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The influence of polydopamine coating on gold nanorods for laser desorption/ionization time-of-flight mass spectrometric analysis

Abstract

This paper examines the effect of polydopamine (PD) coating of gold nanorods (GNRs) on their performance as a matrix material for LDI-MS analysis. Bare GNRs and PD-coated GNRs (PD@GNRs) were utilized for laser desorption/ionization time-of-flight mass spectrometric (LDI-MS) analysis of small molecules and synthetic polymers, and the influences of PD-coating in the LDI-MS analysis process were mechanistically studied. Based on the results, we found that the PD-coating of GNRs supressed the generation of undesired gold cluster ions, enhanced photothermal conversion and LDI-MS efficiency, and expanded the working molecular weight range.

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Publication details

The article was received on 28 Feb 2017, accepted on 09 May 2017 and first published on 15 May 2017


Article type: Paper
DOI: 10.1039/C7AN00356K
Citation: Analyst, 2017, Accepted Manuscript
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    The influence of polydopamine coating on gold nanorods for laser desorption/ionization time-of-flight mass spectrometric analysis

    K. Kang, H. Jang and Y. Kim, Analyst, 2017, Accepted Manuscript , DOI: 10.1039/C7AN00356K

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