Esmeralda Herrero BSc. PhD


Esmeralda Herrero graduated from University College Dublin (UCD) with a BSc in Pharmacology and completed a PhD in Microbiology in University College Dublin. Her research investigated bacterial proteases and their role in prion decontamination and was filed into a UK patent in 2015. Following her PhD, Esmeralda worked for a year as research and development scientist for a novel biotech company before her role as scientific officer in virology in airmid healthgroup.

Esmeralda has over 5 years research experience in mammalian cell culture, molecular biology, bacterial culturing, infectious assays, protein purification, protein biochemistry and laboratory management


Tristan Russell BSc. PhD


Tristan graduated from the University of Leeds with a BSc in Microbiology. During his degree, Tristan completed a one-year internship at a pharmaceutical company where he gained experience of working in an industrial laboratory. Tristan moved to Ireland in 2014 after choosing to study for a PhD at University College Dublin. The PhD research used molecular biology techniques to study infectious disease, specifically host-virus interactions. Tristan recently graduated from his PhD and joined the virology team at airmid healthgroup in the spring of 2019.  


Kevin Ellison


Kevin is in his third year at DCU where he has been studying Genetics and Cell biology. He is working in the Environmental Chambers under the supervision of Jake Behan.


ISO 27447:2009


Photocatalysts are composed of semi-conducting metal oxides such as titanium dioxide and zinc oxide. The ISO 27447:2009 standard is designed to determine the anti-bacterial activity of materials containing the photocatalyst or have photocatalytic films on their surface, by enumerating bacteria after exposure to ultraviolet (UV) light. ISO 27447:2009, though intended for use with ceramics, can also be used with other photocatalytic-treated materials such as textiles, glass and plastics.

Description of Test

  • Bacteria (Escherichia coli and Staphylococcus aureus) are inoculated onto the test and control materials.
  • After a period of UV light exposure, viable bacteria are extracted from the test and control materials and enumerated on a nutrient agar medium.
  • The efficacy of the anti-bacterial treatment in response to UV light is calculated by comparing the test and the control materials according to criteria outlined in the standard.
  • The antibacterial effect is also assessed in the dark and incorporated into the calculations.
  • Other bacteria or fungal species can be used upon request.

Submitting a Sample

Identify the number of samples you wish to test and we will provide you with a quote. Upon receipt of samples and payment we will test the samples in accordance to the standard and provide a report of the results.

Turnaround Time

We aim to report your results within 3 weeks of sample receipt

Third Party Validation

On passing this test, the product can be labelled as having been tested by airmid healthgroup to ISO 27447:2009 in support of any claim relating to the test and data received.




The quality of the third party data we received from airmid healthgroup helped us showcase our innovative strategy of licensing this novel technology at a prestigious international scientific event, the European Innovation Convention. Ultimately this will allow us add value and differentiate our customer offerings through a focus on health and indoor air quality.
Mr. Robert Hickson, MD of VitrA Ireland

More Information


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airmid Health Related Claim Validation Services for Textiles

Textiles Informational PDF