Micro-technologies for medical diagnostics
Submitting Institution
University of SouthamptonUnit of Assessment
Electrical and Electronic Engineering, Metallurgy and MaterialsSummary Impact Type
EconomicResearch Subject Area(s)
Engineering: Interdisciplinary Engineering
Summary of the impact
Pioneering research in miniature in-vitro microfluidic diagnostic
systems at the University of Southampton has produced major economic
impacts by driving new business activities in major multinational
corporations. Philips Research Cambridge are investing £5 million p.a. and
employing 12 FTEs to develop new Point of Care systems for rapid diagnosis
and management of disease based on the research. Patented advances in
electronic fluid-handling technologies is driving £3 million R&D
investment in Sharp Labs Europe in partnership with Southampton to develop
a rapid assay platform for prompt detection of antibiotic-resistant
bacterial infections. Health impacts from the research are the provision
of new home based diagnostics that provide targeted and early risk
identification resulting in improved patient healthcare and reduced costs.
Underpinning research
NHS funding is under more pressure than ever before. A 2012 report by the
King's Fund showed that reducing the number of overnight stays for over
65's by 2.3 million per year, would allow £462m a year to be reinvested in
community and primary care services. However, mechanisms are required that
would allow patient care at home, while providing clinicians access to
appropriate data and patients with personally relevant and reassuring
information about their treatment and condition. Research in Southampton
into micro scale systems for fluid handling (known as microfluidic
systems) began in 2004, when Prof Morgan was appointed. His fundamental
research in microfluidics and techniques for manipulating and analysing
particles (electrokinetics) was translated into technologies for
miniaturised diagnostic systems. The systems integrate multiple analytical
methods, with micro-fluidic technologies and data analysis onto a single
platform, termed the Lab-on-a-Chip.
Morgan's early research (grants 1-3) catalysed the development of new
miniaturised non-invasive single-cell analysis platforms. Underpinning
research included improved understanding of the electrokinetic properties
of particles [3.1, 3.2] and the development of new fabrication
technologies, integrated cell handling and analysis methods with
electronics and signal processing methods [3.3] to enable spectral
analysis of single cells in very short time windows. This involved flowing
up to 1000 cells per second through a specially designed micro-impedance
system.
Capitalising on this work, Southampton worked with Philips (grant 4) to
develop a miniature diagnostic system for analysis of cells from small
drops (50uL) of blood - the Full Blood Count (FBC). This project focused
on the discrimination of the different blood cell types by passing cells
through the detection zone of a pair of micro-electrodes, from which the
information on cell size and dielectric properties was gathered. This
project marked a breakthrough in combining high-speed impedance analysis
of cells with innovative microfluidic sample processing [3.4, 3.5],
complex electronics and high speed signal processing. Close collaboration
with Southampton University Hospital allowed testing on patients. The
project also developed a patient-centred information gathering and
processing platform implemented on a palm-sized computer — the
"Chemoinformer". This symptom-based diagnostic system allows patients
undergoing chemotherapy to upload data on daily basis, which is then
communicated to the district nurse.
In 2005 Morgan explored electrowetting for fluid control (grant 5).
Devices were designed and manufactured to allow trapping and processing of
cells using dielectrophoresis in simple, open geometries for generic
lab-on-a-chip architectures. Researchers also developed a generic method
for combining surface-based electromechanically-mediated microfluidics
with "traditional" dielectrophoresis-based cell manipulation. Electric
field dispensing and mixing systems were used to disperse and characterise
particles such as cells. Researchers showed that it is possible to
initiate and control chemical reactions and biological protocols with such
a system. This overcame a major bottleneck in miniature diagnostics: the
manipulation of nano-litres of liquid under direct electronic control.
Southampton then partnered with Sharp Labs Europe (SLE) to build on this
early work to develop a complex miniature electronic fluid-handling
platform, based on Active Matrix Thin Film Transistor methods,
manufactured by Sharp in Japan [3.6]. Since January 2013, Southampton and
Sharp have collaborated with Public Health England (PHE), part of the
Department of Health, to develop new bioassays for the platform and
develop an analytical system for rapid analysis of viral and bacterial
infections (grant 6).
Other key researchers
Nicolas Green (Reader, appointed UoS in 2006); Donna Davies (Professor,
School of Medicine); Peter Howarth (Reader, Southampton University
Hospital); Judith Holloway (Lecturer, School of Medicine, appointed 2007).
References to the research
(the best 3 outputs illustrating quality of work are starred)
Papers (Industrial Collaborators in Bold):
[3.1] Ramos A, Gonzalez A, Castellanos A, Green N.G. and Morgan H Pumping
of liquids with ac voltages applied to asymmetric pairs of
microelectrodes. Phys Rev E. 67 Article Number: 056302
(2003) 114 citations, IF 2.3
[3.2] Morgan H, Sun T, Holmes D, Gawad, S, Green, NG. Single cell
dielectric spectroscopy J. Phys D: Appl. Phys. 40 61-70
(2007) 88 citations; IF 2.55
[3.3] Sun T., Gawad S., Green N.G. and Morgan H, Single cell impedance
spectroscopy using maximum length sequences: theoretical analysis from
time domain to frequency domain. Meas. Sci. Technol. 18
285902868 (2007), voted best paper in Journal 2007, 24 citations, IF 1.5
*[3.4] Holmes D, Pettigrew D., Reccius C., Gwyer J., van
Berkel C, Holloway J., Davies D.E and Morgan H. Leukocyte
Analysis and Differentiation using High Speed Microfluidic Single Cell
Impedance Spectroscopy. Lab on Chip 9 2881-2889 (2009). 77
citations, IF 6.5
*[3.5] van Berkel C, Dean S., Gwyer J.D., Green N.G.
Holloway J., Hollis V. and Morgan H., Integrated Systems for Rapid
Point of Care (PoC) Blood Cell Analysis. Lab on Chip. 11
1249-1255 (2011). 12 citations, I.F. 6.5
*[3.6] Hadwen B., Broder G.R. Morganti D., Jacobs A.,
Brown C., Hector J.R., Kubotac Y. and H. Morgan Programmable
large area digital microfluidic array with integrated droplet sensing
for bioassays Lab Chip, 2012, 12, 3305-3313. Selected as
"one of the top 10% articles from all papers" by the editor. 7 citations,
IF 6.5. See also http://www.youtube.com/watch?v=WxpQyqoukpc
Key Grants (Morgan PI on all grants):
1. EPSRC "Development of Generic Lab on Chip Systems" GR/M31255/01
£141,976 1999-2002
2. DERA "Flow cytometry on a chip" £156,000 2000-2002
3. EPSRC "Rapid single cell impedance metrology" GR/R28942/01 £179,672
2000-2003
4. EPSRC/TSB Technologies for Health TS/G001405/1 with Philips "Point of
Care Blood Cell Analysis" £1,447,000 2009-2012
5. EPSRC "Electromechanically Driven Surface Microfluidics on a
Micro-Chip" EP/C512618 £62,152 2005
6. NIHR II-ES-0511-21002 with Sharp and PHE "Rapid detection of
infectious agents at point of triage (PoT)". £1,200,440 (2013-2016)
Details of the impact
Southampton's research into microfluidic systems has led to both economic
and health impacts. The research has been responsible for the creation and
expansion of new business activities within two established multinational
corporations, Philips and Sharp Corporation, evidenced by substantial
investment and new product developments. This has led to the creation of
entirely new portable diagnostic and monitoring systems, which are
improving the quality of life of patients and will reduce the cost of
healthcare.
Economic Impacts: Creation of a new business activity within Philips
Southampton's pioneering research led to an industrial collaboration with
Philips in 2006. The encouraging results highlighted the commercial
potential for the microfluidic technologies and lab-on-a-chip to provide
low-cost high volume solutions for consumer diagnostics. In 2009, as a
direct consequence of their collaboration with Southampton, Philips
established a new Biomedical Diagnostics unit at their Cambridge-based
research facilities. The lab-on-a-chip technology is now a core part of
Philips Home Care Solutions long term strategy and Philips' annual
research and development spend in the area around this technology has
grown to approximately £5m [5.1]. This unit now employs 12 full-time
employees (including one Southampton PhD graduate, Dr Catia Bernabini, who
worked for two years in this unit) who collaborate with Southampton in a
range of healthcare focused research and development.
Among the tools developed at Southampton with Philips, of particular note
is the microfluidic technology for full blood counting. Philips have
commercialised the technology and developed a product for the home
monitoring of chemotherapy. This product allows the early diagnosis of
neutropenia (loss of white blood cells) through analysis of a finger-prick
blood sample and sends the results back to the healthcare provider [5.2,
5.3]. The product will be launched commercially in Europe in 2014. A
second portable palm-sized device is also being developed into a Philips
product. The "chemoinformer" allows patients undergoing chemotherapy to
remotely upload data which is then communicated to their nurse on a daily
basis. The chemoinformer is being trialled by 18 patients undergoing
chemotherapy treatment for small cell lung cancer at Southampton General
Hospital. The trial is managed by Dr Christian Ottensmeier [5.4] and is
due to finish at the end of 2013.
The importance of the technology and the collaboration with Southampton
is evidenced by £250,000 direct industrial research funding from Philips
since 2008. In addition, Philips provided £730,355 financial support for
the EPSRC/TSB Technologies for Health project "Point of Care Blood Cell
Analysis" (TS/G001405/1). The collaboration has led to 5 publications with
Philips researchers as co-authors. The IP from a world patent
(WO/2010/140127) [5.5] was transferred to Philips at a cost of £12,000
plus royalties and 2 further patents have been filed.
Economic Impacts: Creation of a new business activity within the Sharp
Corporation
Southampton's ground breaking research in electrowetting for fluid
control has led to a similar impact on the business activities of the
Sharp Corporation. Sharp have collaborated with Southampton to jointly
develop a miniature electronic fluid-handling platform now being
commercialised for use in bioassays and immunoassays for the rapid
analysis of viral and bacterial infections. The collaboration with
Southampton led in 2009 to the creation of Sharp's `Health and Energy'
group at its research labs in Oxford. Following Southampton's successful
demonstration of bioassays (3.6), this group expanded from six full-time
employees (2012) to 10.5 (2013). Since the start of this collaboration,
Sharp's annual research and development spend in this technology has grown
to approximately £1.47m with plans to double this to £3m by the end of
2014 [5.6]. A further proposal has been submitted to the board of Sharp
Corporation for a total investment of €27m over 6 years for product
development and launch. This is a rapidly progressing impact case and the
importance of this new business activity to Sharp and the significance of
the collaboration with Southampton is evidenced by the numerous on-going
joint projects. Morgan was recently awarded a Royal Society Industry
Fellowship to work with Sharp Labs Europe from January 2013 to 2017. The
collaboration has led to one patent filed with Southampton inventors
[5.7].
Health Impacts
The medical technology developed has enhanced the quality of life of
patients. The Philips home monitor improves quality of life for cancer
patients (particularly the terminally ill) by improving the timing of
treatment and providing an early diagnosis of potential complications
without the patient leaving their home. Worldwide 9 million people live
with cancer and half of them will receive chemotherapy; approximately half
of these suffer some degree of neutropenia. Unfortunately, up to 70% of
those infected require hospitalisation, and over 40% suffer delay to their
chemotherapy. These patients are vulnerable to serious infections that can
lead to overwhelming sepsis and death; the morbidity rate from septic
neutropenia is up to 10%. Early detection of neutropenia can therefore
avoid patient readmission, improve outcome and significantly reduce the
cost of healthcare.
Southampton research is also improving the quality of life in developing
countries. The technology has been disseminated to medical professionals
through events such as the Glycomic Centre's 'Kenya Workshop' (June 25-29,
2012), a conference workshop aimed at Sub-Saharan healthcare
practitioners. Morgan oversaw hands-on sessions and visited local health
clinics to demonstrate how to use Southampton-developed low-cost
diagnostics. Feedback from Thomas Kariuki, Director of the Institute of
Primate Research (a Nairobi biomedical facility) testified to the value of
the technology: "Through quality diagnosis, public health effort to reduce
disease impacts on Kenyans' lives can be realised, as illness means paying
for treatment and lost earnings, which impacts on the entire economy."
[5.8]
Impact on Society and Culture
Such is the pioneering nature of the lab-on-a-chip technology that the
Southampton research has regularly received international news and media
attention since 2009. Articles have appeared, among others, in: Science
Daily (US science news website, 3m monthly visitors, 29/8/09), Nursing
Times and 'nursing times.net' (magazine circulation: 12,601; 616,500
unique website users, 25/09/09), CQ News (the Chinese news website,
10 million hits daily, 09/04/10) and The Huffington Post
(25/06/2012) [5.8].
Summary
This impact case study describes significant industrial investment in new
business activities that would not have occurred without the underpinning
research in microfluidics carried out at Southampton. These activities are
leading to new products for medical diagnostics, providing patient
benefits and cost savings.
Sources to corroborate the impact
[5.1] Contact for Philips: Principal Scientist, Home Healthcare, Philips
Research Cambridge. See www.philips.co.uk/about/company/philipsintheunitedkingdom/healthcare/index.page
[5.2] Podcast on our miniature blood counting system by American Chemical
Society - "ACS Podcast", Episode 238 — February 20, 2012,
http://web.1.c2.audiovideoweb.com/1c2web3536/ScienceElements_Feb20_2012.mp3
and ACS News Service Weekly PressPac: February 1, 2012 "Handheld device
for doing blood tests moves closer to medical use"
[5.3] Viewpoint: Lab Chip, 2009,9, 2875-2876: " Cutting edge: Electronic
counting of white blood cells" by Daniel Irimia (http://pubs.rsc.org/en/content/articlelanding/2009/LC/b917138j)
[5.4] Contact for chemoinformer clinical trial: Chair Experimental Cancer
Medicine, Southampton General Hospital.
[5.5] Patent: Morgan H. Multi-Frequency Impedance Method and apparatus
for discriminating and counting particles expressing a specific marker.
WO/2010/140127
[5.6] Contact for Sharp: Research Manager, Sharp Laboratories of Europe
Limited,. See www.sle.sharp.co.uk/research/het/
[5.7] Sharp patent filed with Southampton inventors: US filing number:
13/742,564
[5.8] http://www.glycomicscentre.ca/workshops/overview/
http://www.glycomicscentre.ca/wp-content/uploads/2012/07/Diagnostics-opinion-write-up-in-past-tense.pdf
[5.9] http://www.sciencedaily.com/releases/2009/08/090825103225.htm
http://www.nursingtimes.net/whats-new-in-nursing/primary-care/new-device-for-on-the-spot-blood-analysis-in-gp-surgeries/5005576.article
http://english.cqnews.net/stories/201004/t20100409_4250876.htm
http://www.huffingtonpost.co.uk/trevor-davies/mobile-blood-test-unit-wi_b_1625487.html