A novel piperazine-bis(rhodamine-B)-based chemosensor for highly sensitive and selective naked-eye detection of Cu2+ and its application as an INHIBIT logic device

An Electrochemical Study on the Copolymer Formed from Piperazine and Aniline Monomers

“…The most classical way to perform chemical modification is to copolymerize aniline or pyrrole, for example, with monomers that are able to provide the final material with the desired catalytic features. In this context, chemical derivatives of piperazine (diethylenediamine) constitute a promising group of catalytic molecules that have been successfully applied in chemical and electrochemical sensing [ 6 , 11 , 12 , 13 , 14 ]. In spite of this, few studies exist that are devoted to the exploration of the catalytic properties of polymer systems containing the parent piperazine molecule.…”

An Effective ‘Off-On’ Artificial Probe Based on Rhodamine B Derivative for Sensitive and Selective Recognition of Cu2+ Ions

“…Selectivity is an important aspect of colorimetric and fluorescent artificial probes for the identification of target metal cations that coexist with other interference ions in real samples Sun et al, 2015). To study the ability of Cu 2+ selective detection of RhCHN in buffer solution (EtOH-H2O, 2:1, v/v, 10 mM HEPES, pH 7.2), the change in emission intensity was investigated by adding 2.0 equiv.…”

“…Selectivity is an important aspect of colorimetric and fluorescent artificial probes for the identification of target metal cations that coexist with other interference ions in real samples Sun et al, 2015). S8.…”

“…However, when different metal ions are added to a sensor solution, the spirolactamopen forms of the molecular structures generated by miscellaneous cations not only show the strong absorption bands and/or fluorescence emissions. There exists also a drastic change in color from colorless to a colour -such as pink or purple -allowing the naked-eye detection of target metal ions Sun et al, 2015;Tang et al, 2013;Sahana et al, 2017;Wang et al, 2014;Li et al, 2015;Chatterjee et al, 2016;Ozdemir, 2016;.…”

Bis-Rhodamine B System as a Tin Detector or Molecular Electronics Device

“…Some of these bis-Rhodamine B dyes were used for the construction of molecular logic gates of the INHIBIT type. 8,16,18 Here, we report a study of new bis-Rhodamine B derivatives suitable for the detection of metal ions with increased selectivity to the tetravalent tin. Moreover, our molecules might be suitable for the construction of the light dimmer operated by pH connected with a detector of too low pH value.…”