Solvothermal-assisted in situ rapid growth of octadecylamine functionalized polydopamine-based permanent coating as stationary phase for open-tubular capillary electrochromatography

Yi, Gaoyi; He, Jingxia; Ji, Baian; Gao, Die; Zhang, Kailian; Wang, Lujun; Zeng, Jing; Xia, Zhining; Fu, Qifeng

doi:10.1016/j.chroma.2020.461436

Cited by 10 publications

(10 citation statements)

References 32 publications

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“…× 375 μm o.d.) were pretreated according to our previous literature study . The obtained capillary was injected with an ethanol solution of 3-aminopropyltriethoxysilane (APTES) (10%, v/v) for 60 min.…”

Section: Methodsmentioning

confidence: 99%

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High-Efficiency and Versatile Approach To Fabricate Diverse Metal–Organic Framework Coatings on a Support Surface as Stationary Phases for Electrochromatographic Separation

Gui

et al. 2021

ACS Appl. Mater. Interfaces

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A large number of metal–organic frameworks (MOFs) have exhibited increasingly wide utilization in the field of chromatographic separation owing to their intrinsic fascinating properties. However, the previous studies on supported MOF coating-based chromatographic separation focused only on the synthesis and chromatographic performance of a certain kind of supported MOF coatings as stationary phases using the multiple-step, complicated, and time-consuming modification methods, which severely impeded the widespread application of MOFs in separation science. Herein, a high-efficiency and versatile methodology toward diverse supported MOF coating-based stationary phases to achieve high-efficiency chromatographic separation was first reported based on the immobilized cysteine (Cys)-triggered in situ growth (ICISG) strategy. As a proof-of-concept demonstration, four types of MOF crystals consisting of different ligands and metal ions (Zn2+, Cu2+, Fe3+, and Zr4+) were conveniently and firmly grown on a Cys-modified capillary using the ICISG strategy and employed as the functional stationary phase for electrochromatographic separation. A broad variety of neutral, acidic, and basic compounds were all separated in a highly efficient manner on the developed four MOF-coated columns. The maximum theoretical plate number for Cys-MIL-100(Fe)@capillary was close to 1.0 × 105 plates/m, and the intraday, interday, and column-to-column repeatabilities of retention times for the four MOF-modified columns were all less than 5.25%. More interestingly, the diversified separation performance of the developed MOF-coated columns indicated that the preparation strategy and the skeletal structure of the MOF coating-based stationary phases have a significant influence on the electrochromatographic separation performance and column capacity. Benefiting from the strong universality and high applicability of the developed ICISG strategy, the present study provides an effective route to facilitate the design and fabrication of novel functional MOF-based chromatographic stationary phases.

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Section: Methodsmentioning

confidence: 99%

“…were pretreated according to our previous literature study. 37 The obtained capillary was injected with an ethanol solution of 3-aminopropyltriethoxysilane (APTES) (10%, v/v) for 60 min. Subsequently, the prepared capillary was rinsed with absolute ethanol for 5 min to remove the residue and dried with nitrogen.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

High-Efficiency and Versatile Approach To Fabricate Diverse Metal–Organic Framework Coatings on a Support Surface as Stationary Phases for Electrochromatographic Separation

Gui

et al. 2021

ACS Appl. Mater. Interfaces

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“…OT-CEC also works well in achiral drug separation. Octadecylamine (ODA)-coated columns show good separation performance, and permanent OT columns [ 46 ] can separate acidic, neutral, and basic drugs. Further combinations with PDA have expanded the range of applications for drug separation [ 47 ].…”

Section: Applicationsmentioning

confidence: 99%

“…Overall, we provide readers interested in OT-CEC with the most up-to-date overview of this field, and the related new SPs from 2019 to 2022 are listed in Table 1 [ 3 , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] , [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] , [53] , [54] , [55] , [56] , [57] , [58] , [59] , [60] , [61] , [62] , [63] , [64] , [65] ]. PubMed and Web of Science were used to search the following characters (also their acronyms) alone or in combination: “Open tubular”, “Capillary electrochromatography”, “Chiral separation”, “Stationary phase”, and “Coating” for relevant literature to analyze recent OT-CEC developments.…”

Section: Introductionmentioning

confidence: 99%

Recent applications and chiral separation development based on stationary phases in open tubular capillary electrochromatography (2019–2022)

Zheng

et al. 2023

Journal of Pharmaceutical Analysis

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“…In previous studies, our group prepared a novel octadecylamine (ODA)-modified PDA-coated capillary through an organic amine-triggered PDA-coating strategy [33,34].…”

Section: Introductionmentioning

confidence: 99%

Polydopamine-Assisted Rapid One-Step Immobilization of L-Arginine in Capillary as Immobilized Chiral Ligands for Enantioseparation of Dansyl Amino Acids by Chiral Ligand Exchange Capillary Electrochromatography

Gui

et al. 2021

Molecules

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Herein, a novel L-arginine (L-Arg)-modified polydopamine (PDA)-coated capillary (PDA/L-Arg@capillary) was firstly fabricated via the basic amino-acid-induced PDA co-deposition strategy and employed to constitute a new chiral ligand exchange capillary electrochromatography (CLE-CEC) method for the high-performance enantioseparation of D,L-amino acids (D,L-AAs) with L-Arg as the immobilized chiral ligand coordinating with the central metal ion Zn(II) as running buffer. Assisted by hydrothermal treatment, the robust immobilization of L-Arg on the capillary inner wall could be facilely achieved within 1 h, prominently improving the synthesis efficiency and simplifying the preparation procedure. The successful preparation of PDA/L-Arg coatings in the capillary was systematically characterized and confirmed using several methods. In comparison with bare and PDA-functionalized capillaries, the enantioseparation capability of the presented CLE-CEC system was significantly enhanced. Eight D,L-AAs were completely separated and three pairs were partially separated under the optimal conditions. The prepared PDA/L-Arg@capillary showed good repeatability and stability. The potential mechanism of the greatly enhanced enantioseparation performance obtained by PDA/L-Arg@capillary was also explored. Moreover, the proposed method was further utilized for studying the enzyme kinetics of L-glutamic dehydrogenase, exhibiting its promising prospects in enzyme assays and other related applications.

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Solvothermal-assisted in situ rapid growth of octadecylamine functionalized polydopamine-based permanent coating as stationary phase for open-tubular capillary electrochromatography

Cited by 10 publications

References 32 publications

High-Efficiency and Versatile Approach To Fabricate Diverse Metal–Organic Framework Coatings on a Support Surface as Stationary Phases for Electrochromatographic Separation

High-Efficiency and Versatile Approach To Fabricate Diverse Metal–Organic Framework Coatings on a Support Surface as Stationary Phases for Electrochromatographic Separation

Recent applications and chiral separation development based on stationary phases in open tubular capillary electrochromatography (2019–2022)

Polydopamine-Assisted Rapid One-Step Immobilization of L-Arginine in Capillary as Immobilized Chiral Ligands for Enantioseparation of Dansyl Amino Acids by Chiral Ligand Exchange Capillary Electrochromatography

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