A series of selective and sensitive fluorescent sensors based on a thiophen-2-yl-benzothiazole unit for Hg²⁺

Abstract

Different types of fluorescent probes for Hg2+ based on the 5-thiophen-2-yl-benzothiazole derivatives (TBT, CTBT, DTBT and NTBT) were realized by changing the subsituents, including the fluorescence quenching probe, the fluorescence enhancement probe and the ratiometric fluorescent probe.

Dual chemosensor for the rapid detection of mercury(ii) pollution and biothiols

“…24 However, these methods are time-consuming, and require expensive instrumentation and complex sample preparation protocols. 25,26 Therefore, there is a critical need for sensitive cehmosensors for the rapid and selective detection of Hg 2+ pollution in the environment. 17,25,27 Cys is a biothiol that plays a crucial role in biological processes.…”

Designing and Constructing a High‐Temperature Molecular Ferroelectric by Anion and Cation Replacement in a Simple Crown Ether Clathrate

“…Most new molecular ferroelectrics usually come from the known ferroelectric system such as the derivativeo fR ochelle salt, some typical ABX 3 organic-inorganic hybridsa nd the organic amine crathrate etc. [14][15][16][17][18][19][20][21][22][23][24][25][26] How to precisely design and construct new family molecular ferroelectrics through the regulation of an existing molecule system is ag reat challenge. [1,7,[27][28][29] As is known, to be a ferroelectric it must satisfy some basic conditions, i) undergoes as olid reversible phase transition, ii)the ferroelectric should crystallize in the ten polar point groups1 ,m,2 ,mm2, 3, 3m, 4, 4mm, 6, 6mm, iii)exists as pontaneousp olarization which can be changed by the electric field.…”

“…[30] In general, al ot of molecular compounds usually undergo reversible phase transitions;h owever,t hey can't be ferroelectrics because they have high structural symmetry and cannot produce the polarization. [12,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] Therefore, our strategy is to keep the body structure of this non-ferroelectric phase transition molecular system with tiny local modifications, such molecular tailoring operation may retain the "driving force" of the body structure but reducei ts symmetry to introduce ad ipole moment into such molecular system, and then potentially construct novel ferroelectrics from such non-ferroelectricm olecular compound. In this way,X iong.…”

A carbonothioate‐based highly selective fluorescent probe with a large Stokes shift for detection of Hg2+

“…Many methodologies have been used to detect Hg 2+ , such as atomic absorption spectroscopy, electrochemical analysis, inductively coupled plasma mass spectrometry, optical probes and so on . Among these methods, optical probes might be the most attractive method due to their high selectivity, sensitivity, quick response and relatively low‐cost . Despite reports on Hg 2+ detection, some shortcomings still existed, such as longer response time, bad water solubility, a smaller Stokes shift, and poor selectivity (Table ) .…”