fulltext.study @t Gmail

Synthesis and photophysical properties of poly(arylene ethynylene) small-molecules and polymers derivatized with leucine substituents

Paper ID Volume ID Publish Year Pages File Format Full-Text
25866 43900 2015 8 PDF Available
Title
Synthesis and photophysical properties of poly(arylene ethynylene) small-molecules and polymers derivatized with leucine substituents
Abstract

•Photochemical studies of L-leucine/polyarylene-etynylene small molecules and polymers.•Sensing materials based on aminoacidic receptors grafted onto conjugated platforms.•Tuning of absorption/emission performances of different acetylenic/aromatic sequences.

Aminoacidic/peptidic functionalized poly(aryleneethynylenes) (PAEs) are bio-inspired smart hybrids of great potential as active components in sensing devices. These materials synergically combine the superb photophysical properties of highly ethynylated unsaturated backbones with the large possibility of aminoacid and peptide design towards specific target-analyte binding. Conformational changes and/or electron density variations occurring along the PAE conjugated path, as a consequence of analyte binding to the aminoacidic/peptidic receptor site, might dramatically change the optoelectronic properties of the material, thus signaling the presence of the analyte.In this paper, we have studied the photochemistry of two groups of L-leucine/polyarylene-etynylene small molecules and polymers with the aim of optimizing the photochemical performances of aminoacidic derivatized PAE structures, in view of their use for metal sensing.Taking into account that among the different chemical sensors, fluorescence-based ones present many advantages in terms of sensitivity, selectivity, no need of references, and multiple readout signals, we have searched for more insight into the evolution of the optical properties of oligomers and polymers as a function of the structure of the PAE aminoacidic assembling.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Poly(arylene ethynylene); Aminoacid; Fluorescence; Stille coupling
First Page Preview
Synthesis and photophysical properties of poly(arylene ethynylene) small-molecules and polymers derivatized with leucine substituents
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 298, 1 February 2015, Pages 1–8
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us