We describe poly(aryleneethynylene)s (PAE) as powerful sensor cores. We discuss concepts (super quenching, molecular wire effect, multivalency) that were developed using PAEs and also the relationship that connects side chain structure (polar, polyelectrolyte, etc., number of ionic groups per repeat, position) and optical properties such as quantum yields. In the second part of the review we discuss applications of PAEs in their interaction with sensor targets; metal cations, fluoride and other anions, explosives, proteins and whole cells being the target for PAEs, while cationic PAEs have been used for the transfection of eukaryotic cells with RNA.
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Poly(aryleneethynylene)s (PAE) as paradigmatic sensor cores.
Chem Soc Rev
July 2015
Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Federal Republic of Germany.
We describe poly(aryleneethynylene)s (PAE) as powerful sensor cores. We discuss concepts (super quenching, molecular wire effect, multivalency) that were developed using PAEs and also the relationship that connects side chain structure (polar, polyelectrolyte, etc., number of ionic groups per repeat, position) and optical properties such as quantum yields.
View Article and Find Full Text PDFPoly(aryleneethynylene)s.
Macromol Rapid Commun
May 2009
School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlanic Drive, Atlanta, GA 30332, USA.
Poly(aryleneethynylene)s (PAE) are easily synthesized, chemically stable, and color-responsive towards their surroundings. These superbly chromic polymers are attractive as active transducers in sensors and advanced organic electronic devices. PAEs are generally fluorescent with emission maxima ranging from 420-600 nm, and can be either water- or organo-soluble.
View Article and Find Full Text PDFDisilylphenylene and tetrasilylphenylene as a new building unit for highly fluorescent poly(aryleneethynylene)s.
Chem Asian J
September 2008
Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Japan.
We report the synthesis and photophysical properties of poly(aryleneethynylene)s (PAEs) containing disilyl- or tetrasilyl-substituted phenylene as the key building unit. The fluorescence spectra of one of the PAEs, consisting of the diethynylbis(trimethylsilyl)phenylene and fluorenylene units, shows an intense blue emission with the maximum at 428 nm. The absolute quantum yield (Phi(F)) and the fluorescence lifetime (tau(s)) are 0.
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