Diketopyrrolopyrrole J‐Aggregates Formed by Self‐Organization with DNA. Issue 6 (22nd April 2014)

• Record Type: Journal Article
• Authors: Tsuto, Koji; Nakamura, Mitsunobu; Takada, Tadao; Yamana, Kazushige
• Is Part Of: Chemistry, an Asian journal. Volume 9:Issue 6(2014:Jun.)
• Page Start: 1618
• Page End: 1622
• Publication Date: 2014-04-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201402063
• Languages: English
• ISSNs: 1861-4728

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Bis(2‐thienyl)diketopyrrolopyrrole with two Zn^II‐cyclens (ZnCyc‐DPP) was designed and synthesized to evaluate the selective binding of Zn^II‐cyclen with thymine base in single‐strand DNA as a tool for the construction of a highly ordered multichromophore system on DNAs. Through UV/Vis titrations, gel filtration chromatography, and circular dichroism spectroscopy, ZnCyc‐DPP formed J‐type DPP aggregates with oligo‐dT_{<italic>n</italic>} DNAs. The DPP aggregates absorbed on a gold electrode exhibited good photocurrent responses. The present results show that binding Zn^II‐cyclen–chromophore conjugates and thymine bases together is a powerful tool for preparing DNA‐templated multichromophoric systems with specific functions.</p> </abstract>