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Electrospun Nanofiber Mats as "smart Surfaces" for Desorption Electrospray Ionization Mass Spectrometry (DESI MS)-Based Analysis and Imprint Imaging
Rani Gopalakrishnan Hemalatha, Mohd Azhardin Ganayee,
Published in American Chemical Society
2016
Volume: 88
   
Issue: 11
Pages: 5710 - 5717
Abstract
In this paper, desorption electrospray ionization mass spectrometry (DESI MS)-based molecular analysis and imprint imaging using electrospun nylon-6 nanofiber mats are demonstrated for various analytical contexts. Uniform mats of varying thicknesses composed of ∼200 nm diameter fibers were prepared using needleless electrospinning. Analytical applications requiring rapid understanding of the analytes in single drops, dyes, inks, and/or plant extracts incorporated directly into the nanofibers are discussed with illustrations. The possibility to imprint patterns made of printing inks, plant parts (such as petals, leaves, and slices of rhizomes), and fungal growth on fruits with their faithful reproductions on the nanofiber mats is illustrated with suitable examples. Metabolites were identified by tandem mass spectrometry data available in the literature and in databases. The results highlight the significance of electrospun nanofiber mats as smart surfaces to capture diverse classes of compounds for rapid detection or to imprint imaging under ambient conditions. Large surface area, appropriate chemical functionalities exposed, and easiness of desorption due to weaker interactions of the analyte species are the specific advantages of nanofibers for this application. © 2016 American Chemical Society.
About the journal
JournalData powered by TypesetAnalytical Chemistry
PublisherData powered by TypesetAmerican Chemical Society
ISSN00032700
Open AccessNo
Concepts (19)
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    Chemical analysis
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    Desorption
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    Electrospinning
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    Ink
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    Ionization
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    Mass spectrometry
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    Nanofibers
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    Plant extracts
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    Plants (botany)
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    Spectrometry
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    ANALYTICAL APPLICATIONS
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    ANALYTICAL CONTEXT
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    CHEMICAL FUNCTIONALITY
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    DESORPTION ELECTROSPRAY IONIZATION MASS SPECTROMETRIES
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    Electrospun nanofibers
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    Large surface area
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    RAPID UNDERSTANDING
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    Tandem mass spectrometry
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    Electrospray ionization