Sequential Logic Operations with Surface-Confined Polypyridyl Complexes Displaying Molecular Random Access Memory Features

A DNA logic gate based on strand displacement reaction and rolling circle amplification, responding to multiple low-abundance DNA fragment input signals, and its application in detecting miRNAs

A conveniently amplified DNA AND logic gate platform was designed for the highly sensitive detection of low-abundance DNA fragment inputs based on strand displacement reaction and rolling circle amplification strategy.

Sequential logic operations with a molecular keypad lock with four inputs and dual fluorescence outputs

A novel coumarin-rhodamine conjugate was prepared, and its metal binding properties were studied by UV/Vis and fluorescence spectroscopy. The conjugate serves as a ratiometric and highly selective fluorescent sensor for Hg(2+) ions. Its metal-responsive spectral properties were utilized to construct a molecular keypad lock with four inputs and dual fluorescence outputs. The complexity of this molecular logic network can greatly enhance the security level of this device.

Fe-terpyridyl complex based multiple switches for application in molecular logic gates and circuits

The Fe(ii)-terpyridyl binary complex is used as a molecular switch upon external chemical stimuli. The stability of different switching states, their reversibility upon further chemical stimulus, prompted construction of solution based molecular logic gates and circuits.