Fluorescence sensor for sequential detection of zinc and phosphate ions

Excited-state intramolecular proton-transfer (ESIPT) based fluorescence sensors and imaging agents

“…Bound Zn 2+ could be displaced by the sequential addition of either hydrogen pyrophosphate or hydrogen phosphate, which led to an overall decrease in fluorescence intensity. 44 Copper (Cu + and Cu 2+ )…”

“…Measurement conditions: pH = 7.5. N-terminus of a Tat (44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55)(56)(57)(58)(59)(60)(61) peptide that corresponded to the binding domain of the HIV-1 Tat protein. These ESIPT labelledpeptides produced dramatic ratiometric changes in the fluorescence intensity and could be used to investigate hydration levels in the vicinity of the peptide/oligonucleotide complex, revealing a solvation trend that decreases in the following order short ssDNAs c long ssDNAs 4 DNA hairpins 4 dsDNAs.…”

A hexa-quinoline basedC3-symmetric chemosensor for dual sensing of zinc(ii) and PPi in an aqueous mediumviachelation induced “OFF–ON–OFF” emission

“…On the other hand, the sensor with multiple Zn 2+ sites would be a potential candidate for screening phosphates including its higher analogues. [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69] Chart 1 Chemical structure of the ligand 1.…”

An IMPLICATION-logic-based fluorescent probe for sequential detection of Cu2+ and phosphates in living cells

“…Since the report of the first AND logic gate by de Silva and co-workers, the design of molecular logic gates with various functions, such as AND, OR, NOT, INHIBIT, etc., have become an important focus of chemical research. [23][24][25][26][27][28][29][30][31] Especially, the IMPLICATION-type logic gate in which two or more analytes/inputs (cations and anions) induce different fluorescence signals can perform multiple logical operations with a variety of digital outputs; 32,33 thus, its multi-stimulus-responsive fluorescence properties not only enable concurrent analysis of multiple targets but also hold promising prospects in processing binary information for the construction of novel logic gates. [34][35][36][37] To date, some reported IMPLICATION-type logic gates have been built based on the fluorescent ligands containing chelating sites.…”