Recent advances in nanomaterial-based optical biosensors for food safety applications: Ochratoxin-A detection, as case study

Meira, Diana I.; Barbosa, Ana I.; Borges, Joel Nuno Pinto; Reis, Rui L.; Correlo, Vítor M.; Vaz, F.

doi:10.1080/10408398.2023.2168248

Cited by 28 publications

(6 citation statements)

References 155 publications

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“… 41 They also have applications in environmental monitoring, detecting pollutants, toxins, and harmful chemicals with great accuracy. 42 In summary, nanosensors offer a powerful tool in sensing technology, making them ideal for various industries, including healthcare and environmental monitoring.…”

Section: Nanosensorsmentioning

confidence: 99%

Advances in nano sensors for monitoring and optimal performance enhancement in photovoltaic cells

Dhahi,

Yousif Dafhalla,

Tayfour

et al. 2024

iScience

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Section: Nanosensorsmentioning

confidence: 99%

Advances in nano sensors for monitoring and optimal performance enhancement in photovoltaic cells

Dhahi,

Yousif Dafhalla,

Tayfour

et al. 2024

iScience

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“…-Electrochemical-based on the variation of electrochemical properties [46]; -Optical-based on the variation of optical properties [47]; -Thermal biosensors-based on thermal energy variation [48]; -Mass sensitive biosensors-based on mass variation [49]; -Acoustic biosensors-the target analyte is detected through the induced variations in the frequency, velocity, or amplitude of the acoustic waves generated by piezoelectric materials [50].…”

Section: 0mentioning

confidence: 99%

Biosensors for Food Mycotoxin Determination: A Comparative and Critical Review

Pisoschi,

Iordache,

Stanca

et al. 2024

Chemosensors

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The need for performant analytical methodologies to assess mycotoxins is vital, given the negative health impact of these compounds. Biosensors are analytical devices that consist of a biological element for recognizing the analyte and a transducer, which translates the biorecognition event into a signal proportional to the analyte concentration. The biorecognition elements can be enzymes, antibodies, or DNA fragments. The modalities of detection can be optical, electrochemical, thermal, or mass-sensitive. These analytical tools represent viable alternatives to laborious, expensive traditional methods and are characterized by specificity given by the biorecognition element, sensitivity, fast response, portability, multi-modal detection, and the possibility of in situ application. The present paper focuses on a comprehensive view, enriched with a critical, comparative perspective on mycotoxin assay using biosensors. The use of different biorecognition elements and detection modes are discussed comparatively. Nanomaterials with optical and electrochemical features can be exploited in association with a variety of biorecognition elements. Analytical parameters are reviewed along with a broad range of applications.

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“…As a group of toxic secondary metabolites, ochratoxins (OTs), including ochratoxin A (OTA), ochratoxin B (OTB), and ochratoxin C (OTC), are produced by Penicillium and Aspergillus . Among them, the detection of OTA acts as the dominant test in food since OTA shows higher toxicity than that of OTB and OTC . However, as analogues of OTA, the OTB and OTC typically coexist with OTA and both exhibited the similar toxicity .…”

Section: Introductionmentioning

confidence: 99%

“…1 Among them, the detection of OTA acts as the dominant test in food since OTA shows higher toxicity than that of OTB and OTC. 2 However, as analogues of OTA, the OTB and OTC typically coexist with OTA and both exhibited the similar toxicity. 3 Especially, the OTC can be easily converted into OTA after intake even at very low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanofibers Modified with Copper Nanoparticles for Simultaneous Extraction and Detection of Three Ochratoxins in Foods

Hou,

Chu,

et al. 2024

ACS Appl. Nano Mater.

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In this study, several electrospun nanofibers were prepared and characterized, and the electrospun polystyrene/ poly(ether sulfone) nanofiber coated with copper nanoparticles (PS/PES-CuNP nanofibers) was selected and utilized as solidphase extraction adsorbent. And then, the packed-fiber solid-phase extraction coupled with high-performance liquid chromatographyfluorescence detection method was established for the efficient determination of ochratoxins in foods. With the proposed method, several factors including the type and dosage of nanofibers, sample pH, extraction time, type, and volume of elution solvent were optimized. The results suggested that low limit of detection (0.102−0.126 ng/mL), limit of quantification (0.382−0.436 ng/ mL), and recoveries (85.5−111.1%) for ochratoxin A, B, and C with relative standard deviations <7% were achieved. As-synthesized PS/PES-CuNP nanofibers displayed satisfactory potential practical application in the simultaneous pretreatment and determination of mycotoxins in complex matrice samples.

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Recent advances in nanomaterial-based optical biosensors for food safety applications: Ochratoxin-A detection, as case study

Cited by 28 publications

References 155 publications

Advances in nano sensors for monitoring and optimal performance enhancement in photovoltaic cells

Advances in nano sensors for monitoring and optimal performance enhancement in photovoltaic cells

Biosensors for Food Mycotoxin Determination: A Comparative and Critical Review

Electrospun Nanofibers Modified with Copper Nanoparticles for Simultaneous Extraction and Detection of Three Ochratoxins in Foods

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