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Dr. Christine Gaylarde
University of Oklahoma

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0 Cyanobacteria
0 geomicrobiology
0 biodeterioration
0 biodeterioration of cultural heritage
0 Terrestrial Biofilms

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Cyanobacteria
biodeterioration
Microbial Colonization
biodeterioration of cultural heritage
Terrestrial Biofilms

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Review
Published: 19 June 2021 in Applied Sciences
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Cultural heritage buildings of stone construction require careful restorative actions to maintain them as close to the original condition as possible. This includes consolidation and cleaning of the structure. Traditional consolidants may have poor performance due to structural drawbacks such as low adhesion, poor penetration and flexibility. The requirement for organic consolidants to be dissolved in volatile organic compounds may pose environmental and human health risks. Traditional conservation treatments can be replaced by more environmentally acceptable, biologically-based, measures, including bioconsolidation using whole bacterial cells or cell biomolecules; the latter include plant or microbial biopolymers and bacterial cell walls. Biocleaning can employ microorganisms or their extracted enzymes to remove inorganic and organic surface deposits such as sulfate crusts, animal glues, biofilms and felt tip marker graffiti. This review seeks to provide updated information on the innovative bioconservation treatments that have been or are being developed.

ACS Style

Benjamín Ortega-Morales; Christine Gaylarde. Bioconservation of Historic Stone Buildings—An Updated Review. Applied Sciences 2021, 11, 5695 .

AMA Style

Benjamín Ortega-Morales, Christine Gaylarde. Bioconservation of Historic Stone Buildings—An Updated Review. Applied Sciences. 2021; 11 (12):5695.

Chicago/Turabian Style

Benjamín Ortega-Morales; Christine Gaylarde. 2021. "Bioconservation of Historic Stone Buildings—An Updated Review." Applied Sciences 11, no. 12: 5695.

Review article
Published: 17 June 2021 in npj Materials Degradation
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Dimension stone is natural rock prepared for building use. It is rapidly colonised by microorganisms that cause discoloration (mainly cyanobacteria, algae and fungi) and structural damage. Microbial mobilisation of ions leads to new superficial or internal deposits, weakening the structure. Cyanobacteria and fungi may penetrate, filling pores or creating new spaces. Lichens, fungus/phototroph associations, colonise surfaces and damage stone through ingrowing rhizines and acid production. Initial degradation produces conditions suitable for germination of seeds of higher plants and further destruction. Emerging techniques to elucidate stone-cell interactions and control of initial biofilm formation that eventuates in stone disintegration are discussed.

ACS Style

Christine C. Gaylarde; Jose Antonio Baptista-Neto. Microbiologically induced aesthetic and structural changes to dimension stone. npj Materials Degradation 2021, 5, 1 -8.

AMA Style

Christine C. Gaylarde, Jose Antonio Baptista-Neto. Microbiologically induced aesthetic and structural changes to dimension stone. npj Materials Degradation. 2021; 5 (1):1-8.

Chicago/Turabian Style

Christine C. Gaylarde; Jose Antonio Baptista-Neto. 2021. "Microbiologically induced aesthetic and structural changes to dimension stone." npj Materials Degradation 5, no. 1: 1-8.

Review article
Published: 25 May 2021 in Heliyon
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Plastic microfibre pollution produced by domestic and commercial laundering of synthetic textiles has recently been incriminated in the press and the scientific literature as the main source (up to 90%) of primary microplastics in the oceans. Polyethylene terephthalate (PET) is the most common microfibre encountered. This review aims to provide updated information on worldwide plastic microfibre pollution caused by textile laundering and some possibilities for its control. Release of microfibres during domestic washing and tumble drying, their fate in wastewater treatment plants (WWTPs) and the oceans, and their environmental effects on the aquatic biota are discussed, as well as potential control methods at the levels of textile modification and laundry procedures. Environmental effects on aquatic biota are important; as a result of their small size and length-to-diameter ratio, microfibers are more effectively incorporated by organisms than other plastic particle groups. Simulation laundering studies may be useful in the development of a Standard Test Method and modification of WWTPs may reduce microfibre release into aquatic systems. However, improvements will be necessary in textile design and appliance design, and recommendations should be made to consumers about reducing their personal impact on the environment through their laundering choices, which can include appliances, fabric care products and washing conditions. Official regulation, such as that introduced recently by the French government, may be necessary to reduce plastic microfibre release from clothes' laundering.

ACS Style

Christine Gaylarde; Jose Antonio Baptista-Neto; Estefan Monteiro da Fonseca. Plastic microfibre pollution: how important is clothes’ laundering? Heliyon 2021, 7, e07105 .

AMA Style

Christine Gaylarde, Jose Antonio Baptista-Neto, Estefan Monteiro da Fonseca. Plastic microfibre pollution: how important is clothes’ laundering? Heliyon. 2021; 7 (5):e07105.

Chicago/Turabian Style

Christine Gaylarde; Jose Antonio Baptista-Neto; Estefan Monteiro da Fonseca. 2021. "Plastic microfibre pollution: how important is clothes’ laundering?" Heliyon 7, no. 5: e07105.

Article
Published: 18 April 2021 in Water, Air, & Soil Pollution
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The influence of silver nanoparticles (AgNPs) on microbial biofilm colonization on natural calcareous rocks was studied in the Campeche marine intertidal environment in southeast Mexico. The biofilm formation was assessed by color spectrophotometer measurements represented in the CIELAB color space, digital image analysis, confocal laser scanning microscopy, biochemical biomarkers, and enumeration of morphologically characterized cells by FlowCAM®. Coupons were exposed with or without polydimethylsiloxane (PDMS) coatings and without or with various concentrations of AgNPs. Initial colonizers on all surfaces were diatoms of the species Coscinodiscus centralis. After 60 days’ exposure to the marine environment, other genera of microalgae and cyanobacteria were observed. Biofilm formation was reduced on all coated coupons to a greater or lesser extent than bare rock, indicating that these nanomaterials’ presence altered biofilms’ formation on calcareous rock negatively on microbial communities’ essentials for ecosystem health.

ACS Style

Juan Carlos Camacho-Chab; Benjamín O. Ortega-Morales; Christine Gaylarde; Juan E. Pereañez-Sacarías; Hilda P. León-Tejera; Rodrigo E. Tun-Che; Radames J. Álvarez-Zapata; Augusto I. Almeyda-Cen; William Talavera-Pech; Juan F. Illescas-Salinas. Influence of Silver Nanoparticle–Based Coating on Calcareous Rock Surfaces on Microbial Biofilm Colonization in Intertidal Environments in Campeche, Mexico. Water, Air, & Soil Pollution 2021, 232, 1 -15.

AMA Style

Juan Carlos Camacho-Chab, Benjamín O. Ortega-Morales, Christine Gaylarde, Juan E. Pereañez-Sacarías, Hilda P. León-Tejera, Rodrigo E. Tun-Che, Radames J. Álvarez-Zapata, Augusto I. Almeyda-Cen, William Talavera-Pech, Juan F. Illescas-Salinas. Influence of Silver Nanoparticle–Based Coating on Calcareous Rock Surfaces on Microbial Biofilm Colonization in Intertidal Environments in Campeche, Mexico. Water, Air, & Soil Pollution. 2021; 232 (5):1-15.

Chicago/Turabian Style

Juan Carlos Camacho-Chab; Benjamín O. Ortega-Morales; Christine Gaylarde; Juan E. Pereañez-Sacarías; Hilda P. León-Tejera; Rodrigo E. Tun-Che; Radames J. Álvarez-Zapata; Augusto I. Almeyda-Cen; William Talavera-Pech; Juan F. Illescas-Salinas. 2021. "Influence of Silver Nanoparticle–Based Coating on Calcareous Rock Surfaces on Microbial Biofilm Colonization in Intertidal Environments in Campeche, Mexico." Water, Air, & Soil Pollution 232, no. 5: 1-15.

Review article
Published: 15 December 2020 in Marine Pollution Bulletin
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Paint particles are part of the increasingly important microplastics (MPs) pollution of our oceans. They contain polyurethanes, polyesters, polyacrylates, polystyrenes, alkyls and epoxies. In spite of their prevalence, paint fragments are often excluded from MP audits. This review, citing 127 references, discusses detection, characteristics, sources and ecological effects of paint fragments in our oceans, as well as the abundance of paint fragments in MP samples around the world and their colonization by marine microorganisms, which differs from that of non-paint MPs. Paint MPs arise from shipping and boating activities, road markings and external surfaces of buildings. Many paint fragments come from antifouling paints used on commercial vessels and leisure boats; these may be regarded as particular pollutants, not only containing but also leaching heavy metals and biocides. Some effects of antifouling paint particles on aquatic biota are caused by these toxins. Paint particles are an understudied portion of marine MP pollution.

ACS Style

Christine C. Gaylarde; José Antonio Baptista Neto; Estefan Monteiro da Fonseca. Paint fragments as polluting microplastics: A brief review. Marine Pollution Bulletin 2020, 162, 111847 .

AMA Style

Christine C. Gaylarde, José Antonio Baptista Neto, Estefan Monteiro da Fonseca. Paint fragments as polluting microplastics: A brief review. Marine Pollution Bulletin. 2020; 162 ():111847.

Chicago/Turabian Style

Christine C. Gaylarde; José Antonio Baptista Neto; Estefan Monteiro da Fonseca. 2020. "Paint fragments as polluting microplastics: A brief review." Marine Pollution Bulletin 162, no. : 111847.

Review
Published: 30 November 2020 in Heritage
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Microbial cells that produce biofilms, or patinas, on historic buildings are affected by climatic changes, mainly temperature, rainfall and air pollution, all of which will alter over future decades. This review considers the colonization of stone buildings by microorganisms and the effects that the resultant biofilms have on the degradation of the structure. Conservation scientists require a knowledge of the potential effects of microorganisms, and the subsequent growth of higher organisms such as vascular plants, in order to formulate effective control strategies. The vulnerability of various structural materials (“bioreceptivity”) and the ways in which the environmental factors of temperature, precipitation, wind-driven rain and air pollution influence microbial colonization are discussed. The photosynthetic microorganisms, algae and cyanobacteria, are acknowledged to be the primary colonizers of stone surfaces and many cyanobacterial species are able to survive climate extremes; hence special attention is paid to this group of organisms. Since cyanobacteria require only light and water to grow, can live endolithically and are able to survive most types of stress, they may become even more important as agents of stone cultural property degradation in the future.

ACS Style

Christine C. Gaylarde. Influence of Environment on Microbial Colonization of Historic Stone Buildings with Emphasis on Cyanobacteria. Heritage 2020, 3, 1469 -1483.

AMA Style

Christine C. Gaylarde. Influence of Environment on Microbial Colonization of Historic Stone Buildings with Emphasis on Cyanobacteria. Heritage. 2020; 3 (4):1469-1483.

Chicago/Turabian Style

Christine C. Gaylarde. 2020. "Influence of Environment on Microbial Colonization of Historic Stone Buildings with Emphasis on Cyanobacteria." Heritage 3, no. 4: 1469-1483.

Review article
Published: 06 November 2020 in Environmental Pollution
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The fragmentation of plastic materials into nanoparticles of less than 1000 nm (secondary nanoplastics) and their possible accumulation in the environment is a recent matter of concern. There are still no suitable standard methods for determining the concentrations and chemical makeup of these particles in aquatic systems and the fate and effect of nanoplastics in the aquatic environment has been little explored, although there has been research using engineered nanoparticles as models. In this review, we give a summary of the (mainly laboratory-based) studies on the influences of nanoplastics. We aim to provide an updated overview of this emerging topic, reviewing the literature mainly from 2018 onwards and considering the effects of nanoplastics on ecosystems, their uptake and transport of polluting molecules, and the challenges that are faced by workers in this area. The review includes 119 references.

ACS Style

Christine C. Gaylarde; José Antonio Baptista Neto; Estefan Monteiro da Fonseca. Nanoplastics in aquatic systems - are they more hazardous than microplastics? Environmental Pollution 2020, 272, 115950 .

AMA Style

Christine C. Gaylarde, José Antonio Baptista Neto, Estefan Monteiro da Fonseca. Nanoplastics in aquatic systems - are they more hazardous than microplastics? Environmental Pollution. 2020; 272 ():115950.

Chicago/Turabian Style

Christine C. Gaylarde; José Antonio Baptista Neto; Estefan Monteiro da Fonseca. 2020. "Nanoplastics in aquatic systems - are they more hazardous than microplastics?" Environmental Pollution 272, no. : 115950.

Journal article
Published: 13 April 2020 in Sistemas & Gestão
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A maioria do patrimônio cultural construído na cidade do Rio de Janeiro, Brasil, é feito de gnaisse ou granito, e a exposição das fachadas ao ambiente poluído leva a uma forte degradação. Para entender estes processos meteorológicos, foram estudados cinco edifícios históricos na cidade. Estes exibiram manchas de ferro, desintegração granular, bolhas, fraturas incipientes e escamação de contornos e desenvolvimento de crosta negra. As amostras coletadas nestes edifícios foram examinadas na tentativa de compreender os mecanismos da meteorologia de superfície. Amostras de rochas foram coletadas em áreas que apresentavam sérios sintomas de decomposição de rochas. O conteúdo de ânions e cátions dos materiais de construção foi avaliado por espectrometria AA e análise cromatográfica de íons. As amostras também foram estudadas por microscopia de emissão de campo (SEM), análise petrográfica e pelo seu conteúdo biológico por SEM e análise de DNA usando Illumina Mi-Seq Next Generation Sequencing. Todas as análises químicas mostraram altas concentrações de sais solúveis, tais como halita e gesso, que desempenham um papel muito importante na resistência à intempérie da pedra. A FE-SEM com análise dispersiva de energia permitiu a detecção dentro da rocha de fungos filamentosos esparsos, grupos de células bacterianas, diatomáceas raras e bactérias filamentosas fotossintéticas especialmente interessantes incrustadas com gesso reprecipitado, mostrando a participação de microrganismos na degradação da pedra.

ACS Style

José Antônio Baptista Neto; Christine Gaylarde; Iwona Beech; Bernard J. Smith; John J. McAlister. Degradação de gnaisse e granito em fachadas de edifícios históricos no centro do Rio de Janeiro. Sistemas & Gestão 2020, 15, 80 -90.

AMA Style

José Antônio Baptista Neto, Christine Gaylarde, Iwona Beech, Bernard J. Smith, John J. McAlister. Degradação de gnaisse e granito em fachadas de edifícios históricos no centro do Rio de Janeiro. Sistemas & Gestão. 2020; 15 (1):80-90.

Chicago/Turabian Style

José Antônio Baptista Neto; Christine Gaylarde; Iwona Beech; Bernard J. Smith; John J. McAlister. 2020. "Degradação de gnaisse e granito em fachadas de edifícios históricos no centro do Rio de Janeiro." Sistemas & Gestão 15, no. 1: 80-90.

Editorial
Published: 18 May 2019 in International Biodeterioration & Biodegradation
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ACS Style

Christine Gaylarde; John Gillatt; Malcolm Greenhalgh. Foreword. International Biodeterioration & Biodegradation 2019, 141, 1 .

AMA Style

Christine Gaylarde, John Gillatt, Malcolm Greenhalgh. Foreword. International Biodeterioration & Biodegradation. 2019; 141 ():1.

Chicago/Turabian Style

Christine Gaylarde; John Gillatt; Malcolm Greenhalgh. 2019. "Foreword." International Biodeterioration & Biodegradation 141, no. : 1.

Journal article
Published: 01 March 2019 in Ocean & Coastal Management
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ACS Style

José Antonio Baptista Neto; Christine Gaylarde; Iwona Beech; Alex Cardoso Bastos; Valéria Quaresma; Diego Gomes de Carvalho. Microplastics and attached microorganisms in sediments of the Vitória bay estuarine system in SE Brazil. Ocean & Coastal Management 2019, 169, 247 -253.

AMA Style

José Antonio Baptista Neto, Christine Gaylarde, Iwona Beech, Alex Cardoso Bastos, Valéria Quaresma, Diego Gomes de Carvalho. Microplastics and attached microorganisms in sediments of the Vitória bay estuarine system in SE Brazil. Ocean & Coastal Management. 2019; 169 ():247-253.

Chicago/Turabian Style

José Antonio Baptista Neto; Christine Gaylarde; Iwona Beech; Alex Cardoso Bastos; Valéria Quaresma; Diego Gomes de Carvalho. 2019. "Microplastics and attached microorganisms in sediments of the Vitória bay estuarine system in SE Brazil." Ocean & Coastal Management 169, no. : 247-253.

Journal article
Published: 01 October 2018 in International Biodeterioration & Biodegradation
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ACS Style

Zakari Makama; Sukriye Celikkol; Akiko Ogawa; Christine Gaylarde; Iwona Beech. The issue with using DNA profiling as a sole method for investigating the role of marine biofilms in corrosion of metallic materials. International Biodeterioration & Biodegradation 2018, 135, 33 -38.

AMA Style

Zakari Makama, Sukriye Celikkol, Akiko Ogawa, Christine Gaylarde, Iwona Beech. The issue with using DNA profiling as a sole method for investigating the role of marine biofilms in corrosion of metallic materials. International Biodeterioration & Biodegradation. 2018; 135 ():33-38.

Chicago/Turabian Style

Zakari Makama; Sukriye Celikkol; Akiko Ogawa; Christine Gaylarde; Iwona Beech. 2018. "The issue with using DNA profiling as a sole method for investigating the role of marine biofilms in corrosion of metallic materials." International Biodeterioration & Biodegradation 135, no. : 33-38.

Evaluation study
Published: 18 September 2018 in Journal of Medical Entomology
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Culex quinquefasciatus Say (Diptera: Culicidae), an arboviral and filarial vector, is one of the most widespread mosquitoes in the world. The indiscriminate use of synthetic chemical insecticides has led to the development of resistance in mosquito populations worldwide. The effect of continuous exposure to crude extracts of Argemone mexicana, the Mexican poppy, on the development and growth stages of second-instar larvae of the mosquito was studied, along with qualitative chemical analysis of the different plant parts. Inhibition, mortality, and larval and pupal duration phases were assessed. Second-instar mosquito larvae were exposed to crude ethanol extracts of flowers, stems, and seeds. Flower extract exhibited the strongest larvicidal activity with LC50 and LC90 values after 24 h of exposure of 18.61 and 39.86 ppm, respectively, and 9.47 and 21.76 ppm after 48 h. Extracts from stem and seeds were significantly less effective. The flower extract registered a Growth Inhibition Index of 0.01 at 25 ppm, with stems and seeds registering 0.05 and 0.08, respectively, at 100 ppm (control group 1.02). Qualitative chemical analysis by thin-layer chromatography showed characteristic spots indicating the presence of alkaloids and flavonoids and phytochemical screening showed the presence of alkaloids, anthraquinones, flavonoids, tannins, and terpenoids in the various crude extracts. This is the first report of the effectiveness of an ethanol flower extract of A. mexicana on Cx. quinquefasciatus; it can be considered a promising alternative control for this mosquito species.

ACS Style

Carlos A Granados-Echegoyen; Manuel Jesús Chan-Bacab; Benjamín Otto Ortega-Morales; Alfonso Vásquez-López; Luicita Lagunez-Rivera; Fidel Diego-Nava; Christine Gaylarde. Argemone mexicana(Papaverales: Papavaraceae) as an Alternative for Mosquito Control: First Report of Larvicidal Activity of Flower Extract. Journal of Medical Entomology 2018, 56, 261 -267.

AMA Style

Carlos A Granados-Echegoyen, Manuel Jesús Chan-Bacab, Benjamín Otto Ortega-Morales, Alfonso Vásquez-López, Luicita Lagunez-Rivera, Fidel Diego-Nava, Christine Gaylarde. Argemone mexicana(Papaverales: Papavaraceae) as an Alternative for Mosquito Control: First Report of Larvicidal Activity of Flower Extract. Journal of Medical Entomology. 2018; 56 (1):261-267.

Chicago/Turabian Style

Carlos A Granados-Echegoyen; Manuel Jesús Chan-Bacab; Benjamín Otto Ortega-Morales; Alfonso Vásquez-López; Luicita Lagunez-Rivera; Fidel Diego-Nava; Christine Gaylarde. 2018. "Argemone mexicana(Papaverales: Papavaraceae) as an Alternative for Mosquito Control: First Report of Larvicidal Activity of Flower Extract." Journal of Medical Entomology 56, no. 1: 261-267.

Review
Published: 04 September 2018 in Heritage Science
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Nanoparticles (NPs) of metal oxides, sometimes referred to as engineered nanoparticles have been used to protect building surfaces against biofilm formation for many years, but their history in the Cultural Heritage world is rather short. Their first reported use was in 2010. Thereafter, a wealth of reports can be found in the literature, with Ti, Ag and Zn oxides being the major protagonists. As with all surface treatments, NPs can be leached into the surrounding environment, leading to potential ecotoxicity in soil and water and associated biota. Dissolution into metal ions is usually stated to be the main mode of toxic action and the toxic effects, when determined in the marine environment, decrease in the order Au > Zn > Ag > Cu > Ti > C60, but direct action of NPs cannot be ruled out. Although ecotoxicity has been assessed by a variety of techniques, it is important that a suitable standard test be developed and the European Unions’s Biocidal Product Registration group is working on this, as well as a standard test for antimicrobial efficacy to determine their impact on ecological processes of surrounding non-target organisms and their transformation products under realistic scenarios.

ACS Style

Manuela Reyes-Estebanez; Benjamín Otto Ortega-Morales; Manuel Chan-Bacab; Carlos Granados-Echegoyen; Juan Carlos Camacho Chab; Juan Enrique Pereañez Sacarias; Christine Gaylarde. Antimicrobial engineered nanoparticles in the built cultural heritage context and their ecotoxicological impact on animals and plants: a brief review. Heritage Science 2018, 6, 52 .

AMA Style

Manuela Reyes-Estebanez, Benjamín Otto Ortega-Morales, Manuel Chan-Bacab, Carlos Granados-Echegoyen, Juan Carlos Camacho Chab, Juan Enrique Pereañez Sacarias, Christine Gaylarde. Antimicrobial engineered nanoparticles in the built cultural heritage context and their ecotoxicological impact on animals and plants: a brief review. Heritage Science. 2018; 6 (1):52.

Chicago/Turabian Style

Manuela Reyes-Estebanez; Benjamín Otto Ortega-Morales; Manuel Chan-Bacab; Carlos Granados-Echegoyen; Juan Carlos Camacho Chab; Juan Enrique Pereañez Sacarias; Christine Gaylarde. 2018. "Antimicrobial engineered nanoparticles in the built cultural heritage context and their ecotoxicological impact on animals and plants: a brief review." Heritage Science 6, no. 1: 52.

Journal article
Published: 22 July 2018 in Science of The Total Environment
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Chemical and biological weathering were studied on two historic churches in the city of Rio de Janeiro, Brazil. The churches exhibited contour scaling, granular disintegration and black crust development. High levels of SO4 were found in façade stones of one church, São José, with significant levels of lead and copper. This suggests that vehicle emissions were important in stonework decay. Both gypsum and halite were detected, typical of buildings influenced by marine atmosphere and fuel-polluted environment. There was little bioweathering on this church, although the filamentous cyanobacterium Scytonema detected could be involved in black crust production. The other church (Nossa Senhora da Gloria) showed strong granular disintegration, with a green coloration on internal surfaces of some flakes removed for study. This church showed lower levels of geochemically important weathering compounds but was more colonized by fungi and cyanobacteria. The latter were shown by scanning electron microscopy to grow within the granitic gneiss stone and were probably involved in dissolution and redeposition of minerals. This church is rather far from the intense traffic of the centre of Rio de Janeiro and from Guanabara Bay, source of marine aerosols; it is located upon a green hill, where plant-associated fungi and cyanobacteria can readily gain access to the façade. The results of this study show the importance of local environment on the relative proportions of chemical and biological weathering of stone.

ACS Style

Christine Gaylarde; Jose Antonio Baptista-Neto; Carolina Tabasco-Novelo; Otto Ortega-Morales. Weathering of granitic gneiss: A geochemical and microbiological study in the polluted sub-tropical city of Rio de Janeiro. Science of The Total Environment 2018, 644, 1641 -1647.

AMA Style

Christine Gaylarde, Jose Antonio Baptista-Neto, Carolina Tabasco-Novelo, Otto Ortega-Morales. Weathering of granitic gneiss: A geochemical and microbiological study in the polluted sub-tropical city of Rio de Janeiro. Science of The Total Environment. 2018; 644 ():1641-1647.

Chicago/Turabian Style

Christine Gaylarde; Jose Antonio Baptista-Neto; Carolina Tabasco-Novelo; Otto Ortega-Morales. 2018. "Weathering of granitic gneiss: A geochemical and microbiological study in the polluted sub-tropical city of Rio de Janeiro." Science of The Total Environment 644, no. : 1641-1647.

Journal article
Published: 01 July 2018 in International Biodeterioration & Biodegradation
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ACS Style

Beata Gurarowska; Christine Gaylarde; John Gillatt. International Conference of Biodeterioration & Protection of Cultural Heritage, Łódz, September 8-9, 2016. International Biodeterioration & Biodegradation 2018, 131, 1 .

AMA Style

Beata Gurarowska, Christine Gaylarde, John Gillatt. International Conference of Biodeterioration & Protection of Cultural Heritage, Łódz, September 8-9, 2016. International Biodeterioration & Biodegradation. 2018; 131 ():1.

Chicago/Turabian Style

Beata Gurarowska; Christine Gaylarde; John Gillatt. 2018. "International Conference of Biodeterioration & Protection of Cultural Heritage, Łódz, September 8-9, 2016." International Biodeterioration & Biodegradation 131, no. : 1.

Journal article
Published: 01 April 2018 in Construction and Building Materials
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ACS Style

K. Loh; Christine Gaylarde; M.A. Shirakawa. Photocatalytic activity of ZnO and TiO2 ‘nanoparticles’ for use in cement mixes. Construction and Building Materials 2018, 167, 853 -859.

AMA Style

K. Loh, Christine Gaylarde, M.A. Shirakawa. Photocatalytic activity of ZnO and TiO2 ‘nanoparticles’ for use in cement mixes. Construction and Building Materials. 2018; 167 ():853-859.

Chicago/Turabian Style

K. Loh; Christine Gaylarde; M.A. Shirakawa. 2018. "Photocatalytic activity of ZnO and TiO2 ‘nanoparticles’ for use in cement mixes." Construction and Building Materials 167, no. : 853-859.

Journal article
Published: 11 February 2018 in International Journal of Environmental Research and Public Health
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Cadmium is a major heavy metal found in polluted aquatic environments, mainly derived from industrial production processes. We evaluated the biosorption of solubilized Cd2+ using the extracellular polymeric substances (EPS) produced by Bacillus sp. MC3B-22 and Microbacterium sp. MC3B-10 (Microbactan); these bacteria were originally isolated from intertidal biofilms off the coast of Campeche, Mexico. EPS were incubated with different concentrations of cadmium in ultrapure water. Residual Cd2+ concentrations were determined by Inductive Coupled Plasma-Optic Emission Spectrometry and the maximum sorption capacity (Qmax) was calculated according to the Langmuir model. EPS were characterized by X-ray photoelectron spectroscopy (XPS) before and after sorption. The Qmax of Cd2+ was 97 mg g−1 for Microbactan and 141 mg g−1 for MC3B-22 EPS, these adsorption levels being significantly higher than previously reported for other microbial EPS. In addition, XPS analysis revealed changes in structure of EPS after biosorption and showed that amino functional groups contributed to the binding of Cd2+, unlike other studies that show the carbohydrate fraction is responsible for this activity. This work expands the current view of bacterial species capable of synthesizing EPS with biosorbent potential for cadmium and provides evidence that different chemical moieties, other than carbohydrates, participate in this process.

ACS Style

Juan Carlos Camacho-Chab; María Del Refugio Castañeda-Chávez; Manuel Jesús Chan-Bacab; Ruth Noemí Aguila-Ramírez; Itzel Galaviz-Villa; Pascual Bartolo-Pérez; Fabiola Lango-Reynoso; Carolina Tabasco-Novelo; Christine Gaylarde; Benjamín Otto Ortega-Morales. Biosorption of Cadmium by Non-Toxic Extracellular Polymeric Substances (EPS) Synthesized by Bacteria from Marine Intertidal Biofilms. International Journal of Environmental Research and Public Health 2018, 15, 314 .

AMA Style

Juan Carlos Camacho-Chab, María Del Refugio Castañeda-Chávez, Manuel Jesús Chan-Bacab, Ruth Noemí Aguila-Ramírez, Itzel Galaviz-Villa, Pascual Bartolo-Pérez, Fabiola Lango-Reynoso, Carolina Tabasco-Novelo, Christine Gaylarde, Benjamín Otto Ortega-Morales. Biosorption of Cadmium by Non-Toxic Extracellular Polymeric Substances (EPS) Synthesized by Bacteria from Marine Intertidal Biofilms. International Journal of Environmental Research and Public Health. 2018; 15 (2):314.

Chicago/Turabian Style

Juan Carlos Camacho-Chab; María Del Refugio Castañeda-Chávez; Manuel Jesús Chan-Bacab; Ruth Noemí Aguila-Ramírez; Itzel Galaviz-Villa; Pascual Bartolo-Pérez; Fabiola Lango-Reynoso; Carolina Tabasco-Novelo; Christine Gaylarde; Benjamín Otto Ortega-Morales. 2018. "Biosorption of Cadmium by Non-Toxic Extracellular Polymeric Substances (EPS) Synthesized by Bacteria from Marine Intertidal Biofilms." International Journal of Environmental Research and Public Health 15, no. 2: 314.

Chapter
Published: 23 January 2018 in Advanced Materials for the Conservation of Stone
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Nanoparticle-based materials are applied in the conservation of cultural heritage for their consolidating and self-cleaning abilities. Recently, nanoparticles (NPs) have been found to possess inherent antimicrobial activity, which has stimulated their application in the control of microbial colonization of stone and other mineral materials. A literature survey shows diverse testing procedures and limited research on the antimicrobial effectiveness of nanomaterials under real conditions. Most research reports laboratory-scale studies, employing either mono- or dual species (two organisms) assays over short-term incubation of days or weeks. Antimicrobial effectiveness is often assessed using microbiological, microscopy-based methods and surface colorimetry. There is a potential adverse ecotoxicological impact of NPs after release from treated surfaces. This chapter covers the antimicrobial properties of NPs and their limitations and advantages for application on built cultural heritage.

ACS Style

B. O. Ortega-Morales; M. M. Reyes-Estebanez; Christine Gaylarde; Juan Carlos Camacho Chab; Patricia Sanmartín; M. J. Chan-Bacab; C. A. Granados-Echegoyen; Juan Enrique Pereañez Sacarias. Antimicrobial Properties of Nanomaterials Used to Control Microbial Colonization of Stone Substrata. Advanced Materials for the Conservation of Stone 2018, 277 -298.

AMA Style

B. O. Ortega-Morales, M. M. Reyes-Estebanez, Christine Gaylarde, Juan Carlos Camacho Chab, Patricia Sanmartín, M. J. Chan-Bacab, C. A. Granados-Echegoyen, Juan Enrique Pereañez Sacarias. Antimicrobial Properties of Nanomaterials Used to Control Microbial Colonization of Stone Substrata. Advanced Materials for the Conservation of Stone. 2018; ():277-298.

Chicago/Turabian Style

B. O. Ortega-Morales; M. M. Reyes-Estebanez; Christine Gaylarde; Juan Carlos Camacho Chab; Patricia Sanmartín; M. J. Chan-Bacab; C. A. Granados-Echegoyen; Juan Enrique Pereañez Sacarias. 2018. "Antimicrobial Properties of Nanomaterials Used to Control Microbial Colonization of Stone Substrata." Advanced Materials for the Conservation of Stone , no. : 277-298.

Journal article
Published: 01 November 2017 in International Biodeterioration & Biodegradation
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Jonathan I. Brauer; Sukriye Celikkol-Aydin; Jan A. Sunner; Christine Gaylarde; Iwona B. Beech. Metabolomic imaging of a quaternary ammonium salt within a marine bacterial biofilm on carbon steel. International Biodeterioration & Biodegradation 2017, 125, 33 -36.

AMA Style

Jonathan I. Brauer, Sukriye Celikkol-Aydin, Jan A. Sunner, Christine Gaylarde, Iwona B. Beech. Metabolomic imaging of a quaternary ammonium salt within a marine bacterial biofilm on carbon steel. International Biodeterioration & Biodegradation. 2017; 125 ():33-36.

Chicago/Turabian Style

Jonathan I. Brauer; Sukriye Celikkol-Aydin; Jan A. Sunner; Christine Gaylarde; Iwona B. Beech. 2017. "Metabolomic imaging of a quaternary ammonium salt within a marine bacterial biofilm on carbon steel." International Biodeterioration & Biodegradation 125, no. : 33-36.

Journal article
Published: 01 September 2017 in International Biodeterioration & Biodegradation
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ACS Style

Akiko Ogawa; Sukriye Celikkol-Aydin; Christine Gaylarde; Jose Antônio Baptista-Neto; Iwona Beech. Microbial communities on painted wet and dry external surfaces of a historic fortress in Niterói, Brazil. International Biodeterioration & Biodegradation 2017, 123, 164 -173.

AMA Style

Akiko Ogawa, Sukriye Celikkol-Aydin, Christine Gaylarde, Jose Antônio Baptista-Neto, Iwona Beech. Microbial communities on painted wet and dry external surfaces of a historic fortress in Niterói, Brazil. International Biodeterioration & Biodegradation. 2017; 123 ():164-173.

Chicago/Turabian Style

Akiko Ogawa; Sukriye Celikkol-Aydin; Christine Gaylarde; Jose Antônio Baptista-Neto; Iwona Beech. 2017. "Microbial communities on painted wet and dry external surfaces of a historic fortress in Niterói, Brazil." International Biodeterioration & Biodegradation 123, no. : 164-173.