Skip to main navigation Skip to search Skip to main content

An ESIPT Probe for the Ratiometric Imaging of Peroxynitrite Facilitated by Binding to Aβ-Aggregates

  • Adam C. Sedgwick
  • , Wei Tao Dou
  • , Jin Biao Jiao
  • , Luling Wu
  • , George T. Williams
  • , A. Toby A. Jenkins
  • , Steven D. Bull
  • , Jonathan L. Sessler*
  • , Xiao Peng He*
  • , Tony D. James*
  • *Corresponding author for this work
  • Department of Chemistry, University of Bath
  • University of Texas at Austin
  • East China University of Science and Technology
  • Sophia University

Research output: Contribution to journalArticlepeer-review

Abstract

A series of 3-hydroxyflavone (3-HF) ESIPT (excited-state intramolecular proton transfer) boronate-based fluorescent probes have been developed for the detection of peroxynitrite (ONOO-). The dyes are environmentally sensitive, and each probe exhibited a ratiometric response toward ONOO-in a micellar environment. The probes were used to image different aggregation states of amyloid-β (Aβ) in the presence of ONOO-. The3-HF-OMeprobe was found to produce a ratiometric response toward ONOO-when bound to Aβ aggregates, resulting in a novel host-guest ensemble, which adds insight into the development of other ESIPT-based probes for the simultaneous sensing of fibrous proteins/peptides and environmental ROS/RNS.

Original languageEnglish
Pages (from-to)14267-14271
Number of pages5
JournalJournal of the American Chemical Society
Volume140
Issue number43
DOIs
StatePublished - 31 Oct 2018
Externally publishedYes

Fingerprint

Dive into the research topics of 'An ESIPT Probe for the Ratiometric Imaging of Peroxynitrite Facilitated by Binding to Aβ-Aggregates'. Together they form a unique fingerprint.

Cite this