From the journal:

Chemical Communications

Turn-on ratiometric Ag+ sensing aids in situ synthesis of NIR emissive silver nanoclusters

Palani Yuvaraj,a   Jayaraman Narayanan,a   Joseph Ajantha,ab   Masiyappan Karuppusamy, ORCID logo c   Muthuramalingam Prakash, ORCID logo cd   Jonalagadda Raghava Raoa  and  Shanmugam Easwaramoorthi ORCID logo *a  

* Corresponding authors

a Inorganic & Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Chennai–600020, India
E-mail: moorthi.clri@csir.res.in

b Centre for Analysis, Testing, and Reporting Services (CATERS), CSIR-Central Leather Research Institute, Chennai–600020, India

c Computational Chemistry Research Laboratory (CCRL), Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur–603203, India

d Centre for Advanced Computational and Theoretical Sciences (ACTS), SRM Institute of Science and Technology, Kattankulathur–603203, India

Abstract

The donor–acceptor probe based on N-ethylcarbazole and thiobarbituric acid senses Ag+ ions through turn-on, ratiometric fluorescence, and the binding results in the reduction of Ag+ into luminescent silver nanoclusters. The nanoclusters have tunable emission in the visible-NIR region and can be formed in situ, without requiring additional reducing agents.

Graphical abstract: Turn-on ratiometric Ag+ sensing aids in situ synthesis of NIR emissive silver nanoclusters

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Article information

DOI
https://doi.org/10.1039/D5CC05478H
Article type
Communication
Submitted
23 Sep 2025
Accepted
10 Dec 2025
First published
22 Dec 2025

Chem. Commun., 2026, Advance Article

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Turn-on ratiometric Ag+ sensing aids in situ synthesis of NIR emissive silver nanoclusters

P. Yuvaraj, J. Narayanan, J. Ajantha, M. Karuppusamy, M. Prakash, J. R. Rao and S. Easwaramoorthi, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D5CC05478H

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