New development of ‘sono-functional’ molecule: Binding to DNA by sonication

‘Sono-functional’ molecule 1 was prepared and its binding properties to DNA under ultrasonic irradiation were studied by UV spectra. As a result, it was shown that the binding of 1 to DNA was enhanced by ultrasound. Being compared with its precursor 2, it is clear that terminal thiol groups of 1 play an important role in specific binding to DNA.