Perylene diimide-based fluorescent nanoassembly for sequential recognition of Fe3+and inorganic phosphate in the aqueous medium

Dey, N (2021) Perylene diimide-based fluorescent nanoassembly for sequential recognition of Fe3+and inorganic phosphate in the aqueous medium. In: 2021 International Conference on Materials and Technologies, Material TECH 2021, 9-10 Jan 2021, Raipur; India, pp. 2952-2956.

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Abstract

The formation of fluorescence organic nanoaggregates (FONs), via self-assembly of acetal-functionalized perylene diimide (APDI) amphiphile has been observed in the aqueous medium (pH 7.0). The J-type nanoassembly, so formed, showed highly selective interaction with Fe3+ion (Turn-off response). The detailed spectroscopic studies indicate that Fe3+ion binds with APDI molecules through the acetal functional group and transformed into H-type aggregates with higher charge-transfer characteristics. The in-situ formed iron complex (APDI-Fe3+) was further employed for sensing of pyrophosphate (Turn-On response) via metal ion displacement. Thus, the present system can sequentially detect both Fe3+and pyrophosphate via the 'On-Off-On' switching process. © 2021 Elsevier Ltd. All rights reserved.

Item Type:	Conference Paper
Publication:	Materials Today: Proceedings
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd
Department/Centre:	UG Programme
Date Deposited:	04 Aug 2021 06:46
Last Modified:	04 Aug 2021 06:46
URI:	http://eprints.iisc.ac.in/id/eprint/68963

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