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Chemically Selective Imaging of Individual Bonds through Scanning Electron Energy-Loss Spectroscopy : Disulfide Bridges Linking Gold Nanoclusters

Year of publication

2020

Authors

Sokołowska, Karolina; Luan, Zhongyue; Hulkko, Eero; Rameshan, Christoph; Barrabés, Noelia; Apkarian, Vartkess A.; Lahtinen, Tanja

Abstract

As proof-of-principle of chemically selective, spatially resolved imaging of individual bonds, we carry out electron energy-loss spectroscopy in a scanning transmission electron microscopy instrument on atomically precise, thiolate-coated gold nanoclusters linked with 5,5′-bis(mercaptomethyl)-2,2′-bipyridine dithiol ligands. The images allow the identification of bridging disulfide bonds (R–S–S–R) between clusters, and X-ray photoelectron spectra support the finding.
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Organizations and authors

Aalto University

Hulkko Eero

University of Jyväskylä

Hulkko Eero

Sokolowska Karolina

Lahtinen Tanja Orcid -palvelun logo

Publication type

Publication format

Article

Parent publication type

Journal

Article type

Original article

Audience

Scientific

Peer-reviewed

Peer-Reviewed

MINEDU's publication type classification code

A1 Journal article (refereed), original research

Publication channel information

Journal

Journal of physical chemistry letters

Publisher

AMERICAN CHEMICAL SOCIETY

Volume

11

Issue

3

Pages

796-799

ISSN

1948-7185

​Publication forum

61353

​Publication forum level

3

Open access

Open access in the publisher’s service

No

Self-archived

Yes

Other information

Fields of science

Chemical sciences; Nanotechnology

Keywords

[object Object],[object Object],[object Object]

Internationality of the publisher

International

Language

English

International co-publication

Yes

Co-publication with a company

No

DOI

10.1021/acs.jpclett.9b03496

The publication is included in the Ministry of Education and Culture’s Publication data collection

Yes