Cristina Viegas

Cristina A. Viegas

assistant professor

C-7815-2011

iBB Group: bsrg

cristina.viegas@tecnico.ulisboa.pt

Expertise: Environmental Microbiology, Environmental Toxicology, Toxicity Bioassays, Bacterial Bioremediation, Construction Materials Biocolonization

Short Bio:

Cristina A. Viegas is a researcher in biological sciences, mostly dedicated to environmental microbiology and toxicology fields. She has a graduation in Chemical Engineering - Chemistry and Processes (IST; 1984), a Master in Biotechnology - Biochemical Engineering (IST; 1988), a PhD in Biotechnology (IST; 1993) and a Post-Doc in Molecular Microbiology (Institute of Virology and Environmental Microbiology, Oxford, UK; 1995). In the last years, her research mostly addressed yeast-based bioassays for the assessment of potential toxicity of pesticides and environmental samples, bacterial biodegradation and bioremediation of herbicide contaminated sites and phylogenetic characterization of microbial communities in building façade biocolonization stains.

ORCID

SCOPUS

CIÊNCIA VITAE

Research Focus:

Potential ecotoxicity and microbial biodegradation of xenobiotics associated with pesticide formulations, wastewaters and construction materials.

Franca, R.D.G., Sousa, S., Almeida, C., Rodrigues, A.M., Pinheiro, H.M., Viegas, C.A. & Lourenço, N.D. (2025) Impact of silver nanoparticles on dye conversion and detoxification potential during long-term operation of an aerobic granular sludge sequencing batch reactor for textile wastewater treatment. Ecotoxicology and Environmental Safety, 308, 119473. https://doi.org/10.1016/j.ecoenv.2025.119473

Viegas, C.A., Borsoi, G., Moreira, L.M., Parracha, J.L., Nunes, L., Malanho, S., Veiga, R., & Flores-Colen, I. (2023). Diversity and distribution of microbial communities on the surface of External Thermal Insulation Composite Systems (ETICS) facades in residential buildings. International Biodeterioration & Biodegradation, 184, 105658. https://doi.org/10.1016/j.ibiod.2023.105658

Viegas, C.A. (2021). Chapter 4 – Microbial bioassays in environmental toxicity testing. Advances in Applied Microbiology, 115, 115-158. https://doi.org/10.1016/bs.aambs.2021.03.002

Viegas, C.A., Silva, V.P., Varela, V.M., Correia, V., Ribeiro, R., & Moreira-Santos, M. (2019). Evaluating formulation and storage of Arthrobacter aurescens strain TC1 as a bioremediation tool for terbuthylazine contaminated soils: Efficacy on abatement of aquatic ecotoxicity. Science of the Total Environment, 668, 714-722. https://doi.org/10.1016/j.scitotenv.2019.02.355

Gil, F.N., Gonçalves, A.C., Becker, J.D., & Viegas, C.A. (2018) Comparative analysis of transcriptomic responses to sub-lethal levels of six environmentally relevant pesticides in Saccharomyces cerevisiae. Ecotoxicology, 27, 871-889. doi: 10.1007/s10646-018-1929-1

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Cristina A. Viegas