A globally ageing population is resulting in an increased prevalence of chronic conditions which affect older adults. Such conditions require long-term care and management to maximize quality of life, placing an increasing strain on healthcare resources. Intelligent environments such as smart homes facilitate long-term monitoring of activities in the home through the use of sensor technology.
View Article and Find Full Text PDFThe generation of reactive oxygen species (ROS) by plant cell suspension cultures, in response to the imposition of both biotic and abiotic stress, is well-documented. This study investigated the generation of hydrogen peroxide by hydrodynamically stressed cultures of Morinda citrifolia, over a 5-h period post-stress imposition. Suspensions were exposed to repeated passages through a syringe, under laminar flow conditions, corresponding to cumulative energy dissipation levels of approximately 3-6 J kg-1.
View Article and Find Full Text PDFThe use of a multisensor array based on chemical gas sensors to monitor plant cell cultures is described. The multisensor array, also referred to as an electronic nose, consisted of 19 different metal oxide semiconductor sensors and one carbon dioxide sensor. The device was used to continuously monitor the off-gas from two plant cell suspension cultures, Morinda citrifolia and Nicotiana tabacum, cultivated under batch conditions.
View Article and Find Full Text PDFLaser light scattering technology, as applied in the Lasentec focussed beam reflectance measurement (FBRM) system, was used to characterise two morphologically dissimilar plant cell suspension cultures, Morinda citrifolia and Centaurea calcitrapa. Shake-flask suspensions were analysed in terms of biomass concentration and aggregate size/shape over the course of typical batch growth cycles. For the heavily aggregated C.
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