A novel benzothiazole based azocalix[4]arene as a highly selective chromogenic chemosensor for Hg2+ ion: A rapid test application in aqueous environment

Solid-contact Hg(II)-selective electrode based on a carbon-epoxy composite containing a new dithiophosphate-based ionophore

“…The applicable pH interval, lower detection limit, and potentiometric selectivity coefficients of the sensor, strongly suggest that the sensor propounded is comparable with those of other methods used for the determination of this ion, giving additional advantages with respect to other sensors proposed in the literature [35,[37][38][39]. The sensor based on PenDTF exhibits different advantages like in the synthesis cost of the ionophore, in the design of the renewable inner solid contact that can be used for various experiments after light abrading and the elimination of the inner reference solution that turns the sensor maintenance-free, thus favoring safe storage.…”

“…Other comparative advantage of this electrode as referred to those based on polymeric membranes, is that if the latter were to suffer some damage or were contaminated, they would not be regenerated easily, whereas that reported here enables proper regeneration of the sensor's active sites on the surface, that may have gotten inactive or blocked, merely by lightly grinding away the surface in order to obtain a new set of fully available active sites. The ionophore used in this work is approximately 60 times less expensive to that of obtained as compared to the polymeric membranes of some of the sensors referred here [36,[38][39][40], which have the added disadvantage of not showing better analytic parameters.…”

“…Ref. [39] reports a chromosensor that is approximately 590 times more expensive to obtain, with respect to the recognition element used in the sensor reported here.…”

Conductivity Comparison of Calix[8]arene-MWCNTs Through Spin Coating Technique

“…These conformations have high selective binding properties toward certain ionic or molecular substance (Chen et al 2000;Yang et al 2015) while some even showed chromogenic sensing properties (Bingol et al 2010;Tabakci & Yilmaz 2014).…”

Synthesis and electrochemical properties of a novel calix[4]arene derivative for facilitated transfer of alkali metal ions across water/1,2-dichloroethane micro-interface

“…In addition to this influence, the nature of the groups attached, the number of donor atoms and their conformations are the other important effects that influence complexation properties of calixarenes. The easy and selective derivatisations from the upper or the lower rim and from both of the two rims have much attention on the host -guest recognition with wide applicability, such as in complexation chemistry (6), molecular catalysis (7), charge transfer (8) and chemical sensors (9,10).…”