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author:

Lei, Xiaoyun (Lei, Xiaoyun.) [1] | Huang, Ting (Huang, Ting.) [2] | Wu, Xiaoping (Wu, Xiaoping.) [3] | Mangelings, Debby (Mangelings, Debby.) [4] | Van Eeckhaut, Ann (Van Eeckhaut, Ann.) [5] | Bongaerts, Jana (Bongaerts, Jana.) [6] | Terryn, Herman (Terryn, Herman.) [7] | Vander Heyden, Yvan (Vander Heyden, Yvan.) [8]

Indexed by:

EI Scopus SCIE

Abstract:

A novel molecularly imprinted monolithic (MIM) column was designed and fabricated using the epitope approach, and was used for the selective capillary microextraction (CME) of the neuropeptides neumtensin (NT) and neummedin N (NmN). The MIMs were synthesized in a capillary by thermally initiated polymerization of the functional monomer (methacrylic acid (MAA)), in the presence of a dummy template (Pro-Tyr-Ile-Leu (PYIL)), a crosslinker and porogens. The resulting monoliths were characterized by scanning electron microscopy, pore size distribution measurement, and Fourier transform infrared spectroscopy. Different synthesis conditions of the MIM column were investigated. The parameters affecting the MIM-CME performance, including loading, washing and elution protocols, were optimized as well. The MIMs were used to enrich NT and NmN from human plasma prior to HPLC-UV analysis. The imprinted monolith showed an excellent maximum adsorption capacity of 245-711 mg mL(-1) and selectivity (imprinting factor of 5.7-13.4) towards its target peptides. Low detection limits of 0.62 and 1.20 nM, and satisfactory recoveries (82.5-98.8%) were obtained for NT and NmN, respectively. The proposed MIM-CME/HPLC-UV method was found suitable to be used as an effective tool for the highly efficient and specific analysis of NT and NmN in human plasma samples.

Keyword:

Capillary microextraction Epitope approach Molecularly imprinted monolithic column Neuropeptides

Community:

  • [ 1 ] [Lei, Xiaoyun]Fuzhou Univ, Coll Chem, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China
  • [ 2 ] [Huang, Ting]Fuzhou Univ, Coll Chem, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China
  • [ 3 ] [Wu, Xiaoping]Fuzhou Univ, Coll Chem, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China
  • [ 4 ] [Lei, Xiaoyun]Vrije Univ Brussel VUB, Dept Analyt Chem Appl Chemometr & Mol Modelling, Brussels, Belgium
  • [ 5 ] [Mangelings, Debby]Vrije Univ Brussel VUB, Dept Analyt Chem Appl Chemometr & Mol Modelling, Brussels, Belgium
  • [ 6 ] [Bongaerts, Jana]Vrije Univ Brussel VUB, Dept Analyt Chem Appl Chemometr & Mol Modelling, Brussels, Belgium
  • [ 7 ] [Vander Heyden, Yvan]Vrije Univ Brussel VUB, Dept Analyt Chem Appl Chemometr & Mol Modelling, Brussels, Belgium
  • [ 8 ] [Van Eeckhaut, Ann]Vrije Univ Brussel VUB, Ctr Neurosci, Dept Pharmaceut Chem Drug Anal & Drug Informat, Brussels, Belgium
  • [ 9 ] [Bongaerts, Jana]Vrije Univ Brussel VUB, Ctr Neurosci, Dept Pharmaceut Chem Drug Anal & Drug Informat, Brussels, Belgium
  • [ 10 ] [Terryn, Herman]Vrije Univ Brussel VUB, Dept Mat & Chem, Res Grp Electrochem & Surface Engn, Brussels, Belgium

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Source :

TALANTA

ISSN: 0039-9140

Year: 2022

Volume: 243

6 . 1

JCR@2022

5 . 6 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:74

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 12

SCOPUS Cited Count: 10

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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