Perfectus Biomed support companies who produce products for chronic wounds by providing materials, planktonic and biofilm testing.

Microbial infection is the cause of the majority of chronic wounds. As such, wounds that are not clinically infected are almost certainly colonised. These types of chronic wounds can therefore be deemed to be at risk of infection.

We support the research and development projects of companies who create products for chronic wounds. We aim to help decrease patient pain as well as the number of amputations resulting from long term chronic wounds, with the hope to improve patient quality of life. We carry out safety and efficacy testing to ATCC, BS EN and ASTM standards. Examples include AATCC Test Method 100, BS EN ISO 11737-1 and ASTM E2149. GLP compliant testing is also available.

Perfectus Biomed can also help support your regulatory submission and assist you in demonstrating the USP of commercially available products.

We have experience working with:

  • Wound dressings
  • Topical wound agents
  • Dressing removal agents
  • Irrigation solutions
  • Plasma devices
  • NPWT devices
  • MMPs

We offer support with:

  • 510(k) submission
  • FDA approval
  • Dossier submission
  • Irrigation solutions
  • Grant applications

Customised Test Methods

  • Direct contact dressings testing, a method adapted from Gallant-Behn et al (2005).
  • Shake-flask method adapted from upon a method in Parsons et al (2005).
  • Bacterial barrier testing.
  • Viral/phage barrier testing.
  • CDC biofilm reactor model adapted for testing wound dressings based on ASTM E2871 and ASTM E2562.
  • Drip flow reactor model adapted for testing wound dressings based on ASTM E2647.
  • Porcine skin explant drip flow model based on ASTM E2647.
    Wicking absorbency.
  • MMP modulation testing.
  • Dressing material strength testing – wet and dry.
  • Peel force testing.

Standard Test Methods

  • AATCC Test Method 100: Antibacterial Finishes on Textile Materials.
  • Modified AATCC Test Method 100
  • AATCC Test Method 147: Antibacterial Activity Assessment of Textile Materials: Parallel Streak Method.
  • BS EN ISO 11737-1: Sterilisation of Medical devices. Microbiological Methods. Determination of a population of microorganisms on products (Bioburden).
  • BS EN 13726-1: Test methods for primary wound dressings. Aspects of absorbency: Free swell absorption, fluid retention and absorption under a fixed load.
  • BS EN 13726-2: Test methods for primary wound dressings. Moisture vapour transmission rate (MVTR) of permeable film dressings. Section 3.2: Moisture Vapour Transmission Rate – In contact with vapour.
  • BS EN 13726-2: Test methods for primary wound dressings. Moisture vapour transmission rate of permeable film dressings. Section 3.3: Moisture Vapour Transmission Rate – In contact with liquid.
  • BS EN 13726-3: Test methods for primary wound dressings. Waterproofness.
  • BS EN 13726-4: Test methods for primary wound dressings. Conformability.
  • BS EN ISO 20743:Textiles, Determination of antibacterial activity of antibacterial finished products.
  • BS EN IS0 20645: Textile fabrics. Determination of antibacterial activity. Agar diffusion plate test.
  • ASTM E2149: Standard Test Method for determining the antimicrobial activity of immobilised antimicrobial agents under dynamic contact conditions.

Our library of test organisms includes: 

Acinetobacter baumannii
Actinomyces naeslundii
Adenovirus (human)
Aspergillus brasiliensis
Aspergillums niger
Aureobasidium pullulans
Bacillus cereus
Bacillus subtilis
Camplylobacter jejuni
Candida albicans

Candida auris
Clostridium difficile
Corynebacterium minutissimum
Enterobacter cloacae
Enterococcus faecalis
Enterococcus faecium (VRE)
Enterococcus hirae

Escherichia coli
Fusobacterium nucleatum
Haemophilus influenzae
Heliocbacter pylori
Halomonas magadiensis
Klebsiella pneumoniae
Lactobacillus casei
Neisseria gonorrhoeae
Neisseria subflava
Porphyromonas ginigvalis
Prevotella nigrescens
Propionibacterium acnes
Proteus mirabilis
Pseudomonas aeruginosa
Salmonella enteritidis
Shigella dysenteriae

Staphylococcus aureus (MRSA and MSSA)
Staphylococcus epidermidis
Staphylococcus haemolyticus
Stenotrophomonas maltophilia
Streptococcus mutans
Streptococcus oralis
Streptococcus pneumoniae
Streptococcus pyogenes
Streptococcus zooepidemicus
Tannerella forsythia
Trichophyton rubrum
Veillonella dispar

WHO Priority organisms.
ESKAPE pathogens.

Other- please ask.

Medical Devices

We can use the PMM to test for bacterial adhesion to and host cell toxicity of experimental devices.

Learn more here


Urogenital Health

Since much of the human genital tract is composed of mucosal tissue, the PMM can be used for predictive preclinical testing of compounds or products related to urogenital health.

Learn more here

Inflammation and Biocompatibility

The PMM offers a unique way to investigate inflammatory cytokine concentrations in a cost-effective manner. We can perform ELISAs and multiplex assays to determine whether experimental compounds are pro- or anti-inflammatory.

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Infectious Diseases

Mucosal tissue is an ideal environment for microbial growth, making the PMM an excellent application for testing the efficacy of products to treat infectious disease pathogens. We can test for efficacy against planktonic and biofilm infections with this model.

Learn more here

Get in Touch

We are happy to help with your microbiological requirements and with any other queries you may have.

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Perfectus Biomed

Perfectus Biomed, a UKAS accredited microbiological contract testing company, represents the new wave of scientific businesses that are proud to call Daresbury home.

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