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Characterization of gold nanorods conjugated with synthetic glycopolymers using an analytical approach based on spICP-SFMS and EAF4-MALS

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Velimirovic, Milica, Pancaro, Alessia, Mildner, Robert, Georgiou, Panagiotis G., Tirez, Kristof, Nelissen, Inge, Johann, Christoph, Gibson, Matthew I. and Vanhaecke, Frank (2021) Characterization of gold nanorods conjugated with synthetic glycopolymers using an analytical approach based on spICP-SFMS and EAF4-MALS. Nanomaterials, 11 (10). 2720. doi:10.3390/nano11102720

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Official URL: https://doi.org/10.3390/nano11102720

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Abstract

A new comprehensive analytical approach based on single-particle inductively coupled plasma-sector field mass spectrometry (spICP-SFMS) and electrical asymmetric-flow field-flow-fractionation combined with multi-angle light scattering detection (EAF4-MALS) has been examined for the characterization of galactosamine-terminated poly(N-hydroxyethyl acrylamide)-coated gold nanorods (GNRs) in two different degrees of polymerization (DP) by tuning the feed ratio (short: DP 35; long: DP 60). spICP-SFMS provided information on the particle number concentration, size and size distribution of the GNRs, and was found to be useful as an orthogonal method for fast characterization of GNRs. Glycoconjugated GNRs were separated and characterized via EAF4-MALS in terms of their size and charge and compared to the bare GNRs. In contrast to spICP-SFMS, EAF4-MALS was also able of providing an estimate of the thickness of the glycopolymer coating on the GNRs surface.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Q Science > QE Geology
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science, Engineering and Medicine > Science > Chemistry
Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH): Nanotechnology -- Research, Nanostructured materials, Gold -- Spectra, Bioconjugates, Copolymers -- Synthesis, High resolution spectroscopy, Field-flow fractionation, Light -- Scattering
Journal or Publication Title: Nanomaterials
Publisher: MDPI Publishing
ISSN: 1847-9804
Official Date: 15 October 2021
Dates:
DateEvent
15 October 2021Published
12 October 2021Accepted
Volume: 11
Number: 10
Article Number: 2720
DOI: 10.3390/nano11102720
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
12ZD120NFonds voor wetenschappelijk onderzoek-Vlaanderenhttp://viaf.org/viaf/124392886
814236 (NanoCarb)[ERC] Horizon 2020 Framework Programmehttp://dx.doi.org/10.13039/100010661
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