UV-C Irradiation as a Tool to Reduce Biofilm Growth on Pompeii Wall Paintings
Abstract
:1. Introduction
2. Materials and Methods
2.1. Chemical-Physical Analysis (XRF)
2.2. Cultivation of Algae
2.3. UV-C Treatments
2.4. Light Microscopy and Cell Count
2.5. Absorption of Main Photosynthetic Pigments
2.6. Colorimetric Analyses
3. Results
3.1. XRF Analyses of the Pigments
3.2. Effect of UV-C on Artificial Biofilm and Control Test Samples
3.3. Measurement of Chlorophyll Concentration
3.4. Colorimetric Analyses
4. Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample | ∆L* | ∆a* | ∆b* | ∆E |
---|---|---|---|---|
Green | ||||
green 60 cm | −2.40 | 1.10 | 0.01 | 2.64 |
green 80 cm | −1.40 | 2.70 | 0.35 | 3.14 |
green 100 cm | −3.51 | 5.23 | 2.08 | 6.63 |
green 120 cm | −12.69 | 1.22 | 3.68 | 13.27 |
Red | ||||
red 60 cm | 5.20 | −1.47 | −1.38 | 5.57 |
red 80 cm | 1.31 | −11.96 | −7.28 | 14.06 |
red 100 cm | 3.38 | −21.30 | −9.5 | 23.56 |
red 120 cm | 1.33 | −17.15 | −4.89 | 17.88 |
Yellow | ||||
yellow 60 cm | −5.20 | −5.69 | −15.01 | 16.95 |
yellow 80 cm | −6.15 | −6.09 | −16.23 | 18.39 |
yellow 100 cm | −15.38 | −9.09 | −12.87 | 21.82 |
yellow 120 cm | −12.69 | −1.22 | −3.68 | 13.27 |
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Cennamo, P.; Ebbreo, M.; Quarta, G.; Trojsi, G.; De Rosa, A.; Carfagna, S.; Caputo, P.; Martelli Castaldi, M. UV-C Irradiation as a Tool to Reduce Biofilm Growth on Pompeii Wall Paintings. Int. J. Environ. Res. Public Health 2020, 17, 8392. https://doi.org/10.3390/ijerph17228392
Cennamo P, Ebbreo M, Quarta G, Trojsi G, De Rosa A, Carfagna S, Caputo P, Martelli Castaldi M. UV-C Irradiation as a Tool to Reduce Biofilm Growth on Pompeii Wall Paintings. International Journal of Environmental Research and Public Health. 2020; 17(22):8392. https://doi.org/10.3390/ijerph17228392
Chicago/Turabian StyleCennamo, Paola, Marta Ebbreo, Giovanni Quarta, Giorgio Trojsi, Alessandro De Rosa, Simona Carfagna, Paolo Caputo, and Monica Martelli Castaldi. 2020. "UV-C Irradiation as a Tool to Reduce Biofilm Growth on Pompeii Wall Paintings" International Journal of Environmental Research and Public Health 17, no. 22: 8392. https://doi.org/10.3390/ijerph17228392