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Browsing by Author "Centre for Research in Biodetection Technologies"
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Analysis of FDA warning letters issued to US medical device companies for CAPA related issues between 2013 and 2019
Tan, Christabel (2023-05-01) -
Application of RTDF to particles with curved surfaces
Hesse, E.; McCall, D.; Ulanowski, Z.; Stopford, C.; Kaye, Paul H. (2009)The applicability of the ray tracing with diffraction on facets model is extended to particles with curved surfaces. This allows tests against T-matrix calculations for larger size parameters and modelling of light scattering ... -
Application of RTDF to particles with curved surfaces
Hesse, E.; McCall, D.; Ulanowski, Z.; Stopford, C.; Kaye, Paul H. (University of Hertfordshire, 2008)The applicability of RTDF is extended to particles with curved surfaces. This allows tests against T-matrix calculations for larger size parameter and modeling of light scattering by more realistic particle shapes, such ... -
Applied Methods to Assess the Antimicrobial Activity of Metallic-Based Nanoparticles
Chung, Etelka; Ren, Guogang; Johnston, Ian; Matharu, Rupy Kaur; Ciric, Lena; Walecka, Agnieszka; Cheong, Yuen-Ki (2023-10-28)With the rise of antibiotic resistance, the drive to discover novel antimicrobial substances and standard testing methods with the aim of controlling transmissive diseases are substantially high. In healthcare sectors and ... -
Applying machine learning methods for characterization of hexagonal prisms from their 2D scattering patterns – an investigation using modelled scattering data
Salawu, Emmanuel Oluwatobi; Hesse, Evelyn; Stopford, Chris; Davey, Neil; Sun, Yi (2017-11-01)Better understanding and characterization of cloud particles, whose properties and distributions affect climate and weather, are essential for the understanding of present climate and climate change. Since imaging cloud ... -
Biosensors for Real-Time Monitoring of Biohazards and Disease in Aquaculture.
Johnston, Ian (2018-07-19)Early, reliable and systematic detection of waterborne chemical and biological pathogens is critical to prevent the spread of disease in aquaculture by enabling effective management practices. Laboratory-based technologies ... -
Characterisation and source identification of biofluorescent aerosol emissions over winter and summer periods in the United Kingdom
Forde, Elizabeth; Gallagher, Martin W.; Foot, Virginia; Sada-Esteve, Roland; Crawford, I.A.; Kaye, Paul; Stanley, Warren; Topping, David (2019-02-08)Primary biological aerosol particles (PBAPs) are an abundant subset of atmospheric aerosol particles which comprise viruses, bacteria, fungal spores, pollen, and fragments such as plant and animal debris. The abundance and ... -
Characterization of small ice crystals using frequency analysis of azimuthal scattering patterns
Ulanowski, Zbigniew; Stopford, Chris; Hesse, Evelyn; Kaye, Paul H.; Hirst, Edwin; Schnaiter, M. (2007)Azimuthal scattering patterns obtained from ice crystals using the Small Ice Detector 2 are examined. They are converted to frequency spectra using Fast Fourier Transform. To classify the shape of the crystals, the spectra ... -
Continuously variable mixing-ratio micromixer with elastomer valves
Tan, C. K. L.; Tracey, M.C.; Davis, J. B.; Johnston, I. D. (2005-10)We report a self-contained microfluidic alternate flow injection mixer (AFIM) employing piezoelectrically actuated, PDMS seal-valves to control injection. AFIMs employ pulsatile injection of liquids to enhance interface ... -
Controlled Actuation of Self-Propelled Droplets
Coudron, Loic; Lemenu, Clément; Lemaine, Kevin; McCluskey, Daniel; Tan, Christabel; Munro, Ian; Holdo, Arne; Tracey, Mark; Johnston, Ian (2020-10-09)In this paper we present controlled self-propelled actuation of droplets employing Laplace pressure gradients between two non-parallel superhydrophobic plates. For small angles (cos β ≈ 1) a simplification of available ... -
Copper Electrochemical Deposition in Macroporous Silicon Arrays for Through Silicon Via Applications
Defforge, Thomas; Coudron, Loic; Gautier, Gael; Grimal, Virginie; Ventura, Laurent; Tran Van, Francois (Institute of Electrical and Electronics Engineers (IEEE), 2011)The present paper deals with the realization of high conductivity through silicon via from macroporous silicon arrays. The pores were first etched by anodization into a hydrofluoric acid mixture. The high aspect ratio via ... -
Design & Development of the electronics and control system - (D6.1): Worn Bio-detector Phase 2
McCluskey, Daniel; Munro, Ian; Coudron, Loic (UH, 2017-10-31) -
Design and field campaign validation of a multi-rotor unmanned aerial vehicle and optical particle counter
Girdwood, Joseph; Smith, Helen R.; Stanley, Warren; Ulanowski, Joseph; Stopford, Chris; Chemel, Charles; Doulgeris, Konstantinos-Matthaios; Brus, David; Campbell, David; Mackenzie, Robert (2020-12-07)Small unmanned aircraft (SUA) have the potential to be used as platforms for the measurement of atmospheric particulates. The use of an SUA platform for these measurements provides benefits such as high manoeuvrability, ... -
Design and field campaign validation of a multi-rotor unmanned aerial vehicle and optical particle counter
Girdwood, Joseph; Smith, Helen R.; Stanley, Warren; Ulanowski, Joseph; Stopford, Chris; Chemel, Charles; Doulgeris, Konstantinos-Matthaios; Brus, David; Campbell, David; Mackenzie, Robert (2020-12-07)Small unmanned aircraft (SUA) have the potential to be used as platforms for the measurement of atmospheric particulates. The use of an SUA platform for these measurements provides benefits such as high manoeuvrability, ... -
Design of a high efficiency cyclone for collection of rare and low concentration airborne pathogens
Baxter, Richard; Johnston, Ian; Kaye, Richard; Munro, Ian; Tracey, Mark; Day, Rodney; McCluskey, Daniel (2017-03-16)Recent serious outbreaks of pathogens such as Chalara Fraxinea, (Ash Dieback) demonstrate the vulnerability of UK’s forests, woods, and trees. Early detection of threats is critical in the fight against such tree pests and ... -
Design Review of ESP/EWOD/ESP Translation Mechanisms - (D3.1): Worn Bio-detector Phase 2
McCluskey, Daniel; Lodge, Matthew; Coudron, Loic; Munro, Ian (UH, 2017-10-31) -
Detection of Airborne Biological Particles in Indoor Air Using a Real-Time Advanced Morphological Parameter UV-LIF Spectrometer and Gradient Boosting Ensemble Decision Tree Classifiers
Crawford, Ian; Topping, David; Gallagher, M.W.; Forde, Elizabeth; Lloyd , J R; Foot, Virginia; Stopford, Chris; Kaye, Paul H. (2020-09-29)We present results from a study evaluating the utility of supervised machine learning to classify single particle ultraviolet laser-induced fluorescence (UV-LIF) signatures to investigate airborne primary biological aerosol ... -
Developing microfluidic devices and techniques for isolation and detection of Extracellular Vesicles (EVs)
Lekkala, Himayasri; Dimov, Nikolay; Johnston, Ian; Inal, Jameel (2020-10-09)The purpose of this research is to develop microfluidic devices and systems for the effective isolation of bacterial Extracellular vesicles (EVs) by applying Tangential Flow Filtration (TFF) operation. The purification and ... -
Developing microfluidic platforms for rapid identification of new targets for neurodegenerative disorders
Pacheco Torres, Paloma; Kaye, Richard; Johnston, Ian; Dimitriadi, Maria; Tan, Christabel (2023-10-19) -
Development of an automated smart trap for wheat pathogens
Kaye, Richard; Johnston, Ian; Baxter, Richard; Munro, Ian; Tracey, Mark; Day, Rodney; McCluskey, Daniel (2017-03-16)National surveys show fungicide use on wheat continues to increase despite fluctuations in disease pressure, reaching a 30 year high in 2012 (Defra). Septoria tritici is the most significant foliar disease in UK wheat ...