Development of a low-cost portable aroma sensing system for identifying artificially ripened mango

Ghatak, Barnali; Banerjee, Sanjoy; Ali, Sk Babar; Das, Nityananda; Tudu, Bipan; Pramanik, Panchanan; Mukherji, Soumyo; Bandyopadhyay, Rajib

doi:10.1016/j.sna.2021.112964

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…In 1995, Piletsky et al first achieved sensing herbicides using a MIP-based sensor [ 94 ]. Recently, sensing flavonoids using MIP-based sensors has also been reported [ 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 ].…”

Section: Applicationsmentioning

confidence: 99%

“…However, the present electrochemical MIP sensors for detection of flavonoids are mainly GCE and ITO electrodes, and there are much more advanced electrodes that can be selected for electrochemical sensing of flavonoids in the future. Moreover, some other MIP-based sensors (e.g., quartz crystal microbalance [ 103 ] and Liquefied Petroleum Gas sensors [ 104 ]) can also be introduced in the detection of flavonoids.…”

Section: Applicationsmentioning

confidence: 99%

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Preparation and Application of Molecularly Imprinted Polymers for Flavonoids: Review and Perspective

Yang

Shen

2022

Molecules

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The separation and detection of flavonoids from various natural products have attracted increasing attention in the field of natural product research and development. Depending on the high specificity of molecularly imprinted polymers (MIPs), MIPs are proposed as efficient adsorbents for the selective extraction and separation of flavonoids from complex samples. At present, a comprehensive review article to summarize the separation and purification of flavonoids using molecular imprinting, and the employment of MIP-based sensors for the detection of flavonoids is still lacking. Here, we reviewed the general preparation methods of MIPs towards flavonoids, including bulk polymerization, precipitation polymerization, surface imprinting and emulsion polymerization. Additionally, a variety of applications of MIPs towards flavonoids are summarized, such as the different forms of MIP-based solid phase extraction (SPE) for the separation of flavonoids, and the MIP-based sensors for the detection of flavonoids. Finally, we discussed the advantages and disadvantages of the current synthetic methods for preparing MIPs of flavonoids and prospected the approaches for detecting flavonoids in the future. The purpose of this review is to provide helpful suggestions for the novel preparation methods of MIPs for the extraction of flavonoids and emerging applications of MIPs for the detection of flavonoids from natural products and biological samples.

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Section: Applicationsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

Preparation and Application of Molecularly Imprinted Polymers for Flavonoids: Review and Perspective

Yang

Shen

2022

Molecules

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“…The piezoelectric, mass-sensitive, or acoustic wave tools present label-free and quick detection of molecules due to mass, which is the main feature of each molecule. These transducers include (i) the surface acoustic wave (SAW) devices [41,42]; (ii) the bulk acoustic wave (BAW) devices and quartz crystal microbalance (QCM) devices [43][44][45][46]; and (iii) the shear transverse wave (STW) devices [47], which are constantly combining with various bioreceptor elements for biomedical diagnosis and molecular recognition [48]. Quartz crystal microbalance biosensors are needed for the determination of a broad variety of biomolecules.…”

Section: Biosensor Devicesmentioning

confidence: 99%

Recent Advances in Quartz Crystal Microbalance Biosensors Based on the Molecular Imprinting Technique for Disease-Related Biomarkers

2022

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The molecular imprinting technique is a quickly developing field of interest regarding the synthesis of artificial recognition elements that enable the specific determination of target molecule/analyte from a matrix. Recently, these smart materials can be successfully applied to biomolecule detection in biomimetic biosensors. These biosensors contain a biorecognition element (a bioreceptor) and a transducer, like their biosensor analogs. Here, the basic difference is that molecular imprinting-based biosensors use a synthetic recognition element. Molecular imprinting polymers used as the artificial recognition elements in biosensor platforms are complementary in shape, size, specific binding sites, and functionality to their template analytes. Recent progress in biomolecular recognition has supplied extra diagnostic and treatment methods for various diseases. Cost-effective, more robust, and high-throughput assays are needed for monitoring biomarkers in clinical settings. Quartz crystal microbalance (QCM) biosensors are promising tools for the real-time and quick detection of biomolecules in the past two decades A quick, simple-to-use, and cheap biomarkers detection technology based on biosensors has been developed. This critical review presents current applications in molecular imprinting-based quartz crystal microbalance biosensors for the quantification of biomarkers for disease monitoring and diagnostic results.

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“…These systems are usually based on microcontrollers and/or Field Programmable Gate Arrays (FPGAs) and are powered by batteries [1] or scavenge energy from natural sources [2]. The sensing applications cover a wide range of fields, such as environmental monitoring [3][4][5], food screening for quality analysis and safety [6][7][8], biological measurements for human body composition determination and health monitoring [9][10][11], bacterial detection [12][13][14], chemical analysis [15][16][17], health monitoring, and data collection on civil infrastructures [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Efficient and Accurate Analog Voltage Measurement Using a Direct Sensor-to-Digital Port Interface for Microcontrollers and Field-Programmable Gate Arrays

Grossi

2024

Sensors

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Portable sensor systems are usually based on microcontrollers and/or Field-Programmable Gate Arrays (FPGAs) that are interfaced with sensors by means of an Analog-to-Digital converter (ADC), either integrated in the computing device or external. An alternative solution is based on the direct connection of the sensors to the digital input port of the microcontroller or FPGA. This solution is particularly interesting in the case of devices not integrating an internal ADC or featuring a small number of ADC channels. In this paper, a technique is presented to directly interface sensors with analog voltage output to the digital input port of a microcontroller or FPGA. The proposed method requires only a few passive components and is based on the measurements of the duty cycle of a digital square-wave signal. This technique was investigated by means of circuit simulations using LTSpice and was implemented in a commercial low-cost FPGA device (Gowin GW1NR-9). The duty cycle of the square-wave signal features a good linear correlation with the analog voltage to be measured. Thus, a look-up table to map the analog voltage values to the measured duty cycle is not required with benefits in terms of memory occupation. The experimental results on the FPGA device have shown that the analog voltage can be measured with a maximum accuracy of 1.09 mV and a sampling rate of 9.75 Hz. The sampling rate can be increased to 31.35 Hz and 128.31 Hz with an accuracy of 1.61 mV and 2.68 mV, respectively.

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Development of a low-cost portable aroma sensing system for identifying artificially ripened mango

Cited by 9 publications

References 19 publications

Preparation and Application of Molecularly Imprinted Polymers for Flavonoids: Review and Perspective

Preparation and Application of Molecularly Imprinted Polymers for Flavonoids: Review and Perspective

Recent Advances in Quartz Crystal Microbalance Biosensors Based on the Molecular Imprinting Technique for Disease-Related Biomarkers

Efficient and Accurate Analog Voltage Measurement Using a Direct Sensor-to-Digital Port Interface for Microcontrollers and Field-Programmable Gate Arrays

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