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Chen S, Pu K, Wang Y, Su Y, Qiu J, Wang X, Guo K, Hu J, Wei H, Wang H, Wei X, Chen Y, Lin W, Ni W, Lin Y, Chen J, Lai SKM, Ng KM. Hierarchical superstructure aerogels for in situ biofluid metabolomics. NANOSCALE 2024; 16:8607-8617. [PMID: 38602354 DOI: 10.1039/d3nr05895f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
High-throughput biofluid metabolomics analysis for screening life-threatening diseases is urgently needed. However, the high salt content of biofluid samples, which introduces severe interference, can greatly limit the analysis throughput. Here, a new 3-D interconnected hierarchical superstructure, namely a "plasmonic gold-on-silica (Au/SiO2) double-layered aerogel", integrating distinctive features of an upper plasmonic gold aerogel with a lower inert silica aerogel was successfully developed to achieve in situ separation and storage of inorganic salts in the silica aerogel, parallel enrichment of metabolites on the surface of the functionalized gold aerogel, and direct desorption/ionization of enriched metabolites by the photo-excited gold aerogel for rapid, sensitive, and comprehensive metabolomics analysis of human serum/urine samples. By integrating all these unique advantages into the hierarchical aerogel, multifunctional properties were introduced in the SALDI substrate to enable its effective utilization in clinical metabolomics for the discovery of reliable metabolic biomarkers to achieve unambiguous differentiation of early and advanced-stage lung cancer patients from healthy individuals. This study provides insight into the design and application of superstructured nanomaterials for in situ separation, storage, and photoexcitation of multi-components in complex biofluid samples for sensitive analysis.
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Affiliation(s)
- Siyu Chen
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
| | - Keyuan Pu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
| | - Yue Wang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
| | - Yang Su
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
| | - Jiamin Qiu
- Department of Biology, Shantou University, Shantou, Guangdong, 515063, China
| | - Xin Wang
- The Cancer Hospital of Shantou University Medical College, Guangdong, 515031, China.
| | - Kunbin Guo
- The Cancer Hospital of Shantou University Medical College, Guangdong, 515031, China.
| | - Jun Hu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
| | - Huiwen Wei
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
| | - Hongbiao Wang
- The Cancer Hospital of Shantou University Medical College, Guangdong, 515031, China.
| | - Xiaolong Wei
- The Cancer Hospital of Shantou University Medical College, Guangdong, 515031, China.
| | - Yuping Chen
- The Cancer Hospital of Shantou University Medical College, Guangdong, 515031, China.
| | - Wen Lin
- The Cancer Hospital of Shantou University Medical College, Guangdong, 515031, China.
| | - Wenxiu Ni
- Department of Medicinal Chemistry, Shantou University Medical College, Guangdong, 515041, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Guangdong, 515063, China
| | - Yan Lin
- The Second Affiliated Hospital of Shantou University Medical College, Guangdong, 515041, China
| | - Jiayang Chen
- Instrumental Analysis & Testing Centre, Shantou University, Guangdong, 515063, China
| | - Samuel Kin-Man Lai
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F., Building 17 W, Hong Kong Science Park, New Territories, Hong Kong, China
| | - Kwan-Ming Ng
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, China.
- Chemistry and Chemical Engineering Guangdong Laboratory, Guangdong, 515063, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F., Building 17 W, Hong Kong Science Park, New Territories, Hong Kong, China
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Lavigne A, Gilquin B, Géhin T, Jousseaume V, Veillerot M, Chevolot Y, Phaner-Goutorbe M, Yeromonahos C. Effects of Silane Monolayers on Lysophosphatidylcholine (LysoPC) Detection by Desorption Ionization on Silicon Mass Spectrometry (DIOS-MS) in Solution and Plasma. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18685-18693. [PMID: 37014887 DOI: 10.1021/acsami.3c01181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Desorption ionization on silicon mass spectrometry (DIOS-MS) enables high throughput analysis of low-molecular-weight biomolecules. However, detection of metabolite biomarkers in complex fluids such as plasma requires sample pretreatment, limiting clinical application. Here, we show that porous silicon, chemically modified using monolayers of n-propyldimethylmethoxysilane molecules, is a good candidate for fingerprinting lysophosphatidylcholine (lysoPC) in plasma, without sample pretreatment, for DIOS-MS-based diagnosis (e.g., sepsis). Results were correlated to lysoPC molecule location inside/outside the pores, determined by time-of-flight secondary ion mass spectrometry profiling, and to physicochemical properties.
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Affiliation(s)
- Antonin Lavigne
- CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INL, UMR5270, Univ Lyon, Ecole Centrale de Lyon, 69134 Ecully Cedex, France
| | - Benoît Gilquin
- CEA, LETI, Clinatec, Univ. Grenoble Alpes, 38000 Grenoble, France
| | - Thomas Géhin
- INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INL, UMR5270, Univ Lyon, CNRS, Ecole Centrale de Lyon, 69134 Ecully Cedex, France
| | | | - Marc Veillerot
- CEA, LETI, Univ Grenoble Alpes, F-38000 Grenoble, France
| | - Yann Chevolot
- INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INL, UMR5270, Univ Lyon, CNRS, Ecole Centrale de Lyon, 69134 Ecully Cedex, France
| | - Magali Phaner-Goutorbe
- CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INL, UMR5270, Univ Lyon, Ecole Centrale de Lyon, 69134 Ecully Cedex, France
| | - Christelle Yeromonahos
- CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INL, UMR5270, Univ Lyon, Ecole Centrale de Lyon, 69134 Ecully Cedex, France
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Malinick AS, Lambert AS, Stuart DD, Li B, Puente E, Cheng Q. Detection of Multiple Sclerosis Biomarkers in Serum by Ganglioside Microarrays and Surface Plasmon Resonance Imaging. ACS Sens 2020; 5:3617-3626. [PMID: 33115236 DOI: 10.1021/acssensors.0c01935] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Multiple sclerosis (MS) is an autoimmune disease that damages the myelin sheaths of nerve cells in the central nervous system. An individual suffering from MS produces increased levels of antibodies that target cell membrane components, such as phospholipids, gangliosides, and membrane proteins. Among them, anti-ganglioside antibodies are considered as important biomarkers to differentiate MS from other diseases that exhibit similar symptoms. We report here a label-free method for detecting a series of antibodies against gangliosides in serum by surface plasmon resonance imaging (SPRi) in combination with a carbohydrate microarray. The ganglioside array was fabricated with a plasmonically tuned, background-free biochip, and coated with a perfluorodecyltrichlorosilane (PFDTS) layer for antigen attachment as a self-assembled pseudo-myelin sheath. The chip was characterized with AFM and matrix-assisted laser desorption ionization mass spectrometry, demonstrating effective functionalization of the surface. SPRi measurements of patients' mimicking blood samples were conducted. A multiplexed detection of antibodies for anti-GT1b, anti-GM1, and anti-GA1 in serum was demonstrated, with a working range of 1 to 100 ng/mL, suggesting that it is well suited for clinical assessment of antibody abnormality in MS patients. Statistical analyses, including PLS-DA and PCA show the array allows comprehensive characterization of cross reactivity patterns between the MS specific antibodies and can generate a wide range of information compared to traditional end point assays. This work uses PFDTS surface functionalization and enables direct MS biomarker detection in serum, offering a powerful alternative for MS assessment and potentially improved patient care.
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Affiliation(s)
- Alexander S. Malinick
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Alexander S. Lambert
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Daniel D. Stuart
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Bochao Li
- Environmental Toxicology, University of California, Riverside, California 92521, United States
| | - Ellie Puente
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Quan Cheng
- Department of Chemistry, University of California, Riverside, California 92521, United States
- Environmental Toxicology, University of California, Riverside, California 92521, United States
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Shanta PV, Li B, Stuart DD, Cheng Q. Plasmonic Gold Templates Enhancing Single Cell Lipidomic Analysis of Microorganisms. Anal Chem 2020; 92:6213-6217. [DOI: 10.1021/acs.analchem.9b05285] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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High-Performance Sample Substrate of Gold Nanoparticle Multilayers for Surface-Assisted Laser Desorption/Ionization Mass Spectrometry. NANOMATERIALS 2019; 9:nano9081078. [PMID: 31357575 PMCID: PMC6723548 DOI: 10.3390/nano9081078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/21/2019] [Accepted: 07/23/2019] [Indexed: 01/13/2023]
Abstract
The development of a sample substrate with superior performance for desorption and ionization of analyte is the key issue to ameliorate the quality of mass spectra for measurements of small molecules in surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS). Herein, the homogeneous sample substrate of gold nanoparticle multilayers (AuNPs-ML) with hexagonal lattice was successfully prepared by self-assembly technique. With strong surface plasmon resonance absorption and superior photothermal effect, the sample substrate of AuNPs-ML exhibited high signal sensitivity and low background noise for the detection of model analyte of glucose without additional matrixes in SALDI-MS. Furthermore, compared to merchant matrixes of α-cyano-4-hydroxycinnamic acid (CHCA) and 2,5-dihydroxybenzoic acid (DHB), the sample substrate of AuNPs-ML was demonstrated to ameliorate the quality of mass spectra, including signal strength, background interference and signal/noise (S/N) ratio. The sucrose and tryptophan were also measured to show the extensive applications of AuNPs-ML sample substrate for the detections of small molecules in SALDI-MS. Most importantly, the remarkable reproducibility of glucose mass spectra with relative signal of 7.3% was obtained by the use of AuNPs-ML sample substrate for SALDI-MS. The homogeneous sample substrate of AuNPs-ML greatly improved the quality of mass spectra because of its strong absorption of laser energy, low specific heat, high heat conductivity and extraordinary homogeneity. We believe that AuNPs-ML could be a practical sample substrate for small molecule detection in SALDI-MS.
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Li N, Dou S, Feng L, Wang X, Lu N. Enriching analyte molecules on tips of superhydrophobic gold nanocones for trace detection with SALDI-MS. Talanta 2019; 205:120085. [PMID: 31450398 DOI: 10.1016/j.talanta.2019.06.085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 05/30/2019] [Accepted: 06/23/2019] [Indexed: 12/16/2022]
Abstract
The sensitivity of surface-assisted laser desorption/ionization (SALDI) mass spectrometry (MS) analysis depends on the efficiency of desorption and ionization of analyte molecules, which is usually limited by the low utilization efficiency of laser energy. Herein we demonstrate an efficient method to increase energy utilization efficiency for improving the efficiency of desorption and ionization of analyte molecules in SALDI-MS analysis. To increase the utilization efficiency of energy, a superhydrophobic gold film covered silicon nanocone array is fabricated and used as SALDI substrate. The nanocone array increases the absorption up to 99.65% at the wavelength of 355 nm, which is applied for SALDI-MS detection. The superhydrophobicity promotes the analyte molecules concentrated on the tips of nanocones where photon energy is confined, therefore, more energy can be provided for desorption and ionization of analytes. The energy efficiency is increased by using this substrate. The sensitivity of SALDI-MS analysis is greatly improved. For example, 100 amol/μL of rhodamine 6G, 100 fmol/μL of polyethyleneglycol, 100 ymol/μL of glutathione and 100 ymol/μL arginine still can be analyzed. The lake water containing malachite green was used as the real sample. The regression equation (Log I = 0.39 Log C + 6.58, R2 = 0.9811) was obtained when the concentration of analyte was in the range from 10-4 mol/L to 10-8 mol/L. Therefore, the calculated LOD and LOQ are 1.35 × 10-14 mol/L and 1.35 × 10-7 mol/L, respectively. In addition, the lower relative standard deviation (0.7%, n = 10), proper recovery (113% and 91%), and low matrix effect (-1.1% and -1.1%) all demonstrate the great potential of the designed substrate in practical analysis.
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Affiliation(s)
- Ning Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Shuzhen Dou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Lei Feng
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Xueyun Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Nan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China.
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7
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Pan XY, Chen CH, Chang YH, Wang DY, Lee YC, Liou CC, Wang YX, Hu CC, Kuo TR. Osteoporosis risk assessment using multilayered gold-nanoparticle thin film via SALDI-MS measurement. Anal Bioanal Chem 2019; 411:2793-2802. [PMID: 30931506 DOI: 10.1007/s00216-019-01759-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/05/2019] [Indexed: 01/12/2023]
Abstract
A powerful technique to detect bone biomarkers has been developed for assessment of osteoporosis at the early stage. Two-dimensional multilayered gold-nanoparticle thin film (MTF-AuNPs) was demonstrated as a promising test platform for detection of bone biomarker, hydroxyproline (HYP), measured by surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS). With strong surface plasmon resonance and excellent homogeneity, facilely prepared, highly ordered, and large-scale MTF-AuNPs revealed high sensitivity of HYP in the SALDI-MS measurement without additional matrixes, such as α-cyano-4-hydroxycinnamic acid (CHCA) and 2,5-dihydroxybenzoic acid (DHB). Furthermore, the mass spectrum of HYP with MTF-AuNPs was significantly improved in signal intensity enhancement, background noise reduction, and signal-to-noise ratio amplification. The excellent reproducibility of HYP spectra with only 9.3% relative signal variation could be attributed to MTF-AuNPs' high absorbance at a wavelength of 337 nm, low heat capacity, superior thermal conductivity, and outstanding homogeneity. The calibration curve showed high linear correlation between mass spectrum intensity and HYP concentration in the range of 1 to 100 μM, covering the whole level in healthy people and osteoporosis patients. In particular, the serum sample was directly deposited onto the MTF-AuNP sample substrate without any pretreatment and its HYP concentration was then successfully determined. We believe that the combination of SALDI-MS and MTF-AuNP sample substrates would be a potential approach for bone biomarker detection in the osteoporosis risk assessment. Graphical abstract.
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Affiliation(s)
- Xi-Yu Pan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | - Chih-Hwa Chen
- School of Biomedical Engineering, College of Biomedical Engineering, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.,Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Yi-Hsuan Chang
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan.,Department of Chemistry, Tunghai University, Taichung, 40704, Taiwan
| | - Di-Yan Wang
- Department of Chemistry, Tunghai University, Taichung, 40704, Taiwan
| | - Yi-Cheng Lee
- Department of Chemistry, Tunghai University, Taichung, 40704, Taiwan
| | - Chien-Chung Liou
- Department of Chemistry, Tunghai University, Taichung, 40704, Taiwan
| | - Yu-Xian Wang
- Department of Applied Science, National Taitung University, Taitung, 95002, Taiwan
| | - Cho-Chun Hu
- Department of Applied Science, National Taitung University, Taitung, 95002, Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan. .,International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan.
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Xu Q, Tian R, Lu C, Li H. Monodispersed Ag Nanoparticle in Layered Double Hydroxides as Matrix for Laser Desorption/Ionization Mass Spectrometry. ACS APPLIED MATERIALS & INTERFACES 2018; 10:44751-44759. [PMID: 30512921 DOI: 10.1021/acsami.8b17051] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) in the low-molecular-weight (LMW) range is a long-standing challenge because of the fragments from the matrix and the heterogeneity of the matrix-analyte crystals. In this work, a homogeneous film with the monodispersed Ag nanoparticles (Ag NPs) in the confined interlayer of layered double hydroxides (LDHs) has been achieved. The Ag NPs with advantageous optical absorption could realize the energy capture and transfer process, and LDHs with abundant hydroxyl groups are beneficial for the deprotonated reaction. Therefore, the as-prepared film exhibited interference-free deprotonated signals in negative-ion mode with high ionization efficiency. The uniform matrix-analyte spots were constructed through the homogeneous assembly process, contributing to the high reproducibility for both the liquid and gaseous samples. Good linearities were successfully realized in the range from 0.1 μM to 1.0 mM for glucose with the relative standard deviation (RSD) of 3.8%, and 0.2-2.0 mM with the average RSD of 4.5% for psoralen samples, respectively. It is believed that the proposed matrix could exhibit competitive advantages for MALDI detection in the LMW region, which may provide new insight into development for MALDI mass detection.
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Affiliation(s)
- Qi Xu
- State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Rui Tian
- State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Haifang Li
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation , Tsinghua University , Beijing 100084 , China
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Meng X, Hu J, Chao Z, Liu Y, Ju H, Cheng Q. Thermoresponsive Arrays Patterned via Photoclick Chemistry: Smart MALDI Plate for Protein Digest Enrichment, Desalting, and Direct MS Analysis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1324-1333. [PMID: 29239171 DOI: 10.1021/acsami.7b13640] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sample desalting and concentration are crucial steps before matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS) analysis. Current sample pretreatment approaches require tedious fabrication and operation procedures, which are unamenable to high-throughput analysis and also result in sample loss. Here, we report the development of a smart MALDI substrate for on-plate desalting, enrichment, and direct MS analysis of protein digests based on thermoresponsive, hydrophilic/hydrophobic transition of surface-grafted poly(N-isopropylacrylamide) (PNIPAM) microarrays. Superhydrophilic 1-thioglycerol microwells are first constructed on alkyne-silane-functionalized rough indium tin oxide substrates based on two sequential thiol-yne photoclick reactions, whereas the surrounding regions are modified with hydrophobic 1H,1H,2H,2H-perfluorodecanethiol. Surface-initiated atom-transfer radical polymerization is then triggered in microwells to form PNIPAM arrays, which facilitate sample loading and enrichment of protein digests by concentrating large-volume samples into small dots and achieving on-plate desalting through PNIPAM configuration change at elevated temperature. The smart MALDI plate shows high performance for mass spectrometric analysis of cytochrome c and neurotensin in the presence of 1 M urea and 100 mM NaHCO3, as well as improved detection sensitivity and high sequence coverage for α-casein and cytochrome c digests in femtomole range. The work presents a versatile sample pretreatment platform with great potential for proteomic research.
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Affiliation(s)
- Xiao Meng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210023, P. R. China
| | - Junjie Hu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210023, P. R. China
| | - Zhicong Chao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210023, P. R. China
| | - Ying Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210023, P. R. China
- Department of Chemistry, University of California , Riverside, California 92521, United States
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210023, P. R. China
| | - Quan Cheng
- Department of Chemistry, University of California , Riverside, California 92521, United States
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Wang S, Xiao C, Jiang L, Ling L, Chen X, Guo X. A high sensitive and contaminant tolerant matrix for facile detection of membrane proteins by matrix-assisted laser desorption/ionization mass spectrometry. Anal Chim Acta 2017; 999:114-122. [PMID: 29254561 DOI: 10.1016/j.aca.2017.11.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 11/05/2017] [Accepted: 11/09/2017] [Indexed: 02/07/2023]
Abstract
Despite the significance of membrane proteins (MPs) in biological system is indisputable, their specific natures make them notoriously difficult to be analyzed. Particularly, the widely used Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) prefers analyses of hydrophilic cytosolic proteins and has a limited ionization efficiency towards hydrophobic MPs. Herein, a hydrophobic compound (E)-propyl α-Cyano-4-Hydroxyl Cinnamylate (CHCA-C3), a propyl-esterified derivative of α-cyano-4-hydroxycinnamic acid (CHCA), was applied as a contaminant tolerant matrix for high sensitivity MALDI-MS analyses of MPs. With CHCA-C3, the detection limits of hydrophobic peptides were 10- to 100-fold better than those using CHCA. Furthermore, high quality of spectra could be achieved in the presence of high concentration of chaotropes, salts and detergents, as well as human urinary and serum environment. Also, CHCA-C3 could generate uniform sample distribution even in the presence of contaminants. This high contaminant-resistance was revealed to be ascribed to the enhanced hydrophobicity of CHCA-C3 with a lower affinity towards hydrophilic contaminants. The application of CHCA-C3 is further demonstrated by the analysis of trypsin/CNBr digests of bacteriorhodopsin containing seven transmembrane domains (TMDs), which dramatically increased numbers of identified hydrophobic peptides in TMDs and sequence coverage (∼100%). Besides, a combined method by using CHCA-C3 with fluoride solvent and a patterned paraffin plate was established for analysis of integral MPs. We achieved a low detection limit of 10 fmol for integral bacteriorhodopsin, which could not be detected using traditional matrices such as 3,5-dimethoxy-4-hydroxycinamic acid, 2,5-dihydroxyacetophenone even at sample concentration of 10 pmol.
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Affiliation(s)
- Sheng Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Liyan Jiang
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University, Changchun 130012, China
| | - Ling Ling
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xinhua Guo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China; Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University, Changchun 130012, China.
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Noh JY, Kim JI, Chang YW, Park JM, Song HW, Kang MJ, Pyun JC. Gold nanoislands chip for laser desorption/ionization (LDI) mass spectrometry. BIOCHIP JOURNAL 2017. [DOI: 10.1007/s13206-017-1310-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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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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Zhou Y, Peng C, Harris KD, Mandal R, Harrison DJ. Salt Segregation and Sample Cleanup on Perfluoro-Coated Nanostructured Surfaces for Laser Desorption Ionization Mass Spectrometry of Biofluid Samples. Anal Chem 2017; 89:3362-3369. [DOI: 10.1021/acs.analchem.6b03934] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ya Zhou
- Department
of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - Chen Peng
- Department
of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - Kenneth D. Harris
- National Institute for Nanotechnology, Edmonton, Alberta, Canada, T6G 2M9
| | - Rupasri Mandal
- Department
of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - D. Jed Harrison
- Department
of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
- National Institute for Nanotechnology, Edmonton, Alberta, Canada, T6G 2M9
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14
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Wang S, Xiao C, Li Y, Ling L, Chen X, Guo X. A Surface Pattern on MALDI Steel Plate for One-Step In-Situ Self-Desalting and Enrichment of Peptides/Proteins. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:428-433. [PMID: 28058591 DOI: 10.1007/s13361-016-1584-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/30/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
We report a novel strategy to achieve simultaneous one-step in-situ self-desalting and enrichment (OISE) of peptides/proteins on a facilely fabricated patterned MALDI steel plate with a circular paraffin-steel-polystyrene structure. The OISE plate could efficiently segregate salts from both analytes and matrices while retaining both analyte and matrix concentrate, and facilitating them to form homogeneous co-crystals on the centrally located polystyrene pattern. With the OISE plate, high quality and reproducible spectra could be obtained for low abundance peptides even in the presence of high salt concentrations (200 mM NH4HCO3, 1 M NaCl, or 400 mM urea). Using this strategy, a significant sensitivity enhancement was gained over traditional MALDI plate. The practical utility of this method was further demonstrated by the successful profiling of BSA digests and human serum. Graphical Abstract ᅟ.
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Affiliation(s)
- Sheng Wang
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
| | - Ying Li
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Ling Ling
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xinhua Guo
- College of Chemistry, Jilin University, Changchun, 130012, China.
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15
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Liao HY, Tsai FJ, Lai CC, Tseng MC, Hsu CY, Chen CJ. Rapid fabrication of functionalized plates for peptides, glycopeptides and protein purification and mass spectrometry analysis. Analyst 2017; 141:2183-90. [PMID: 26948663 DOI: 10.1039/c6an00113k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A rapid and simple approach for fabricating a disposable functionalized membrane on matrix-assisted laser desorption ionization (MALDI) targets, glass, or plastic substrates, without using complex mechanical protocols or chemical reactions, was developed for sample enrichment and mass spectrometry analysis. By coating functionalized-silica particles on a polydimethylsiloxane (PDMS)-coated plate, these particles can form a monolayer of materials on the PDMS membrane for sample handling without peeling off. An octadecyl(C18)-functionalized plate was fabricated by coating porous C18-silica particles on a PDMS-coated plate. The C18 particle-coated PDMS plate (CP plate) has better sensitivity than C18 tips and magnetic nanoparticles, along with a higher sample recovery (64.3 ± 4.9%) compared to the C18 tip method, when analyzing trace amounts of 5 fm BSA digest samples. The CP plate shows significantly higher urea/SDS removal efficiency on the cell lysate proteome compared to C18 tips. The capacity of the C18 spot (∼2.8 mm in diameter) on the CP plate was ∼10 μg of BSA digests. A hydrophilic particle-coated PDMS plate was also fabricated and successfully used for glycopeptide enrichment and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) analysis.
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Affiliation(s)
- Hsin-Yi Liao
- Proteomics Core Laboratory, Department of Medical Research, China Medical University Hospital, Taichung 40402, Taiwan.
| | - Fuu-Jen Tsai
- Department of Medical Genetics and Medical Research, China Medical University Hospital, Taichung 40402, Taiwan
| | - Chien-Chen Lai
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Mei-Chun Tseng
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Chung Y Hsu
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan
| | - Chao-Jung Chen
- Proteomics Core Laboratory, Department of Medical Research, China Medical University Hospital, Taichung 40402, Taiwan. and Graduate Institute of Integrated Medicine, China Medical University, Taichung 40402, Taiwan
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16
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Ling L, Xiao C, Jiang L, Wang S, Li Y, Chen X, Guo X. A cool and high salt-tolerant ionic liquid matrix for preferential ionization of phosphopeptides by negative ion MALDI-MS. NEW J CHEM 2017. [DOI: 10.1039/c7nj01706e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An optimized ILM G3THAP/PA matrix significantly improved the detection of phosphopeptides by negative ion MALDI-MS compared with using 3-AQ/CHCA/ADP and DHB/PA matrices.
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Affiliation(s)
- Ling Ling
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
- Changchun 130021
- P. R. China
| | - Liyan Jiang
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University
- Changchun 130012
- P. R. China
| | - Sheng Wang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Ying Li
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
- Changchun 130021
- P. R. China
| | - Xinhua Guo
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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17
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Silina YE, Herbeck-Engel P, Koch M. A study of enhanced ion formation from metal-semiconductor complexes in atmospheric pressure laser desorption/ionization mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2017; 52:43-53. [PMID: 27859931 DOI: 10.1002/jms.3898] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/10/2016] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
The study of the key parameters impacted surface-assisted laser desorption/ionization-mass spectrometry is of broad interest. In previous studies, it has been shown that surface-assisted laser desorption/ionization-mass spectrometry is a complex process depending on multiple factors. In the presented study, we showed that neither porosity, light absorbance nor surface hydrophobicity alone influence the enhancement phenomena observed from the hybrid metal-semiconductor complexes versus individual targets, but small changes in the analyte attaching to the target significantly affect laser desorption ionization-efficiency. By means of Raman spectroscopy and scanning electron microscopy, it was revealed that the formation of an amorphous analyte layer after drying on a solid substrate was essential for the enhanced laser desorption ionization-signal observed from the hybrid metal-semiconductor targets, and the crystallization properties of the analyte appeared as a function of the substrate. Obtained results were used for the screening of regular and lactose-free milk samples through the hybrid metal-semiconductor target. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yuliya E Silina
- INM-Leibniz Institute for New Materials, Campus D2 2, Saarbrücken, 66123, Germany
| | - Petra Herbeck-Engel
- INM-Leibniz Institute for New Materials, Campus D2 2, Saarbrücken, 66123, Germany
| | - Marcus Koch
- INM-Leibniz Institute for New Materials, Campus D2 2, Saarbrücken, 66123, Germany
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18
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Wang S, Xiao Z, Xiao C, Wang H, Wang B, Li Y, Chen X, Guo X. (E)-Propyl α-Cyano-4-Hydroxyl Cinnamylate: A High Sensitive and Salt Tolerant Matrix for Intact Protein Profiling by MALDI Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:709-718. [PMID: 26729454 DOI: 10.1007/s13361-015-1325-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 12/02/2015] [Accepted: 12/05/2015] [Indexed: 06/05/2023]
Abstract
Low-abundance samples and salt interference are always of great challenges for the practical protein profiling by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Herein, a series of carboxyl-esterified derivatives of α-cyano-4-hydroxycinnamic acid (CHCA) were synthesized and evaluated as matrices for MALDI-MS analysis of protein. Among them, (E)-propyl α-cyano-4-hydroxyl cinnamylate (CHCA-C3) was found to exhibit excellent assay performance for intact proteins by improving the detection sensitivity 10 folds compared with the traditional matrices [i.e., super2,5-dihydroxybenzoic acid (superDHB), sinapic acid (SA), and CHCA]. In addition, CHCA-C3 was shown to have high tolerance to salts, the ion signal of myoglobin was readily detected even in the presence of urea (8 M), NH4HCO3 (2 M), and KH2PO4 (500 mM), meanwhile sample washability was robust. These achievements were mainly attributed to improved ablation ability and increased hydrophobicity or affinity of CHCA-C3 to proteins in comparison with hydrophilic matrixes, leading to more efficient ionization of analyte. Furthermore, direct analysis of proteins from crude egg white demonstrated that CHCA-C3 was a highly efficient matrix for the analysis of low-abundance proteins in complex biological samples. These outstanding performances indicate the tremendous potential use of CHCA-C3 in protein profiling by MALDI-MS. Graphical Abstract ᅟ.
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Affiliation(s)
- Sheng Wang
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Zhaohui Xiao
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
| | - Huixin Wang
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Bing Wang
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Ying Li
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xinhua Guo
- College of Chemistry, Jilin University, Changchun, 130012, China.
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19
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Chingin K, Cai Y, Liang J, Chen H. Simultaneous Preconcentration and Desalting of Organic Solutes in Aqueous Solutions by Bubble Bursting. Anal Chem 2016; 88:5033-6. [DOI: 10.1021/acs.analchem.6b00582] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Konstantin Chingin
- Jiangxi
Key Laboratory for
Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, P.R. China
| | - Yunfeng Cai
- Jiangxi
Key Laboratory for
Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, P.R. China
| | - Juchao Liang
- Jiangxi
Key Laboratory for
Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, P.R. China
| | - Huanwen Chen
- Jiangxi
Key Laboratory for
Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, P.R. China
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20
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Yonezawa T, Asano T, Matsubara M. Surface-Assisted Laser Desorption Ionization Mass Spectrometry (SALDI-MS) of Low-Molecular-Weight Medicines and Toxic Materials Using Commercial TiO2 Nanoparticles. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20150337] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tetsu Yonezawa
- Division of Material Science and Engineering, Faculty of Engineering, Hokkaido University
| | - Takashi Asano
- Division of Material Science and Engineering, Faculty of Engineering, Hokkaido University
- Criminal Investigation Laboratory, Metropolitan Police Department
| | - Masaki Matsubara
- Division of Material Science and Engineering, Faculty of Engineering, Hokkaido University
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21
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Hinman SS, Chen CY, Duan J, Cheng Q. Calcinated gold nanoparticle arrays for on-chip, multiplexed and matrix-free mass spectrometric analysis of peptides and small molecules. NANOSCALE 2016; 8:1665-75. [PMID: 26694584 PMCID: PMC5412507 DOI: 10.1039/c5nr06635b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A patterned gold nanoparticle microarray, functionalized with a nanoscale silicate coating, has been developed for on-chip, high-throughput mass spectrometric analyses of biomolecules with minimal sample preparation and reagent costs. Fabrication was realized by the combination of layer-by-layer functionalization of the nanoparticles with suitable polyelectrolytes, followed by fluidic patterning of the glass microarray support and calcination for permanent fixation of the nano-coating. Performance of the microarray was evaluated for surface-assisted laser-desorption/ionization mass spectrometry (SALDI-MS), where the nano-silicate coating was found to enhance SALDI efficiency, resulting in comparable performance to some common organic matrices for small and medium sized molecules. Performance contributing factors of this material have been discussed; heat confinement and interband transition/plasmonic resonance may play important roles. Taking the accessibility of fabrication, performance, and reusability of this substrate together, the material developed here provides a new tool for multiplexed and chip-based mass spectrometric analysis.
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Affiliation(s)
- Samuel S Hinman
- Environmental Toxicology, University of California, Riverside, California 92521, USA.
| | - Chih-Yuan Chen
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Jicheng Duan
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Quan Cheng
- Environmental Toxicology, University of California, Riverside, California 92521, USA. and Department of Chemistry, University of California, Riverside, California 92521, USA
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22
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Gong X, Xiong X, Wang S, Li Y, Zhang S, Fang X, Zhang X. Desalting by crystallization: detection of attomole biomolecules in picoliter buffers by mass spectrometry. Anal Chem 2015; 87:9745-51. [PMID: 26312607 DOI: 10.1021/acs.analchem.5b01877] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Sensitive detection of biomolecules in small-volume samples by mass spectrometry is, in many cases, challenging because of the use of buffers to maintain the biological activities of proteins and cells. Here, we report a highly effective desalting method for picoliter samples. It was based on the spontaneous separation of biomolecules from salts during crystallization of the salts. After desalting, the biomolecules were deposited in the tip of the quartz pipet because of the evaporation of the solvent. Subsequent detection of the separated biomolecules was achieved using solvent assisted electric field induced desorption/ionization (SAEFIDI) coupled with mass spectrometry. It allowed for direct desorption/ionization of the biomolecules in situ from the tip of the pipet. The organic component in the assistant solvent inhibited the desorption/ionization of salts, thus assured successful detection of biomolecules. Proteins and peptides down to 50 amol were successfully detected using our method even if there were 3 × 10(5) folds more amount of salts in the sample. The concentration and ion species of the salts had little influence on the detection results.
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Affiliation(s)
- Xiaoyun Gong
- Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University , Beijing 100084, China.,National Institute of Metrology , Beijing 100013, China
| | | | - Song Wang
- Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Yanyan Li
- Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Sichun Zhang
- Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Xiang Fang
- National Institute of Metrology , Beijing 100013, China
| | - Xinrong Zhang
- Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University , Beijing 100084, China
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23
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Recent applications of microchip electrophoresis to biomedical analysis. J Pharm Biomed Anal 2015; 113:72-96. [DOI: 10.1016/j.jpba.2015.03.002] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 02/28/2015] [Accepted: 03/03/2015] [Indexed: 11/22/2022]
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24
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Najam-ul-Haq M, Jabeen F, Shafiq F, Sajid S, Saba A. New cellulose–silica composite IMAC/C18 for the selective enrichment of phosphorylated molecules and the improved recovery of hydrophilic species. RSC Adv 2015. [DOI: 10.1039/c4ra10254a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new methodology is reported for the synthesis of a hydrophilic cellulose–silica composite, followed by derivatization for the selective enrichment of phosphopeptides and use as a desalting material prior to mass spectrometric analysis.
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Affiliation(s)
- Muhammad Najam-ul-Haq
- Division of Analytical Chemistry
- Institute of Chemical Sciences
- Bahauddin Zakariya University
- Multan 60800
- Pakistan
| | - Fahmida Jabeen
- Division of Analytical Chemistry
- Institute of Chemical Sciences
- Bahauddin Zakariya University
- Multan 60800
- Pakistan
| | - Faiza Shafiq
- Division of Analytical Chemistry
- Institute of Chemical Sciences
- Bahauddin Zakariya University
- Multan 60800
- Pakistan
| | - Salman Sajid
- Division of Analytical Chemistry
- Institute of Chemical Sciences
- Bahauddin Zakariya University
- Multan 60800
- Pakistan
| | - Ambreen Saba
- Division of Analytical Chemistry
- Institute of Chemical Sciences
- Bahauddin Zakariya University
- Multan 60800
- Pakistan
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25
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Xu L, Zhu W, Sun R, Ding Y. A Ti4+-immobilized phosphate polymer-patterned silicon substrate for on-plate selective enrichment and self-desalting of phosphopeptides. Analyst 2015; 140:3216-24. [DOI: 10.1039/c5an00102a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A circular hydrophobic–hydrophilic-Ti4+ immobilized phosphate polymer is patterned as the sample support for selective enrichment, wash-free self-desalting and mass spectroscopy (MS) analysis of phosphopeptides.
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Affiliation(s)
- Lei Xu
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Wei Zhu
- Department of Oncology
- First Affiliated Hospital of Nanjing Medical University
- Nanjing 210029
- PR China
| | - Rui Sun
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Yin Ding
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
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26
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Zeng Z, Wang Y, Guo X, Wang L, Lu N. On-plate self-desalting and matrix-free LDI MS analysis of peptides with a surface patterned sample support. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:895-898. [PMID: 24658805 DOI: 10.1007/s13361-014-0845-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 01/02/2014] [Accepted: 01/20/2014] [Indexed: 06/03/2023]
Abstract
A hydrophobic-hydrophilic-hydrophobic pattern has been produced on the surface of a silicon substrate for selective enrichment, self-desalting, and matrix-free analysis of peptides in a single step. Upon sample application, the sample solution is first confined in a small area by a hydrophobic F-SAM outer area, after which salt contaminants and peptides are selectively enriched in the hydrophilic and hydrophobic areas, respectively. Simultaneously, matrix background noise is significantly reduced or eliminated because of immobilization of matrix molecules. As a result, the detection sensitivity is enhanced 20-fold compared with that obtained using the usual MALDI plate, and interference-free detection is achieved in the low m/z range. In addition, peptide ions can be identified unambiguously in the presence of NH₄HCO₃ (100 mM), urea (1 M), and NaCl (1 M). When the device was applied to the analysis of BSA digests, the peptide recovery and protein identification confidence were greatly improved.
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27
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Etxebarria J, Calvo J, Reichardt NC. Nanostructured weathering steel for matrix-free laser desorption ionisation mass spectrometry and imaging of metabolites, drugs and complex glycans. Analyst 2014; 139:2873-83. [DOI: 10.1039/c4an00216d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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He X, Chen Q, Zhang Y, Lin JM. Recent advances in microchip-mass spectrometry for biological analysis. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.09.013] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Zeng Z, Wang Y, Guo X, Wang L, Lu N. On-plate glycoproteins/glycopeptides selective enrichment and purification based on surface pattern for direct MALDI MS analysis. Analyst 2013; 138:3032-7. [PMID: 23577342 DOI: 10.1039/c3an00107e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, a novel method has been proposed to achieve selective enrichment and purification of glycoproteins/glycopeptides on a surface patterned sample support, which consists of a hydrophobic outer layer (F-SAM) and an internal boronic acid-modified gold microspot (900 μm). Upon deposition, the sample solution is firstly concentrated in a small area by repulsion of the hydrophobic outer layer, and then the glycoproteins/glycopeptides are selectively captured through boronic acid covalently binding in the inner layer. However, the non-glycosylated proteins/peptides or high concentration salts are removed after rinsing with alkaline solution. As a result, the detection sensitivity is improved by an order of magnitude greater than when using a stainless steel MALDI plate. With surface patterned sample support, the glycoproteins/glycopeptides can be detected even under interference from the excessive existing non-glycosylated proteins/peptides (10 times more than glycoproteins/glycopeptides). Simultaneously, high-quality mass spectra can be obtained even in the presence of urea (1 M), NaCl (1 M), or NH4HCO3 (200 mM). Therefore, this novel technique may be applied to high-throughput analysis of low-abundance glycoproteins/glycopeptides in complicated proteome research.
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Affiliation(s)
- Zhoufang Zeng
- College of Chemistry, Jilin University, Changchun 130012, China
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30
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Kuo TR, Wang DY, Chiu YC, Yeh YC, Chen WT, Chen CH, Chen CW, Chang HC, Hu CC, Chen CC. Layer-by-layer thin film of reduced graphene oxide and gold nanoparticles as an effective sample plate in laser-induced desorption/ionization mass spectrometry. Anal Chim Acta 2013; 809:97-103. [PMID: 24418138 DOI: 10.1016/j.aca.2013.11.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 11/15/2013] [Accepted: 11/24/2013] [Indexed: 11/30/2022]
Abstract
This work demonstrated a simple platform for rapid and effective surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF MS) measurements based on the layer structure of reduced graphene oxide (rGO) and gold nanoparticles. A multi-layer thin film was fabricated by alternate layer-by-layer depositions of rGO and gold nanoparticles (LBL rGO/AuNP). The flat and clean two-dimensional film was served as the sample plate and also functioned as the matrix in SALDI-TOF MS. By simply one-step deposition of analytes onto the LBL rGO/AuNP sample plate, the MS measurements of various homogeneous samples were ready to execute. The optimization of MS signal was reached by the variation of the layer numbers of rGO and gold nanoparticles. Also, the small molecules including amino acids, carbohydrates and peptides were successfully analyzed in SALDI-TOF MS using the LBL rGO/AuNP sample plate. The results showed that the signal intensity, S N(-1) ratio and reproducibility of SALDI-TOF spectra have been significantly improved in comparison to the uses of gold nanoparticles or α-cyano-4-hydroxy-cinnamic acid (CHCA) as the assisted matrixes. Taking the advantages of the unique properties of rGO and gold nanoparticles, the ready-to-use MS sample plate, which could absorb and dissipate laser energy to analytes quite efficiently and homogeneously, has shown great commercial potentials for MS applications.
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Affiliation(s)
- Tsung-Rong Kuo
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan; Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Di-Yan Wang
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan; Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan; Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Chen Chiu
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Yun-Chieh Yeh
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Ting Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Ching-Hui Chen
- Department of Applied Science, National Taitung University, Taitung 95002, Taiwan
| | - Chun-Wei Chen
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Huan-Cheng Chang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Cho-Chun Hu
- Department of Applied Science, National Taitung University, Taitung 95002, Taiwan.
| | - Chia-Chun Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan; Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
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31
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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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32
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Zhang Y, Kuang M, Zhang L, Yang P, Lu H. An accessible protocol for solid-phase extraction of N-linked glycopeptides through reductive amination by amine-functionalized magnetic nanoparticles. Anal Chem 2013; 85:5535-41. [PMID: 23659689 DOI: 10.1021/ac400733y] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In light of the significance of glycosylation for wealthy biological events, it is important to prefractionate glycoproteins/glycopeptides from complex biological samples. Herein, we reported a novel protocol of solid-phase extraction of glycopeptides through a reductive amination reaction by employing the easily accessible 3-aminopropyltriethoxysilane (APTES)-functionalized magnetic nanoparticles. The amino groups from APTES, which were assembled onto the surface of the nanoparticles through a one-step silanization reaction, could conjugate with the aldehydes from oxidized glycopeptides and, therefore, completed the extraction. To the best of our knowledge, this is the first example of applying the reductive amination reaction into the isolation of glycopeptides. Due to the elimination of the desalting step, the detection limit of glycopeptides was improved by 2 orders of magnitude, compared to the traditional hydrazide chemistry-based solid phase extraction, while the extraction time was shortened to 4 h, suggesting the high sensitivity, specificity, and efficiency for the extraction of N-linked glycopeptides by this method. In the meantime, high selectivity toward glycoproteins was also observed in the separation of Ribonuclease B from the mixtures contaminated with bovine serum albumin. What's more, this technique required significantly less sample volume, as demonstrated in the successful mapping of glycosylation of human colorectal cancer serum with the sample volume as little as 5 μL. Because of all these attractive features, we believe that the innovative protocol proposed here will shed new light on the research of glycosylation profiling.
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Affiliation(s)
- Ying Zhang
- Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, PR China
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33
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Li J, Hu XK, Lipson RH. On-chip Enrichment and Analysis of Peptide Subsets Using a Maleimide-functionalized Fluorous Affinity Biochip and Nanostructure Initiator Mass Spectrometry. Anal Chem 2013; 85:5499-505. [DOI: 10.1021/ac4006233] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Li
- Department
of Chemistry, University of Victoria, P.O.
Box 3065, Stn CSC, Victoria, British Columbia V8W 3V6, Canada
| | - X. K. Hu
- Department
of Chemistry, University of Victoria, P.O.
Box 3065, Stn CSC, Victoria, British Columbia V8W 3V6, Canada
| | - R. H. Lipson
- Department
of Chemistry, University of Victoria, P.O.
Box 3065, Stn CSC, Victoria, British Columbia V8W 3V6, Canada
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34
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Zeng Z, Wang Y, Shi S, Wang L, Guo X, Lu N. On-plate selective enrichment and self-desalting of peptides/proteins for direct MALDI MS analysis. Anal Chem 2012; 84:2118-23. [PMID: 22324309 DOI: 10.1021/ac203378q] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In this paper, a new technique has been proposed to achieve simultaneous peptides/proteins enrichment and wash-free self-desalting on a novel sample support with a circle hydrophobic-hydrophilic-hydrophobic pattern. Upon deposition, the sample solution is first concentrated in a small area by repulsion of the hydrophobic outer layer, and then, the peptides/proteins and coexisting salt contaminants are selectively captured in different regions of the pattern through strong hydrophobic and hydrophilic attractions, respectively. As a result, the detection sensitivity is improved by 2 orders of magnitude better than the use of the traditional MALDI plate, and high-quality mass spectra are obtained even in the presence of NaCl (1 M), NH(4)HCO(3) (100 mM), or urea (1 M). The practical application of this method is further demonstrated by the successful analysis of myoglobin digests with high sequence coverage, demonstrating the great potential in proteomic research.
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Affiliation(s)
- Zhoufang Zeng
- College of Chemistry, Jilin University, Changchun 130012, China
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35
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Pittman JJ, Manard BT, Kowalski PJ, Marcus RK. Capillary-channeled polymer (C-CP) films as processing platforms for protein analysis by matrix-assisted laser/desorption ionization mass spectrometry (MALDI-MS). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:102-107. [PMID: 22012690 DOI: 10.1007/s13361-011-0269-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/26/2011] [Accepted: 09/27/2011] [Indexed: 05/31/2023]
Abstract
Polypropylene (PP) capillary-channeled polymer (C-CP) films have parallel, μm-sized channels that induce solution wicking via capillary action. Efficient mass transport from the solution phase to the channel surface leads to adsorption of hydrophobic protein solutes. The basic premise by which C-CP films can be used as media to manipulate analyte solutions (e.g., proteins in buffer), for the purpose of desalting or chromatographic separation prior to MALDI-MS analysis is presented here. Cytochrome c and myoglobin prepared in a Tris-HCl buffer, and ribonuclease A, lysozyme, and transferrin prepared in phosphate buffered saline (PBS), are used as the test solutions to demonstrate the desalting concept. Protein analysis is performed after deposition on a C-CP film with and without a water washing step, followed by spray deposition of a typical sinapinic acid matrix. Extracted MALDI mass spectra exhibit much improved signal-to-noise characteristics after water washing. A mixture of cytochrome c and myoglobin (2 μL of 2.5 μM each in Tris-HCl buffer) was applied, washed with water and spatially separated via simple capillary action (wicking) using a reversed-phase solvent composition of 0.1% trifluoroacetic acid (TFA) in 50:50 acetonitrile (ACN):H(2)O. Subsequent application of sinapinic acid followed by imaging of the film using MALDI-MS reveals that as the protein solution is wicked down the film, separation occurs.
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Affiliation(s)
- Jennifer J Pittman
- Department of Chemistry, Biosystems Research Complex, Clemson University, Clemson, SC 29634, USA
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36
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Kuo TR, Chen JS, Chiu YC, Tsai CY, Hu CC, Chen CC. Quantitative analysis of multiple urinary biomarkers of carcinoid tumors through gold-nanoparticle-assisted laser desorption/ionization time-of-flight mass spectrometry. Anal Chim Acta 2011; 699:81-6. [DOI: 10.1016/j.aca.2011.05.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2011] [Revised: 05/06/2011] [Accepted: 05/08/2011] [Indexed: 10/18/2022]
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37
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Gold nanomaterials as a new tool for bioanalytical applications of laser desorption ionization mass spectrometry. Anal Bioanal Chem 2011; 402:601-23. [DOI: 10.1007/s00216-011-5120-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 05/13/2011] [Accepted: 05/17/2011] [Indexed: 10/18/2022]
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