Pocket test for instantaneous quantification of starch adulterant in milk using a counterfeit banknote detection pen

Andrade, Larissa M.; Romanholo, Pedro V.V.; Ananias, Ana Carolina A.; Venancio, Kamylla P.; Silva-Neto, Habdias A.; Coltro, Wendell Karlos Tomazelli; Sgobbi, Lívia F.

doi:10.1016/j.foodchem.2022.134844

Cited by 5 publications

(5 citation statements)

References 39 publications

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“…An Identi pen permanent marker (Sakura, Japan) was employed for comparison studies. A wax printer model ColorQube 8570 acquired from Xerox (Rochester, NY, USA) was used to fabricate the wax-based barrier used in comparison to the rosin-based one, following the methods previously described. , …”

Section: Methodsmentioning

confidence: 99%

“…A wax printer model ColorQube 8570 acquired from Xerox (Rochester, NY, USA) was used to fabricate the wax-based barrier used in comparison to the rosin-based one, following the methods previously described. 4,18 Fabrication of Paper-Based Devices. The development of the bioink and its application in creating hydrophobic barriers comprised a two-phase process.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…Paper-based analytical devices (PADs) have emerged as a powerful tool for a myriad of applications, such as point-of-care diagnostics, , bioanalysis, food and drug analyses, − and environmental monitoring . Several fabrication methods have been reported, divided into six categories: handmade, semiautomated, batch, laboratory-based, printer-based, and roll-to-roll fabrication, with all of them having practical pros and cons. , Among those, wax printing is one of the most popular techniques, considered as a near-ideal strategy since it brings together midscale production, affordability, and user-friendliness.…”

Section: Introductionmentioning

confidence: 99%

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Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach

Romanholo,

de Andrade,

Silva-Neto

et al. 2024

Anal. Chem.

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The patterning of hydrophilic paper with hydrophobic materials has emerged as an interesting method for the fabrication of paper-based devices (PADs). Herein, we demonstrate a digitally automated, easy, low-cost, eco-friendly, and readily available method to create highly hydrophobic barriers on paper that can be promptly employed with PADs by simply using a bioink made with rosin, a commercially available natural resin obtained from conifer trees. The bioink can be easily delivered with the use of a ballpoint pen to produce water-and organic solvent-resistant barriers, showing superior properties when compared to other methods such as wax-printing or permanent markers. The approach enables the pen to be attached to a commercially available cutting printer to perform the semiautomated fabrication of hydrophobic barriers for PADs. With the aid of digitally controlled optimization, together with features of machine learning and design of experiments, we show a thorough investigation on the barrier strength that can be further adjusted to the desired application's needs. Then, we explored the barrier sturdiness across various uses, such as wide range aqueous pH sensing and the harsh acidic/organic conditions needed for the colorimetric detection of cholecalciferol.

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Section: Methodsmentioning

confidence: 99%

Section: ■ Experimental Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach

Romanholo,

de Andrade,

Silva-Neto

et al. 2024

Anal. Chem.

Self Cite

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“…Paper-based assays can be tailored to identify specific adulterants through selective reactions, quickly assessing food purity. Recent examples include the detection of adulteration in Iranian honey [ 243 ] and milk adulteration with melamine [ 244 ], starch [ 245 ], sugar [ 246 ], and urea [ 247 ]. Wu et al [ 248 ] developed a surface molecularly imprinted microfluidic paper-based device (SMIPs-

PAD) for detecting butachlor in mung bean samples.…”

Section: Food Safetymentioning

confidence: 99%

Sustainable Sensing with Paper Microfluidics: Applications in Health, Environment, and Food Safety

Kumar,

Kaushal,

Lee

2024

Biosensors

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This manuscript offers a concise overview of paper microfluidics, emphasizing its sustainable sensing applications in healthcare, environmental monitoring, and food safety. Researchers have developed innovative sensing platforms for detecting pathogens, pollutants, and contaminants by leveraging the paper’s unique properties, such as biodegradability and affordability. These portable, low-cost sensors facilitate rapid diagnostics and on-site analysis, making them invaluable tools for resource-limited settings. This review discusses the fabrication techniques, principles, and applications of paper microfluidics, showcasing its potential to address pressing challenges and enhance human health and environmental sustainability.

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“…Paper-based assays can be tailored to identify specific adulterants through selective reactions, quickly assessing food purity. Recent examples include the detection of adulteration in Iranian honey [232], milk adulteration with melamine [233], starch [234], sugar [235], and urea [236]. Wu et al [237] developed a surface molecularly imprinted microfluidic paper-based device (SMIPs-µPAD) for detecting butachlor in mung bean samples.…”

Section: Food Safetymentioning

confidence: 99%

Sustainable Sensing with Paper Microfluidics: Applications in Health, Environment, and Food Safety

Kumar,

Kaushal,

Lee

2024

Preprint

View full text Add to dashboard Cite

This manuscript offers a concise overview of paper microfluidics, emphasizing its sustainable sensing applications in healthcare, environmental monitoring, and food safety. Researchers have developed innovative sensing platforms for detecting pathogens, pollutants, and contaminants by leveraging the paper’s unique properties, such as biodegradability and affordability. These portable, low-cost sensors facilitate rapid diagnostics and on-site analysis, making them invaluable tools for resource-limited settings. The review discusses fabrication techniques, principles, and applications of paper microfluidics, showcasing its potential to address pressing challenges and enhance human health and environmental sustainability.

show abstract

Pocket test for instantaneous quantification of starch adulterant in milk using a counterfeit banknote detection pen

Cited by 5 publications

References 39 publications

Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach

Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach

Sustainable Sensing with Paper Microfluidics: Applications in Health, Environment, and Food Safety

Sustainable Sensing with Paper Microfluidics: Applications in Health, Environment, and Food Safety

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