Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation

Journal article


Publication Details

Author(s): Wawra S, Pflug L, Thajudeen T, Kryschi C, Stingl M, Peukert W
Journal: Nature Communications
Publication year: 2018
Volume: 9
Journal issue: 1
ISSN: 2041-1723


Abstract

Properties of nanoparticles are influenced by various parameters like size, shape or composition. Comprehensive high throughput characterization techniques are urgently needed to improve synthesis, scale~up to production and make way for new~applications of multidimensional particulate systems. In this study, we present a method for measuring two-dimensional size distributions of plasmonic nanorods in a single experiment. Analytical ultracentrifuge equipped with a multiwavelength extinction detector is used to record the optical and sedimentation properties of gold nanorods simultaneously. A combination of sedimentation and extinction properties, both depending on diameter and length of the dispersed nanorods, is used to measure two-dimensional distributions of gold nanorod samples. The length, diameter, aspect ratio, volume, surface and cross-sectional distributions can be readily obtained from these results. As the technique can be extended to other non-spherical plasmonic particles and can be used for determining relative amounts of particles of different shapes it provides complete and quantitative insights into particulate systems.


FAU Authors / FAU Editors

Kryschi, Carola Prof. Dr.
Professur für Physikalische Chemie
Peukert, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Pflug, Lukas Dr.
Professur für Angewandte Mathematik (Kontinuierliche Optimierung)
Stingl, Michael Prof. Dr.
Professur für Angewandte Mathematik (Kontinuierliche Optimierung)
Thajudeen, Thaseem
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Wawra, Simon
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

A1 Functional Particle Systems
Exzellenz-Cluster Engineering of Advanced Materials
A3 Multiscale Modeling and Simulation
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Wawra, S., Pflug, L., Thajudeen, T., Kryschi, C., Stingl, M., & Peukert, W. (2018). Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation. Nature Communications, 9(1). https://dx.doi.org/10.1038/s41467-018-07366-9

MLA:
Wawra, Simon, et al. "Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation." Nature Communications 9.1 (2018).

BibTeX: 

Last updated on 2019-19-03 at 19:08