Mitsunobu Nakamura

Fluorescence properties of 9,10-diphenylanthracene-modified DNA hairpins: Influence of salt-induced B–Z transition and thermal fluctuations

We developed new fluorescent DNA hairpins having 9,10-diphenylanthracene (DPA) units. Both DNA1 (one DPA) and DNA2 (two DPAs) showed a salt-induced B–Z transition in 5 M NaCl. Interestingly, DNA2 exhibited a significant twofold increase in fluorescence intensity when heated to 80...