Chirality of magneto-electrodeposited metal film electrodes

Abstract

The chiral electrode behaviors of magneto-electrodeposited (MED) Ag and Cu films were examined for the electrochemical reactions of D-glucose, L-glucose and L-cysteine. The Ag and Cu films were electrodeposited under a magnetic field of 2 T parallel (+2 T) or antiparallel (−2 T) to the faradaic current. For MED films of both Ag and Cu, the oxidation current of L-glucose was larger than that of D-glucose on the +2 T-film electrodes, and the results were opposite on the −2 T-film electrodes. These facts demonstrate that the MED metal films possess the ability of chiral recognition for D-and L-glucoses. The MED Ag film electrodes also exhibited chiral behavior for the oxidation of L-cysteine.

The Fundamental and Underrated Role of the Base Electrolyte in the Polymerization Mechanism. The Resorcinol Case Study

“…Indeed, different results in the polymerization process can be expected as a function of the chemical nature of the base electrolyte anion. 42 − 46 …”

“…The active role of the base electrolyte gives reason for the experimental studies devoted to investigating the so-called “base electrolyte” effect. Indeed, different results in the polymerization process can be expected as a function of the chemical nature of the base electrolyte anion. − …”

Lorentz Force-Driven Autonomous Janus Swimmers

“…This is a well-known phenomenon, called magnetohydrodynamic effect (MHD). , The generated force, orthogonal to B ⃗, produces two types of MHD flow: a macro-MHD flow along the electrode edges and micro-MHD vortices on the surface of the electrode due to local inhomogeneities . This effect has been extensively used for the electrodeposition of copper, , silver, and polyaniline to produce chiral structures on the surface of electrodes. In addition, theoretical studies of the possible self-propulsion of active matter induced by the MHD acceleration of fluids have been recently performed .…”

“…38,39 The generated force, orthogonal to , produces 𝐵 two types of MHD flow; a macro-MHD flow along the electrode edges and micro-MHD vortices on the surface of the electrode due to local inhomogeneities. 37 This effect has been extensively used for the electrodeposition of copper, 40,41 silver 42 and polyaniline 43 to produce chiral structures on the surface of electrodes. Since for swimmers based on self-electrophoresis, two coupled redox reactions occur spontaneously at the anodic and cathodic parts of the intrinsically bipolar device, ionic currents are induced.…”