ArticleBMC microbiology2018
Defining conditions for biofilm inhibition and eradication assays for Gram-positive clinical reference strains.
Article in BMC microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers.
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Who cites it
92 citing papers in PubMed, 170 citations in OpenAlex.
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- Employment of a Resazurin Viability-Based Assay for Minimum Inhibitory and Bactericidal Concentration Determination.Pharmaceuticals (Basel, Switzerland) · 2026Article
- Experimental biofilm models for pharmacokinetic and pharmacodynamic investigations: bridging in vitro, ex vivo and in vivo systems.The Journal of antimicrobial chemotherapy · 2026Review
- Can commensals alter pathogen's antibiotic resistance during co-culture?Journal of medical microbiology · 2026Article
- Assessment of Antibiotic Sensitivity in Biofilms Using GelMA Hydrogel Microspheres.Gels (Basel, Switzerland) · 2026Article
- Z‑Amino Acids Present Innovative Antimicrobial and Antibiofilm Properties against Methicillin-Susceptible and -ResistantACS omega · 2026Article
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- Whole genome surveying and metabolomic profiling aided navigation of therapeutic plethora of Streptomyces melanogenes WPF1 isolated from Pinus patula rhizosphere.Bioresources and bioprocessing · 2025Article
- Antimicrobial peptides derived from human ameloblastin targeting biofilms.BMC oral health · 2025Article
- Extraction and characterization of antibacterial marine polysaccharide K-Carrageenan from Kappaphycus alvarezii against multidrug-resistant wound associated bacteria.Scientific reports · 2025Article
- The C-terminal extension of calprotectin mediates zinc chelation and modulates Staphylococcus aureus biomass accumulation.Protein science : a publication of the Protein Society · 2025Article
- Impact of Biofilm Formation by VaginalJournal of fungi (Basel, Switzerland) · 2025Article
- Control ofFuture microbiology · 2025Article
32 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBiofilms are formed by a complex bacterial community encapsulated by a polymeric matrix, with strong adherent properties and persistent phenotype. Biofilms are considered one of the most challenging areas of modern medicine. Existing antibiotics have been developed against free-floating bacterial cells, and thus, many treatments of biofilm-related infection fail. In this study, we compared the effects of different media on biofilm growth of clinical reference strains of Staphylococci and Enterococci, including multi-drug resistant representatives. Further, we optimized the resazurin-based assay for determining the minimal biofilm inhibitory concentration (MBIC) of standard antibiotics, and evaluated its use for the determination of minimal biofilm eradication concentration (MBEC).
resultsWe showed that tryptic soy broth supplemented with 1% glucose was an optimal media for maximum biofilm growth of all strains tested, with an extended incubation time for Enterococci. A range of parameters were tested for the resazurin assay, including concentration, temperature and time of incubation. Using quality parameters to analyze the assay's performance, the conditions for the resazurin assay were set as follows: 4 μg/mL and 8 μg/mL, with incubation at 25 °C for 20 min and 40 min for Staphylococci and Enterococci, respectively.
conclusionsIn summary, we defined conditions for optimal biofilm growth and for standardized resazurin assay for MBIC determination against six Gram-positive clinical reference strains. We also observed that MBEC determination by the resazurin-based assay is limited due to the poor detection limit of the assay. Complementary cell counting data is needed for precise determination of MBEC.
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