Influence of DNA on J-aggregate formation of cyanine dyes

Yutaka Kawabe; Sho Kato

doi:10.1117/12.893122

15 September 2011 Influence of DNA on J-aggregate formation of cyanine dyes

Yutaka Kawabe, Sho Kato

Proceedings Volume 8103, Nanobiosystems: Processing, Characterization, and Applications IV; 81030D (2011) https://doi.org/10.1117/12.893122
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

We employed biopolymer DNA as a template to form J-aggregates of pseudoisocyanine (PIC), and succeeded to optimize the conditions for their formation in solutions and solid films. The optical characteristics of J-aggregates were investigated by absorption, fluorescence and circular dichroic (CD) spectra. For both films and solutions, polyvinylalcohol (PVA) introduced as a matrix for the films was proved to play a role to improve the film quality. We prepared the samples of several types of cyanine dyes systematically, finding the relationship among the molecular conjugated length and effects from the interaction with DNA. These results show possibility of application of J-aggregate into novel optical devices requiring optical nonlinearity or superradiant behavior.

Citation Download Citation

Yutaka Kawabe and Sho Kato "Influence of DNA on J-aggregate formation of cyanine dyes", Proc. SPIE 8103, Nanobiosystems: Processing, Characterization, and Applications IV, 81030D (15 September 2011); https://doi.org/10.1117/12.893122

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