Textile UV detector with 2,3,5-triphenyltetrazolium chloride as an active compound

Kozicki, Marek; Sąsiadek, Elżbieta

doi:10.1016/j.radmeas.2011.03.016

Cited by 25 publications

(22 citation statements)

References 32 publications

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“…The reason for the samples changing colour is the transformation of the tetrazole ring of the TTC substrate through the reduction process and the formation of a corresponding formazan. Similar observations have been reported for TTC solutions irradiated with UV light (253.7 nm; Figure 4) [13] and ionising radiation [6,7,10] indicating the likely mechanism of this reaction.…”

Section: Resultssupporting

confidence: 88%

“…Consequently, it is believed that the conversion of TTC molecules in the printed pattern might also occur with the participation of the UVB/UVA component of sunlight. In fact, our former results on TTC UV‐initiated reactions showed that the complex absorption spectrum of TTC solutions consists of two bands between 220 and 400 nm, with the maxima at 247 and 320 nm [13] indicating the expected regions of interaction with light.…”

Section: Resultsmentioning

confidence: 99%

“…With the aid of a UVC meter (254 nm; LT Lutron; Cyfronika S.C., Poland), it was evaluated that the cotton samples used in this experiment absorb 98.5% of radiation before surface modification with TTC or NBT. However, when TTC and/or NBT reside on the cotton samples, no radiation passes through them, probably because the compounds absorb UV light over a broad range of wavelengths [13,14]. For this reason, the emitted energy by the UVC source is regarded as absorbed energy by the samples in this work.…”

Section: Methodsmentioning

confidence: 99%

“…It was also shown that on exposure of aqueous solutions of TTC and NBT to UV light, conversion of these compounds into red and blue colour formazans, respectively results. The properties of TTC and NBT were useful for the preparation of flat textile‐based systems for measurements of absorbed UV energy [13,14] and doses of ionising radiation (M Kozicki and E Sąsiadek, unpubl. data).…”

Section: Introductionmentioning

confidence: 99%

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UV‐assisted screen‐printing of flat textiles

Kozicki

Sąsiadek

2012

Coloration Technology

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An approach to printing of flat textiles is presented in this work. A screen‐printing method was applied on a cotton fabric. An aqueous printing paste was prepared from thickening and crosslinking agents and an ultraviolet‐sensitive tetrazole ring‐based compound of 2,3,5‐triphenyltetrazolium chloride or nitrotetrazolium blue chloride. After the printing process, a pattern was just visible with the naked eye. The development of colour occurred after exposure of the textile to ultraviolet light of 253.7 nm and was caused by the transformation of 2,3,5‐triphenyltetrazolium chloride or nitrotetrazolium blue chloride salts into the corresponding formazans, which are insoluble in water. The printed designs were resistant to washing. The stability of the colour of the samples is discussed in the case of prolonged irradiation, both with ultraviolet light of 253.7 nm and with daylight. This method of printing is a recent proposition for creative textile designing. It also seems to indicate a likely type of dye that may be further developed as potentially attractive for ultraviolet‐assisted printing or dyeing of textiles.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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UV‐assisted screen‐printing of flat textiles

Kozicki

Sąsiadek

2012

Coloration Technology

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“…In this sense, numerous dosimeters have been developed for the determination of received UV dose [8][9][10][11][12][13]. Digital colorimetric analysis is the method most widely used to quantify the color information of a sample image whose data are extracted from red, green and blue (RGB) channels [14][15][16][17][18]. In addition, RGB analysis was used for the identification and quantification of different analytes in food [19].…”

Section: Introductionmentioning

confidence: 99%

UV sensor based on polyurethane foam

Stragliotto

Mosconi

Strumia

et al. 2018

Sensors and Actuators B: Chemical

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Ultraviolet light (UV) present in solar radiation has an important effect on the health of human skin. For that reason, we developed a disposable and easy-to-manufacture UV light sensor based on surface color change of a polyurethane (PU) film and examined its performance against radiation received from a lamp or from the sun. The chemical modification after UV exposition and the consequent color variation from light yellow to brown in PU sensor were studied by using RGB image analysis and a reflectance prototype containing an Arduino board. It was found that the photochemical modification of PU films increases absorption of visible radiation in the blue spectrum range. Furthermore, PU surface was more sensitive to UV (<390) than that found in visible light when exposed to sunlight, which was associated with the presence of a chromophore in the material modified. In addition, it was found that the extract obtained from irradiated PU showed its maximum absorption at 309 nm. Hence, the use of this economical light radiation sensor seems to be a very promising tool to determine exposure to UV light from the solar spectrum.

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