Don Whitley Scientific

Don Whitley Scientific Limited (DWS) develops, manufactures and sells equipment and associated products for microbiology and cell culture applications worldwide.

The leading international supplier to the microbiology and tissue culture industries. 

Don Whitley Scientific Limited (DWS) develops, manufactures and sells equipment and associated products for microbiology and cell culture applications worldwide.  

They sell to both public and private sectors in a variety of scientific disciplines in organisations such as health protection agencies, pharmaceutical companies, food laboratories, contract microbiology organisations, hospitals, university research departments, water analysis companies and other research facilities.  

In the UK, Australia and Germany products are sold directly. In other parts of the world products are sold and serviced via a carefully chosen distributor network.  

The microbiology laboratory began operation in the late 1980s, has been GLP compliant since 1994 and was completely rebuilt on a new site in 2018. The lab performs studies in diverse areas of microbiology and have particular expertise in evaluating antimicrobial agents, including susceptibility testing of anaerobic bacteria and other organisms with fastidious growth requirements.  

DWS’s microbiologists have experience in industrial, pharmaceutical and clinical areas. They operate from purpose-built laboratories and have the skills and equipment to culture diverse aerobic, anaerobic and microaerophilic bacteria. They specialise in working with fastidious organisms such as Mycoplasma and Brachyspira species, including antimicrobial susceptibility testing with these organisms.  

More recently, DWS has developed protocols for working with bacterial strains originating from the normal healthy human microbiota, which are being developed as live biotherapeutic products to treat a range of diseases.  

The lab offers quality control (e.g. viable counts) and antimicrobial susceptibility testing of such strains, some of which have very specific growth requirements. In summary, the microbiological tests that can be conducted include:  

  • Minimal Inhibitory Concentration (MIC)  
  • Minimal Bactericidal Concentration (MBC)  
  • Antifungal susceptibility testing  
  • Antimicrobial kill curves  
  • In vitro efficacy testing of antimicrobial wound dressings  
  • Determination of post-antibiotic effect  
  • Microbiological assays  
  • Culture / enumeration / susceptibility testing of live biotherapeutic products and candidate strains 

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