Issue 82, 2024
From the journal:

Chemical Communications

Plasmonic circular dichroism-based metal ion detection using gold nanorod–DNA complexes†

Yali Shi,‡a   Satoshi Nakamura, ORCID logo ‡*bc   Hideyuki Mitomo, ORCID logo bd   Yusuke Yonamine,b   Guoqing Wang ORCID logo e  and  Kuniharu Ijiro ORCID logo *b  

* Corresponding authors

a Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-Ku, Sapporo 060-0810, Japan

b Research Institute for Electronic Science, Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
E-mail: ijiro@es.hokudai.ac.jp

c Institute for the Promotion of General Graduate Education (IPGE), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
E-mail: s.nakamura@yz.yamagata-u.ac.jp

d Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan

e MOE Key Laboratory of Evolution and Marine Biodiversity and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China

Abstract

We report that complexes formed between gold nanorods (AuNRs) and metal-mediated DNA exhibit plasmonic circular dichroism (CD) signals up to ∼400 times stronger than the molecular CD signal of DNA. This substantial enhancement enables the detection of metal ions, offering a promising approach to analytical applications in chiral biochemistry.

Graphical abstract: Plasmonic circular dichroism-based metal ion detection using gold nanorod–DNA complexes

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Article information

DOI
https://doi.org/10.1039/D4CC04017A
Article type
Communication
Submitted
07 Aug 2024
Accepted
28 Aug 2024
First published
27 Sep 2024
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2024,60, 11794-11797

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Plasmonic circular dichroism-based metal ion detection using gold nanorod–DNA complexes

Y. Shi, S. Nakamura, H. Mitomo, Y. Yonamine, G. Wang and K. Ijiro, Chem. Commun., 2024, 60, 11794 DOI: 10.1039/D4CC04017A

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