Fluorescence oligomers

So far, there are only few reports about fluorescent oligomers that change their constitution upon addihon of an analyte. In contrast, there are many examples of fluorescent molecules that undergo a conformational change upon addition of certain analytes (e.g., molecular beacons [7]). Although conformationally dynamic receptors are sometimes discussed in the context of DCC [8], these systems will not be described in more detail in the present chapter. 

Trofimov, B. A., M.V. Markova, L.V. Morozova et al. 2010. Cationic and radical polymerization of N-vinyl-2-phenylpyrrole Synthesis of electroconducting, paramagnetic and fluorescent oligomers. Synthetic Met 160 1539-1543. 

Polyester composition can be determined by hydrolytic depolymerization followed by gas chromatography (28) to analyze for monomers, comonomers, oligomers, and other components including side-reaction products (ie, DEG, vinyl groups, aldehydes), plasticizers, and finishes. Mass spectroscopy and infrared spectroscopy can provide valuable composition information, including end group analysis (47,101,102). X-ray fluorescence is commonly used to determine metals content of polymers, from sources including catalysts, delusterants, or tracer materials added for fiber identification purposes (28,102,103). 

Kwok W-M, Ma C, Phillips DL (2006) Femtosecond time- and wavelength-resolved fluorescence and absorption spectroscopic study of the excited states of adenosine and an adenine oligomer. J Am Chem Soc 128 11894-11905... 

Lindgren M, Sorgjerd K, Hammarstrom P (2005) Detection and characterization of aggregates, prefibrillar amyloidogenic oligomers, and protofibrils using fluorescence spectroscopy. Biophys J 88(6) 4200-4212... 

Patel, R. C., Lange, D. C. and Patel, Y. C. (2002). Photobleaching fluorescence resonance energy transfer reveals ligand-induced oligomer formation of human somatostatin receptor subtypes. Methods 27, 340-8. 

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