differentiating between actual covalent binding and adsorption is therefore essential, but proves to be challenging. This review not only covers excellent research on the topic of laccase-mediated grafting over the last five to ten years, but also provides a critical comparison to highlight either the lack or presence of compelling evidence for covalent grafting.
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Affiliation(s)
- Sjoerd Slagman
- Laboratory of Organic ChemistryWageningen University & ResearchStippeneng 46708 WEWageningenThe Netherlands
| | - Han Zuilhof
- Laboratory of Organic ChemistryWageningen University & ResearchStippeneng 46708 WEWageningenThe Netherlands
- School of Pharmaceutical Sciences and TechnologyTianjin University92 Weijin RoadNankai DistrictTianjin92000P. R. China
| | - Maurice C. R. Franssen
- Laboratory of Organic ChemistryWageningen University & ResearchStippeneng 46708 WEWageningenThe Netherlands
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9
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High throughput screening of phenoxy carboxylic acids with dispersive solid phase extraction followed by direct analysis in real time mass spectrometry. Anal Chim Acta 2017; 996:20-28. [DOI: 10.1016/j.aca.2017.10.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/13/2017] [Accepted: 10/09/2017] [Indexed: 01/30/2023]
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10
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Sen R, Escorihuela J, van Delft F, Zuilhof H. Rapid and Complete Surface Modification with Strain-Promoted Oxidation-Controlled Cyclooctyne-1,2-Quinone Cycloaddition (SPOCQ). Angew Chem Int Ed Engl 2017; 56:3299-3303. [PMID: 28198134 PMCID: PMC5363232 DOI: 10.1002/anie.201612037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Indexed: 12/31/2022]
Abstract
Strain-promoted oxidation-controlled cyclooctyne-1,2-quinone cycloaddition (SPOCQ) between functionalized bicyclo[6.1.0]non-4-yne (BCN) and surface-bound quinones revealed an unprecedented 100 % conjugation efficiency. In addition, monitoring by direct analysis in real time mass spectrometry (DART-MS) revealed the underlying kinetics and activation parameters of this immobilization process in dependence on its microenvironment.
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Affiliation(s)
- Rickdeb Sen
- Laboratory of Organic ChemistryWageningen University and ResearchStippeneng 46708 WEWageningenThe Netherlands
| | - Jorge Escorihuela
- Laboratory of Organic ChemistryWageningen University and ResearchStippeneng 46708 WEWageningenThe Netherlands
| | - Floris van Delft
- Laboratory of Organic ChemistryWageningen University and ResearchStippeneng 46708 WEWageningenThe Netherlands
| | - Han Zuilhof
- Laboratory of Organic ChemistryWageningen University and ResearchStippeneng 46708 WEWageningenThe Netherlands
- Department of Chemical and Materials EngineeringKing Abdulaziz UniversityJeddahSaudi Arabia
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11
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Rapid and Complete Surface Modification with Strain-Promoted Oxidation-Controlled Cyclooctyne-1,2-Quinone Cycloaddition (SPOCQ). Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Joshi S, Zuilhof H, van Beek TA, Nielen MWF. Biochip Spray: Simplified Coupling of Surface Plasmon Resonance Biosensing and Mass Spectrometry. Anal Chem 2017; 89:1427-1432. [PMID: 28208290 PMCID: PMC5348099 DOI: 10.1021/acs.analchem.6b04012] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
A simplified coupling
of surface plasmon resonance (SPR) immuno-biosensing
with ambient ionization mass spectrometry (MS) was developed. It combines
two orthogonal analysis techniques: the biosensing capability of SPR
and the chemical identification power of high resolution MS. As a
proof-of-principle, deoxynivalenol (DON), an important mycotoxin,
was captured using an SPR gold chip containing an antifouling layer
and monoclonal antibodies against the toxin and, after washing, the
chip could be taken out and analyzed by direct spray MS of the biosensor
chip to confirm the identity of DON. Furthermore, cross-reacting conjugates
of DON present in a naturally contaminated beer could be successfully
identified, thus showing the potential of rapid identification of
(un)expected cross-reacting molecules.
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Affiliation(s)
- Sweccha Joshi
- Laboratory of Organic Chemistry, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands.,TI-COAST , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Teris A van Beek
- Laboratory of Organic Chemistry, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Michel W F Nielen
- Laboratory of Organic Chemistry, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands.,RIKILT, Wageningen University & Research , P.O. Box 230, 6700 AE Wageningen, The Netherlands
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13
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He J, Fang C, Shelp RA, Zimmt MB. Tracking Invisible Transformations of Physisorbed Monolayers: LDI-TOF and MALDI-TOF Mass Spectrometry as Complements to STM Imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:459-467. [PMID: 27989120 DOI: 10.1021/acs.langmuir.6b03252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Triphenyleneethynylene (TPEE) derivatives bearing one long aliphatic chain on each terminal aryl ring and two short aliphatic chains on the central aryl ring (core chains) self-assemble single component and 1-D patterned, two-component, crystalline monolayers at the solution-graphite interface. The monolayer morphology directs the core chains off the graphite, making them accessible for chemical reactions but invisible to imaging by scanning tunneling microscopy (STM). This precludes using STM to monitor transformations of the core chains, either by reaction or solution-monolayer exchange of TPEE molecules. Laser desorption/ionization time-of-flight mass spectrometry (LDI-TOF MS) successfully identifies TPEE compounds within physisorbed monolayers. The LDI-TOF spectra of TPEE monolayer-graphite samples exhibit strong molecular ion peaks and minimal fragmentation or background. LDI-TOF and STM techniques are combined to evaluate monolayer composition and morphology, track solution-monolayer exchange, to identify reaction products and to measure kinetics of chemical reactions at the solution-monolayer interface. LDI-TOF MS provides rapid qualitative evaluation of monolayer composition across a graphite substrate. Challenges to quantitative composition evaluation by LDI-TOF include compound-specific light absorption, surface desorption/ionization and fragmentation characteristics. For some, but not all, compounds, applying matrix onto a self-assembled monolayer increases molecular ion intensities and affords more accurate assessment of monolayer composition via matrix assisted laser desorption/ionization (MALDI) MS. Matrix addition precludes subsequent chemical or STM studies of the monolayer, whereas reactions and STM may be performed at nonirradiated regions following LDI-TOF measurements. LDI- and MALDI-TOF MS are useful complements to STM and are easily implemented tools for study of physisorbed monolayers.
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Affiliation(s)
- Jian He
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Chen Fang
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Russell A Shelp
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Matthew B Zimmt
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
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14
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Sen R, Escorihuela J, Smulders MMJ, Zuilhof H. Use of Ambient Ionization High-Resolution Mass Spectrometry for the Kinetic Analysis of Organic Surface Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3412-9. [PMID: 27028705 DOI: 10.1021/acs.langmuir.6b00427] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
In contrast to homogeneous systems, studying the kinetics of organic reactions on solid surfaces remains a difficult task due to the limited availability of appropriate analysis techniques that are general, high-throughput, and capable of offering quantitative, structural surface information. Here, we demonstrate how direct analysis in real time mass spectrometry (DART-MS) complies with above considerations and can be used for determining interfacial kinetic parameters. The presented approach is based on the use of a MS tag that--in principle--allows application to other reactions. To show the potential of DART-MS, we selected the widely applied strain-promoted alkyne-azide cycloaddition (SPAAC) as a model reaction to elucidate the effects of the nanoenvironment on the interfacial reaction rate.
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Affiliation(s)
- Rickdeb Sen
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Jorge Escorihuela
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Maarten M J Smulders
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah, Saudi Arabia
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15
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Duvivier WF, van Putten MR, van Beek TA, Nielen MWF. (Un)targeted Scanning of Locks of Hair for Drugs of Abuse by Direct Analysis in Real Time-High-Resolution Mass Spectrometry. Anal Chem 2016; 88:2489-96. [PMID: 26813807 DOI: 10.1021/acs.analchem.5b04759] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Forensic hair evidence can be used to obtain retrospective timelines of drug use by analysis of hair segments. However, this is a laborious and time-consuming process, and mass spectrometric (MS) imaging techniques, which show great potential for single-hair targeted analysis, are less useful due to differences in hair growth rate between individual hairs. As an alternative, a fast untargeted analysis method was developed that uses direct analysis in real time-high-resolution mass spectrometry (DART-HRMS) to longitudinally scan intact locks of hair without extensive sample preparation or segmentation. The hair scan method was validated for cocaine against an accredited liquid chromatography/tandem mass spectrometry (LC/MS/MS) method. The detection limit for cocaine in hair was found to comply with the cutoff value of 0.5 ng/mg recommended by the Society of Hair Testing; that is, the DART hair scan method is amenable to forensic cases. Under DART conditions, no significant thermal degradation of cocaine occurred. The standard DART spot size of 5.1 ± 1.1 mm could be improved to 3.3 ± 1.0 mm, corresponding to approximately 10 days of hair growth, by using a high spatial resolution exit cone. By use of data-dependent product ion scans, multiple drugs of abuse could be detected in a single drug user hair scan with confirmation of identity by both exact mass and MS/HRMS fragmentation patterns. Furthermore, full-scan high-resolution data were retrospectively interrogated versus a list of more than 100 compounds and revealed additional hits and temporal profiles in good correlation with reported drug use.
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Affiliation(s)
- Wilco F Duvivier
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Marc R van Putten
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Teris A van Beek
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Michel W F Nielen
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands.,RIKILT Wageningen UR , Post Office Box 230, 6700 AE Wageningen, The Netherlands
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16
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Li X, Li Z, Wang X, Nie H, Zhang Y, Bai Y, Liu H. Monolith dip-it: a bifunctional device for improving the sensitivity of direct analysis in real time mass spectrometry. Analyst 2016; 141:4947-52. [DOI: 10.1039/c6an00839a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A bifunctional monolith dip-it was fabricated and applied for improving the sensitivity of direct analysis in real time mass spectrometry (DART-MS).
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Affiliation(s)
- Xianjiang Li
- Beijing National Laboratory for Molecular Sciences
- the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Institute of Analytical Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
| | - Ze Li
- Beijing National Laboratory for Molecular Sciences
- the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Institute of Analytical Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xin Wang
- Beijing National Laboratory for Molecular Sciences
- the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Institute of Analytical Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
| | - Honggang Nie
- Analytical Instrumentation Center
- Peking University
- Beijing
- China
| | - Yiding Zhang
- Beijing National Laboratory for Molecular Sciences
- the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Institute of Analytical Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
| | - Yu Bai
- Beijing National Laboratory for Molecular Sciences
- the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Institute of Analytical Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
| | - Huwei Liu
- Beijing National Laboratory for Molecular Sciences
- the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Institute of Analytical Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
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17
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Chernetsova ES, Morlock GE. Aspects of surface scanning by direct analysis in real time mass spectrometry employing plasma glow visualization. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:1242-1252. [PMID: 26395608 DOI: 10.1002/rcm.7221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 04/29/2015] [Accepted: 04/30/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE Visual monitoring of the Direct Analysis in Real Time (DART) gas impact region during sampling was demonstrated via its metastable plasma glow. It is known that adding neon into helium for DART leads to plasma glow, but this effect has not been used in practice and discussed in the literature so far. METHODS A single quadrupole mass spectrometer with a DART SVPA ion source was used for recording of DART mass spectra from different surfaces, using galangin and p-coumaric acid as model analytes. In specific cases, the composition of the mass spectra was clarified using an Orbitrap mass spectrometer. RESULTS Plasma glow visualization made it possible to track the metastable gas distributions during surface scanning. The influence on the composition of the mass spectra was studied for different carrier gases, i.e. pure helium versus a helium-neon mixture, and for the vacuum pumping rate. The spatial resolution was substantially improved via a DART cap with a narrowed internal diameter, but impaired by a decreased sensitivity. Comparably low signal intensities were obtained for analytes on porous layers due to analyte penetration and metastable gas scattering. CONCLUSIONS Visualization through the plasma glow enables the optimal selection of the coordinates for DART-MS analysis and thus it will support scanning and imaging MS on surfaces, including porous planar chromatographic separation materials.
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Affiliation(s)
- Elena S Chernetsova
- Institute of Nutritional Science, Chair of Food Science, Justus Liebig University Giessen, Interdisciplinary Research Center (IFZ), Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
- Institute of Food Chemistry, University of Hohenheim, Garbenstrasse 28, 70599, Stuttgart, Germany
| | - Gertrud E Morlock
- Institute of Nutritional Science, Chair of Food Science, Justus Liebig University Giessen, Interdisciplinary Research Center (IFZ), Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
- Institute of Food Chemistry, University of Hohenheim, Garbenstrasse 28, 70599, Stuttgart, Germany
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18
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Microfluidic emulsification devices: from micrometer insights to large-scale food emulsion production. Curr Opin Food Sci 2015. [DOI: 10.1016/j.cofs.2014.11.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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