About the Platform

Objectives, scientific background, curation methodology, and research group

Mission, Core Objectives & Target Audiences

Bacterial biofilms represent one of the foremost global health and industrial challenges of our time. Enclosed within a self-produced extracellular polymeric substance (EPS) matrix, biofilm-associated bacteria exhibit recalcitrance and tolerance to conventional antibiotics and host immune defenses up to 1,000-fold greater than their planktonic counterparts. They are responsible for over 80% of human microbial infections—including catheter encrustations, orthopaedic and cardiovascular implants, chronic wounds, and cystic fibrosis pulmonary infections—as well as extensive biofouling and biocorrosion across industrial infrastructures.

The Biofilms Structural Database (BSD) was established in 2020 by researchers at the University of Porto (BioSIM / FEUP) and University of Coimbra (BIA Lab), published in Trends in Biotechnology (Cell Press), to provide the scientific community with the first specialized, open-access repository unifying atomic-resolution macromolecular targets and chemical ligands strictly associated with bacterial biofilm developmental mechanisms.

"Targeting biofilm-specific mechanisms without affecting bacterial viability represents an innovative, non-biocidal anti-virulence strategy that reduces selective evolutionary pressure for resistance. BSD was designed as the central structural platform to accelerate this paradigm shift."
— Magalhães et al. (2020), Trends in Biotechnology (DOI: 10.1016/j.tibtech.2020.04.002)

Intended Users & Scientific Audiences

As described in the foundational publication, BSD was specifically constructed to serve four complementary scientific sectors:

Computational Chemists & Modelers

Virtual screening, molecular docking, molecular dynamics (MD), pharmacophore modeling, and binding pocket volume calculations across 498 high-resolution 3D structures and AlphaFold DB models.

Medicinal Chemists & Drug Designers

Structure-based drug design (SBDD) of quorum-sensing inhibitors (QSIs), matrix disruptors, and anti-adhesion molecules using 131 co-crystallized chemical ligands, SMILES, and ChEMBL bioactivities.

Microbiologists & Structural Biologists

Dissecting the atomic mechanisms governing the 5 stages of biofilm formation across 47 bacterial species, with UniProt functional annotations, oligomerization states, and catalytic cofactors.

Clinical & Industrial Innovators

Developing non-biocidal interventions for medical device infections (implants, catheters, endotracheal tubes) and mitigating industrial biocorrosion and membrane biofouling.

Official Portal Migration (BiofilmsDB v2.0): Following the evolution of the BioSIM group into the BIA Lab (bialab.pt), the official repository of The Biofilms Structural Database (formerly hosted at www.biofilms.biosim.pt) is now permanently hosted at https://biofilmsdb.com.
Bacterial Focus Mandate: The BSD curates structural targets across Gram-negative and Gram-positive bacterial species. Non-bacterial models (such as opportunistic fungi) are segregated into dedicated archives to preserve strict taxonomic consistency and biochemical classification.

Scientific Leadership & Project Supervision

The Biofilms Structural Database was conceptualized, curated, and led under the supervision of Dr. Sérgio F. Sousa and Dr. Manuel Simões, uniting expertise in computational structural biology and experimental biofilm microbiology:

Dr. Sérgio F. Sousa

Dr. Sérgio F. Sousa

Group Leader, BIA Lab · Computational (Bio)chemist & AI in Bioengineering
CERES, DEQ, FCTUC, Univ. Coimbra & BioSIM FMUP
Co-Coordinator

Primary Affiliation: Principal Investigator & Group Leader of the BIA Lab (Bioengineering, Artificial Intelligence, and Molecular Simulation Laboratory), CERES (Chemical Process Engineering and Forest Products Research Centre), Department of Chemical Engineering (DEQ), Faculty of Sciences and Technology (FCTUC), University of Coimbra, Portugal.

Secondary / Historical Affiliation: Founder and Principal Investigator of the BioSIM Research Group, Department of Biomedicine, Faculty of Medicine, University of Porto (FMUP).

Scientific Expertise: Computational enzymology (QM/MM), molecular dynamics (MD) simulations, protein-ligand docking, virtual screening, free energy calculations, and machine learning methods applied to biomolecular engineering and drug discovery.

Role in BSD: Project co-coordinator leading structural bioinformatics curation, molecular data modeling, chemical cross-referencing, and computational infrastructure development.

BIA Lab Website Email ORCID Scholar Scopus
Dr. Manuel Simões

Dr. Manuel Simões

Associate Professor with Aggregation · Biofilm Science & Engineering
LEPABE / ALiCE, DEQ, Faculty of Engineering, Univ. Porto (FEUP)
Co-Coordinator

Primary Affiliation: Associate Professor with Aggregation, Department of Chemical Engineering, Faculty of Engineering, University of Porto (FEUP), Portugal.

Research Laboratories: Senior Researcher at LEPABE (Laboratory for Process Engineering, Environment, Biotechnology and Energy) and ALiCE (Associate Laboratory in Chemical Engineering).

Scientific Expertise: Applied biofilm microbiology, molecular mechanisms of antimicrobial tolerance and phenotypic resistance, surface adhesion kinetics, disinfection protocols, and characterization of natural and synthetic antibiofilm compounds.

Role in BSD: Project co-coordinator leading microbiological target validation, mechanism classification, clinical relevance assessment, and biological consistency across bacterial families.

FEUP Profile Email ORCID Scholar

How to Cite

If you use the Biofilms Structural Database in academic research, drug discovery projects, or scientific publications, please cite the foundational publication in Trends in Biotechnology:

APA Citation:
Magalhães, R. P., Vieira, T. F., Fernandes, H. S., Melo, A., Simões, M., & Sousa, S. F. (2020). The Biofilms Structural Database. Trends in Biotechnology, 38(9), 937–940. https://doi.org/10.1016/j.tibtech.2020.04.002
BibTeX Reference
@article{Magalhaes2020BiofilmsDB,
  author    = {Magalh{{\~{{a}}}}es, Rita P. and Vieira, Tatiana F. and Fernandes, Henrique S. and Melo, Andr{{'{e}}} and Sim{{\~{{o}}}}es, Manuel and Sousa, S{{'{e}}rgio F.},
  title     = {The Biofilms Structural Database},
  journal   = {Trends in Biotechnology},
  volume    = {38},
  number    = {9},
  pages     = {937--940},
  year      = {2020},
  month     = {sep},
  publisher = {Elsevier},
  doi       = {10.1016/j.tibtech.2020.04.002},
  url       = {https://doi.org/10.1016/j.tibtech.2020.04.002}
}
Open Science & Licensing: All curated database records are distributed openly under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. The software platform and parsing toolkits are provided under the open-source MIT License.