Multidimensional response analysis towards the detection and identification of soft divalent metal ions

Fluorescent Binary Ensemble Based on Pyrene Derivative and Sodium Dodecyl Sulfate Assemblies as a Chemical Tongue for Discriminating Metal Ions and Brand Water

“…17 systems for discrimination of metal ions are still scarcely developed and in high demand. 21 We have been interested in using surfactant assemblies modulating the fluorescence emission of a fluorophore with multiple emission bands to develop discriminative sensors. 22−24 The variation of aggregation states of amphiphilic surfactant assemblies can well modulate the fluorescence emission of the encapsulated fluorophores.…”

“…Therefore, to avoid such issues, single discriminative fluorescent sensors based on multiwavelength cross-reactive responses are developed. Using such sensors, the data acquisition for an analyte can be achieved through one scan of the whole spectrum, and the fluorescence responses at different wavelengths can be combined to generate a recognition pattern for a specific analyte. − However, single fluorescent sensing systems for discrimination of metal ions are still scarcely developed and in high demand …”

Colorimetric Sensor Design

“…The Lavigne group has used conjugated polymer aggregation in colorimetric sensory systems for the detection of structurally similar diamines [86], biogenic amines [126,127], and soft divalent metal ions [128]. Carboxylatefunctionalized polythiophenes (14) were used in this work, which would form favorable connections with the analytes listed through both electrostatic and hydrogen-bonding interactions.…”

“…Swager's work utilized [15] crown-5 ethers, which bind 2:1 with potassium ions, instead of [18]crown-6 ethers which bind 1:1 [82]. In the same way, the Lavigne group worked to sense diamines and divalent metals that would induce aggregation [86,[126][127][128].…”

A new polythiophene derivative-based fluorescent sensor for Co2+, Cu2+, Cd2+, and its complex with Cu2+ for sensing homocysteine and glutathione

“…However, only few papers have been devoted to the study of polythiophene derivatives for directly detecting multiple metal ions. John J. Lavigne et al realized multidimensional response analysis toward identification of a series of divalent metal ions, while the whole detection relied on small molecules which acted as competing ligands, making it uneasy to handle [23]. Swapan Kumar Dolui et al prepared a polythiophene based fluorescence sensor for acids and metal ions [24].…”