Biosensor technologies for improved environmental monitoring
Submitting Institution
University of BedfordshireUnit of Assessment
Earth Systems and Environmental SciencesSummary Impact Type
EnvironmentalResearch Subject Area(s)
Mathematical Sciences: Statistics
Chemical Sciences: Analytical Chemistry
Engineering: Electrical and Electronic Engineering
Summary of the impact
Reliable and timely measurements are vital for innovation, trade,
environmental protection and quality of life. University of Bedfordshire
work with measurement systems was already established in 1993 with
commercially sponsored work to develop and patent sensors for rapid
toxicity assessment in the water industry. Biosensor technologies provide
approaches to development and application of cost effective devices for
measurement at the point of need in many fields of application and the
university's Sensor Research Group has continued to work with industry to
develop robust (bio)sensor systems to address business and society needs —
particularly with respect to environmental protection, health and
wellbeing.
Underpinning research
Research context
(Bio)Chemical measurement is a significant aspect of global economy and
disposable sensor manufacture is a significant contributor to knowledge
based bioeconomy. Professor Tony Turner (`Mr Biosensor') estimated the
global biosensor market in 2010 to be US$13billion growing to US$17billion
by 2018 (Turner, A.P.F. Chem. Soc. Rev. 42, 3184-3196,
2013). Disposable sensor systems are attractive both to manufacturers and
to users. Environmental biosensors were predicted to take about 14% of the
market — compared to 20% for home testing and 45% for point of care
testing (Thusu, R. www.sensorsmag.com/specialty-markets/medical/strong-growth-predicted-biosensors-market-7640).
Demonstrating sensors in-principle is easy (the academic literature is
awash with reports). However, developing commercially viable sensor
systems is tough. Experience showed that maximum benefit was obtained by
both industrial sponsor(s) and by the research group by embedding
post-doctoral staff in the sponsor(s)' research and development teams.
This facilitated communication between the parties and ensured that the
academic input was optimally focused. In cases where the research was
carried out `at arm's length', the feedback times between parties were
(much) longer and it was less easy to ensure that the academic effort was
optimally aligned with the customer needs.
What research was undertaken, when and by whom
The concept of using immobilised biological whole cells for environmental
monitoring was developed with sponsorship (1993-2004) from (amongst
others) Astra Zeneca, ICI, Severn Trent Water and Shell and support from
the Environment Agency (ongoing) due to their interest in toxicity
assessment (ref 3.4, 3.5). This research and development programme arose
from early work of David Rawson sponsored by the Water Research Centre and
the recruitment of Barry Haggett with physicochemical expertise. The
technology was licensed (1997) to Primera and commercialised as
CellSense™. This work highlighted the challenges in cryopreserving
immobilised biological whole cells and resulted in the formation of a
world-class Cryobiology Research Group led by Professor Rawson and
Professor Zhang at the University of Bedfordshire in parallel with a
Sensor Research Group with expertise in the development of disposable
sensor systems headed by Dr Barry Haggett with Professor Brian Birch as
new business manager. Funding was obtained to develop sensor systems and
components from DEFRA (2004 - 2006, ref 3.6), EU Framework (1999 - 2002),
Johnson & Johnson (2006 - 2011), Kodak (1995 - 2002), Oxley (1998 -
2001), Oxoid, Unilever (2000 - 2008), Unipath (1995 - 2006), Yorkshire
Water (1995 - 2000) and others. The emphasis in this work was to generate
intellectual property that could be commercially exploited.
Names of the key researchers and the positions they held at the
institution at the time of the research
David Rawson, Professor of Applied Cell Biology (1989 - 2010; continuing
as Emeritus Professor)
Brian Birch, Visiting Professor/Professor of Analytical Sciences (1995 -
2010)
Barry Haggett, Senior/Principal Research Fellow (1989 - 2011; currently
Senior Lecturer)
References to the research
3.1. Redha, Z. M., Baldock, S. J., Fielden, P. R., Goddard, N. J., Treves
Brown, B. J., Haggett, B. G. D., Andres, R. and Birch, B. J. (2009).
Hybrid microfluidic sensors fabricated by screen printing and injection
moulding for electrochemical and electrochemiluminescence detection. Electroanalysis
21, 422-430. dx.doi.org/10.1002/elan.200804415 (2013 impact factor
2.817; ISI Journal Citation Reports 9/26 (electrochemistry), 22/75
(chemistry analytical).)
3.2. Jezek, J., Dilleen, J. W., Haggett, B. G. D., Fogg, A. G. and Birch,
B. J. (2007). Hexacyanoferrate(III) as a mediator in the determination of
total iron in potable waters as iron(II)-1,10-phenanthroline at a
single-use screen-printed carbon sensor device. Talanta 71,
202-207. dx.doi.org/10.1016/j.talanta.2006.03.051 (Impact factor
3.498; 5 year impact factor 3.733) ***
3.3. Kang, J., Hussain, A. T., Catt, M., Trenell, M., Haggett, B. and Yu,
E. H. (2014) Electrochemical detection of non-esterified fatty acid by
layer-by-layer assembled enzyme electrodes. Sensors and Actuators B:
Chemical 190, 535-541. dx.doi.org/10.1016/j.snb.2013.09.011
(Impact factor 3.535; 5 year impact factor 3.668)
3.4. Daniel, M., Sharpe, A., Driver, J., Knight, A. W., Keenan, P. O.,
Walmsley, R. M., Robinson, A., Zhang, T. and Rawson, D. (2004). Results of
a technology demonstration project to compare rapid aquatic toxicity
screening tests in the analysis of industrial effluents. Journal of
Environmental Monitoring 11, 855-865. dx.doi.org/10.1039/B408939A
(Impact factor 2.085) ***
3.5. Polak, M. E., Rawson, D. M. and Haggett, B. G. D. (1996). Redox
mediated biosensors incorporating cultured fish cells for toxicity
assessment. Biosensors and Bioelectronics 11, 1253-1257. dx.doi.org/10.1016/0956-5663(96)88090-0
(Impact factor 5.437; 5 year impact factor 5.389) ***
3.6. Kadara, R. O., Haggett, B. G. D. and Birch, B. J. (2006). Disposable
sensor for measurement of vitamin B2 in nutritional premix, cereal and
milk powder. Journal of Agricultural and Food Chemistry 54,
4921-4924. dx.doi.org/10.1021/jf0603376 (2012 Impact factor
2.906).
*** Indicates those references that best indicate the quality of the
underpinning research.
Details of the impact
How the research underpinned the impact
The Sensor Research Group was equipped with manufacturing and test
equipment — mostly supplied by commercial sponsors over an extended period
of years. Members of staff were able to undertake industrially sponsored
contract research on a full-time basis without teaching commitments or the
requirement to publish in the academic literature. This context, together
with experience of manufacturability, commercial and end-user issues
related to developing `real' sensor systems was attractive to sponsors
looking to undertake development work outside the scope or capacity of
their in-house staff and too commercially sensitive to be undertaken
within a `conventional' academic environment.
The nature of the impact
Three types of impact are claimed for the work undertaken by the
University of Bedfordshire:
(1) Sensor systems produced by the group enabled sponsors to generate
data (that was otherwise inaccessible or prohibitively expensive)
enabling, supporting or facilitating manufacturing processes that, in
turn, better satisfied their customer needs.
(2) Generation of intellectual property to enable sponsors to maintain
and/or improve their products and/or services.
(3) A general impact on the wider community through the uptake of the
redox-mediated whole cell biosensor approach to rapid toxicity assessment
invented by Prof. Rawson (Pollutant detector. GB Patent 2189605A).
Process or means through which the research led to the impact
University of Bedfordshire staff were able to work for, with and in
industry to: design and manufacture prototype sensor systems; work with
sponsors to test prototypes under `real' conditions; and, where necessary,
work with third parties to transfer technology and facilitate scale-up
from laboratory (thousands) to manufacturing (tens of thousands) prototype
production.
Details of the beneficiaries
Work carried out by the University of Bedfordshire on behalf of Johnson
& Johnson led to the generation of intellectual property. Although it
is difficult to quantify the economic value, it has enabled the company to
protect and enhance its significant share of the billion dollar market for
blood glucose measurement systems. This is a market in which the company
is determined to remain a leading player which is why it continues to push
for the widest possible protection of the intellectual property generated
on its behalf by the University (Dr Saini, 5.1).
The association between Unilever Corporate Research and the sensor
research group at the University of Bedfordshire extended over many years
covering (amongst others) the technology programme at Unipath Diagnostics
and the Healthy Ageing programme (2005-2009) managed by Michael Catt
(5.2). A fundamental objective of the research programme was to examine
the feasibility of analysing biological fluids for vitamin C levels as a
surrogate indicator for fruit and vegetable intake. This work was
initiated in light of the associations found in the EPIC study (Int J
Epidemiology 37 2008 978-987). Vitamin C is routinely added
to foodstuffs and beverages and the sensors developed were deployed for
material quality assessment within the business, both in the UK and
elsewhere in the EU. Exploratory product concepts were well received in
qualitative professional and consumer research. The programme included
exploration of other relevant biomarkers that informed the Healthy Ageing
programme and, although the sensors have yet to be commercialised, there
is still considerable potential for rapid assessment of markers of dietary
intake and Professor Catt continues to collaborate with the University of
Bedfordshire (e.g. ref 3.3).
Indicators of the extent of the impact
The extent of the impact of the University of Bedfordshire work on
Johnson & Johnson's business is reflected by the international scope
of the patent applications (China, US and IPO agencies; section 5). The
position is similar with respect to the work for Unipath/Unilever (US and
IPO patents). Although the CellSensef6db instrumentation is no longer
available in the UK, it is manufactured and distributed in China
("ToxTell"; Biosensors and Bioelectronics 41 2013 557-562) and the
patented redox-mediated biosensor approach to rapid toxicity assessment
continues to be exploited in the UK (e.g. Rothamsted Research, 5.3; and
Environment Agency, 5.4) and across the world.
Dates of when these impacts occurred
2008 to present.
Sources to corroborate the impact
Much of the work carried out by the Sensor Research Group was funded by
industrial research contracts rather than research grants and the
University is not at liberty to use business information other than for
the purpose of the contracts. Patent applications submitted by sponsors
encapsulate those parts of the work considered (by the sponsors) to be
significant to the company and worth protecting. People representing the
following the organisations are willing to corroborate the impact of the
Sensor Research Group's work in their areas:
5.1 Johnson & Johnson (Concepts and New Product Technologies) for
research impact in biomarkers for health and wellbeing with respect to Chinese
Patent Application CN 101680875(A), US Patent Application
2009/0325307, US Patent Application 2009/0325307, US
Patent Application 2009/0302872 and International Patent
Application WO 2009/034284.
5.2 Alere International: Derwent House, University Way, Cranfield
Technology Park, Cranfield, MK43 0AZ for research impact in biomarkers for
health and wellbeing with respect to World Intellectual Property
Organisation Patent Applications WO 2009/021908 and WO
2009/021907, and US Patent 7198708 for the work with
Unilever Corporate Research and Unipath Diagnostics
5.3 Rothamsted Research with respect to sensors for rapid toxicity
assessment in environmental applications and protection particularly for
use with soils.
5.4 Environment Agency with respect to sensors for rapid toxicity
assessment and more generally for environmental monitoring and protection.