2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 7 Marcus Intl. Symp. Solution Chemistry
| Editors: | F. Kongoli |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 64 pages |
| ISBN: | 978-1-989820-46-9(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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A non invasive evaluation of the moisturize content in human skin and leaves by surface tensiometry: A Comparative study
Davide Rossi1; Renata Uruci2; Tommaso Rossi3;11-NGO DEVELOPMENT COOPERATION BAZH.I, VIA BORGOGNONE, 13, MASERADA SUL PIAVE, ITALY 2-DEPARTMENT OF PHARMACEUTICAL AND PHARMACOLOGICAL SCIENCES, UNIVERSITY OF PADOVA, ITALY, Maserada Sul Piave, Italy; 2DEVELOPMENT COOPERATION BAZH.I NGO, Maserada Sul Piave, Italy; 3ISTITUTO TECNICO AGRARIO - ISISS "G.B. CERLETTI", Maserada Sul Piave, Italy;
Type of Paper: Regular
Id Paper: 222
Topic: 63
Abstract:
Surface tensiometry is a non invasive analytic technique capable to determine the surface tension of liquids and the surface free energy of solid substrates [1]. The contact angle (CA: deg) method is commonly used for the determination of the wettability of solid substrates, and in particular for the evaluation of the hydration state of biomaterials such as skin [2] and plant leaves [3]. The hydration analysis of skin consent to determine functionality of the stratum corneum, while the moisturize content of leaves is a parameter capable to classify different plant species in relation to their habitats and evaluate the relationships between wettability and photosynthesis, canopy interception, pathogen infections, and environmental quality [3]. However, the surface tensiometry comparison between different kind biomaterials and their correlations was not deepened studied. On this base, the aim of our work was the determination of the hydration of different species of ex-vivo samples of plant leaves and the correlation with the moisturize level of in-vivo skin of a subject test in order to identify the human skin as a possible reference’s tissue for the evaluation of leaves hydration. The water CA analysis of skin and leaves were performed in the same environmental conditions and time using portable MobilDrop DSA2 tenskinmeter [4]. Our work demonstrated that the variations of water CAs measured on the under edge surface of leaves (CA: 97.7±19.8 deg, 97.15±23.2 deg) were higher than that measured on the upper edge surface (CA: 97.9±5.0 deg, 96.61±7.64 deg). The water CAs measured on skin surface (CA: 73.1±11.1 deg and 75.3±9.6 deg) demonstrated also the differences in the hydration level between the two biomaterials. The correlation analysis between the water CAs measured on skin surface and that performed on more (R2=0.87, R2=0.93) and less (R2=0.54, R2=0.015) hydrated surfaces of leaves opened at the hypothesis to consider the human epidermis as a possible reference biological substrate for the evaluation of different kind of plant species on the base of their moisturize contents. Our investigation could represent a important perspective in the study of the environmental pollution within the sustainable development in agriculture field. This because surface tensiometry is a non invasive, rapid and cheap analytic technique capable to reveal the changes in the wettability of vegetal surfaces in relation to phytosanitary treatments also.
Keywords:
Surface tension; surface tensiometry; hydration; skin; leaves; contact angle; environmental pollutionReferences:
[1] F.M. Etzler, Mittal (Ed.) Advances in Contact Angle Wettability&Adhesion, Scrivener Publishing LLC, 13 (2018) 229-329.[2] D. Rossi, A. Bettero, Mittal (Ed.) Advances in Contact Angle Wettability&Adhesion, Scrivener Publishing LLC, 4 (2020) 115-144.
[3] H. Wang, H. Shi, Y. Wang, IntechOpen 11 (2015) 295-321.
[4] D. Rossi, P. G. Jobstraibizer, C. Dal Bosco, A. Bettero, J. Adhesion Sci. Tech. 27 (2013) 30-45.