Stimuli-responsive conductive hydrogel touch sensor for electrochemical and fluorescence monitoring of acetylcholinesterase activity and inhibition

N‐(4‐Chloromethylbenzyl)‐N, N‐dimethyldodecan‐1‐aminium Chloride: A Quaternary Ammonium Surfactant as Corrosion Inhibitor

“…This shows that the examined molecule's adsorption delays C1018 CS corrosion in 15 % HCl without changing the electrochemical properties of the corrosion process. [44,45] An in-depth examination of the Bode-phase plots revealed that they represent one-and two-time constants for lower and higher concentrations within the investigated frequency range. The single maxima in the Bode plots are caused by a single charge transfer process that takes place at the metal-electrolyte contact.…”

“…The single maxima in the Bode plots are caused by a single charge transfer process that takes place at the metal-electrolyte contact. [44,45] The two-time constant Bode plot phenomena are typically seen in anticorrosive coatings, where the second time constant is obtained from the disintegration of the coating structures or the emergence of pores and cracks. [46] The formation and expansion of the second-time constant in the Bode plots of our current work may be due to the penetration of corrosive species like water and chloride ions through the adsorbed inhibitor layers.…”

“…The rise in resistance and phase angle values is ascribed to more molecules adhering to the electrode's surface with increasing concentration, creating a barrier that prevents the metal from dissolving in acidic conditions. [44,45] The Nyquist plots were fitted and analyzed using the simple electrical equivalent circuit depicted in Figure 7d.…”

A Pitaya-Inspired Modular Cylindrical MOF-Based Capsule Design for Pesticide Signal Probes

“…Inspired by the unique self-protection strategies, designing a self-assembled modular capsule is of interest in material science. Both hydrogels and metal–organic frameworks (MOFs) have 3D porous structures, where hydrogels are soft wet materials with random polymer structures, − and MOFs are solid crystalline materials with definite frameworks, tunable surface groups, controllable pores, and adjustable sizes. − Purposefully, the capsules can combine new polymer materials with various fillers by adjusting the cross-linking strategy, and the synergy in the cross-linking networks to realize better properties. Recently, scientists developed a variety of MOF-based hydrogels, containing a (ZIF-8)/polysaccharide (sodium alginate-kappacarrageenan, SC) hydrogel bead, MOF-802@PVA hydrogel, gelatin/UiO-66-NO 2 , CaAlg-PET membrane, etc.…”

A visualized sensor based on layered double hydroxides with peroxidase-like activity for sensitive acetylcholinesterase assay

“…Aiming at these requirements, numerous techniques have been developed for AChE assay, including colorimetry, 4,5 uorescence, 6,7 electrochemical approaches, 8,9 and chemiluminescence methods. 10 These approaches have achieved great success in the analysis of AChE in the laboratory.…”