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Issue 13, 2017
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The influence of polydopamine coating on gold nanorods for laser desorption/ionization time-of-flight mass spectrometric analysis

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Abstract

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

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

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Article information


Submitted
28 Feb 2017
Accepted
09 May 2017
First published
15 May 2017

Analyst, 2017,142, 2372-2377
Article type
Paper

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, 142, 2372
DOI: 10.1039/C7AN00356K

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