electrochemical-sensors-and-biosensors

Solid-state silver/silver chloride pseudo-reference electrodes (PREs) are critical for miniaturized, low-cost disposable electrochemical sensors. This work systematically explores the coupling effects of substrate roughness and NaClO chlorination parameters on AgCl film microstructure and electrode electrochemical performance. Magnetron sputtering was used to deposit Cr adhesive layer/Ag function…

Renewable electricity-driven water electrolysis offers a promising route to low-emission hydrogen, yet exceptional laboratory catalyst performance does not necessarily translate into efficient, durable, and scalable electrolyzer operation. This review examines nanostructured electrocatalysts across interconnected length scales, linking atomic-level electronic structure and adsorption energetics w…

The 23-year-old reticulated python has returned to her ‘bright and feisty self’ after receiving electrochemotherapy

Nature Chemistry, Published online: 20 August 2026; doi:10.1038/s41557-026-02219-1 Gas evolution compromises the safety and commercial viability of high-energy lithium metal batteries. Now it has been shown that CH4 generated by ether-based electrolyte decomposition at the Li anode dominates gas evolution. A facile anode activation strategy suppresses CH4-forming interfacial reactions, dramatical…

Nature Chemistry, Published online: 20 August 2026; doi:10.1038/s41557-026-02239-x High-voltage batteries are limited by electrolyte oxidation. Now, a pathway-selective strategy limits electrolyte oxidation by replacing the susceptible α-hydrogens, moving beyond frontier orbital-based design and enabling stable operation at high voltage without fluorination.

Nature Communications, Published online: 20 August 2026; doi:10.1038/s41467-026-76640-y Multistep electrochemical reactions are limited by unstable intermediates and competitive adsorption at catalytic sites. Here, the authors report spatially separated zinc sites which steer interfacial C-N coupling and enable selective and stable oxime electrosynthesis from nitrate and cyclohexanone.

In recent years, the electrochemical synthesis of peroxides has attracted renewed interest as a potential environmentally friendly production compared to the established anthraquinone process. In addition, it is possible to produce the peroxides directly on site, eliminating the need for expensive and hazardous transportation and storage. Cathodic production of hydrogen peroxide from oxygen is al…

Electrochemical CO2 reduction represents a promising approach for mitigating carbon emissions while generating value-added fuels and chemicals. While catalyst design mainly dictates activity and product selectivity, system-level performance is strongly influenced by the interplay between electrolyzer configuration and operating parameters. In this study, a zero-gap membrane electrode assembly ele…

Nature Nanotechnology, Published online: 12 August 2026; doi:10.1038/s41565-026-02257-3 Multi-element nanoscale doping suppresses electrochemomechanical failure caused by unstable Fe coordination in Fe-rich Na layered oxides, yielding long-lifespan ampere-hour-level Na-ion batteries.

Nature Catalysis, Published online: 17 August 2026; doi:10.1038/s41929-026-01601-z Achieving a high selectivity for multicarbon alcohols via electrocatalytic CO2 reduction on copper has proved challenging. Here a nanoconfined catalytic reactor strategy integrates localized CO2 supersaturation, leading to the stabilization of ethoxy intermediates and a 70.3% Faradaic efficiency for ethanol at prac…

How can molecular recognition improve vanillin detection? Our study develops a Co₃O₄/TiO₂ molecularly imprinted electrochemical sensor, combining enhanced charge transfer with selective recognition and DFT-guided mechanistic insights.

MXenes combine metallic conductivity, redox-active transition-metal layers, and chemically tunable surfaces, making them attractive components of negative-electrode systems for lithium-, sodium-, potassium-, zinc-, and multivalent-ion batteries. However, interpreting MXene-based negative-electrode systems only by reversible capacity obscures the coupled processes that determine their electrochemi…

Magnesium supplements are gaining popularity to treat conditions such as insomnia, migraines, and constipation. Most magnesium salts are extracted from rocks by crushing and heating them, which requires a lot of energy. Now, researchers reporting in ACS Energy Letters have developed bismuth electrodes that selectively pull magnesium ions from seawater, another abundant source of the element. They…

Magnesium supplements are gaining popularity to treat conditions such as insomnia, migraines, and constipation. Most magnesium salts are extracted from rocks by crushing and heating them, which requires a lot of energy. Now, researchers reporting in ACS Energy Letters have developed bismuth electrodes that selectively pull magnesium ions from seawater, another abundant source of the element. They…

Abstract Cadmium (Cd2+), among the most hazardous heavy-metal pollutants, enters ecosystems through both natural processes and anthropogenic activities. This study developed an electrochemical sensor using a two-dimensional nanomaterialcomposite strategy, which synergistically integrates ion-imprinted poly(3,4-ethylenedioxythiophene) (IIP-PEDOT) with graphite carbon nitride (g-C3N4) nanomaterials…

As dopamine is an important neurotransmitter involved in neural signaling and certain diseases, it is crucial to detect it in patients to regulate bodily functions. In this study, novel S-doped, P-doped, and S,P-co-doped graphene oxide pencil graphite electrodes were prepared in a single step via the chronoamperometric method for use in a dopamine sensor. The anodic oxidation potentials of dopami…

This study presents a mathematical model of a non-steady-state amperometric biosensor with combined enzyme kinetics and diffusion restrictions, under substrate and product inhibition. An enzymatic reaction with non-Michaelis-Menten dynamics is associated with nonlinear terms in the diffusion equations of the structure.We applied the Laplace Homotopy Perturbation Method (LHPM) to the proposed non-…

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