Development of a microplate-format direct optode sensor for ultra-high-throughput environmental and wastewater monitoring of Pb2+

Golcs, Ádám; Dargó, Gergő; Balogh, György Tibor; Huszthy, Péter; Tóth, Tünde

doi:10.1016/j.aca.2021.338586

Cited by 8 publications

(7 citation statements)

References 36 publications

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“…A new bisacridono-macrocycle was synthesized, investigated as a cation-selective optical sensor molecule and compared to its monoacridono-analogues with similar size of macrocyclic cavity. Despite the increased structural rigidity caused by the introduction of the second heteroaromatic unit, a reduced selectivity was observed compared to the previously reported highly Pb 2+selective monoacridono-18-crown-6 ethers [20,22,23]. The bisacridono-host is tending to coordinate most of the soft electrophilic cations regardless of their ionic radius, especially those with multiple charges.…”

Section: Discussionmentioning

confidence: 70%

“…In order to study the contribution of a second heterocyclic subunit to improving selectivity and photophysical properties, we have synthesized a bisacridono-macrocycle as an analogue of the previously reported monoacridono-crown ethers, which showed an excellent fluorescence and high selectivity toward Pb 2+ [20,22,23] and also as an analogue of 3 with a smaller cavity size and without N-methyl groups. The applicability of the new bisacridino-macrocycle as an optochemical sensor molecule was critically discussed.…”

Section: Introductionmentioning

confidence: 99%

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Two Acridone Units in One Crown Ether

Vezse,

Ster,

Golcs

et al. 2023

Period. Polytech. Chem. Eng.

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We present here a critical overview on the effects of the second heterocyclic subunit in a bisacridino-crown ether by the discussion of its role in modulating optochemical behavior and preference in molecular recognition. The preparation of a new bisacridono-crown ether is presented including synthetic difficulties, and its fluorescence properties and selectivity in formation of inclusion complexes with various cations are evaluated in the light of reported analogues.

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Section: Discussionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Two Acridone Units in One Crown Ether

Vezse,

Ster,

Golcs

et al. 2023

Period. Polytech. Chem. Eng.

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“…Resonators. MEMS/NEMS resonators have been developed as pivotal components for sensing [1][2][3] and communication [4][5][6][7][8] applications, where increasing the sensitivity and resolution of devices is a decisive issue. Micro/nanoplates [9][10][11][12][13] are one of the paramount structures used extensively as micro/nanoresonators due to the advantages of their reduced dimensions, lower weight, surplus sensitivity, enhanced reliability, and elevated S/V ratios [14][15][16].…”

Section: Implications Of Mems/nems-based Rectangular Platementioning

confidence: 99%

Thermoelastic Damping Limited Quality Factor Enhancement and Energy Dissipation Analysis of Rectangular Plate Resonators Using Nonclassical Elasticity Theory

Resmi

Babu

Baiju

2022

Advances in Materials Science and Engineering

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Among the different energy dissipation mechanisms, thermoelastic damping plays a vital role and needs to be alleviated in vibrating resonators to mitigate parameters by improving the thermoelastic damping limited quality factor, QTED. The maximum energy dissipation is also interrelated with the critical dimension h c of the plates, and by optimizing the dimensions, the peaking of energy dissipation can be diminished. As the size of the devices is scaled down, classical continuum theories become incompetent to explain the size-effect related mechanical nature at the micron and submicron levels, and, as a result, nonclassical continuum theories have been pioneered with the inception of internal length scale parameters. In this work, an analysis of isotropic rectangular microplates based on the Kirchhoff model and a higher order theory like Modified Couple Stress Theory is utilized to study size-dependent thermoelastic damping and its impact on the quality factor and critical dimensions. The Hamilton principle is adapted to derive the governing equations of motion, and the coupled heat conduction equation is employed to formulate the thermoelastic damping limited quality factor of the plates. Five different structural materials (PolySi, diamond, Si, GaAs, and SiC) are used for optimizing QTED and hc, which depends on two material performance index parameters: the thermoelastic damping index (TDI) and the material thermal diffusion length, l T . According to this work, the maximum QTED is attained for PolySi with the lowest TDI, and hcmax is obtained for Si with the maximum l T . The impacts of the dimensionless length-scale parameters (l/h), vibration modes, and boundary conditions (clamped-clamped and simply supported) on QTED and hc are also investigated. From the current analysis, QTED can be further enhanced by selecting higher vibration modes and clamped-clamped boundary conditions. QTED can be maximized by fixing the internal length scale parameter (l) and making the thickness of the beam equal to l. The analytical study is numerically simulated by using MATLAB 2015 software. Prior knowledge of QTED and hc will help designers to produce high-performance and low-loss resonators for the futuristic technological applications.

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“…3 Pb is inevitably released into the environment through human activities, such as pollution from industrial production and heavy traffic activities. 4 Although countries are constantly tightening their environmental regulations and developing waste management technologies in parallel, Pb pollution will continue to be a major problem as a large amount of Pb still circulates in soil and water. 5 The presence of these toxic elements in water resources threatens public health.…”

Section: Introductionmentioning

confidence: 99%

“… 4 Although countries are constantly tightening their environmental regulations and developing waste management technologies in parallel, Pb pollution will continue to be a major problem as a large amount of Pb still circulates in soil and water. 5 The presence of these toxic elements in water resources threatens public health. Nowadays, access to clean water resources has become a global challenge.…”

Section: Introductionmentioning

confidence: 99%

Development of a New Sensitive Method for Lead Determination by Platinum-Coated Tungsten-Coil Hydride Generation Atomic Absorption Spectrometry

Atasoy

2023

ACS Omega

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A novel very sensitive and rapid analytical method was improved where gaseous lead formed was transported to and trapped on an externally heated platinum-coated tungsten-coil atom trap for in situ preconcentration. The analytical performance of the developed method with the graphite furnace atomic absorption spectrometry (GFAAS) method was compared. All critical parameters affecting the performance of both methods were optimized. The limit of quantitation (LOQ) was found as 11.0 ng L −1 and the precision was 2.3% in terms of percent relative standard deviation (RSD%). Characteristic concentration (Co) of the developed trap method was indicating a 32.5-fold enhancement in sensitivity compared to the GFAAS method. In order to investigate the surface morphology of the W-coil, scanning electron microscope−energy-dispersive X-ray (SEM-EDS) analyzes were performed. The accuracy of the trap method was tested by certified reference materials: NIST SRM 1640a (the elements in natural water) and DOLT:5 (dogfish liver). Interferences from other hydride-forming elements were investigated. Application of the trap method was demonstrated by the analysis of some drinking water and fish tissue samples. The t test was applied to drinking water samples, and the results indicated that there was no statistically significant error.

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Development of a microplate-format direct optode sensor for ultra-high-throughput environmental and wastewater monitoring of Pb2+

Cited by 8 publications

References 36 publications

Two Acridone Units in One Crown Ether

Two Acridone Units in One Crown Ether

Thermoelastic Damping Limited Quality Factor Enhancement and Energy Dissipation Analysis of Rectangular Plate Resonators Using Nonclassical Elasticity Theory

Development of a New Sensitive Method for Lead Determination by Platinum-Coated Tungsten-Coil Hydride Generation Atomic Absorption Spectrometry

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