| Synthesis and Photophysical Properties of Polyfluorene With Dipicolylamine Groups on the Side Chain: Highly Selective and Sensitive Detection of Histidine. | |
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MedLine Citation:
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PMID: 23060042 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Two new polyfluorenes with dipicolylamine (DPA) pendant, PF-TDPA and PF-HDPA, are designed and synthesized by pre- and post-functionalization, respectively. PF-TDPA with a rigid side chain shows a selective fluorescence quenching upon the addition of Cu(2+) in a mixture solution of tetrahydrofuran and 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) buffer. What is more, the PF-TDPA/Cu(2+) complex can selectively detect histidine over other amino acids with a fluorescence recovery. In contrast, PF-HDPA with a flexible spacer exhibits a fluorescence quenching to Cu(2+) but slightly fluorescence recovery after the addition of histidine. This indicates that the proper distance between the two DPA groups play an important role in the detection of histidine. |
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Authors:
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Wenjun Zhang; Jingui Qin; Chuluo Yang |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-12 |
Journal Detail:
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Title: Macromolecular rapid communications Volume: - ISSN: 1521-3927 ISO Abbreviation: Macromol Rapid Commun Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9888239 Medline TA: Macromol Rapid Commun Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan 430072, P. R. China; Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315211, Zhejiang, P. R. China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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