Water-soluble poly(p-aryleneethynylene)s

• Verfasst von: Han, Jinsong [VerfasserIn]
• Verfasst von: Wang, Benhua [VerfasserIn]
• Verfasst von: Bender, Markus [VerfasserIn]
• Verfasst von: Seehafer, Kai [VerfasserIn]
• Verfasst von: Bunz, Uwe H. F. [VerfasserIn]
• Titel: Water-soluble poly(p-aryleneethynylene)s
• Titelzusatz: a sensor array discriminates aromatic carboxylic acids
• Verf.angabe: Jinsong Han, Benhua Wang, Markus Bender, Kai Seehafer, Uwe H.F. Bunz
• E-Jahr: 2016
• Jahr: July 14, 2016
• Umfang: 7 S.
• Fussnoten: Gesehen am 30.04.2020
• Titel Quelle: Enthalten in: American Chemical SocietyACS applied materials & interfaces
• Ort Quelle: Washington, DC : Soc., 2009
• Jahr Quelle: 2016
• Band/Heft Quelle: 8(2016), 31, Seite 20415-20421
• ISSN Quelle: 1944-8252
• DOI: doi:10.1021/acsami.6b06462
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1696921058

Abstract

A chemical tongue consisting of 11 elements (four poly(p-aryleneethynylene)s (PAE) at pH 7 and pH 13, and seven electrostatic complexes formed from oppositely charged poly(p-aryleneethynylene)s at pH 7) discriminate 21 benzoic and phenylacetic acid derivatives in aqueous solution. The mechanism of discrimination is the fluorescence modulation of the PAEs, leading to quenching or fluorescence turn-on. The PAEs alone at both pH values and the tongue, consisting of the complexes only, discriminate the 21 acids with 92% (PAEs at pH 7), 95% (PAEs at pH 13), and 99% (complexes at pH 7) reliability after linear discriminant analysis (LDA). A sensor field with all 14 elements, according to LDA, discriminates all of the 21 acids with 100% accuracy.