Monitoring of Bisphenol A in water and soft drink products using electrochemical sensor amplified with TiO2-SWCNTs and ionic liquid

A wearable colorimetric sweat pH sensor-based smart textile for health state diagnosis

“…Many researchers have developed sensitive pH sensors for CF diagnosis and health state monitoring. [11][12][13][14][15][16][17][18][19] Various materials such as ionic liquid, 11,17 metal (Au or Pt), 16,19 and carbon-based electrodes 15,18 have been employed for pH sensors. Because of their fluidity and poor mechanical characteristics, the liquid membranes of ionic liquid-based pH sensors may suffer from reduced quantities of liquid after repeated sensing cycles.…”

“…21 Furthermore, in previous research, almost all pH sensors required additional measurement equipment, which makes them difficult to be applied in wearable and simple diagnosis systems for continuous disease state monitoring. 15,17,18 The above-mentioned pH sensors have the disadvantage that sweat must be collected separately for pH measurement. As an alternative, several sweat pH sensors that can be directly attachable to the skin, based on colorimetric principles, have been developed.…”

ZnO/1-hexyl-3-methylimidazolium chloride paste electrode, highly sensitive lorazepam sensor

“…For overcoming to this problem, modification and amplification of electrochemical sensors is necessary [15]. Modification of electrodes is one of the proven solutions to increase the sensitivity and selectivity of electrochemical sensors [16][17][18][19][20][21]. Different types of mediators such as polymers, nanomaterials, ionic liquids, MOF etc.…”

Rapid detection of gingerol and thymol in medicinal foods based on Fe2O3 nanoparticles modified glassy carbon electrode

“…The physical and chemical properties of metal oxide nanostructures are known to depend on several design parameters such as particle size, morphology, interparticle distances and the dielectric constant of the surrounding medium. Moreover, the metal oxide nanostructures exhibit several unique features such as functional biocompatibility, biosafety, chemical stability and improved catalytic properties which are essential characteristics for various applications such as fuel cell[ 13 ], energy storage[ 14 , 15 ], and sensors[ 16 – 19 ]. In particular, the advent of nanomaterials enabled the discovery of a number of electrochemical sensors with high performance.…”

“…The presence and amounts of heavy metals, pathogens, colouring agents, preservatives, and pesticides must be monitored regularly in order to ensure food quality. Nasehi et al fabricated an electrochemical sensor using TiO 2 -SWCNTs and 1-hexyl 3-methyl imidazolium hexafluorophosphate as electrode material for monitoring Bisphenol-A in water and soft drinks[ 19 ]. Buledi et al developed an electrochemical sensor based on WO 3 -rGO nanocomposite for determining ‘mancozeb’, a biocide, in vegetables and fruits[ 18 ].…”