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.


Microbial Strikethrough

Determination of the ability of a fabric to prevent the penetration of bacterial, fungal and viral microorganisms.

Products that can be tested

Description of Test

  • The test sample is placed into the upper section of an impaction apparatus connected to a pump. A collecting vessel containing a diluting buffer is attached to the inner section of the unit.
  • The samples of interest are clamped to the upper section of the apparatus and a 100 µl inoculum of the microbe of interest is distributed in small droplets across the surface of the test material.
  • The pump is switched on to allow for airflow to be applied through the test material. Any microbes that may pass through are impacted into a sterile collection buffer.
  • Following a period of airflow at a specified rate and time the pump is stopped and the collecting buffer is removed.
  • The collecting buffer is serially diluted and plated on an appropriate agar for the enumeration of colony forming units. To apply this test to viruses, TCID50 counts are performed to determine the level of viral penetration.

Third Party Validation
On passing this test, the product can be labelled as tested by airmid healthgroup in support of any claim relating to the test and data received.

Turnaround Time
4 weeks from receipt of samples



More Information


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airmid Health Related Claim Validation Services for Textiles

Textiles Informational PDF