SPECIAL ISSUE ON THE ASIAN SYMPOSIUM ON NANOTECHNOLOGY AND NANOSCIENCE 2002 (ASIANANO 2002); EDITED BY MASATSUGU SHIMOMURA AND TERUYA ISHIHARANo Access

CONTROLLED AGGREGATION OF AZOBENZENE BASED ON DNA-MIMETICS AT THE AIR–WATER INTERFACE

KUNIHARU IJIRO

Research Institute for Electronic Science, Hokkaido University, N12W6, Kita-ku, Sapporo 064-0812, Japan

Precursory Research for Embryonic Science and Technology, Japan Science and Technology Corporation (PRESTO, JST), Japan

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JIN MATSUMOTO

Precursory Research for Embryonic Science and Technology, Japan Science and Technology Corporation (PRESTO, JST), Japan

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MITSUHIKO MORISUE

Research Institute for Electronic Science, Hokkaido University, N12W6, Kita-ku, Sapporo 064-0812, Japan

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MASATSUGU SHIMOMURA

Research Institute for Electronic Science, Hokkaido University, N12W6, Kita-ku, Sapporo 064-0812, Japan

Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University, N12W6, Kita-ku, Sapporo 060-0812, Japan

Corresponding author.

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https://doi.org/10.1142/S0219581X02000735Cited by:3 (Source: Crossref)

Abstract

Monolayers of thymine amphiphile containing azobenzene chromophore (Azo-Thy) were prepared on various aqueous oligonucleotide (dA₃₀, d(GA)₁₅, d(GGA)₁₀) subphases. Pressure–area isotherms and reflection absorption spectra of the monolayers on dA₃₀ or d(GA)₁₅ solution showed that the H-aggregate of the azobenzene units was formed at higher surface pressure than 25 mN/m. In contrast, the monolayer on an aqueous d(GGA)₁₀ solution did not form any aggregates of the azobenzene units even at high surface pressure. Base-pair formation between Azo-Thy and template d(GGA)₁₀ could give free volume to the azobenzene units in the monolayer to prevent the aggregation of the azobenzene units at the air–water interface.