No abstract

Portable sweat analysis devices for real‐time monitoring of health‐related biomarkers with great detection accuracy and high sensitivity are attracting public interest. Here, we report a flexible fabric sweat analysis devices bimetallic Metal Organic Frameworks (MOFs) for detection of glucose in sweat without any biological enzymes. The synergy between Ni2+ and Co2+ and the large surface area (424.41 m2 g−1) and high porosity (0.0542 cm3 g−1) of NiCo‐MOF make NiCo‐MOF an interesting electrode modification material in the working electrode. Furthermore, the ultra‐high porosity and huge surface area of the MOFs structure are required for electrocatalysts in alkaline media. On the basis of the above, we have developed a fabric‐based analytical patch, which is sufficient for simultaneous real‐time detection of glucose in sweat.

Correction for ‘Nanoporous hybrid CuO/ZnO/carbon papers used as ultrasensitive non-enzymatic electrochemical sensors’ by Minwei Zhang et al., RSC Adv., 2019, 9, 41886–41892. DOI: 10.1039/C9RA08223A.

Transition metal oxides (TMO) are promising electrochromic (EC) materials for applications such as smart windows and displays, yet challenge still exists to achieve good flexibility, high coloration efficiency and fast response simultaneously. MXenes (e.g. Ti3C2Tx) and their derived TMOs (e.g. 2D TiO2) are good candidates for high-performance and flexible EC devices because of their 2D nature and the possibility of assembling them into loosely networked structures. Here we demonstrate flexible, fast, and high-coloration-efficiency EC devices based on self-assembled 2D TiO2/Ti3C2Tx heterostructures, with the Ti3C2Tx layer as the transparent electrode, and the 2D TiO2 layer as the EC layer. Benefiting from the well-balanced porosity and connectivity of these assembled nanometer-thick heterostructures, they present fast and efficient ion and electron transport, as well as superior mechanical and electrochemical stability. We further demonstrate large-area flexible devices which could potentially be integrated onto curved and flexible surfaces for future ubiquitous electronics.