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Gao H, Wan X, Yang Y, Lu J, Zhu Q, Xu L, Wang S. Leaf-Inspired Patterned Organohydrogel Surface for Ultrawide Time-Range Open Biosensing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207702. [PMID: 36775866 PMCID: PMC10104639 DOI: 10.1002/advs.202207702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Droplet arrays show great significance in biosensing and biodetection because of low sample consumption and easy operation. However, inevitable water evaporation in open environment severely limits their applications in time-consuming reactions. Herein, inspired by the unique water retention features of leaves, it is demonstrated that an open droplet array on patterned organohydrogel surface with water evaporating replenishment (POWER) for ultrawide time-range biosensing, which integrated hydrophilic hydrogel domains and hydrophobic organogel background. The hydrogel domains on the surface can supply water to the pinned droplets through capillary channels formed in the nether organohydrogel bulk. The organogel background can inhibit water evaporation like the wax coating of leaves. Such a unique bioinspired design enables ultrawide time-range biosensing in open environment from a few minutes to more than five hours involving a variety of analytes such as ions, small molecules, and macromolecules. The POWER provides a feasible and open biosensing platform for ultrawide time-range reactions.
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Affiliation(s)
- Hongxiao Gao
- Beijing Key Laboratory for Bioengineering and Sensing TechnologySchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Xizi Wan
- CAS Key Laboratory of Bio‐inspired Materials and Interfacial ScienceTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yuemeng Yang
- Beijing Key Laboratory for Bioengineering and Sensing TechnologySchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Jingwei Lu
- Beijing Key Laboratory for Bioengineering and Sensing TechnologySchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Qinglin Zhu
- Beijing Key Laboratory for Bioengineering and Sensing TechnologySchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Li‐Ping Xu
- Beijing Key Laboratory for Bioengineering and Sensing TechnologySchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Shutao Wang
- CAS Key Laboratory of Bio‐inspired Materials and Interfacial ScienceTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
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2
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Liang Y, Zhang L, Zhang Y. Chromatographic separation of peptides and proteins for characterization of proteomes. Chem Commun (Camb) 2023; 59:270-281. [PMID: 36504223 DOI: 10.1039/d2cc05568f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Characterization of proteomes aims to comprehensively characterize proteins in cells or tissues via two main strategies: (1) bottom-up strategy based on the separation and identification of enzymatic peptides; (2) top-down strategy based on the separation and identification of intact proteins. However, it is challenged by the high complexity of proteomes. Consequently, the improvements in peptide and protein separation technologies for simplifying the sample should be critical. In this feature article, separation columns for peptide and protein separation were introduced, and peptide separation technologies for bottom-up proteomic analysis as well as protein separation technologies for top-down proteomic analysis were summarized. The achievement, recent development, limitation and future trends are discussed. Besides, the outlook on challenges and future directions of chromatographic separation in the field of proteomics was also presented.
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Affiliation(s)
- Yu Liang
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Lihua Zhang
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Yukui Zhang
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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3
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Surface molecularly imprinted solid-phase extraction for the determination of vancomycin and norvancomycin in milk by liquid chromatography coupled to tandem mass spectrometry. Food Chem 2022; 369:130886. [PMID: 34455320 DOI: 10.1016/j.foodchem.2021.130886] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/04/2021] [Accepted: 08/15/2021] [Indexed: 01/03/2023]
Abstract
A simple and sensitive method based on surface molecularly imprinted solid-phase extraction (SMISPE) combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed to determine the residues of vancomycin (VCM) and norvancomycin (NVCM) in milk samples. The imprinted polymer prepared with teicoplanin as a virtual template can specifically recognize VCM and NVCM. The samples were purified with SMISPE and analyzed by LC-MS/MS in positive ionization mode. The results showed that the VCM and NVCM had a good linear correlation in the range of 0.5 μg/kg to 50 μg/kg. The recoveries of target analytes were from 83.3% to 92.1%, and the limits of quantification were both 1.0 μg/kg. The matrix effects of VCM and NVCM were -11.0% and -3.43%, respectively. The proposed method can efficiently eliminate the interference from matrix compounds and reduce baseline noise, which is useful for the monitoring of the residues of VCM and NVCM in milk samples.
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Synthesis of porous polymers by means of Michael addition reaction of multifunctional acetoacetate and poly(ethylene glycol) diacrylate. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110901] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Naga N, Ito M, Mezaki A, Tang HC, Chang TFM, Sone M, Nageh H, Nakano T. Morphology Control and Metallization of Porous Polymers Synthesized by Michael Addition Reactions of a Multi-Functional Acrylamide with a Diamine. MATERIALS (BASEL, SWITZERLAND) 2021; 14:800. [PMID: 33572043 PMCID: PMC7915525 DOI: 10.3390/ma14040800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 12/02/2022]
Abstract
Porous polymers have been synthesized by an aza-Michael addition reaction of a multi-functional acrylamide, N,N',N″,N‴-tetraacryloyltriethylenetetramine (AM4), and hexamethylene diamine (HDA) in H2O without catalyst. Reaction conditions, such as monomer concentration and reaction temperature, affected the morphology of the resulting porous structures. Connected spheres, co-continuous monolithic structures and/or isolated holes were observed on the surface of the porous polymers. These structures were formed by polymerization-induced phase separation via spinodal decomposition or highly internal phase separation. The obtained porous polymers were soft and flexible and not breakable by compression. The porous polymers adsorbed various solvents. An AM4-HDA porous polymer could be plated by Ni using an electroless plating process via catalyzation by palladium (II) acetylacetonate following reduction of Ni ions in a plating solution. The intermediate Pd-catalyzed porous polymer promoted the Suzuki-Miyaura cross coupling reaction of 4-bromoanisole and phenylboronic acid.
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Affiliation(s)
- Naofumi Naga
- Department of Applied Chemistry, College of Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan;
- Graduate School of Engineering and Science, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan;
| | - Minako Ito
- Graduate School of Engineering and Science, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan;
| | - Aya Mezaki
- Department of Applied Chemistry, College of Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan;
| | - Hao-Chun Tang
- Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan; (H.-C.T.); (T.-F.M.C.); (M.S.)
| | - Tso-Fu Mark Chang
- Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan; (H.-C.T.); (T.-F.M.C.); (M.S.)
| | - Masato Sone
- Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan; (H.-C.T.); (T.-F.M.C.); (M.S.)
| | - Hassan Nageh
- Institute for Catalysis and Graduate, School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan; (H.N.); (T.N.)
| | - Tamaki Nakano
- Institute for Catalysis and Graduate, School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan; (H.N.); (T.N.)
- Integrated Research Consortium on Chemical Sciences, Institute for Catalysis, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan
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Insuasty-Cepeda DS, Maldonado M, García-Castañeda JE, Rivera-Monroy ZJ. Obtaining an immunoaffinity monolithic material: poly(GMA- co-EDMA) functionalized with an HPV-derived peptide using a thiol-maleimide reaction. RSC Adv 2021; 11:4247-4255. [PMID: 35424340 PMCID: PMC8694329 DOI: 10.1039/d0ra09095f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 01/12/2021] [Indexed: 11/21/2022] Open
Abstract
Metabolites have great potential for the design of biomarkers, since their presence or absence provides valuable information about a biological system. In this context, polyclonal antibodies are important metabolites for diagnostic procedures, but in some pathologies, it has been found that these metabolites are present at low concentrations, so it could be difficult to detect them. In this investigation, an organic monolithic material of poly(GMA-co-EDMA) was functionalized with a peptide via Michael addition (thiol-maleimide) click chemistry. The peptide, covalently bound to the monolith, contains the SPINNTKPHEAR sequence derived from the human papilloma virus L1 protein. It was determined that the obtained monolithic support allows selectively isolating polyclonal antibodies against the SPINNTKPHEAR sequence, since they are retained on the chemical surface of the material by an immunoaffinity interaction. The monolithic material functionalization protocol reported here could be applied to incorporate any peptide with a terminal cysteine in order to recover a specific analyte. A new method was developed for isolating and pre-concentrating antibodies using monolithic materials, which could contribute to the improvement of disease detection strategies based on immunoaffinity interactions.
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Affiliation(s)
- Diego Sebastián Insuasty-Cepeda
- Departamento de Química, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 451, Office 409 Bogotá Bogotá 11321 Colombia
| | - Mauricio Maldonado
- Departamento de Química, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 451, Office 409 Bogotá Bogotá 11321 Colombia
| | | | - Zuly Jenny Rivera-Monroy
- Departamento de Química, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 451, Office 409 Bogotá Bogotá 11321 Colombia
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Ma W, Wan S, Lin C, Lin X, Xie Z. Towards online specific recognition and sensitive analysis of bisphenol A by using AuNPs@aptamer hybrid-silica affinity monolithic column with LC-MS. Talanta 2020; 219:121275. [DOI: 10.1016/j.talanta.2020.121275] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 01/14/2023]
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8
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Yang X, Wan G, Ma S, Xia H, Wang J, Liu J, Liu Y, Chen G, Bai Q. Synthesis and optimization of SiO2@SiO2 core-shell microspheres by an improved polymerization-induced colloid aggregation method for fast separation of small solutes and proteins. Talanta 2020; 207:120310. [DOI: 10.1016/j.talanta.2019.120310] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 12/20/2022]
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9
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Duan R, Sun L, Yang HY, Ma YR, Deng XY, Peng C, Zheng C, Dong LY, Wang XH. Preparation of phenyl–boronic acid polymeric monolith by initiator-free ring-opening polymerization for microextraction of sulfonamides prior to their determination by ultra-performance liquid chromatography–tandem mass spectrometry. J Chromatogr A 2020; 1609:460510. [DOI: 10.1016/j.chroma.2019.460510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/26/2019] [Accepted: 09/02/2019] [Indexed: 01/06/2023]
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10
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Naga N, Fujioka S, Inose D, Ahmed K, Nageh H, Nakano T. Synthesis and properties of porous polymers synthesized by Michael addition reactions of multi-functional acrylate, diamine, and dithiol compounds. RSC Adv 2019; 10:60-69. [PMID: 35492514 PMCID: PMC9047082 DOI: 10.1039/c9ra09684a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 12/16/2019] [Indexed: 11/21/2022] Open
Abstract
Porous polymers have been synthesized by Michael addition reactions of multi-functional acrylate and diamine or dithiol compounds. Aza-Michael addition reaction of multi-functional acrylate, trimethylolpropane propoxylate triacrylate (TPT) and hexamethylene diamine (HDA) in dimethyl sulfoxide (DMSO) successfully yielded the porous polymer. The porous structure was characterized by connected globules or co-continuous structure, and could be controlled by the reaction conditions. Mechanical properties of the porous polymers were investigated by compression test. The porous polymers with co-continuous structure showed higher Young's modulus than those with connected globules. The porous polymer absorbed some organic solvents, especially CHCl3. The porous polymer as prepared in DMSO state showed coloring induced by Christiansen filter effect depending on the reaction time and observation temperature. The thio-Michael addition reaction of TPT and 1,6-hexanedithiol (HDT) in DMSO using different base catalysts also yielded the porous polymer. The porous structure could be controlled by the catalysts amount when the reaction was initiated by a photo-base generator as the base catalyst. The present reaction systems make it possible to synthesize the porous polymers with simple process without phase separator.
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Affiliation(s)
- Naofumi Naga
- Department of Applied Chemistry, College of Engineering, Shibaura Institute of Technology 3-7-5 Toyosu, Koto-ku Tokyo 135-8548 Japan.,Graduate School of Engineering and Science, Shibaura Institute of Technology 3-7-5 Toyosu, Koto-ku Tokyo 135-8548 Japan
| | - Shun Fujioka
- Graduate School of Engineering and Science, Shibaura Institute of Technology 3-7-5 Toyosu, Koto-ku Tokyo 135-8548 Japan
| | - Daisuke Inose
- Graduate School of Engineering and Science, Shibaura Institute of Technology 3-7-5 Toyosu, Koto-ku Tokyo 135-8548 Japan
| | - Kumkum Ahmed
- SIT Research Laboratpries, Shibaura Institute of Technology 3-7-5 Toyosu, Koto-ku Tokyo 135-8548 Japan
| | - Hassan Nageh
- Institute for Catalysis and Graduate School of Chemical Sciences and Engineering, Hokkaido University N 21, W 10, Kita-ku Sapporo 001-0021 Japan
| | - Tamaki Nakano
- Institute for Catalysis and Graduate School of Chemical Sciences and Engineering, Hokkaido University N 21, W 10, Kita-ku Sapporo 001-0021 Japan.,Integrated Research Consortium on Chemical Sciences (IRCCA), Institute for Catalysis, Hokkaido University N 21, W 10, Kita-ku Sapporo 001-0021 Japan
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Ma S, Li Y, Ma C, Wang Y, Ou J, Ye M. Challenges and Advances in the Fabrication of Monolithic Bioseparation Materials and their Applications in Proteomics Research. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902023. [PMID: 31502719 DOI: 10.1002/adma.201902023] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/29/2019] [Indexed: 06/10/2023]
Abstract
High-performance liquid chromatography integrated with tandem mass spectrometry (HPLC-MS/MS) has become a powerful technique for proteomics research. Its performance heavily depends on the separation efficiency of HPLC, which in turn depends on the chromatographic material. As the "heart" of the HPLC system, the chromatographic material is required to achieve excellent column efficiency and fast analysis. Monolithic materials, fabricated as continuous supports with interconnected skeletal structure and flow-through pores, are regarded as an alternative to particle-packed columns. Such materials are featured with easy preparation, fast mass transfer, high porosity, low back pressure, and miniaturization, and are next-generation separation materials for high-throughput proteins and peptides analysis. Herein, the recent progress regarding the fabrication of various monolithic materials is reviewed. Special emphasis is placed on studies of the fabrication of monolithic capillary columns and their applications in separation of biomolecules by capillary liquid chromatography (cLC). The applications of monolithic materials in the digestion, enrichment, and separation of phosphopeptides and glycopeptides from biological samples are also considered. Finally, advances in comprehensive 2D HPLC separations using monolithic columns are also shown.
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Affiliation(s)
- Shujuan Ma
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Ya Li
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Chen Ma
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Yan Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Junjie Ou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingliang Ye
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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12
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Use of thiol functionalities for the preparation of porous monolithic structures and modulation of their surface chemistry: A review. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.06.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Liang Y, Zhang L, Zhang Y. Well-Defined Materials for High-Performance Chromatographic Separation. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2019; 12:451-473. [PMID: 30939031 DOI: 10.1146/annurev-anchem-061318-114854] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chromatographic separation has been widely applied in various fields, such as chemical engineering, precision medicine, energy, and biology. Because chromatographic separation is based on differential partitioning between the mobile phase and stationary phase and affected by band dispersion and mass transfer resistance from these two phases, the materials used as the stationary phase play a decisive role in separation performance. In this review, we discuss the design of separation materials to achieve the separation with high efficiency and high resolution and highlight the well-defined materials with uniform pore structure and unique properties. The achievements, recent developments, challenges, and future trends of such materials are discussed. Furthermore, the surface functionalization of separation ma-terials for further improvement of separation performance is reviewed. Finally, future research directions and the challenges of chromatographic separation are presented.
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Affiliation(s)
- Yu Liang
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
| | - Lihua Zhang
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
| | - Yukui Zhang
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
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Ternary thiol-ene photopolymerization for facile preparation of ionic liquid-functionalized hybrid monolithic columns based on polyhedral oligomeric silsesquioxanes. J Chromatogr A 2019; 1597:167-178. [PMID: 30929865 DOI: 10.1016/j.chroma.2019.03.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 03/02/2019] [Accepted: 03/17/2019] [Indexed: 11/23/2022]
Abstract
A simple thiol-ene photopolymerization approach was developed for the rapid preparation of ionic liquid-functionalized hybrid monolithic column based on polyhedral oligomeric silsesquioxane (POSS). "One-pot" polymerization was realized in the UV-transparent fused-silica capillary by using octanethiol, 1-allyl-3-methylimidazolium hexafluorophosphate as functional monomers and methacryl-substituted POSS as a crosslinker. The thiol-vinyl-methacrylate ternary system uniquely exhibits a mixed step-chain growth polymerization regime that combining the thiol-ene reaction and free-radical reaction mechanisms, which provides a simple route to prepare novel POSS-based functionalized hybrid monoliths. The pore property, permeability, and electroosmotic flow (EOF) of the hybrid monoliths can be tailored by proper adjustment of the feeding composition and initiation condition. Morphologic and spectroscopic characterizations of monolithic columns clearly indicate that utilization of the photo-initiated approach in thiol-vinyl polymerization can generate a more homogeneous porous structure, smaller domain size and higher column efficiency (53,800-60,300 plates/m for alkylbenzenes) than the thermally-initiated one (32,800-49,300 plates/m). Significant improvements in mechanical stability, anti-swelling property and tailorability of hybrid polymer were achieved in a simple manner, owing to the photopolymerization of rigid nanoscale POSS units and imidazolium-based ionic liquids in ternary thiol-vinyl system for the first time. The resulting hybrid monolith possessed controllable EOFs at pH values from 2 to 10, and showed a multimode separation mechanism in capillary electrochromatography, including π-π interaction, ion exchange, electrophoretic migration, electrostatic and hydrophobic interaction. Satisfactory separation ability was achieved for the analysis of different types of small molecules.
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Aydoğan C, Gökaltun A, Denizli A, El‐Rassi Z. Organic polymer‐based monolithic capillary columns and their applications in food analysisψ. J Sep Sci 2019; 42:962-979. [DOI: 10.1002/jssc.201801051] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/13/2018] [Accepted: 12/18/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Cemil Aydoğan
- Department of Food EngineeringBingöl University Bingöl Turkey
| | - Aslıhan Gökaltun
- Department of Chemical EngineeringHacettepe University Ankara Turkey
| | - Adil Denizli
- Department of ChemistryHacettepe University Ankara Turkey
| | - Ziad El‐Rassi
- Department of ChemistryOklahoma State University Stillwater OK USA
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16
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Abstract
This manuscript reviews recent developments in click chemistry in microscale systems.
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Affiliation(s)
- Tingting Hong
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
| | - Wenfang Liu
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
| | - Ming Li
- School of Environmental Science and Engineering
- Yangzhou University
- Yangzhou
- China
| | - Chuanpin Chen
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
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17
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Hyperbranched anion exchangers prepared from thiol-ene modified polymeric substrates for suppressed ion chromatography. Talanta 2018; 184:491-498. [DOI: 10.1016/j.talanta.2018.03.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 03/04/2018] [Accepted: 03/14/2018] [Indexed: 01/19/2023]
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