QCM virtual multisensor array for fuel discrimination and detection of gasoline adulteration

Speller, Nicholas C.; Siraj, Noureen; Vaughan, Stephanie R.; Speller, Lauren N.; Warner, Isiah M.

doi:10.1016/j.fuel.2017.02.066

Cited by 27 publications

(31 citation statements)

References 53 publications

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“…Whereas at a concentration of 5%, vast viscosity will bring about the layer to be hardly pulled and expanded by centrifugal force resulted from spin coater. Consequently, the formed layer is thicker and layer toughness is determined by the height of layer surface peak (Park & Lee, 2018;Speller, Siraj, Vaughan, Speller, & Warner, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…PS layer with 3% concentration has a smaller surface roughness ( Figure 5) caused by the effect of saturation PS deposited by a spin coating method, therefore PS layer with 3 % concentration immobilize lower BSA. BSA immobilize is trapping system immobilization (Masruroh et al, 2015;Speller et al, 2017). Because of smaller surface roughness, QCM/PS with 3% concentration has a smaller space for trapping BSA.…”

Section: Resultsmentioning

confidence: 99%

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Improvement QCM Quality By Polystyrene Coating and Bovine Serum Albumin as Immobilization Agent

Didik¹,

Yahdi²,

Masruroh

2019

JIPFAlBiruni

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Polystyrene (PS) thin film with various concentration of mass (1%, 3%, and 5%) has been deposited onto Quartz Crystal Microbalance (QCM) surface by a spin coating method. The purpose of this research is the improvement of Bovine Serum Albumin (BSA) immobilization into the QCM surface. The QCM resonance frequency has been investigated by means of Impedance Analyzer. The film thickness was calculated by the Sauerbrey equation. The surface roughness of the PS layer was observed by noncontact Topography Measuring System (TMS-1200). Calculation result using a Sauerbrey equation shows the thickness of the PS layer increases with the increasing PS concentration. The QCM/PS with 1% and 5% concentration of mass has rougher morphology and more frequency shifts caused by BSA injection compared to 3% concentration of PS

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Improvement QCM Quality By Polystyrene Coating and Bovine Serum Albumin as Immobilization Agent

Didik¹,

Yahdi²,

Masruroh

2019

JIPFAlBiruni

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“…When conductive films are used as sensor coatings, changes of both the acoustic wave and the electrical properties of the coating can be evaluated [90][91][92]. As both multi-sensor arrays and virtual sensor arrays turned out to be well suited for multi-analyte detection, both were combined to virtual multi-sensor arrays to further enhance the performance [93,94].…”

Section: Array Designsmentioning

confidence: 99%

“…This setup was successfully used to discriminate four different petroleum-based fuels and three gasoline grades. Furthermore, several grades of gasoline contamination by organic solvents (1% to 40% alcohol or aromatic hydrocarbon) could be estimated, including the nature of the contaminant [94]. A similar setup was applied to identify five citrus-scented odors.…”

Section: Acoustic Virtual Sensor Arraysmentioning

confidence: 99%

Bulk and Surface Acoustic Wave Sensor Arrays for Multi-Analyte Detection: A Review

Länge

2019

Sensors

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Bulk acoustic wave (BAW) and surface acoustic wave (SAW) sensor devices have successfully been used in a wide variety of gas sensing, liquid sensing, and biosensing applications. Devices include BAW sensors using thickness shear modes and SAW sensors using Rayleigh waves or horizontally polarized shear waves (HPSWs). Analyte specificity and selectivity of the sensors are determined by the sensor coatings. If a group of analytes is to be detected or if only selective coatings (i.e., coatings responding to more than one analyte) are available, the use of multi-sensor arrays is advantageous, as the evaluation of the resulting signal patterns allows qualitative and quantitative characterization of the sample. Virtual sensor arrays utilize only one sensor but combine it with enhanced signal evaluation methods or preceding sample separation, which results in similar results as obtained with multi-sensor arrays. Both array types have shown to be promising with regard to system integration and low costs. This review discusses principles and design considerations for acoustic multi-sensor and virtual sensor arrays and outlines the use of these arrays in multi-analyte detection applications, focusing mainly on developments of the past decade.

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“…The former has some advantages, such as the ability to record compound reaction and its speed through the process of immobilization [5], [6]. One of the prominent piezoelectric biosensors is QCM [7]- [11].…”

Section: Introductionmentioning

confidence: 99%

Characteristic of QCM Coated Polystyrene and ZnPc Morphology Studied by AFM and SEM

Didik¹

2020

Proceedings of the 2nd International Conference on Islam, Science and Technology (ICONIST 2019)

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In this work, Quartz Crystal Microbalance (QCM) has been coating by Polystyrene (PS) and Zinc Phthalocyanine (ZnPc). This study aimed to examine the effect of coating using PS and ZnPc on the immobilization ability of QCM towards Bovine Serum Albumin (BSA) biomolecule. Polystyrene was used to coat the surface of QCM using Spin Coater technique, while ZnPc was coated by means of vacuum evaporation method. Surface characterization was performed using Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM), the QCM impedance was measured by using Impedance Analyzer; while the changes on its frequency was gauged by using frequency counter. Drawing on the SEM results, it was unveiled that PS layer was coated densely, while ZnPc was coated with full of roughness. The roughness of the PS and ZnPc layer was 244 nm and 88.9 nm respectively.

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QCM virtual multisensor array for fuel discrimination and detection of gasoline adulteration

Cited by 27 publications

References 53 publications

Improvement QCM Quality By Polystyrene Coating and Bovine Serum Albumin as Immobilization Agent

Improvement QCM Quality By Polystyrene Coating and Bovine Serum Albumin as Immobilization Agent

Bulk and Surface Acoustic Wave Sensor Arrays for Multi-Analyte Detection: A Review

Characteristic of QCM Coated Polystyrene and ZnPc Morphology Studied by AFM and SEM

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