Analytical and Bioanalytical Chemistry

, Volume 411, Issue 1, pp 147–156 | Cite as

Nanoparticle microarray for high-throughput microbiome metabolomics using matrix-assisted laser desorption ionization mass spectrometry

  • Rebecca L. Hansen
  • Maria Emilia Dueñas
  • Torey Looft
  • Young Jin LeeEmail author
Paper in Forefront


A high-throughput matrix-assisted laser desorption/ionization mass spectrometry (MALDI)-MS-based metabolomics platform was developed using a pre-fabricated microarray of nanoparticles and organic matrices. Selected organic matrices, inorganic nanoparticle (NP) suspensions, and sputter coated metal NPs, as well as various additives, were tested for metabolomics analysis of the turkey gut microbiome. Four NPs and one organic matrix were selected as the optimal matrix set: α-cyano-4-hydroycinnamic acid, Fe3O4 and Au NPs in positive ion mode with 10 mM sodium acetate, and Cu and Ag NPs in negative ion mode with no additive. Using this set of five matrices, over two thousand unique metabolite features were reproducibly detected across intestinal samples from turkeys fed a diet amended with therapeutic or sub-therapeutic antibiotics (200 g/ton or 50 g/ton bacitracin methylene disalicylate (BMD), respectively), or non-amended feed. Among the thousands of unique features, 56 of them were chemically identified using MALDI-MS/MS, with the help of in-parallel liquid chromatography (LC)-MS/MS analysis. Lastly, as a proof of concept application, this protocol was applied to 52 turkey cecal samples at three different time points from the antibiotic feed trial. Statistical analysis indicated variations in the metabolome of turkeys with different ages or treatments.

Graphical abstract


Metabolomics MALDI Mass spectrometry Nanoparticles Turkey Microbiome High-throughput 


Funding information

This work was funded by the United States Department of Agriculture-National Institute of Food and Agriculture (USDA-NIFA).

Compliance with ethical standards

All animal experiments were performed at the National Animal Disease Center (NADC), USDA, Ames, IA, USA, following the ethical guidelines set by the Institutional Animal Care and Use Committee (IACUC) using the approved protocol ARS-2869.

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2018_1436_MOESM1_ESM.pdf (686 kb)
ESM 1 (PDF 685 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Rebecca L. Hansen
    • 1
  • Maria Emilia Dueñas
    • 1
  • Torey Looft
    • 2
  • Young Jin Lee
    • 1
    Email author
  1. 1.Department of ChemistryIowa State UniversityAmesUSA
  2. 2.United States Department of AgricultureNational Animal Disease CenterAmesUSA

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