Fluorescent DNAs printed on paper: sensing food spoilage and ripening in the vapor phase

Kwon, Hyukin; Samain, Florent; Kool, Eric T.

doi:10.1039/c2sc20461d

Cited by 48 publications

(33 citation statements)

References 47 publications

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“…6 Minute alteration of the refractive index of poly[methyl(3,3,3-triuoropropyl)siloxane] upon exposure to hydrocarbons was detected from human breath by applying the polymer on cleaved optical bers. 16,17 Recently, Mohr and co-workers have developed a series of triuoroacetyl reactants for the colourimetric detection of analytes such as water vapor, alcohols, amines and thiols. 8 A number of different organic molecules and inorganic-organic hybrid probes were shown as efficient and stable uorescence based sensors for pH, 9 nitroaromatic explosives, 10 and diamines.…”

Section: Introductionmentioning

confidence: 99%

Trifluoroacetylazobenzene for optical and electrochemical detection of amines

et al. 2015

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In this work, we demonstrate the solution processing of optical and electrochemical dye sensors based on 4-(dioctylamino)-4 0 -(trifluoroacetyl)azobenzene and its application in sensing different amine compounds.Distinct optical response of the sensors exposed to ammonia, tetramethylammonium hydroxide, ethylamine, cadaverine and putrescine (typical compounds upon the decomposition of proteins) is observed. Incorporation of inkjet deposited thin films of the dye as sensors in food packages of ground meat and salmon is found as a feasible route to detect the appearance of biogenic amines produced by the degrading food products. Furthermore, we demonstrate an electrochemical amine sensor based on (trifluoroacetyl)azobenzene dye added in carbon nanotube-Nafion® composites. The electrochemical sensor exploits the reaction between the dye and amines to detect amines in electrolytes, while the carbon nanotubes provide large surface for adsorption and also provide a percolating electrical network for allowing efficient charge transfer at the electrode electrolyte interface. Scheme 1 Bonding reaction of 4-(dioctylamino)-4 0 -(trifluoroacetyl)azobenzene and amine. 4688 | J. Mater. Chem. A, 2015, 3, 4687-4694 This journal is

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Section: Introductionmentioning

confidence: 99%

Trifluoroacetylazobenzene for optical and electrochemical detection of amines

et al. 2015

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“…Brighteners used to improve the whiteness cause ah igh background emission in fluorescence-based detection. [43] On the other hand, filter paper and chromatography paper do not undergo treatment with such additives,a nd almost all impurities from the raw material (lignin, etc.) are removed after full bleaching.C ellulose is the primary component, with abundant hydroxy groups (-OH) and af ew carboxylic acid groups (-COOH) present on the fiber surface.…”

Section: Paper Substratesmentioning

confidence: 99%

Paper‐Based Inkjet‐Printed Microfluidic Analytical Devices

et al. 2015

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Rapid, precise, and reproducible deposition of a broad variety of functional materials, including analytical assay reagents and biomolecules, has made inkjet printing an effective tool for the fabrication of microanalytical devices. A ubiquitous office device as simple as a standard desktop printer with its multiple ink cartridges can be used for this purpose. This Review discusses the combination of inkjet printing technology with paper as a printing substrate for the fabrication of microfluidic paper-based analytical devices (μPADs), which have developed into a fast-growing new field in analytical chemistry. After introducing the fundamentals of μPADs and inkjet printing, it touches on topics such as the microfluidic patterning of paper, tailored arrangement of materials, and functionalities achievable exclusively by the inkjet deposition of analytical assay components, before concluding with an outlook on future perspectives.

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“…Besides oxygen, moisture and pH, several volatile compounds can be indicative of food spoilage, or even food freshness . For instance, some volatile compounds are directly related to the health and nutritional value of some vegetables (e.g.…”

Section: Sensing Spoilagementioning

confidence: 99%

Future Perspectives Towards the Use of Nanomaterials for Smart Food Packaging and Quality Control

Jiang

Valdepérez

Nazarenus

et al. 2014

Part. Part. Syst. Charact.

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In this Progress Report some recent trends and future perspectives towards the use of nanomaterials for smart food packaging and quality control of food are given. The examples and discussion are meant to illustrate the potential use of nanotechnology for food sustainability rather than to review the state of the art of nanomaterials in this area, which although expected to have a groundbreaking impact on food sustainability is still on an early stage.

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Fluorescent DNAs printed on paper: sensing food spoilage and ripening in the vapor phase

Cited by 48 publications

References 47 publications

Trifluoroacetylazobenzene for optical and electrochemical detection of amines

Trifluoroacetylazobenzene for optical and electrochemical detection of amines

Paper‐Based Inkjet‐Printed Microfluidic Analytical Devices

Future Perspectives Towards the Use of Nanomaterials for Smart Food Packaging and Quality Control

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