2017
DOI: 10.1016/j.jelechem.2017.06.038
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Ultrasensitive electrochemical detection of metal ions using dicarboethoxycalixarene-based sensor

Abstract: In this paper, we have reported an electrochemical detection of metal ions based on Calixarene-based sensor. In the sensing strategy, 3-aminopropylsilane (APTMS) was initially self-assembled on indium tin oxide (ITO) followed by functionalization of dicarboethoxycalix [4]arene (EtC4). The morphology and properties of electrodes were characterized by contact angle, atomic force microscopy, cyclic voltammetry, electrochemical impedance spectroscopy and X-ray photoelectron spectroscopy. The electrochemical respon… Show more

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Cited by 22 publications
(5 citation statements)
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“…There is an increase in peak current with an increase in the scan rate from 10 to 100 mV s −1 (figure 5a) and is proportional to the square root of the scan rate. This implies that the electrochemical processes are diffusion controlled [20]. The corresponding log current-log potential calibration plot in figure 5a is plainly visible, which indicates the activity of the MOF-177/cp electrode and it corresponds to a good linear relationship (R 2 = 0.92).…”
Section: Methodsmentioning
confidence: 81%
“…There is an increase in peak current with an increase in the scan rate from 10 to 100 mV s −1 (figure 5a) and is proportional to the square root of the scan rate. This implies that the electrochemical processes are diffusion controlled [20]. The corresponding log current-log potential calibration plot in figure 5a is plainly visible, which indicates the activity of the MOF-177/cp electrode and it corresponds to a good linear relationship (R 2 = 0.92).…”
Section: Methodsmentioning
confidence: 81%
“…Effect of accumulation time. The accumulation time was used to determine the target ion's surface saturation 15,19 . The accumulation time was less than one minute, which fulfilled the research objective of developing a rapid sensor.…”
Section: Effect Of Phmentioning
confidence: 99%
“…To allow for detection of other molecules, overcome hosts' low solubility and poor non-covalent interactions in aqueous environments, [16] several have resorted to attach hosts directly on electrodes. [1,[17][18][19][20][21][22][23][24][25][26] Guest binding in these sensing platforms has been transduced via: 1) direct guest electrolysis; [17][18][19][20][21][22] 2) addition of an external redox mediator; [1,23,24] or 3) a change in electrical double layer. [25,26] Some of those binding transduction mechanisms are, however, inherently nonreagentless, subject to fouling and prone to user errors while necessitating that the guest be electroactive further limiting the scope of these approaches.…”
Section: Introductionmentioning
confidence: 99%
“…While transformative, such electrodes are susceptible to non‐specific interactions at the electrode membrane [3,14,15] and are limited to solely measure ionic guests which can require sample preparation. To allow for detection of other molecules, overcome hosts’ low solubility and poor non‐covalent interactions in aqueous environments, [16] several have resorted to attach hosts directly on electrodes [1,17–26] . Guest binding in these sensing platforms has been transduced via: 1) direct guest electrolysis; [17–22] 2) addition of an external redox mediator; [1,23,24] or 3) a change in electrical double layer [25,26] .…”
Section: Introductionmentioning
confidence: 99%