Algal colonization kinetics on roofing and façade tiles: Influence of physical parameters

Giovannacci, David; Leclaire, Charlotte; Horgnies, Matthieu; Ellmer, M.; Mertz, Jean‐Didier; Orial, Geneviève; Chen, J.; Bousta, Faisl

doi:10.1016/j.conbuildmat.2013.07.034

Cited by 23 publications

(20 citation statements)

References 20 publications

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“…The sprinkling cycles were set to start every 12 h and to run for 90 min. The advantage of running the suspension on materials inclined at 45° was to increase the time of water runoff on surfaces [97]. This setup can be easily adapted to different kinds of samples and to different inoculation solutions.…”

Section: Artificial Ageingmentioning

confidence: 99%

“…To study biological stain, it is also important to use LVESEM (low vacuum environmental SEM), which can operate also in low vac-uum mode allowing the study of biological samples. Together with SEM analysis, it is also important to evaluate the visual aspect of a sample through both visual inspection [91,[96][97][98] and image analysis with proper software packages (ImageJ and Software AnalySIS Pro) [28,54,90,91,95,100]. Valenca et al [99] replaced traditional scanner or camera with an innovative camera equipped with detectors covering a wavelength range from 340 to 1200 nm.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…Artificial ageing has been applied to reduce natural ageing exposure time, as well as to condition the samples with controlled conditions such as the lighting exposure (simulating the day/night time with lamps), the RH conditions (usually 50%) and the temperature (usually around 25°C), thus mirroring the optimal conditions for microorganisms growth [22,28,54,[94][95][96][97]. Several experimental setups have been proposed.…”

Section: Artificial Ageingmentioning

confidence: 99%

“…This technique allows evaluating chlorophyll fluorescence on in vivo samples. Other structural analysis are performed in most of the studies: scanning electron microscope (SEM) was widely used both in high vacuum and low vacuum mode [22,54,[93][94][95]. High vacuum allows energy dispersion microanalysis, to perform chemical analysis on the samples surface.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…Several experimental setups have been proposed. The most applied one is the apparatus used in [95,96], where the system consisted of a 100 cm × 50 cm × 50 cm glass chamber containing stainless steel supports inclined at 45°, onto which specimens of facade coatings were placed. The supports were positioned back to back.…”

Section: Artificial Ageingmentioning

confidence: 99%

See 4 more Smart Citations

Review on the influence of biological deterioration on the surface properties of building materials: organisms, materials, and methods

Ferrari¹,

Santunione²,

Libbra³

et al. 2015

Int. J. DNE

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A strong attention is recently paid to surface properties of building materials as these allows controlling solar gains of the building envelope and overheating of buildings and urban areas. In this regard, deterioration phenomena due to biological aggression can quickly damage solar-reflecting roof surfaces and thus increase sharply solar gains, discomfort, air-conditioning costs and waterproofing degradation. The same deterioration problem has deleterious effect on cultural heritage, ruining its huge historic and artistic value. This work is aimed at providing an overview on the different organisms that affect the surface of most used building materials, to support the design of new building materials with long-lasting surface properties and to find a way to preserve cultural heritage. Artificial ageing is the long-term aim of this investigation, in which what in nature happens after months or years is compressed in a very short time by forcing the growth of microorganisms through a strict control on the different conditioning factors. Both natural and artificial ageing are eventually outlined in the last part of this work to provide a comprehensive idea of what is necessary to study in a complete way biological ageing protocols on building materials. Several characterization techniques are also introduced to analyse the influence of microorganisms on the surface of different building materials.

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Section: Artificial Ageingmentioning

confidence: 99%

Section: Characterization Techniquesmentioning

confidence: 99%

Section: Artificial Ageingmentioning

confidence: 99%

Section: Characterization Techniquesmentioning

confidence: 99%

Section: Artificial Ageingmentioning

confidence: 99%

See 3 more Smart Citations

Review on the influence of biological deterioration on the surface properties of building materials: organisms, materials, and methods

Ferrari¹,

Santunione²,

Libbra³

et al. 2015

Int. J. DNE

View full text Add to dashboard Cite

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An overview of techniques for the characterization and quantification of microbial colonization on stone monuments

et al. 2014

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Biodeterioration can be defined as any undesired change of the properties of a material caused by biological activity of living organisms. The biodeterioration of stone materials is related to the production of pigments (aesthetic action), to cell metabolism (biochemical action) and to the mechanical action of the biomass colonizing the material during its growth (physical action). Quantification of the sessile biomass and characterization of microbial communities colonizing stone are essential first steps to ensure the diagnosis of biodeterioration processes and to implement control strategies and appropriate treatment. Different destructive and non-destructive approaches can be used to sample stone specimens from monuments: scraping, swab using, and cutting. Different analytical methods can be used depending on the type of microorganism sought: determination of chlorophyll content and color analysis for pigmented microorganisms; measurement of in situ physiological activity of surface microcolonies by applying fluorogenic substrate analogues or confocal laser scanning microscopy observations after CTC staining for active biomass; scanning or transmission electron microscopy observation for biofilm visualization; enzymelinked immunosorbent assay for the investigation of both microorganisms that can and cannot be cultured; classical microbiological methods, which consist in cultivation of microorganisms on synthetic media; and molecular methods for the study of microbial biodiversity based on the polymorphism of molecular markers using PCR, hybridization, classical or high throughput sequencing. The aim of this review is to present basics of the different biodeterioration mechanisms and to focus on the main techniques that can be used to characterize and quantify the biodeterioration biomass.

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Assessment and optimization of environmental regulation measures for stone carvings from the perspective of algal growth

Xie

Long

Chen

et al. 2023

Building and Environment

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Algal colonization kinetics on roofing and façade tiles: Influence of physical parameters

Cited by 23 publications

References 20 publications

Review on the influence of biological deterioration on the surface properties of building materials: organisms, materials, and methods

Review on the influence of biological deterioration on the surface properties of building materials: organisms, materials, and methods

An overview of techniques for the characterization and quantification of microbial colonization on stone monuments

Assessment and optimization of environmental regulation measures for stone carvings from the perspective of algal growth

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