A Biphasic Mercury‐Ion Sensor: Exploiting Microfluidics to Make Simple Anilines Competitive Ligands. Issue 41 (21st August 2015)

• Record Type: Journal Article
• Authors: Petzoldt, Martin; Eschenbaum, Carsten; Schwaebel, S. Thimon; Broedner, Kerstin; Lemmer, Uli; Hamburger, Manuel; Bunz, Uwe H. F.
• Is Part Of: Chemistry. Volume 21:Issue 41(2015)
• Page Start: 14297
• Page End: 14300
• Publication Date: 2015-08-21
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201502736
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Combining the molecular wire effect with a biphasic sensing approach (analyte in water, sensor‐dye in 2‐methyltetrahydrofuran) and a microfluidic flow setup leads to the construction of a mercury‐sensitive module. We so instantaneously detect Hg²⁺ ions in water at a 500 μ<sc>M</sc> concentration. The sensor, conjugated non‐water soluble polymer <bold>1</bold> (XFPF), merely supports dibutylaniline substituents as binding units. Yet, selective and sensitive detection of Hg²⁺‐ions is achieved in water. The enhancement in sensory response, when comparing the reference compound <bold>2</bold> to that of <bold>1</bold> in a biphasic system in a microfluidic chip is &gt;10³. By manipulation of the structure of <bold>1</bold>, further powerful sensor systems should be easily achieved.</p> </abstract>