RT Journal Article
T1 Assessment of nanoparticles/nanocomposites to inhibit micro-algal fouling on limestone façades.
A1 Becerra, Javier
A1 Ortiz, Pilar
A1 Zaderenko Partida, Ana Paula
A1 Karapanagiotis, Ioannis
K1 Deterioration
K1 aesthetics
K1 evaluation methods
K1 heritage
K1 anti-algae
K1 nanoparticle
K1 limestone
AB This study conducted a comparison between biocide treatments based on nanoparticles of silver, copper, ZnO, TiO2 and silver/ TiO2 nanocomposites to analyse their capability to inhibit microalgal fouling on stone buildings. Biofouling is one of the main alterations on stone façades, causes degradation of their constituent materials and interferes with their aesthetic values. The proposed treatments were tested on a limestone from the historic quarry of Estepa (Spain), widely used as construction material in the South of Spain. The applicability of the treatments was evaluated by colorimetry. The biocidal effectiveness of the nanoparticles was studied on stone surfaces by multispectral imaging, digital image analysis and optical coherencetomography. This is a low-cost and efficient protocol to validate biocidal treatments forlimestone monuments, and our results demonstrate the potential of silver and ZnOnanoparticles as a protective treatment for stone façades. The results have implications for practitioners working on historic buildings.
PB Taylor and Francis
YR 2019
FD 2019-05-16
LK http://hdl.handle.net/10433/8072
UL http://hdl.handle.net/10433/8072
LA en
NO Building research and information, Vol. 48, No 2, 2020, pp. 180-190.
NO Proyecto Art-Risk, BIA2015-64878-R
NO Department of Physical, Chemical and Natural Systems, Pablo de Olavide University
NO Department of Management and Conservation of Ecclesiastical Cultural Heritage Objects, University Ecclesiastical Academy of Thessaloniki
DS RIO
RD May 9, 2026