Ferrocene self assembled monolayer as a redox mediator for triggering ion transfer across nanometer-sized membranes

Cuartero, María; Chai, Lijun; Zhang, Biaobiao; Crespo, Gastón A.

doi:10.1016/j.electacta.2019.05.091

Cited by 28 publications

(25 citation statements)

References 55 publications

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“…A simple drop casting the ionophore solution over 11‐MUA self assembled monolayer immobilized gold surface for 10 min. at room temperature signifies a fast, facile and low cost sensor fabrication for lithium as compared to earlier reports on EC sensing of lithium [13, 14, 21, 22]. Electrochemical behavior of modified gold sensor electrode was investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) to understand the interfacial host‐guest binding and its effect on charge transfer properties of redox probe in solution.…”

Section: Resultsmentioning

confidence: 99%

“…Alkali metal ions are known to form stable complexes with crown ethers due to the close fit of cation to the crown cavity and a nearly planar arrangement of oxygen atoms around the central cation [6]. Among 12‐, 13‐ and 14‐ crown ethers, dibenzyl‐14 crown‐4 has been the most preferred lithium ionophore used in fabrication of potentiometric ISEs [7–9], potentiometric devices with CNTs [10, 11] and voltammetric ISEs [12–14]. Electrochemical (EC) sensors giving a current response directly proportional to analyte concentration are more popular for detecting small changes in analyte concentration as compared to usual potentiometric ISE, which gives a potential response proportional to the logarithm of analyte activity [12].…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, different sensing platform and sensing strategies have been proposed for lithium ion recognition (Table 1). Newer voltammetric ISEs are based on detection of pulse amperometric current for a flow injection system with cation exchange column [12] and cyclic voltammetric peak potential shift for thin layer membranes [13, 14]. Changes in current‐voltage curves were monitored for nanofluidic diode configuration [15].…”

Section: Introductionmentioning

confidence: 99%

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Ready to Use Electrochemical Sensor Strip for Point‐of‐Care Monitoring of Serum Lithium

Singh

Kumbhat

2020

Electroanalysis

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Looking to the toxicity quotient of lithium for human well being, a simple electrochemical sensor based on self assembled monolayer with physically adsorbed 6,6’‐dibenzyl‐14‐crown‐4 ether onto a screen printed gold sensor electrode is proposed, where changein voltammetric current signal of redox probe as a mediator, is the basis of transducer. The sensor is responsive to 0.1 mM to 2.5 mM lithium and selective over potassium, calcium and large excess of sodium in solution. The system is promising for real‐time selective recognition of lithium in a label free assay and for point‐of‐care lithium level monitoring in clinical and biomedical fields.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ready to Use Electrochemical Sensor Strip for Point‐of‐Care Monitoring of Serum Lithium

Singh

Kumbhat

2020

Electroanalysis

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“…Ferrocene is more electroactive, so ferrocene/ferrocenium redox couple can easily be monitored by voltammetric measurements. A variety of ferrocene‐based sensors including amides and triazoles, boronic esters were performed for the detection of hydrogenphosphate, chiral carboxylate, peroxides, benzoate, and fluoride anions . In addition, ferrocene based optoelectronic devices are the most popular research areas last decades .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ferrocene Based Naphthoquinones and its Application as Novel Non‐enzymatic Hydrogen Peroxide

et al. 2020

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At present, a highly sensitive hydrogen peroxide (H2O2) sensor is fabricated by ferrocene based naphthaquinone derivatives as 2,3‐Diferrocenyl‐1,4‐naphthoquinone and 2‐bromo‐3‐ferrocenyl‐1,4‐naphthoquinone. These ferrocene based naphthaquinone derivatives are characterized by H‐NMR and C‐NMR. The electrochemical properties of these ferrocene based naphthaquinone are investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) on modified glassy carbon electrode (GCE). The modified electrode with ferrocene based naphthaquinone derivatives exhibits an improved voltammetric response to the H2O2 redox reaction. 2‐bromo‐3‐ferrocenyl‐1,4‐naphthoquinone show excellent non‐enzymatic sensing ability towards H2O2 response with a detection limitation of 2.7 μmol/L a wide detection range from 10 μM to 400 μM in H2O2 detection. The sensor also exhibits short response time (1 s) and good sensitivity of 71.4 μA mM−1 cm−2 and stability. Furthermore, the DPV method exhibited very high sensitivity (18999 μA mM−1 cm−2) and low detection limit (0.66 μM) compared to the CA method. Ferrocene based naphthaquinone derivative based sensors have a lower cost and high stability. Thus, this novel non‐enzyme sensor has potential application in H2O2 detection.

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“…In future work, it might be possible to design a new, dynamic type of monolayer coating which provides tactile stimuli in addition to its role as a protectant. For example, monolayers can be used to transport charge, [81] undergo photoinduced isomerization, [82] participate in redox reactions, [83] and acquire charge by contact electrification. [84] Given the sensitivity of human participants to minute forces generated at surfaces, it is possible that exploitation of some of these molecular phenomena may lead to haptic effects unavailable to bulk materials.…”

mentioning

confidence: 99%

Organic Haptics: Intersection of Materials Chemistry and Tactile Perception

Lipomi

Dhong

Carpenter

et al. 2019

Adv Funct Materials

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The goal of the field of haptics is to create technologies that manipulate the sense of touch. In virtual and augmented reality, haptic devices are for touch what loudspeakers and RGB displays are for hearing and vision. Haptic systems that utilize micromotors or other miniaturized mechanical devices (e.g., for vibration and pneumatic actuation) produce interesting effects, but are quite far from reproducing the feeling of real materials. They are especially deficient in recapitulating surface This article is protected by copyright. All rights reserved. 2 properties: fine texture, friction, viscoelasticity, tack, and softness. The central argument of this progress report is that in order to reproduce the feel of everyday objects, molecular control must be established over the properties of materials and ultimately the design of materials which can change these properties in real time. Stimuli-responsive organic materials, such as polymers and composites, are a class of materials which can change their oxidation state, conductivity, shape, and rheological properties, and thus might be useful in future haptic technologies. Moreover, the use of such materials in research on tactile perception could help elucidate the limits of human tactile sensitivity. The work described represents the beginnings of this new area of inquiry, in which the defining approach is the marriage of materials science and psychology.

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Ferrocene self assembled monolayer as a redox mediator for triggering ion transfer across nanometer-sized membranes

Cited by 28 publications

References 55 publications

Ready to Use Electrochemical Sensor Strip for Point‐of‐Care Monitoring of Serum Lithium

Ready to Use Electrochemical Sensor Strip for Point‐of‐Care Monitoring of Serum Lithium

Synthesis of Ferrocene Based Naphthoquinones and its Application as Novel Non‐enzymatic Hydrogen Peroxide

Organic Haptics: Intersection of Materials Chemistry and Tactile Perception

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