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Purpose The purpose of this paper is to design a human health monitoring system (HHMS) which helps in improving diagnostics at an earlier stage and monitoring after recoup. Design/methodology/approach The methodology involves a combination of three subsystems which monitors the human parameters such as temperature, heart rate, SpO2, fall and location of the person. Various sensors are used to extract the human parameters, and the data are analysed in a computer subsystem, through Global System for Mobile Communications (GSM) and Internet of Things (IoT) subsystem; the parameters measured are communicated to the caregiver and doctor. Findings Results have successfully demonstrated monitoring human temperature human temperature, heart rate, SpO2 and fall and location continuously using the HHMS prototype. Reliability of the technique used for monitoring these parameters is assessed by Proteus Professional 8 and LabVIEW simulators. Practical implications The HHMS enables long-term monitoring without any sort of interference from regular activities and allows daily health monitoring, elderly monitoring and so on. Originality/value First, the proposed HHMS simultaneously monitors five human parameters. Second, unlike most monitoring systems which uses older communication module, the proposed system is made smart using IoT. The proposed method has been made into a prototype system as detailed in this paper. The proposed HHMS can achieve high detection accuracy. Therefore, this system can be reliably deployed into a consumer product for use as monitoring device with high accuracy.

Fluoride removal in drinking water is usually performed through cost and energy intensive membrane techniques such as reverse osmosis, dialysis and electro-dialysis. Defluoridation using an effective and low cost ultra filtration membrane system is reported in this work. Iron (III) oxide (Fe 2 O 3) nanoparticles modified polyethersulfone (PES)/cellulose acetate (CA) blend membranes were fabricated by phase inversion method. Composite membranes were prepared by incorporating incremental amounts of Fe 2 O 3 nanoparticles. Synthesized membranes were analysed for morphological studies and ultra filtration characteristics. It was observed that the inclusion of iron oxide nanoparticles influenced the membrane structure resulting in enhanced ultra filtration properties. All of the iron oxide nanoparticles incorporated PES/CA membranes possessed increased hydrophilicity, porosity, water uptake and pure water flux as compared to pristine PES membrane. Membrane with 0.5 wt% Fe 2 O 3 nanoparticles exhibited a maximum water flux of 156 L m-2 h-1. Fluoride removal performance confirmed the defluoridation potential of the Fe 2 O 3 nanoparticles blended PES/CA membranes. Maximum fluoride removal efficiency of 70.3% was observed for a single ultra filtration run. SEM and AFM examinations showed the structural alterations in the composite membranes due to the nanoparticles addition. Reusability studies confirmed the enhanced durability of the blended membrane. Domestic application of the composite membrane was carried out by assessing its fluoride removal ability in natural water samples obtained from fluoride endemic area.

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