Pt/Zn-TCPP Nanozyme-Based Flexible Immunoassay for Dual-Mode Pressure–Temperature Monitoring of Low-Abundance Proteins

Analytical Chemistry, Год журнала: 2024, Номер 96(21), С. 8740 - 8746

Опубликована: Май 9, 2024

Pressure and temperature, as common physical parameters, are important for monitoring human health. In contrast, single-mode is prone to causing experimental errors. Herein, we innovatively designed a dual-mode flexible sensing platform based on platinum/zinc-meso-tetrakis(4-carboxyphenyl)porphyrin (Pt/Zn-TCPP) nanozyme the quantitative of carcinoembryonic antigen (CEA) in biological fluids with pressure temperature readouts. The Pt/Zn-TCPP catalytic photothermal efficiencies was synthesized by means integrating photosensitizers into porous materials. system after antigen–antibody reaction recognized using skin-like sensor digital multimeter readout, whereas acquired via photoheat conversion under 808 nm near-infrared (NIR) irradiation portable NIR imaging camera smartphone. Meanwhile, carried out homemade three-dimensional (3D)-printed device. Results revealed that developed immunosensing could exhibit good responses within dynamic range 0.5–100 ng mL–1 CEA detection limits 0.24 0.13 mL–1, respectively. addition, were sensed simultaneously without crosstalk interference. Importantly, can effectively avoid false alarms during measurement, thus providing great potential simple low-cost development point-of-care testing.

Язык: Английский

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Nanoflower‐Like CuPd/CuO Heterostructure for an Energy‐Output Electrocatalytic System Coupling Ammonia Electrosynthesis and Zinc‐Nitrate Battery

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) can effectively alleviate pollution and simultaneously realize ammonia electrosynthesis at room temperature. However, it remains a significant challenge for NO RR to achieve high Faradic efficiency in full concentration range. Herein, nanoflower‐like copper‐palladium alloy/CuO heterostructure (CuPd/CuO@NF) is successfully fabricated by the hydrothermal synthesis of CuO nanoflowers subsequent formation CuPd alloy. The as‐obtained CuPd/CuO@NF exhibits remarkable electrochemical performance − ‐N range from 20 1400 ppm, especially with conversion rate 97.8% NH selectivity 99.3% 94.2% yield 1.37 mmol h −1 cm −2 ppm. In‐situ Fourier transform infrared spectroscopy Raman spectra reveal that first catalyzes 2 , which rapidly reduced forming *NH, *NH OH intermediates. Density functional theory calculations suggest NHO route thermodynamically favorable. When applied zinc‐nitrate battery, demonstrates maximum power density 53.7 mW 99.9% 94.4%. This work offers valuable insights into design novel electrocatalysts batteries.

Язык: Английский

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Pulsed Airstream‐Driven Hierarchical Micro‐Nano Pore Structured Triboelectric Nanogenerator for Wireless Self‐Powered Formaldehyde Sensing

Small, Год журнала: 2024, Номер 20(47)

Опубликована: Авг. 14, 2024

Abstract Formaldehyde (HCHO), as a common volatile organic compound, has serious impact on human health in the daily lives and industrial production scenarios. Given security issue of HCHO detection danger warning, ZIF‐8/copper foam based pulsed airstream‐driven triboelectric nanogenerator (ZCP‐TENG) is designed to develop self‐powered sensors. By combining contact electrification electrostatic induction, ZCP‐TENG can be utilized for airflow energy harvesting concentration detection. The short‐circuit current output power reach 2.0 µA 81 µW (20 ppm). With high surface area, abundant micro‐nano pores, excellent permeation flux, ZCP‐TENGs exhibit sensing response (61.3% at 100 ppm), low limit (≈2 rapid response/recovery time (14/15 s), which served highly sensitive selective sensor. connecting an intelligent wireless alarm, are construct warning system monitor remind exceedance situations. Moreover, by support vector machine model, difference concentrations quickly identified with average prediction accuracy 100%. This study illustrates that have broad application prospects provide guidance monitoring warnings.

Язык: Английский

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Construction and Progress of Small Molecule‐Based Coupled Electrolyzers

Advanced Energy Materials, Год журнала: 2024, Номер 14(42)

Опубликована: Авг. 13, 2024

Abstract Coupled electrolyzer is a desirable way to realize efficient energy conversion from electricity chemical energy. Using coupled electrolyzers highly valuable chemicals (e.g., H 2 , CH x COO − nitrile, S, NH 3 CO) can be obtained at low voltages, environmental pollutants alleviated, and wastewater ammonia, urea, hydrazine) recycled. They are even helpful the goal of carbon peaking neutrality. Compared traditional methods, small molecule‐based more cost‐efficient. This review summarizes state‐of‐art electrolyzers, mainly replacement oxygen reduction reaction with oxidation reactions molecules their further coupling cathodic such as hydrogen evolution (HER), (ORR), CO (CO RR), N (NRR), other matching molecules. In terms molecules, two types covered: sacrificial agent (SAOR) electrochemical synthesis (ESR). After detailing design principle several construction, characterization, performance systematically overviewed along discussion outline current challenges prospects this appealing strategy.

Язык: Английский

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Coupling Anodic Reactions in Electrochemical Nitrate Reduction to Ammonia

ChemElectroChem, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

Abstract Ammonia is a widely produced chemical globally, primarily used in fertilizers and products. Recently, it has gained attention as green hydrogen carrier due to its high content energy density. However, the conventional Haber‐Bosch process for ammonia synthesis energy‐intensive, requiring temperatures pressures. Also, significant source of CO 2 emissions. To address these environmental concerns, electrochemical nitrate reduction reaction (NO 3 RR) emerged promising approach production, utilizing from wastewater renewable sources. While most previous research focuses on cathodic needs emphasize importance optimizing anodic reactions NO RR systems reduce consumption improve efficiency. The oxygen evolution (OER), typically coupled with RR, kinetically slow requires standard potential. Therefore, alternative lower potentials not only save but also yield valuable byproducts. Furthermore, coupling like zinc oxidation allows power generation, where positive cell potential indicates spontaneous reactions. This dual approach, saving opens new pathways sustainable reducing overall demands while supporting shift toward systems.

Язык: Английский

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Recent advances in electrochemical cathodic nitrogen oxide reduction coupled with thermodynamically favorable anodic oxidation

Nano Energy, Год журнала: 2025, Номер unknown, С. 110939 - 110939

Опубликована: Апрель 1, 2025

Язык: Английский

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Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 15, 2024

Ammonia (NH

Язык: Английский

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Electrocatalytic C–C coupling of CO₂ and formaldehyde to synthesize acetate via membrane electrode assembly

Green Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A novel strategy for acetate production from electrocatalytic coupling of carbon dioxide and formaldehyde in a membrane electrode assembly cell is reported.

Язык: Английский

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High-throughput screening of phosphide compounds for potassium-ion conductive cathode application

Journal of Materials Informatics, Год журнала: 2025, Номер 5(2)

Опубликована: Март 11, 2025

Cathode materials are crucial in potassium (K) batteries, directly impacting their performance and lifespan. In this study, we used a combination of geometrical-topological (GT) analysis, bond valence site energy (BVSE), Kinetic Monte Carlo (KMC), first-principles calculations to screen potential cathode for K-ion batteries among inorganic phosphides. Through GT screened 143 K- P-containing compounds identified 30 with two- or three-dimensional migration pathways. BVSE further narrowed down 13 energies below 1 eV. KMC simulations ionic conductivity led the selection K3Cu3P2 detailed calculations. It was demonstrated that possesses reversible capacity 72.47 mAh·g-1, minimal volume change (1.47%), charge compensation mechanism involving Cu P. Its low barrier contributes high diffusion coefficient 1.87 × 10-3 S·cm-1 at 25 °C, making promising candidate stable efficient applications.

Язык: Английский

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Leaf‐Architecture and Function‐Mimicked Ensemble of Hierarchical Ag Nanowires/Ti₃C₂T_x MXene@Sulfur‐Vacancy Rich ZnIn₂S₄ Nanosheet Arrays for Enhanced Photoredox Catalysis

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract In pursuing efficient photocatalytic systems, nature‐inspired photocatalysis has emerged as a promising strategy to optimize charge transfer and surface reactions. Inspired by the structure function of plant leaves, leaf‐like hierarchical heterostructure is constructed. ZnIn 2 S 4 nanosheet arrays are anchored on integrated Ag nanowires network with Ti 3 C T x MXene support, during which process sulfur vacancies (V ) formed due anti‐strong metal‐support interaction. The supported serve mesophyll absorb photons convert solar‐to‐chemicals, embedded in interface veins shuttle carriers for redox reactions, V resemble stomata facilitate adsorption reactants. Furthermore, able reduce thermodynamic barriers synergistic effect these functional components enables hydrogenation several nitroaromatic compounds, exhibits H evolution rate 1119.4 µmol g⁻¹ h⁻¹ under visible‐light irradiation, ≈7.9 times high that pure . This study highlights pivotal role design inspired nature advancing solar‐to‐chemical conversion paves way development next‐generation photocatalysts green chemistry energy applications.

Язык: Английский

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