In this study, a novel <i>in situ</i> choline sensor was assembled by attaching the binary Mn<sub>2</sub>O<sub>3</sub>/NiO nanoparticles (NPs) onto a glassy carbon electrode (GCE). Initially, Mn<sub>2</sub>O<sub>3</sub>/NiO NPs were synthesized <i>via</i> a wet-chemical process and fully characterized <i>via</i> XRD, XPS, FESEM, EDS, FTIR and UV-Vis methods. The analytical performances of the choline sensor were evaluated by an electrochemical method in the phosphate buffer phase. The estimated linear dynamic range (LDR) was found to be 0.1 nM to 0.1 mM. The other analytical performances of the choline sensor, such as sensitivity (16.4557 μA μM<sup>-1</sup> cm<sup>-2</sup>) and detection limit (5.77 ± 0.29 pM), were also calculated very carefully from the calibration plot. Overall, the choline sensor exhibited a reliable reproducibility, <i>in situ</i> validity, selectivity, interference effect, stability, and intra-day and inter-day performances with high accuracy in a short response time. Moreover, the probe was successfully applied to detect choline in real human, mouse and rabbit serum. This fabrication route would be a novel approach for the detection of selective biochemical sensor in the healthcare and biomedical fields.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Green chemistry and technology is the design of chemical manufacturing systems to minimize their adverse affects on the environment. Thus, a primary goal of green chemistry and technology is to reduce the environmental impact of chemical processes and chemical manufacturing while simultaneously enhancing the overall process performance. Although it is beneficial to simply reduce the use of organic solvents in chemical processes, green chemistry and technology goes further, in that it evaluates the entire thing to identify techniques that can be applied to minimize the overall process hazard, while maintaining economic practicality. Evaluation of the environmental impacts of the manufacturing process requires a systematic approach and appropriate metrics that permit quantitative assessment of environmental hazards. Thus, this review begins with a introduction of cation-exchange materials the drivers for green technology and the metrics through which processes can be started. Then, the cation-exchange materials have so many applications described in this review and their many derivative and we describes inorganic to nanocomposite cation exchange materials and their technological improvement from old era to latest age of nano because green chemistry can be applied to real processes. Two elements are specifically highlighted: (a) the use of new materials to facilitate active and selective chemistry and the use of said materials within removal of environment hazardous.
γ-Ce<sub>2</sub>S<sub>3</sub>-decorated multi-walled carbon nanotube nanocomposite (Ce<sub>2</sub>S<sub>3</sub>-CNT NC) was synthesized by a wet chemical method in basic media.
Our studies have shown that the crystal colour is correlated with one of two molecular conformations which are different in energy, but that the less stable conformation can be stabilised by its host crystal lattice. Graphical abstractGraphical representation of the structural and colour change in the tribochromic compound (III).
In the title compound, C(14)H(10)F(3)N(3)O(3)S, there are significant twists in the mol-ecule, as seen in the values of the dihedral angles between the pyrazole ring and each of the furan [31.1 (2)°] and benzene rings [55.58 (10)°]. The amino N atom occupies a position almost normal to the benzene ring [N-S-C(ar)-C(ar) (ar = aromatic) torsion angle = 83.70 (19)°]. One amino H atom forms a hydrogen bond to the tricoordinate pyrazole N atom and the other inter-acts with a sulfonamide O atom, forming a supra-molecular chain along [010]. The chains are consolidated into a supra-molecular layers via C-H⋯O inter-actions involving the second sulfonamide O atom; layers stack along [10-1]. The furan ring was found to be disordered over two diagonally opposite orientations of equal occupancy.
