Zitieren Sie bitte immer diesen URN: urn:nbn:de:kobv:b43-422571
Optical pH Sensor Covering the Range from pH 0−14 Compatible with Mobile-Device Readout and Based on a Set of Rationally Designed Indicator Dyes
- In this work, a family of pH-responsive fluorescent probes has been designed in a rational manner with the aid of quantum chemistry tools, covering the entire pH range from 0−14. Relying on the boron−dipyrromethene (BODIPY) core, all the probes as well as selected reference dyes display very similar spectroscopic properties with ON−OFF fluorescence switching responses, facilitating optical readout in simple devices used for detection and analysis. Embedding of the probes and reference dyes into hydrogel spots on a plastic strip yielded a test strip that reversibly indicates pH with a considerably small uncertainty of ~0.1 pH units. These strips are not only reusable but, combined with a 3D-printed case that can be attached to a smartphone, the USB port of which drives the integrated LED used for excitation, allows for autonomous operation in on-site or in-the-field applications; the developed Android application software (“app”) further simplifies operation for unskilled users.
Autor*innen: | Raul Gotor, Pichandi Ashokkumar, Mandy Hecht, Karin Keil, Knut RurackORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Analytical Chemistry |
Jahr der Erstveröffentlichung: | 2017 |
Verlag: | American Chemical Society |
Verlagsort: | Washington, D.C., USA |
Jahrgang/Band: | 89 |
Ausgabe/Heft: | 16 |
Erste Seite: | 8437 |
Letzte Seite: | 8444 |
DDC-Klassifikation: | Naturwissenschaften und Mathematik / Chemie / Analytische Chemie |
Freie Schlagwörter: | BODIPY; Fluorescence; Smartphone; Test strip; pH measurement |
DOI: | 10.1021/acs.analchem.7b01903 |
URN: | urn:nbn:de:kobv:b43-422571 |
ISSN: | 0003-2700 |
ISSN: | 1520-6882 |
Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
Lizenz (Deutsch): | ![]() |
Datum der Freischaltung: | 04.10.2017 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 04.10.2017 |