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The Energy Technologies Area (ETA) is unique in translating fundamental scientific discoveries into scalable technology adoption. Our approach combines an understanding of the marketplace and the role of state and federal regulation and policies. ETA's research drives real-world, practical results that affect and improve the everyday lives of Americans and those across the globe. Saving energy and battling the Climate Crisis are key to the foundation of our research, which is driven by technoeconomic analysis and in-lab experimentation and discovery.

A new class of pyrene based multifunctional chemosensors for differential sensing of metals in different media: Selective recognition of Zn2+ in organic and Fe3+ in aqueous medium

Publication Type

Journal Article

Date Published

01/2015

Authors

Raj, , Tilak, Preeti Saluja, Narinder Singh

DOI

10.1016/j.snb.2014.09.049

Abstract

Pyrene based Bigineilli compounds 1–4 were synthesized through one pot, multicomponent organic synthesis and were assessed for their metal binding ability under both organic medium and through forming their ONPs (aqueous medium). Sensors 3 and 4 selectively bind Zn2+ in acetonitrile through quenching in fluorescence intensity of excimer peak at 470 nm and amplifying monomer peak (which consist of two shoulder peaks at 380 nm and 395 nm). ONPs of 3 and 4 in aqueous medium displayed AIEE (aggregation induced enhanced emission) phenomenon through enhancement in fluorescence intensity. Furthermore, ONPs of 3 and 4 sense Fe3+ by quenching fluorescence intensity of both monomer and excimer emission peak. Sensing event of Fe3+ by organic nanoparticles of 3 and 4 was authenticated with CV profile of 3 and 4with Fe3+.

Journal

Sensors and Actuators B: Chemical

Volume

206

Year of Publication

2015

URL

https://linkinghub.elsevier.com/retrieve/pii/S0925400514011186

ISSN

09254005

Organization

Energy Technologies Area, Energy Storage and Distributed Resources Division