Doktorand Nikolai Löhr ist Erstautor der Studie. Er zeigt Anthrachinon-Verbindungen, die ihre Farbe und Löslichkeit verändern, je nach pH-Wert der Umgebung. Oben: unter sauren Bedingungen in organischer Lösung. Unten: in alkalischer, wässriger Lösung.
fFoto: Jens Meyer/Uni Jena
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