Na<sup>+</sup> and K<sup>+</sup> Implanted Membranes for Micro-Sensors Development

Nouira, W.; Haddad, Raid E.; Barhoumi, Houcine; Maaref, Abderrazak; Bausells, Joan; Bessueille, F.; Leonard, DN; Jaffrézic‐Renault, Nicole; Errachid, Abdelhamid

doi:10.1166/sl.2009.1132

Cited by 6 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, multiple membranes sensitive to various ions can be fabricated on the wafer level using multiple implants and different photolithographic masks. The ion-implantation technique was applied to develop Na +--and K + -sensitive EIS sensors by implanting Na + or K + ions into the oxidized silicon nitride through an Al buffer layer [74,75]. Although, these sensors demonstrate good sensitivity (52 mV/pNa and 49 mV/pK [75]), the response to interfering ions and pH was non-negligible, evidencing a poor selectivity of implanted ion-sensitive layers.…”

Section: Ion-sensitive Eis Sensorsmentioning

confidence: 99%

“…The ion-implantation technique was applied to develop Na +--and K + -sensitive EIS sensors by implanting Na + or K + ions into the oxidized silicon nitride through an Al buffer layer [74,75]. Although, these sensors demonstrate good sensitivity (52 mV/pNa and 49 mV/pK [75]), the response to interfering ions and pH was non-negligible, evidencing a poor selectivity of implanted ion-sensitive layers. Finally, several types of EIS sensors sensitive towards Ni 2+ [76], Cu 2+ [77], and Hg 2+ [78] were realized via the deposition of ion-recognition molecules (macrocyclic compounds such as calixarenes [79]) directly onto the gate surface.…”

Section: Ion-sensitive Eis Sensorsmentioning

confidence: 99%

See 1 more Smart Citation

Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report

Poghossian¹,

Schöning

2020

Sensors

View full text Add to dashboard Cite

Electrolyte-insulator-semiconductor (EIS) field-effect sensors belong to a new generation of electronic chips for biochemical sensing, enabling a direct electronic readout. The review gives an overview on recent advances and current trends in the research and development of chemical sensors and biosensors based on the capacitive field-effect EIS structure—the simplest field-effect device, which represents a biochemically sensitive capacitor. Fundamental concepts, physicochemical phenomena underlying the transduction mechanism and application of capacitive EIS sensors for the detection of pH, ion concentrations, and enzymatic reactions, as well as the label-free detection of charged molecules (nucleic acids, proteins, and polyelectrolytes) and nanoparticles, are presented and discussed.

show abstract

Section: Ion-sensitive Eis Sensorsmentioning

confidence: 99%

Section: Ion-sensitive Eis Sensorsmentioning

confidence: 99%

Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report

Poghossian¹,

Schöning

2020

Sensors

View full text Add to dashboard Cite

show abstract

“…In the literature, there are many examples of potassium sensors that have been developed, which are based on different technologies, including: flame atomic absorption spectrometry , ion chromatography , surface Plasmon resonance , and electrochemical methods . These latter play an important role in the development of biosensors due to their fast response, high sensitivity, simple instrumentation, low production cost, and portability.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Capacitive K⁺ EMIS Chemical Sensor Based on the Dibromoaza[7]helicene as an Ionophore for Potassium Ions Detection

et al. 2016

View full text Add to dashboard Cite

A K+‐sensitive capacitive electrolyte‐membrane‐insulator‐semiconductor (EMIS) based on a novel dibromoaza[7]helicene ionophore has been developed. An ion‐sensitive membrane based on polyvinylchloride (PVC) doped with the ionophore was deposited on the Si3N4/SiO2/Si‐p/Cu‐Al transducer. The properties of the K+‐EMIS chemical sensor were investigated by electrochemical impedance spectroscopy (EIS). All the developed devices upon being tested have shown good sensitivity and linearity responses within the range 10−6 M to 10−1 M of potassium activity, with good selectivity over a wide variety of other cations (Na+, Li+, Cu2+, Ca2+, and Mg2+). To our knowledge, this is the first time that a capacitive field‐effect sensor has been fabricated using helicene as a carrier for K+‐detection, combined with the structure: Si3N4/SiO2/Si‐p/Cu‐Al as a transducer.

show abstract

“…Metal-ion-responsive chemosensors have attracted increasing interest in the past decade due to their environmental and biological relevance. − Among them, the quantitative probing of K + ions is quite crucial due to their active roles of chemical signal transduction in biological systems. Compared to the design of typical colorimetric and fluorometric chemosensors of heavy metal ions (e.g., Cu 2+ , Hg 2+ , and Zn 2+ , etc.…”

Section: Introductionmentioning

confidence: 99%

FRET-Derived Ratiometric Fluorescent K⁺ Sensors Fabricated from Thermoresponsive Poly(N-isopropylacrylamide) Microgels Labeled with Crown Ether Moieties

Yin

Wang

et al. 2010

J. Phys. Chem. B

View full text Add to dashboard Cite

We report on the fabrication of ratiometric fluorescent K(+) sensors based on thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) microgels covalently incorporated with K(+)-recognizing 4-acrylamidobenzo-18-crown-6 residues (B18C6Am), fluorescence resonance energy transfer (FRET) donor dyes, 4-(2-acryloyloxyethylamino)-7-nitro-2,1,3-benzoxadiazole (NBDAE), and rhodamine-B-based FRET acceptors (RhBEA) by utilizing K(+)-induced changes in microgel volume phase transition (VPT) temperatures. P(NIPAM-B18C6Am-NBDAE-RhBEA) microgels were synthesized via the free radical emulsion copolymerization technique. The spatial proximity between FRET pairs (NBDAE and RhBEA dyes) within microgels can be tuned via thermoinduced collapse and swelling of thermoresponsive microgels above and below VPT temperatures, leading to the facile modulation of FRET efficiencies. B18C6Am moieties within P(NIPAM-B18C6Am-NBDAE-RhBEA) microgels can preferentially capture K(+) via the formation of 1:1 molecular recognition complexes, resulting in the enhancement of microgel hydrophilicity and elevated VPT temperatures. Thus, the gradual addition of K(+) into microgel dispersions at intermediate temperatures, i.e., between VPT temperatures of P(NIPAM-B18C6Am-NBDAE-RhBEA) microgels in the absence and presence of K(+) ions, respectively, can directly lead to the reswelling of initially collapsed microgels. This process can be monitored by changes in fluorescence intensity ratios, i.e., FRET efficiencies. The presence of FRET pairs within P(NIPAM-B18C6Am-NBDAE-RhBEA) microgels allows for the facile in situ monitoring of thermoinduced and K(+)-induced VPTs of dually responsive microgels. The response time for fluorescent K(+)-sensing was further investigated via the stopped-flow technique, which reveals that the process completes within ∼4 s. This work represents the first report of thermoresponsive microgel-based ratiometric fluorescent sensors for both K(+) ions and temperatures.

show abstract

Na⁺ and K⁺ Implanted Membranes for Micro-Sensors Development

Cited by 6 publications

References 0 publications

Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report

Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report

Electrochemical Capacitive K⁺ EMIS Chemical Sensor Based on the Dibromoaza[7]helicene as an Ionophore for Potassium Ions Detection

FRET-Derived Ratiometric Fluorescent K⁺ Sensors Fabricated from Thermoresponsive Poly(N-isopropylacrylamide) Microgels Labeled with Crown Ether Moieties

Contact Info

Product

Resources

About

Na+ and K+ Implanted Membranes for Micro-Sensors Development

Cited by 6 publications

References 0 publications

Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report

Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report

Electrochemical Capacitive K+ EMIS Chemical Sensor Based on the Dibromoaza[7]helicene as an Ionophore for Potassium Ions Detection

FRET-Derived Ratiometric Fluorescent K+ Sensors Fabricated from Thermoresponsive Poly(N-isopropylacrylamide) Microgels Labeled with Crown Ether Moieties

Contact Info

Product

Resources

About

Na⁺ and K⁺ Implanted Membranes for Micro-Sensors Development

Electrochemical Capacitive K⁺ EMIS Chemical Sensor Based on the Dibromoaza[7]helicene as an Ionophore for Potassium Ions Detection

FRET-Derived Ratiometric Fluorescent K⁺ Sensors Fabricated from Thermoresponsive Poly(N-isopropylacrylamide) Microgels Labeled with Crown Ether Moieties