Ultrasensitive and Selective Detection of Dopamine Using Cobalt-Phthalocyanine Nanopillar-Based Surface Acoustic Wave Sensor

Fourati, Najla; Seydou, Mahamadou; Zerrouki, Chouki; Singh, Ajay; Samanta, Soumen; Maurel, François; Aswal, D. K.; Chehimi, Mohamed M.

doi:10.1021/am506403f

Cited by 33 publications

(18 citation statements)

References 65 publications

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“…Therefore, determining the leakage of ammonia in ambient environment becomes critical. To achieve this goal, various types of ammonia sensors, such as metal oxide semiconductor sensors, electrochemical sensors and surface acoustic wave (SAW) sensors were developed, [13][14][15][16][17]. Benefiting from the significant development of RF and crystal technologies, surface acoustic wave techniques (SAWTs) are playing important roles in our daily life [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

NH3 sensing property and mechanisms of quartz surface acoustic wave sensors deposited with SiO2, TiO2, and SiO2-TiO2 composite films

Tang

et al. 2018

Sensors and Actuators B: Chemical

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Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University's research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may differ from the final, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher's website (a subscription may be required.) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. and SiO2-TiO2 films showed positive frequency shifts, whereas SiO2 film exhibits a negative frequency shift to NH3 gas. it is believed that the negative frequency shift was mainly caused by the increase of NH3 mass loading on the sensitive film while the positive frequency shift was associated to the condensation of the hydroxyl groups (-OH) on the film making the film stiffer and lighter, when exposed to NH3 gas. It demonstrated that humidity played a significant factor on the sensing performance. Comparative studies exhibited that the sensor based on the composite SiO2-TiO2 film had a much better sensitivity to NH3 at a low concentration level (1 ppm) with a response of 2 KHz, and also showed fast response and recovery, excellent selectivity, stability and reproducibility. Accepted Manuscript

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Section: Introductionmentioning

confidence: 99%

NH3 sensing property and mechanisms of quartz surface acoustic wave sensors deposited with SiO2, TiO2, and SiO2-TiO2 composite films

Tang

et al. 2018

Sensors and Actuators B: Chemical

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“…The level of receptor activation strongly depends on the dose administrated. The need for its accurate detection at physiological levels is largely the reason for the development of various techniques, ranging from electrochemistry [ 14 ], chromatography [ 15 ], and gravimetry [ 16 , 17 ], to optical spectroscopy [ 5 , 6 , 7 , 8 ]. From a chemical perspective, its ionizable functional groups—an ethyl ammonium, which acts as a proton acceptor, and two phenolic hydroxyls, which act as donors—can participate in DA molecular bonding.…”

Section: Introductionmentioning

confidence: 99%

“…From a chemical perspective, its ionizable functional groups—an ethyl ammonium, which acts as a proton acceptor, and two phenolic hydroxyls, which act as donors—can participate in DA molecular bonding. At physiological levels, the dominant presence of ionized DA has been reported from both experimental [ 14 , 15 , 18 ] and theoretical [ 16 , 17 , 19 ] results.…”

Section: Introductionmentioning

confidence: 99%

Raman Computational and Experimental Studies of Dopamine Detection

et al. 2017

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A combined theoretical and experimental analysis of dopamine (DA) is presented in this work with the objective of achieving more accurate detection and monitoring of this neurotransmitter at very low concentrations, specific to physiological levels. Surface-enhanced Raman spectroscopy on silver nanoparticles was employed for recording DA concentrations as low as 10−11 molar. Quantum chemical density functional calculations were carried out using Gaussian-09 analytical suite software. Relatively good agreement between the simulated and experimentally determined results indicates the presence of different DA molecular forms, such as uncharged DA±, anionic DA−, and dopaminequinone. Disappearance of the strongest bands of dopamine around 750 cm−1 and 790 cm−1, which suggests its adsorption onto the metallic surface, is not only consistent with all of these DA configurations, but also provides additional information about the analyte’s redox process and voltammetric detection. On the other hand, occurrence of the abovementioned Raman lines could indicate the formation of multilayers of DA or its presence in a cationic DA+ form. Thus, through coordinated experiment and theory, valuable insights into changes observed in the vibrational signatures of this important neurotransmitter can be achieved for a better understanding of its detection at physiological levels, which is crucial if further optovoltammetric medical device development is envisioned.

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“…The developed gravimetric sensor consists of dual delay lines fabricated on 36° rot lithium tantalate piezoelectric substrates. The sensitive area and interdigital transducers (IDTs) were realized by evaporation of (20/80) nm Cr/Au layers [3]. The IDTs were patterned with a periodicity of λ = 40 µm which corresponds to an operating frequency of about 104 MHz.…”

Section: Instrumentationmentioning

confidence: 99%

Design of Surface Acoustic Wave Sensors Functionalized with Bisphenol S Based Molecules for Lead Ions Detection

et al. 2018

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This study concerns the design of surface acoustic wave sensors functionalized with bisphenol S based molecules for lead ions detection. (4-hydroxyphenyl, 4′-benzyloxyphenyl) sulfone (M1), (4-hydroxyphenyl,4′-anthrylmethyloxyphenyl) sulfone (M2) and (4,4′-bis (anthrylmethyloxyphenyl)) sulfone (M3) were synthesized and then drop-coated on the SAWs sensing areas. Gravimetric results indicate that the limit of detection of the three sensors is in the picomolar range and that the M3/SAW sensor has the highest affinity towards lead ions compared to M1/SAW and M2/SAW. Density functional theory (DFT) calculations were investigated to support experimental results and to understand the nature of interactions involved between lead ions and the three synthetized molecules.

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Ultrasensitive and Selective Detection of Dopamine Using Cobalt-Phthalocyanine Nanopillar-Based Surface Acoustic Wave Sensor

Cited by 33 publications

References 65 publications

NH3 sensing property and mechanisms of quartz surface acoustic wave sensors deposited with SiO2, TiO2, and SiO2-TiO2 composite films

NH3 sensing property and mechanisms of quartz surface acoustic wave sensors deposited with SiO2, TiO2, and SiO2-TiO2 composite films

Raman Computational and Experimental Studies of Dopamine Detection

Design of Surface Acoustic Wave Sensors Functionalized with Bisphenol S Based Molecules for Lead Ions Detection

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