Organic molecules with tunable fluorescence quantum yield are attractive for opto-electronic applications. A fluorophore with tunable fluorescence quantum yield should be a better choice for a variety of applications that...

A simple strategy is proposed to design and develop an intelligent device based on dual channel ion responsive spectral properties of a commercially available molecule, harmine (HM). The system can process different sets of opto-chemical inputs generating different patterns as fluorescence outputs at specific wavelengths which can provide an additional level of protection exploiting both password and pattern recognitions. The proposed system could have the potential to come up with highly secured combinatorial locks at the molecular level that could pose valuable real time and on-site applications for user authentication.

High-fidelity optical detection of picric acid is the urge of the time due to its toxic and explosive nature. Moreover, Picric acid is a molecule with versatile features like hydrogen...

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This review article summarizes the advancement of hydrogen bonding driven different photo-process (PT, ESIPT, ICT, PET, CHEF, TBET) based optical detection of HSO4− during the past two decades.