Water-soluble poly(p-aryleneethynylene)s: a sensor array discriminates aromatic carboxylic acids
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 d...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
July 14, 2016
|
| In: |
ACS applied materials & interfaces
Year: 2016, Volume: 8, Issue: 31, Pages: 20415-20421 |
| ISSN: | 1944-8252 |
| DOI: | 10.1021/acsami.6b06462 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acsami.6b06462
|
| Author Notes: | Jinsong Han, Benhua Wang, Markus Bender, Kai Seehafer, Uwe H.F. Bunz |
| Summary: | 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. |
|---|---|
| Item Description: | Gesehen am 30.04.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1944-8252 |
| DOI: | 10.1021/acsami.6b06462 |