Publications by authors named "L F Capitan-Vallvey"
Article Synopsis
- Three different dyes were tested to create sensors for detecting gaseous ammonia, which signals food spoilage due to microbial degradation.
- Two sensors used natural pigments (curcumin and anthocyanin), while the third used bromothymol blue, all of which are safe for contact with food.
- The sensors were evaluated under high humidity conditions and utilized colorimetry via a camera to measure color changes, showing potential for practical use as freshness indicators in the food industry.
Correction for 'An optical sensor for the sensitive determination of formaldehyde gas based on chromotropic acid and 4-aminoazobenzene immobilized in a hydrophilic membrane' by M. D. Fernández-Ramos , , 2023, , 4533-4538, https://doi.
View Article and Find Full Text PDFCorrection for 'Inkjet-printed O gas sensors in intelligent packaging' by M. D. Fernández-Ramos , , 2021, , 3177-3184, https://doi.
View Article and Find Full Text PDFSalivary pH serves as a valuable and useful diagnostic marker for periodontal disease, as it not only plays a critical role in disease prevention but also in its development. Typically, saliva sampling is collected by draining and spitting it into collection tubes or using swabs. In this study, we have developed a Point-of-Care (POC) device for in situ determination of oral pH without the need for complex instruments, relying solely on a smartphone as the detection device.
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