1. Αποθετήριο Παραδοτέων Υποτρόφων Δράσεων ΕΣΠΑ Τριτοβάθμιας Εκπαίδευσης 2017-2023
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3. Ερευνητικές ομάδες

Τύπος:	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Evaluation of photosensitive paper coatings as detectors for instrumentation-free UV photometric analysis based on photography-based photometry
Συγγραφέας:	[EL] Χολέβα, Τατιάνα[EN] Choleva, Tatiana [EL] Σφακιανάκη, Αφροδίτη[EN] Sfakianaki, Afroditi [EL] Βλεσσίδης, Αθανάσιος[EN] Vlessidis, Athanasios [EL] Γκιώκας, Δημοσθένης[EN] Giokas, Dimosthenis
Ημερομηνία:	20/08/2021
Περίληψη:	Photography-based photometry is a technique developed to perform high throughput UV photometric analysis without instrumental detectors in resource-limited settings. Its principle relies on the illumination of a sample with UV irradiation and then capturing the transmitted irradiation on a photosensitive paper surface. Therefore, the photosensitive surface acts as a detector for the determination of the concentration of analytes in the sample. This work aims to investigate the optimum photosensitive paper coatings for capturing the transmitted UV irradiation. To this end, photosensitive coatings based on silver, iron, and dichromate salts were tested using three assays of pharmaceutical and biochemical interest. The results from both calibrations, using standard solutions and the application in real samples, show that photosensitive coatings based on iron salts provide the best results. Importantly, the detection limits and the linear range of the calibration curves were better than those obtained with standard photometry. Based on these findings, cyanotype green papers, are proposed as optimum detectors for photography-based photometry. This finding simplifies the operation of the technique enabling the fabrication of prototype readers for analytical assays performed in resource limited settings, point-of-need applications or in the field
Γλώσσα:	Αγγλικά
Σελίδες:	12
DOI:	10.3390/chemosensors9080233
EISSN:	2227-9040
Θεματική κατηγορία:	[EL] Αναλυτική χημεία[EN] Analytical Chemistry
Λέξεις-κλειδιά:	instrumentation-free assays; photography-based photometry; UV analysis; optical detection; photosensitive paper coatings
Κάτοχος πνευματικών δικαιωμάτων:	© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Όροι και προϋποθέσεις δικαιωμάτων:	This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη:	https://www.mdpi.com/2227-9040/9/8/233
Ηλεκτρονική διεύθυνση περιοδικού:	https://www.mdpi.com/journal/chemosensors
Τίτλος πηγής δημοσίευσης:	Chemosensors
Τεύχος:	8
Τόμος:	9
Σελίδες τεκμηρίου (στην πηγή):	Article no 233
Σημειώσεις:	This research was co-financed by Greece and the European Union (European Social FundESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning 2014–2020» in the context of the project “«Development of novel analytical methods and signal transduction techniques for the optical analysis of biomarkers in biological fluids using common imaging devices»” (MIS 5047630). Includes file with Supplementary Materials
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