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Staff Profile

Professor John Allen

Visiting Professor at Â鶹´«Ã½. Specialist in Vascular Optics and Microvascular Sensing. Faculty of Medical Sciences.

Background

Visiting Professor at Â鶹´«Ã½ - Translational and Clinical Research Institute, Faculty of Medical Sciences 

Microvascular sensing specialist.


Track Record and Roles

* Visiting Professor at Â鶹´«Ã½ Medical School and collaborate with academic / honorary staff on a number of research projects as well as undertake PGR project supervisions to doctoral level. Honorary Fellow: Faculty of Medical Sciences Graduate School.

* Responsible for securing and managing grant funded research projects - vascular optics focus, collaborations to date totals ~£3.3M. Chief Investigator for one project (NIHR funded £1.3M), overseeing the development of a new vascular optics i.e. PPG pulse diagnostics device for PAD detection in primary care for GPs - leading a multi-disciplinary team from 4 partner organisations (aka the NOTEPAD project). Applying for further significant grant funding related to a number of projects on vascular optics, accessible diagnostics, immersive technology, and novel wearable sensing for cardiovascular assessment.

* In 2023 - successful completion as DoS / PI for Â鶹´«Ã½ NIHR BRC funded PhD student Sadaf Iqbal - AI and PPG for the diagnosis of systemic sclerosis (SSc) (~£87k).

* Founder / former lead (2001-2020) of the Microvascular Measurement Service & Research facility based at the Freeman Hospital in the Northern Medical Physics and Clinical Engineering (NMPCE) department - primarily for Raynaud's patient / microvascular assessments.

* Founder Microvascular Sensing lab and research group at the HDTI centre on Coventry University Technology Park, to 2026 as Professor of Biosensors and Bioinstrumentation with focus as microvascular sensing / vascular optics, collaborations formed with UHCW NHS Trust and Warwick consultants in Rheumatology, Care of the Elderly, Cardiology and Vascular Surgery. See Inaugural Lecture through link below.

Qualifications and Professional Societies

PhD Medical Physics, Â鶹´«Ã½, 2002.

MSc Bioengineering, Strathclyde University, 1989.

BEng (2:1) Control Engineering, Sheffield University, 1985.

UK Parliamentary and Scientific Committee (Individual Member, 2021-2026).

Member of Executive Editorial Board, Physiological Measurement, Institute of Physics Publishing.

Health and Care Professions Council (HCPC), registered Clinical Scientist (registration number: CS00033).

Chartered Scientist (CSci), Science Council.

Chartered Engineer (CEng), Engineering Council.

Institute of Physics and Engineering in Medicine (IPEM).

Member, IEEE. Biomedical Engineering Society.

Royal Photographic Society (Fellow and Accredited Senior Imaging Scientist, ASIS).

British Microcirculation and Vascular Biology Society (BMVBS).

Member - NASA Open Science Data Repository Analysis Working Groups.

Honours and Awards

2020-2024 (e.g. ) in specific categories (Biomedical Engineering // Cardiovascular System and Hematology).

Winner of Kurt Ammer Prize for Best Poster Presentation. XV Congress of the Association of Thermology (September 2021). "Explorations in skin temperature and objective skin colour measurements in Raynaud's phenomenon: a pilot study."

Recognition from IPEM and IoP (Physiological Measurement) for obtaining greater than a 1000 citations for a research article that I had written (largest by far for the leading international medical physics journal), July 2019. Citations ~3300 (Q4 2025).

Fully funded / invited academic visit to present work and meet with clinical engineering colleagues and discuss collaborative opportunities. China (Beijing and Shenzhen), May 2017.

IET Innovations Awards 2017. Finalist in 2 categories for the new PAD assessment vascular optics device: Healthcare Technology and Emerging Technology Design. Both Highly Commended - International awards ceremony, London November 2017. Lead for project.

Fellow of the Royal Photographic Society - Accredited Senior Imaging Scientist (ASIS FRPS), from 2014.

The honour to be invited to join the PM at a Reception in Lancaster House in London (2007) - in recognition of those "Delivering excellence in Public Services".

Submitted, on behalf of Cardiovascular Physics and Engineering Research Group, the winning entries for the 2006 NHS Health and Social Care Award for Innovative Technology and the 2007 IPEM Manufacturers' Award.

Awarded Institute of Physics and Engineering in Medicine (IPEM) Travel Bursary to visit Porto European Thermology conference, September 2012. Also, awarded a bursary to visit hospitals and universities in Cuba, November 2006 (Visiting Professorship: Biofisica Medica, Santiago de Cuba, Cuba 2006/2007).


Research

Translational and Clinical Research Institute (TCRI). Vascular Biology and Medicine theme. Also, member of Biomedical Engineering NUCoRE.


My Esteem Indicators

Guest Editor. Advances in Basic and Applied Research in Photoplethysmography. Frontiers in Physiology special issue, 2022/23.

Honoured to be in the 2020-2024 e.g. .

Invited podcast for Physics World (IOP Publishing) given - talking about career in photoplethysmography (PPG) R&D (released 13/1/22).

Visiting Professor at Â鶹´«Ã½ (2021+).

Have published 100+ peer reviewed articles and made more than 100 formal scientific presentations to medical and scientific colleagues, and to industrial partners.

Co-editor (Kyriacou and Allen, 2021) of a first ever comprehensive book on photoplethysmography. "Photoplethysmography: Technology, Signal Analysis and Applications." Elsevier. Published Nov 2021 (), book said by Elsevier Senior Acquisitions Editor, Electronic Engineering, Computer Vision and Medical Imaging to be their most successful title of the titles published in 2021 and 2020.

Co-organised, chaired and presented a mini-symposium on photoplethysmography at the IEEE EMBC'19 Biomedical Engineering meeting in Berlin this summer - presenting work on a PPG based vascular assessment device development and related technologies.

Executive Editorial Board, Physiological Measurement. Institute of Physics Publishing.

Editorial Board, Sensors. Frontiers in Physiology. Frontiers in Signal Processing.

Editorial Board, Imaging Science Journal.

Editorial Board, Scientific Reports.

External PhD Examiner: Eindhoven University, City St Georges - The University of London, Dundee University, Loughborough University, Nottingham University, Kings College London, and University of South Wales.

Photoplethysmography = keeping one's finger on that pulse. See the score in context of wider impact on  (~3400 citations by end of 2025).

Main Collaborative Funding and Projects

Allen J, Steering Group Advisor. 2024-2026. Capillaroscopy and AI device. NIHR i4i PDA funded project (led by Manchester University), taking developments towards the clinical setting nationally.

Allen J. Collaborator (unfunded position). 2023-2026. QUMPHY project (PTB-led consortium) on PPG and AI metrology. ~1.5M Euros.

**Allen J, DoS and PI for 1 British Council MRes studentship (Women into Science). 2024-25. Raynaud's and Scleroderma R&D.

**Allen J, DoS and PI for 3 fully funded PhD studentship projects between Research Centre for Intelligent Healthcare (Coventry) and A* Singapore / ETH Zurich. 2023 to 2026. PPG R&D. The ETH Zurich projects were set up firstly between Dr Moe Elgendi and myself, funding deal secured and Prof Carlo Menon very kindly supporting from the ETHZ side.

Allen J, Clinical Advisor. 2020-2023. NIHR i4i PDA project (Manchester University led) on Capillaroscopy and AI device. On steering group for 2023-2026 NIHR PDA funded project led by MU, taking development towards the clinical setting nationally.

Allen J, DoS and PI for Â鶹´«Ã½ BRC funded PhD studentship on PPG-AI SSc detection. 2018-2023. ~£87k.

Allen J, Chief Investigator (CI). 2014-18. NIHR i4i Cardiovascular Challenge Award. II-C1-0412-20003. Innovative photoplethysmography technology for rapid non-invasive assessment of peripheral arterial disease in primary care. Device development project, Â鶹´«Ã½ Hospitals and partners. Grant total ~£1.3M. "NOTEPAD".

 Allen J, Co-Investigator (Co-I). 2014-17. NIHR i4i Product Development Award (PDA). II-LA-0813-20007. An innovative system for the early identification, monitoring, evaluation and diagnosis of diabetic foot ulcers. Device development project led by National Physical Laboratory (NPL), CI Professor Graham Machin. Grant total ~£1.2M. "DFUPS / DFIRST".

 Allen J, Co-Investigator (Co-I). 2014-16. Arthritis Research UK Award. Validation of laser Doppler imaging and thermography in patients with Raynaud’s phenomenon secondary to systemic sclerosis. Multi-centre clinical evaluation led by Manchester University, Dr Andrea Murray. Grant total ~£200k. "VALIDS".

 Allen J, Collaborator to supply specialist venous and cardiovascular physiology measurements and analysis. 2018-2020. Venous physiology and optical muscle perfusion: BRC funded: TArgeting the SKeletal Muscle pump to Aid Standing in Elders with postuRal hypotension. PI Dr James Frith, Â鶹´«Ã½. "TASKMASTER".

**From 2023 - initiated 4 Coventry University PhD supervisions / projects - all PPG centred projects stemming from my lab / former Â鶹´«Ã½ Medical Physics Microvascular R&D: High sensitivity PPG chest pulse mapping using lock-in amplifier; Multi-modal vascular optics assessment of Raynaud's based on objective colour and vascular measures; Novel PPG PAD and CV modelling. Following reorganisation at Coventry University from 2025/6 new DoS in place to take 3 of the projects forward in other ways. See great works as early as 2025 with novel data sets being collected and novel PPG based sensor systems being developed:

Teaching

Postgraduate Teaching and Project Supervision: MRes and to doctoral level (MD and PhD).


Invited lecture, various - e.g. Biomedical Engineering at NU: guest lecture to Masters students on microvascular sensing (Feb '26); also guest lecturer on Uni of Glos Vascular Science course (March '26).


Formerly: Vascular Science: CVR8023 - Year 3, Microcirculation specialism; various on Medical Physics training course.


Warwick University SSC2 project supervisions, since 2025.

Publications

  • Articles

    • Frith J, Robinson L, Gibbon JR, Allen J. . Clinical Physiology and Functional Imaging 2024, 44(3), 205-210.
    • Elgendi M, Haugg F, Fletcher RR, Allen J, Shin H, Alian A, Menon C. . Communications Medicine 2024, 4, 140.
    • Jerve FW, Hjelme DR, Kalvøy H, Allen J, Tronstad C. . Sensors 2024, 24(20), 6505.
    • Allen J, Kyriacou PA. . Frontiers in Physiology 2024, 15, 1415049.
    • Zanelli S, Agnoletti D, Alastruey J, Allen J, Bianchini E, Bikia V, Boutouyrie P, Bruno RM, Climie R, Djeldjli D, Gkaliagkousi E, Giudici A, Gopcevic K, Grillo A, Guala A, Hametner B, Joseph J, Karimpour P, Kodithuwakku P, Kyriacou PA, Lazaridis A, Lonnebakken MT, Martina MR, Mayer CM, Nabeel PM, Navickas P, Nemcsik J, Orter S, Park C, Pereira T, Pucci G, Rey ABA, Salvi P, Seabra ACG, Seeland U, van Sloten T, Spronck B, Stansby G, Steens I, Stieglitz T, Tan I, Veerasingam D, Wassertheurer S, Weber T, Westerhof BE, Charlton PH. . Physiological Measurement 2024, 45, 121001.
    • Bul K, Holliday N, Bhuivan MRA, Clark CT, Allen J, Wark PA. . JMIR Human Factors 2023, 10, e43959.
    • Charlton PH, Allen J, Bailon R, Baker S, Behar JA, Chen F, Clifford GD, Clifton DA, Davies HJ, Ding C, Ding X, Dunn J, Elgendi M, Ferdoushi M, Franklin D, Gil E, Hassan MF, Hernesniemi J, Hu X, Ji N, Khan Y, Kontaxis S, Korhonen I, Kyriacou PA, Laguna P, Lazaro J, Lee C, Levy J, Li Y, Liu C, Liu J, Lu L, Mandic DP, Marozas V, MejiaMejia E, Mukkamala R, Nitzan M, Pereira T, Poon CCY, RamellaRoman JC, Saarinen H, Shandhi MMH, Shin H, Stansby G, Tamura T, Vehkaoja A, Wang WK, Zhang YT, Zhao N, Zheng D, Zhu T. . Physiological Measurement 2023, 44(11), 111001.
    • Stansby G, Sims AJ, Wilson L, Beale TAW, Wightman J, Guri I, Wilkes S, Haining S, Allen J. . Angiology 2023, 74(9), 859-867.
    • Iqbal S, Agarwal S, Purcell I, Murray A, Bacardit J, Allen J. . Biomedical Signal Processing and Control 2023, 86, 104993.
    • Iqbal S, Bacardit J, Griffiths B, Allen J. . Frontiers in Physiology: Computational Physiology and Medicine Special Issue on PPG 2023, 14, 1242807.
    • Iqbal S, Bacardit J, Griffiths B, Allen J. . Frontiers in Physiology 2023, 14, 1242807.
    • Huthart S, Oates CP, Allen J, Fiaschi K, Andrew AJ, Stansby G. . European Journal of Vascular and Endovascular Surgery 2022, 64(2-3), 210-216.
    • Sinaki F, Ward R, Abbott D, Allen J, Fletcher R, Menon C, Elgendi M. . Communications Medicine 2022, 2, 59.
    • Allen J. . Science in Parliament 2021, 77(1), 14-16.
    • Boylan LM, Nesbitt C, Wilson L, Allen J, Sims A, Guri I, Mawson P, Oates CP, Stansby G. . Angiology 2021, 72(5), 474-479.
    • Liu H, Allen J, Khalid SG, Chen F, Zheng D. . Physiological Measurement 2021, 42(7), 074001.
    • Allen J, Haipeng L, Iqbal S, Zheng D, Stansby G. . Physiological Measurement 2021, 42(5), 054002.
    • Stansby G, Sims A, Wilson L, Beale T, Wilkes S, Vale L, Oates C, Allen J. Prospective assessment of the diagnostic performance of multi-site photoplethysmography pulse technology for PAD detection in primary care. TBC 2020. In Preparation.
    • Tang Q, Chen Z, Allen J, Alian A, Menin Carlo, Ward Rabab, Elgendi M. . Frontiers in Medicine 2020, 7, 597774.
    • Kyle D, Stansby G, Libby G, Macdonald A, Allen J. Optimising multi-site photoplethysmography (MPPG) device protocol for rapid lower limb vascular assessment in a primary care setting. TBC 2020. In Preparation.
    • Welykholowa K, Hosanee M, Chan G, Cooper R, Kyriacou PA, Zheng D, Allen J, Abbott D, Menon C, Lovell NH, Howard N, Chan WS, Lim K, Fletcher R, Ward R, M Elgendi. . Journal of Clinical Medicine 2020, 9(4), 1203.
    • Hosanee M, Chan G, Welykholowa K, Cooper R, Kyriacou PA, Zheng D, Allen J, Abbott D, Menon C, Lovell N, Howard N, Chan W-S, Lim K, Fletcher R, Ward R, Elgendi M. . Journal of Clinical Medicine 2020, 9(3), 723.
    • Bird K, Chan G, Lu H, Greef H, Allen J, Abbott D, Menon C, Lovell NH, Howard N, Chan W-S, Fletcher RR, Alian A, Ward R, Elgendi M. . Frontiers in Medicine 2020, 7, 583331.
    • Allen J, O'Sullivan J, Stansby G, Murray A. . Physiological Measurement 2020, 41(7), 074001.
    • Huthart S, Elgendi M, Zheng D, Stansby G, Allen J. . Frontiers in Digital Health 2020, 2, 619692.
    • Kyle D, Boylan L, Wilson L, Haining S, Oates C, Sims A, Guri I, Allen J, Wilkes S, Stansby G. . Journal of Primary Care and Community Health 2020, 11, 1-6.
    • Oluboyede Y, Ternent L, Vale L, Allen J. . PharmacoEconomics - Open 2019, 3, 571–581.
    • Agarwal R, Chaudhry B, Jansen K, O'Sullivan J, Hudson J, Allen J, Coats L. . Physiological Measurement 2019, 40(6), 06NT01.
    • Moloney E, O'Connor J, Craig D, Robalino S, Chrysos A, Javanbakht M, Sims A, Stansby G, Wilkes S, McGonnell G, Allen J. . PharmacoEconomics - Open 2019, 3(1), 21-30.
    • Allen J, Hedley S. . Physiological Measurement 2019, 40(8), 08NT01.
    • Allen J. . Frontiers in Physiology 2019, 10, 1190.
    • Lecouturier J, Scott J, Rousseau N, Stansby G, Sims A, Allen J. . British Journal of General Practice Open 2019.
    • Scott J, Rousseau N, Lecouterier J, Stansby G, Sims A, Wilson L, Allen J. . PLoS ONE 2019, 14(11), e0224546.
    • Maniatopoulos G, Haining S, Allen J, Wilkes S. . BMC Health Services Research 2019, 19, 648.
    • Chan G, Cooper R, Hosanee M, Welykholowa K, Kyriacou P, Zheng D, Allen J, Abbott D, Lovell N, Elgendi M. . Journal of Clinical Medicine 2019, 8(11), 1827.
    • Petrova NL, Donaldson NK, Tang W, MacDonald A, Allen J, Lomas C, Leech N, Ainarkar S, Bevans J, Plassmann P, Kluwe B, Ring F, Whittam A, Rogers L, McMillan J, Simpson R, Donaldson ANA, Machin G, Edmonds ME. . Diabetic Medicine 2019, 37(1), 95-104.
    • Macdonald A, Petrova N, Ainarkar S, Allen J, Lomas C, Tang W, Plassmann P, Whittam A, Bevans J, Ring F, Kluwe B, Simpson R, Rogers L, Machin G, Edmonds M. . Physiological Measurement 2019, 40(8), 084004.
    • Petrova NL, Whittam A, MacDonald A, Ainarkar S, Donaldson AN, Bevans J, Allen J, Plassmann P, Kluwe B, Ring F, Rogers L, Simpson R, Machin G, Edmonds ME. . Journal of Foot and Ankle Research 2018, 11, 22.
    • Waugh W, Allen J, Wightman J, Sims AJ, Beale TAW. . Computational and Mathematical Methods in Medicine 2018, 6812404.
    • Allen J, Di Maria C, Urwin SG, Murray A, Ottewell L, Griffiths B. . Physiological Measurement 2018, 39(3), 03NT02.
    • Dinsdale G, Roberts C, Moore T, Manning J, Berks M, Allen J, Anderson ME, Cutolo M, Hesselstrand R, Howell K, Pizzorni C, Sulli A, Wildt M, Taylor C, Murray A, Herrick AL. . Rheumatology 2018, 58(2), 284-288.
    • Sharkey EJ, Di Maria C, Klinge A, Murray A, Zheng D, O'Sullivan J, Allen J. . Physiological Measurement 2018, 39, 074007.
    • Bentham M, Stansby G, Allen J. . Diseases: Special Issue on Non-invasive Diagnostics for Cardiovascular Disease 2018, 6(3), 81.
    • Wilkinson JD, Leggett SA, Marjanovic EJ, Moore TL, Allen J, Anderson ME, Britton J, Buch MH, Del-Galdo F, Denton CP, Dinsdale G, Griffiths B, Hall F, Howell K, MacDonald A, McHugh NJ, Manning JB, Pauling JD, Roberts C, Shipley JA, Herrick AL, Murray AK. . Arthritis and Rheumatology 2018, 70(6), 903-911.
    • Segers P, O'Rourke MF, Parker K, Westerhof N, Hughes A, Aguado-Sierra J, Aizawa K, Alastruey J, Allen J, Avolio A, Chen C-H, Cheng H-M, Faita F, Fraser A, Gavish B, Greenwald S, Hametner B, Holewijn S, Di Lascio N, Izzo JL, Khir AW, Negoita M, Obeid H, Mynard J, Reesink KD, Rivolo S, Schultz MG, Sharman J, Spronck B, Su J, Thom S, Vennin S, Verdonck P, Westerhof BE. . Artery Research 2017, 18, 75-80.
    • Macdonald A, Petrova N, Ainarkar S, Allen J, Plassmann P, Whittam A, Bevans J, Ring F, Kluwe B, Simpson R, Rogers L, Machin G, Edmonds M. . Physiological Measurement 2017, 38(1), 33-44.
    • Urwin SG, Griffiths B, Allen J. . Physiological Measurement 2017, 38(2), N32-N41.
    • Dinsdale G, Moore T, O'Leary N, Tresadern P, Berks M, Roberts C, Manning J, Allen J, Anderson M, Cutolo M, Hesselstrand R, Howell K, Pizzorni C, Smith V, Sulli A, Wildt M, Taylor C, Murray A, Herrick AL. . Microvascular Research 2017, 112, 1-6.
    • Barakat T, Singh A, Stansby G, Allen J. . World Journal of Research and Review 2017, 5(5), 24-27.
    • Machin G, Whittam A, Ainarkar S, Allen J, Bevans J, Edmonds M, Kluwe B, Macdonald A, Petrova N, Plassmann P, Ring F, Rogers L, Simpson R. . Physiological Measurement 2017, 38(3), 420-430.
    • Mizeva I, Di Maria C, Frick P, Podtaev S, Allen J. . Journal of Biomedical Optics 2015, 20(3).
    • Wilkes S, Stansby G, Sims A, Haining S, Allen J. . British Journal of General Practice 2015, 65, 323-324.
    • Benson E, Allen J. . Science in Parliament 2015, 72(2), 40-41.
    • Allen J, Young AL, Griffiths B. . Pan American Journal of Medical Thermology 2014, 1(1), 51-54.
    • Green R, Endersby S, Allen J, Adams J. . British Journal of Oral & Maxillofacial Surgery 2014, 52(1), 90-92.
    • Di Maria C, Allen J, Dickinson J, Neoh C, Perros P. . Journal of Clinical Endocrinology & Metabolism 2014, 99(12), 4600-4606.
    • McKay N, Griffiths B, Di Maria C, Hedley S, Murray A, Allen J. . Rheumatology 2014, 53(10), 1855-1863.
    • Abel G, Allen J, Drinnan M. . Physiological Measurement 2014, 35(9), 1769-1780.
    • Anderson K, Di Maria C, Allen J. . Journal of Sleep Research 2013, 22(3), 315-321.
    • Allen J, Di Maria C, Mizeva I, Podtaev S. . Physiological Measurement 2013, 34(7), 769-779.
    • Richards RE, Allen J, Burnett S, Howell KJ, Smith RE. . Thermology International 2013, 23(1), 17-23.
    • Oates CP, Allen J, Stansby G. . Angiology 2013, 64(7), 492-493.
    • Agarwal SC, Allen J, Murray A, Purcell IF. . Microvascular Research 2012, 84(1), 55-59.
    • Allen J, Murray A, Di Maria C, Newton JL. . Physiological Measurement 2012, 33(2), 231-241.
    • Simon AP, Fernando-Britto Rodriguez CMJE, Allen J. . Revista Cubana de Investigaciones Biomedicas 2011, 30(4), 487-500.
    • Agarwal SC, Allen J, Murray A, Purcell IF. . Physiological Measurement 2010, 31(1), 1-11.
    • Stevens S, Allen J, Murray A, Jones D, Newton J. . Liver International 2009, 29(10), 1467-1472.
    • Klinge A, Allen J, Murray A, O-Sullivan J. . Journal of Heart and Lung Transplantation 2009, 28(1), 21-25.
    • Zheng D, Allen J, Murray A. . Physiological Measurement 2008, 29(12), 1411-1419.
    • Allen J, Overbeck K, Nath AF, Murray A, Stansby G. . Journal of Vascular Surgery 2008, 47(4), 794-802.
    • Allen J. . Physiological Measurement 2007, 28(3), R1-R39.
    • Zheng D, Allen J, Murray A. . Physiological Measurement 2007, 28(10), 1317-1327.
    • Allen J, Oates CP, Chishti AD, Ahmed HAM, Talbot D, Murray A. . Physiological Measurement 2006, 27(1), 51-60.
    • Newton JL, Allen J, Kerr S, Jones DEJ. . Liver International 2006, 26(2), 197-202.
    • Allen JM, Overbeck K, Stansby GP, Murray A. . Measurement and Control 2006, 39(3), 80-83.
    • Zheng D, Allen J, Murray A. Beat-to-beat changes in arterial compliance. Proceedings of World Congress on Medical Physics and Biomedical Engineering 2006.
    • Allen J, Oates CP, Lees TA, Murray A. . Physiological Measurement 2005, 26(5), 811-821.
    • McLaren A, Kerr S, Allan L, Steen IN, Ballard C, Allen J, Murray A, Kenny RA. . Stroke 2005, 36(5), 1026-1030.
    • Allan LM, Kerr SRJ, Ballard CG, Allen J, Murray A, McLaren AT, Kenny RA. . Dementia and Geriatric Cognitive Disorders 2005, 19(2-3), 140-144.
    • Allen J, Gehrke T, O'Sullivan JJ, King ST, Murray A. . Physiological Measurement 2004, 25(1), 107-117.
    • Langley P, Allen J, Bowers E, Drinnan M, Garcia E, King ST, Olbrich T, Sims AJ, Smith FE, Wild J, Zheng D, Murray A. . Computers in Cardiology 2004, 31, 637-640.
    • McLaren AT, Allen J, Murray A, Ballard CG, Kenny RA. . Dementia and Geriatric Cognitive Disorders 2003, 15(4), 183-188.
    • Allen J, Murray A. . Physiological Measurement 2003, 24(2), 297-307.
    • O'Sullivan J, Allen J, Murray A. . American Journal of Hypertension 2002, 15(3), 264-268.
    • Allen J, Frame JR, Murray A. . Physiological Measurement 2002, 23(2), 365-373.
    • Allen J, Murray A. . Journal of Human Hypertension 2002, 16(10), 711-717.
    • Drinnan MJ, Allen J, Murray A. . Physiological Measurement 2001, 22(3), 425-432.
    • O'Sullivan J, Allen J, Murray A. . Journal of Human Hypertension 2001, 15(3), 197-201.
    • Allen J, Murray A. . IEE Proceedings - Science, Measurement and Technology 2000, 147(6), 403-407.
    • Allen J, Murray A. . Physiological Measurement 2000, 21(3), 369-377.
    • Allen J, Murray A. . Physiological Measurement 1999, 20(3), 287-301.
    • Allen J, Oates CP, Henderson J, Jago J, Whittingham TA, Chamberlain J, Jones NAG, Murray A. . Angiology 1996, 47, 225-232.
    • Allen J, Murray A. . Physiological Measurement 1996, 17(4), 249-258.
    • Allen J, Murray A. . Physiological Measurement 1995, 16, 29-38.
    • Murray A, Allen J, Allen V, Clayton RH, McLaughlin NB, Relf GT. . Physiological Measurement 1994, 15(3), 235-242.

  • Book Chapters

    • Murray A, Allen J. . In: Herrick, A.L., Murray, A., Taylor, C., Smith, V., Cutolo, M, ed. Nailfold Capillaroscopy in Rheumatological Diseases. Springer, Cham, 2025, pp.217-238.
    • Badiola I, Lueken M, Allen J. Reflective Photoplethysmography. In: Steffen Leonhardt and Mohanashankar Sivaprakasam, ed. Unobtrusive and Contact-free Monitoring of Vital Signs. 2025. Submitted.
    • Mejia-Mejia E, Allen J, Budidha K, El-Hajj C, Kyriacou PA, Charlton PH. . In: Kyriacou PA and Allen J, ed. Photoplethysmography: Technology, Signal Analysis and Applications. Elsevier, 2021.
    • Allen J. . In: Kyriacou PA and Allen J, ed. Photoplethysmography: Technology, Signal Analysis and Applications. Elsevier, 2021.
    • Allen J, Chen F. . In: Kyriacou PA and Allen J, ed. Photoplethysmography: Technology, Signal Analysis and Applications. Elsevier, 2021.
    • Macdonald A, Petrova N, Ainarkar S, Allen J, Plassmann P, Whittam A, Bevans J, Ring F, Kluwe B, Simpson R, Rogers L, Machin G, Edmonds M. . In: Eddie NY; EtehadTavakol M, ed. Application of Infrared to Biomedical Sciences. Singapore: Springer Nature, 2017, pp.265-276.
    • Di Maria C, Hainsworth PJ, Allen J. . In: Eddie YK Ng and Mahnaz Etehadtavakol, ed. Application of Infrared to Biomedical Sciences. Singapore: Springer, 2017, pp.437-449.
    • Kyle D, Allen J, Overbeck K, Stansby G. . In: Eddie YK Ng and Mahnaz EtehadTavakol, ed. Application of Infrared to Biomedical Sciences. Springer Nature Singapore, 2017, pp.249-263.
    • Allen J. . In: Vardasca R; Gabriel Mendes J, ed. Innovative Research in Thermal Imaging for Biology and Medicine. Hershey, Pennsylvania: IGI Global, 2017, pp.1-33.
    • Allen J, Gorman G. . In: Francis Ring, Anna Jung, Janusz Zuber, ed. Infrared Imaging: A Casebook in Clinical Medicine. Institute of Physics Publishing, 2015.
    • Allen J, Robertshaw D, Leech N. . In: Francis Ring, Anna Jung, Janusz Zuber, ed. Infrared Imaging: A Casebook in Clinical Medicine. Institute of Physics Publishing, 2015.
    • Allen J, Oates C, Talbot D. . In: Francis Ring, Anna Jung, Janusz Zuber, ed. Infrared Imaging: A Casebook in Clinical Medicine. Institute of Physics Publishing, 2015.
    • Allen J, Burnett S, Di Maria C, Forrest I, Griffiths B. . In: Francis Ring, Anna Jung, Janusz Zuber, ed. Infrared Imaging: A Casebook in Clinical Medicine. Institute of Physics Publishing, 2015.
    • Di Maria C, Perros P, Dickinson J, Allen J. . In: Francis Ring, Anna Jung, Janusz Zuber, ed. Infrared Imaging: A Casebook in Clinical Medicine. Institute of Physics Publishing, 2015.
    • Allen J. . In: Cutolo, M, ed. Atlas of Capillaroscopy in Rheumatic Diseases. London: Elsevier, 2010, pp.chapter 7.

  • Conference Proceedings (inc. Abstracts)

    • Allen J, Stansby G, Lecouturier J, Wilkes S, Vale L, McCormack A, Sims A. . In: 40th International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC '18). 2018, Honolulu, HI: IEEE.
    • Petrova NL, MacDonald A, Ainarkar S, Plassmann P, Ring F, Simpson R, Bevans J, Allen J, Machin G, Edmonds ME. . In: Diabetes UK Professional Conference 2016. 2016, Glasgow, UK: Wiley-Blackwell Publishing Ltd.
    • Dinsdale G, Moore T, Manning J, Murray A, Berks M, Tresadern P, Taylor C, O'Leary N, Roberts C, Allen J, Anderson M, Cutolo M, Hesselstrand R, Howell K, Pyrkotsch P, Ravera F, Smith V, Sulli A, Wildt M, Herrick A. . In: Rheumatology 2015. 2015, Manchester, UK: Oxford University Press.
    • Dinsdalel G, Moore T, Manning J, Murray A, Berks M, Tresadern P, Taylor C, O'Leary N, Roberts C, Allen J, Anderson M, Cutolo M, Hesselstrand R, Howell K, Pyrkotsch P, Ravera F, Smith V, Sulli A, Wildt M, Herrick A. . In: 2014 ACR/ARHP Annual Meeting. 2014, Boston, MA: Wiley-Blackwell.
    • Di Maria C, Sharkey E, Klinge A, Zheng D, Murray A, O'Sullivan J, Allen J. . In: Computing in Cardiology. 2013, Zaragoza, Spain.
    • Di Maria C, Sharkey E, Klinge A, Zheng D, Murray A, O'Sullivan J, Allen J. . In: 39th Computing in Cardiology Conference. 2012, Krakow, Poland: IEEE.
    • Langley P, Di Marco LY, King S, Duncan D, Di Maria C, Duan W, Bojarnejad M, Zheng D, Allen J, Murray A. . In: Computing in Cardiology. 2011, Zhejiang University, Hangzhou, China: CinC.
    • Langley P, King S, Zheng D, Bowers E, Wang K, Allen J, Murray A. . In: 36th Annual Computers in Cardiology Conference (CINC). 2009, Park City, Utah, USA: IEEE.
    • Zarychta P, Sinith FE, King ST, Haigh AJ, Klinge A, Zheng D, Stevens S, Allen J, Okelarin A, Langley P, Murray A. . In: 34th Annual Conference on Computers in Cardiology. 2007, Durham, NC: IEEE.
    • Agarwal S, Allen J, Murray A, Purcell I. . In: Heart: Annual Scientific Conference of the British Society Promoting Cardiovascular Health. 2006, Glasgow, UK: BMJ Group.
    • Zheng D, Allen J, Murray A. . In: 33rd Conference on Computers in Cardiology. 2006, Valencia, Spain: IEEE.
    • Allen JM, Kokkinos EM, Murray A, Diffey BL, Mokhtary SL, Meggitt SJ, Harrison DK, Walker K, Isaacs JD, Pathare S, Griffiths B. . In: BSR Annual Meeting/BHPR Spring Meeting. 2006, Glasgow, UK: Rheumatology: S. Karger AG.
    • Langley P, Allen J, Bowers EJ, Drinnan MJ, Haigh AJ, King ST, Olbrich T, Smith FE, Zheng D, Murray A. . In: Computers in Cardiology. 2005, Lyon, France: IEEE Computer Society.
    • Smith FE, Haigh A, Wild J, Bowers EJ, King ST, Allen J, Zheng D, Langley P, Murray A. . In: IFMBE Proceedings NBC: 13th Nordic Baltic Conference on Biomedical Engineering and Medical Physics. 2005, Umeå, Sweden: International Federation for Medical and Biological Engineering.
    • Allen J, Walker K, Griffiths B, Murray A. . In: 8th Congress of the Polish Association of Thermology. 2005, Zakopane, Poland.
    • Allen J, Oates CP, Chishti A, Schaefer G, Zhu SY, Ahmed I, Talbot D, Murray A. . In: IFMBE Proceedings: 3rd European Medical & Biological Engineering Conference (EMBEC). 2005, Prague, Czech Republic: IFMBE.
    • Zheng D, Allen J, Murray A. . In: Computers in Cardiology. 2005, Lyon, France: IEEE.
    • Allen J, Schaefer CP, Oates A, Chishti I, Ahmed D, Talbot D, Murray A. . In: 18th Thermological Symposium of the Austrian Society of Thermology and the Ludwig Boltzmann Research Institute for Physical Diagnostics. 2005, Vienna, Austria.
    • Allen J, Oates CP, Chishti A, Ahmed I, Talbot D, Murray A. Combined thermal imaging and colour duplex ultrasound assessments of renal fistula patients. In: 2004 UK Symposium on Medical Infrared Thermography. 2004, NPL, Teddington. UK.
    • Kumar N, Allen J, Murray A, Griffiths B. . In: British Society for Rheumatology Annual Meeting. 2004, Edinburgh, UK: Oxford University Press.
    • Allen J, Gehrke T, King ST, O'Sullivan J, Murray A. . In: Clinical Autonomic Research: 3rd International Workshop on Non-Invasive Haemodynamic, Autonomic and Vascular Monitoring. 2003, Graz, Austria: Dr. Dietrich Steinkopff Verlag.
    • Allan LM, McLaren AT, Allen J, Ballard CG, McKeith IG, Murray A, Kenny RA. . In: First Congress of the International Society for Vascular Behavioural and Cognitive Disorders (VAS-COG). 2003, Gothenburg, Sweden.
    • Allen J, Murray A. . In: Assessment of the Active Cardiovascular System. 2003, York, UK.
    • Langley P, Bowers EJ, Brown N, Wild J, Drinnan MJ, Allen J, Sims AJ, Murray A. . In: Computers in Cardiology Meeting. 2003, Thessaloniki, Greece: IEEE.
    • Langley P, Bowers EJ, Wild J, Drinnan MJ, Allen J, Sims AJ, Brown N, Murray A. . In: 30th Annual Meeting on Computers in Cardiology. 2003, Thessaloniki Chalkidiki, Greece: IEEE.
    • Allen J, Murray A. . In: Clinical Autonomic Research: Third International workshop on The Human Circulation: Non-invasive Haemodynamic, Autonomic and Vascular Monitoring. 2003, Graz, Austria: Dr. Dietrich Steinkopff Verlag.
    • Bowers EJ, Langley P, Drinnan MJ, Allen J, Smith FE, Murray A. . In: Computers in Cardiology. 2002, Memphis, Tennesee, USA: IEEE.
    • Allen J, Murray A. . In: Thermology International: Physiological Measurement of Raynaud's Phenomenon and Peripheral Microvascular Disorders. 2002, Royal Free Hospital, London: UHLEN Verlagsgesellschaft m.b.H.
    • Allen J, Bannerjee J. Microvascular assessment of patients with Raynaud’s. In: Northern Vascular Centre - Invited Lecture. 2002, Freeman Hospital, Â鶹´«Ã½ upon Tyne.
    • Smith FE, Bowers EJ, Langley P, Allen J, Murray A. . In: Computers in Cardiology 2002. 2002, Memphis, Tennesee, USA: IEEE.
    • Murray A, Langley P, Smith FE, Bowers E, Allen J, Olbrich T, King S, Griffiths CJ, Sims AJ. . In: International Congress in Biological and Medical Engineering: The Bio-Era: New Frontiers, New Challenges. 2002, Singapore.
    • Allen J, Murray A. . In: 3rd European Meeting on Pulse Wave Analysis and Large Artery Function. 2001, London: Nature Publishing Group.
    • Langley P, di Bernardo D, Allen J, Bowers E, Smith F, Vecchietti S, Murray A. . In: Computers in Cardiology. 2001, Rotterdam: Institution of Electronic and Electrical Engineers.
    • Allen J, Murray A. Age-related changes in multi-site photoplethysmographic peripheral pulse timing characteristics. In: 2nd International workshop on non-invasive haemodynamic, autonomic and vascular monitoring. 2001, Graz, Austria.
    • Drinnan MJ, Allen J, Langley P, Murray A. . In: Computers in Cardiology 2000. 2000, Cambridge, MA, USA: Institution of Electronic and Electrical Engineers.
    • Allen J, Murray A. . In: Advances in Medical Signal and Information Processing, 2000. 1st International Conference. 2000, Bristol, UK: Institution of Electrical Engineers.
    • Allen J, Montague C, Murray A. . In: Journal of Vascular Research. 1999, S. Karger AG.
    • Allen J, Murray A. . In: 2nd European Meeting on Pulse Wave Analysis. Royal Society of Medicine. Abstract published in J Human Hypertension 2000; 14:279. 1999, London, England.

  • Digital or Visual Media

    • Allen J. . Institute of Physics Publishing (IOPP). Physics World podcast, 2022.

  • Edited Books

    • Allen J, Kyriacou PK, ed. . Lausanne: Frontiers Research Foundation, 2024.
    • Kyriacou PA, Allen J, ed. . Elsevier, 2021.

  • Editorial

    • Machin G, Allen J, Howell K, Simpson R. . Physiological Measurement 2019, 40(10), 100301.

  • Letters

    • Dinsdale G, Peytrignet S, Moore T, Berks M, Roberts C, Manning J, Allen J, Anderson M, Cutolo M, Hesselstrand R, Howell K, Pizzorni C, Smith V, Sulli A, Wildt M, Taylor C, Murray A, Herrick A. . Rheumatology 2018, 57(6), 1115-1116.
    • Kumar N, Griffiths B, Allen J. . Journal of Rheumatology 2006, 33(9), 1918-1919.

  • Online Publication

    • Allen J. . London: BioMed Central Limited, 2022. Available at: .

  • Patents

    • Allen J, Beale TAW, Wightman JP. . US 2019/0254602 A1, 22/08/2019.
    • Allen J, Beale T. . WO2017182830 A1, 26/10/2017.

  • Report

    • Allen J. . Â鶹´«Ã½ upon Tyne: University of Â鶹´«Ã½ upon Tyne, 2002.

  • Reviews

    • Charlton PH, Paliakaite B, Pilt K, Bachler M, Zanelli S, Kulin D, Allen J, Hallab M, Bianchini E, Mayer CC, Terentes-Printzios D, Dittrich V, Hametner B, Veerasingam D, Zikic D, Marozas V. . American journal of physiology. Heart and circulatory physiology 2022, 322(4), H493-H522.
    • Allen J, Zheng D, Kyriacou PA, Elgendi M. . Physiological Measurement 2021, 42(10), 100301.
    • Liu H, Allen J, Zheng D, Chen F. . Physiological Measurement 2019, 40(7), 07TR01.
    • Veerasamy M, Bagnall A, Neely D, Allen J, Sinclair H, Kunadian V. . Cardiology in Review 2015, 23(3), 119-129.
    • Allen J, Howell K. . Physiological Measurement 2014, 35(7), R91.