Projects per year
Personal profile
Overview
Professor Ian Johnston is the Director of the Biodetection Technologies Hub, Director of the Wolfson Centre for Biodetection & Instrumentation Research, and a founding member of the Microfluidics & Microengineering Research Group at the University of Hertfordshire.
Providing multidisciplinary research leadership to advance biodetection technologies, addressing critical challenges in biosecurity through innovative research and development. Spanning a range of application areas including microfluidic biological sample processing and detection technologies, antimicrobial nanomaterials for antiviral and antibacterial applications, bioaerosol collection and identification for the protection of plant, animal and human health.
His research focuses on academic and industrial experimental research into microfluidic lab-on-a-chip devices and integrated systems for laboratory prototype and in-field Biodetection applications. Expertise includes droplet microfluidics, EWOD, microfluidic magnetic separation, biological sample processing and microfluidic flow control, including micropumping and micromixing. He obtained his PhD in microfluidic systems for erythrocyte investigation from the University of Hertfordshire after obtaining an Honours degree in Physics from the University of Leeds in 1994 and he has over 30 years of experience in applied microfluidic and bioaerosol technologies.
He is a member of the Microsystems Network, UK Aerosol Society and teaches Introduction to Bioaerosols as part of the EPSRC Centre for Doctoral Training in Aerosol Science.
Current biodetection R&D project application areas include biowarfare, food security, aquaculture and environmental monitoring, crop protection, woodland & plant biosecurity. Clients and collaborators include, amongst others, the UK MoD and the Dstl, HMGCC, DRDC, DSTG, The Pirbright Institute, Rothamstead Research, TTZ Bremerhaven, and Optisense Ltd. Current academic collaborators include the Universities of Bristol, UCL, Bath, Cambridge, Cranfield, Leeds and Manchester.
Personal Linkedin profile:
www.linkedin.com/in/microfluidics-aerosols-biodetection
Microfluidics research:
http://go.herts.ac.uk/microfluidics
Biodetection research:
http://go.herts.ac.uk/biodetection-technologies
Twitter: @UHMicrofluidics
https://twitter.com/UHMicrofluidics
Research interests
- Microfluidics
- Biosensing
- Bioaerosols
- Biodetection
- Digital Microfluidics (EWOD)
- Instrumentation Development
- Micropumps & Micromixing
- Rapid Polymer Prototyping
Commercial and public engagement
- Microfluidics Consultancy
- Biodetection Instrumentation Development
- Biodetection Systems
Teaching specialisms
- Bioaerosols & Technologies
- System Integration
- Microfluidics
- Microfabrication
- Microengineering
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Collaborations and top research areas from the last five years
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Exploring hydrogel-based bioaerosol sensing
Johnston, I. (PI), Dimov, N. (CoI), Coudron, L. (CoI) & Cook, M. T. (CoI)
1/10/24 → 30/09/28
Project: Research
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CIBD: Compact Integrated Biological Detection
Coudron, L. (PI), Johnston, I. (CoPI), Dimov, N. (CoI), Munro, I. (CoI), Kaye, R. (CoI), Weerasiri, L. (CoI), McCluskey, D. (CoI) & Tan, C. (CoI)
1/09/23 → 31/12/26
Project: Research
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Micro-FloTec: Microscale enabled advanced flow and heat transfer technologies featuring high performance and low power consumption
Wu, H. (PI), Johnston, I. (CoI), McCluskey, D. (CoI), Ren, G. (CoI), Chaychian, S. (CoI) & Day, R. (CoI)
1/06/23 → 31/05/27
Project: Research
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Digital Microfluidic Lab-on-a-chip for multiplex detection of biomarkers in exhaled breath
Coudron, L. (PI), Urbano, L. (CoI) & Johnston, I. (CoI)
1/09/22 → 30/09/26
Project: Research
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Air DNA Sampling
Johnston, I. (PI), Dimov, N. (CoPI), Kaye, R. (CoI), Coudron, L. (CoI) & Weerasiri, L. (CoI)
24/07/23 → 16/10/23
Project: Research
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A novel concept for aerosol collection: Corona-free actuation of aerosolised microspheres
Chung, E., Heidari Koochi, M., Weerasiri, L., Munro, I., Johnston, I., Chrysanthou, A. & Coudron, L., 28 Oct 2025.Research output: Contribution to conference › Poster › peer-review
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Poly(vinyl alcohol)-Agar Double Network Hydrogels: Linking Formulation to Mechanical and Rheological Properties.
Zhang, B., Alves da Silva, M., Johnston, I., Aspinall, S. & Cook, M. T., 30 Sept 2025, In: Macromolecular Chemistry and Physics. 9 p., e00257.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
Aerosol collection with suspended liquid films
Heidari Koochi, M., Coudron, L., Chung, E., Munro, I., Johnston, I. & McCluskey, D., 4 Sept 2025, (Unpublished).Research output: Contribution to conference › Presentation › peer-review
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Urinary Extracellular Vesicle Signatures as Biomarkers in Prostate Cancer Patients
Lange, S., Bernstein, D. E., Dimov, N., Puttaswamy, S., Johnston, I., Kraev, I., Needham, S. R., Vasdev, N. & Inal, J., 18 Jul 2025, In: International Journal of Molecular Sciences (IJMS). 26, 14, 19 p., 6895.Research output: Contribution to journal › Article › peer-review
Open AccessFile16 Downloads (Pure) -
Urinary Extracellular Vesicle Signatures as Biomarkers in Prostate Cancer Patients
Lange, S., Bernstein, D. E., Dimov, N., Puttaswamy, S., Johnston, I., Kraev, I., Needham, S. R., Vasdev, N. & Inal, J. M., Jul 2025, In: International Journal of Molecular Sciences. 26, 14, 6895.Research output: Contribution to journal › Article › peer-review
Open Access