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Innovating carbon-based electrodes for direct neurochemical detection along the brain-immune axis 创新碳基电极,沿脑免疫轴进行直接神经化学检测
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-03-04 DOI: 10.1016/j.coelec.2025.101678
Vivek Subedi, Sainath Mohan Kumar, Moriah E. Weese-Myers, Ashley E. Ross
The use of carbon-based electrodes for direct neurochemical detection along the brain-immune axis is emerging as a promising frontier. Carbon is commonly chosen as an electrode material due to its numerous advantages, including cost-effectiveness, high electrical conductivity, excellent chemical stability, wide electrochemical window, and biocompatibility. To further enhance performance, carbon fibers have been coated with nanomaterials including carbon nanotubes (CNTs), graphene, carbon nanospikes, among others. Traditional carbon electrodes—typically constructed from carbon fibers—are limited by their heterogeneity, which restricts their adaptability. Recent advancements have moved toward developing highly sensitive and selective carbon materials through customization. The current research is increasingly focused on developing alternative materials to replace carbon fibers, with the aim of preventing coating degradation, improving sensitivity, achieving frequency-independent properties, and lowering detection limits. This current opinion discusses the key innovations in modern carbon-based materials for brain-immune studies, with an emphasis on the importance of tailoring surfaces for specific analytes and applications.
利用碳基电极沿脑免疫轴进行直接神经化学检测正成为一个有前途的前沿。碳具有成本效益高、导电性好、化学稳定性好、电化学窗口宽、生物相容性好等优点,因此被广泛地用作电极材料。为了进一步提高性能,碳纤维被涂上了纳米材料,包括碳纳米管(CNTs)、石墨烯、碳纳米尖刺等。传统的碳电极通常由碳纤维构成,由于其非均质性而限制了其适应性。最近的进展是通过定制开发高灵敏度和选择性的碳材料。目前的研究越来越侧重于开发替代碳纤维的材料,以防止涂层降解,提高灵敏度,实现与频率无关的性能,并降低检测限。本文讨论了用于脑免疫研究的现代碳基材料的关键创新,强调了为特定分析物和应用量身定制表面的重要性。
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引用次数: 0
Unlocking emerging catalytic applications of single-entity collision electrochemistry 解锁单一实体碰撞电化学的新兴催化应用
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-04-08 DOI: 10.1016/j.coelec.2025.101694
Yixiao Wang, Wei Ma
Establishing the link between catalytic activity and the structure of individual entities in an ensemble system can be challenging, as the presented data are often averaged in bulk system. Single-entity collision electrochemistry (SECE) stands out as a powerful tool for investigating the intrinsic catalytic activities of single entities with high sensitivity, high throughput, and fast response. Recent advancements in SECE technology have demonstrated significant potential in various emerging applications, particularly in the rapid screening of catalysts and supports, in situ identification of catalytic activity and assembly structure, and real-time monitoring of dynamic catalytic behaviors. This review summarizes the recent research results, pioneering studies, and future trends in this field. It also discusses the challenges faced by SECE in exploring new application scenarios.
建立催化活性与整体系统中单个实体结构之间的联系可能具有挑战性,因为所提供的数据通常是在整体系统中平均的。单实体碰撞电化学(SECE)具有高灵敏度、高通量和快速响应能力,是研究单实体内在催化活性的有力工具。近年来,see技术的进步在各种新兴应用中显示出巨大的潜力,特别是在催化剂和载体的快速筛选、催化活性和组装结构的原位鉴定以及动态催化行为的实时监测方面。本文综述了该领域的最新研究成果、前沿研究以及未来发展趋势。本文还讨论了sce在探索新的应用场景时所面临的挑战。
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引用次数: 0
Materials advancements in electrochemically mediated carbon capture 电化学碳捕获材料研究进展
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-03-10 DOI: 10.1016/j.coelec.2025.101680
Andong Liu, Yayuan Liu
Electrochemically mediated carbon capture (EMCC) has emerged as a promising technology for mitigating global warming, offering energy efficiency, environmental sustainability, and modular design flexibility. Despite its potential, the widespread adoption of EMCC systems faces challenges. Intrinsic issues, such as parasitic reactions and the limited reversibility of redox-active species, contribute to performance degradation over repeated carbon capture-release cycles. Additionally, scaling up bench-scale EMCC setups for industrial applications demands substantial efforts to overcome critical engineering bottlenecks. This review focuses on EMCC systems based on reversible mechanisms, highlighting recent advancements in material design from molecular to process levels to address the aforementioned challenges. We also provide perspectives on advancing the field through deeper fundamental understanding and the establishment of standardized evaluation protocols, aiming to accelerate the development and deployment of EMCC technologies at scale.
电化学介导的碳捕获(EMCC)已经成为一项有前途的技术,可以缓解全球变暖,提供能源效率,环境可持续性和模块化设计的灵活性。尽管具有潜力,但EMCC系统的广泛采用面临着挑战。固有的问题,如寄生反应和氧化还原活性物质的有限可逆性,在重复的碳捕获-释放循环中导致性能下降。此外,为工业应用扩大试验台规模的EMCC设置需要大量的努力来克服关键的工程瓶颈。这篇综述的重点是基于可逆机制的EMCC系统,强调了从分子到工艺水平的材料设计的最新进展,以解决上述挑战。我们还提供了通过更深入的基础理解和建立标准化评估协议来推进该领域的观点,旨在加速EMCC技术的大规模开发和部署。
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引用次数: 0
Grand canonical view on electrochemical energetics at applied potential in a nutshell 应用电位下电化学能量学的大规范观点概述
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-02-07 DOI: 10.1016/j.coelec.2025.101656
Nicolas G. Hörmann
In this review, I summarize the foundations and motivation of modern grand canonical descriptions of electrified interfaces, which represent a thermodynamically consistent framework for assessing electronically adiabatic energetics and kinetics as a function of the applied electrode potential. The discussion will center around the ubiquitous coupled proton-electron transfer process at electrified metal-water interfaces and highlight the conceptual differences to the classical understanding and viewpoint. Finally, I present a range of important recent insights about the energetics of protons along their (adiabatic) adsorption path.
在这篇综述中,我总结了带电界面的现代大规范描述的基础和动机,它代表了一个热力学一致的框架,用于评估电子绝热热力学和动力学作为外加电极电位的函数。讨论将围绕带电金属-水界面中普遍存在的耦合质子-电子转移过程,并突出与经典理解和观点的概念差异。最后,我提出了一系列重要的最新见解,质子的能量学沿着他们的(绝热)吸附路径。
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引用次数: 0
Prospects of using high entropy oxides as catalysts for the oxygen evolution reaction 高熵氧化物作为析氧反应催化剂的展望
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-02-13 DOI: 10.1016/j.coelec.2025.101670
Katrine Louise Svane
High entropy oxides (HEOs), containing five or more different metal atoms in addition to oxygen, present a large composition space with rich opportunity to optimise the material properties towards specific applications. Here, the potential of HEOs as electrocatalysts for the oxygen evolution reaction is reviewed. Using rutile oxides as an example, it is demonstrated how the balance between different reaction pathways can be modified by alloying, affecting both activity and stability. Furthermore, alloying leads to changes in the electronic structure, including changes in conductivity and charge transfer between elements. For rutile oxides, the charge transfer improves the activity of the less active elements; however, it correlates with a favourable enthalpy of mixing that may hamper the formation of a randomly ordered crystal. Although these insights may be used to narrow the field of candidate materials, the complementary development of experimental and theoretical models capable of identifying relevant compositions remains important.
除了氧之外,高熵氧化物(HEOs)还含有五种或更多不同的金属原子,为优化特定应用的材料性能提供了广阔的组成空间和丰富的机会。本文综述了HEOs作为析氧反应电催化剂的潜力。以金红石氧化物为例,说明了合金化如何改变不同反应途径之间的平衡,从而影响活性和稳定性。此外,合金化导致电子结构的变化,包括电导率和元素之间电荷转移的变化。对于金红石氧化物,电荷转移提高了活性较低元素的活性;然而,它与有利的混合焓有关,这可能妨碍随机有序晶体的形成。虽然这些见解可以用来缩小候选材料的范围,但能够识别相关成分的实验和理论模型的互补发展仍然很重要。
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引用次数: 0
3D-printed thermoplastic sensors for electrochemical biosensing 用于电化学生物传感的3d打印热塑性传感器
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-04-15 DOI: 10.1016/j.coelec.2025.101699
Christos Kokkinos
While the importance of electrochemical sensors in diagnostics is well established—offering rapid and selective biomarker determinations in complex matrices—there is a continuous request for simpler, more cost-effective and sustainable sensor fabrication procedures. 3D-printing technologies, particularly fused deposition modeling (FDM), allow for the digital, rapid, and labor-free fabrication of disposable (bio)sensors, while also enabling the printing of fully integrated, miniaturized plastic devices within points-of-need settings. This review highlights recent trends in the development of 3D-printed thermoplastic (bio)sensors and mini devices that utilize bioelements and artificial biomimetic materials for biomolecules monitoring. Additionally, it provides an overview of the synthesis of tailor-made 3D printable conductive filaments incorporating biofunctional materials, from which ready-to-use sensors are fabricated for direct biosensing.
虽然电化学传感器在诊断中的重要性已经确立,可以在复杂的基质中提供快速和选择性的生物标志物测定,但人们一直要求更简单,更具成本效益和可持续的传感器制造工艺。3d打印技术,特别是熔融沉积建模(FDM),可以实现一次性(生物)传感器的数字化、快速和免人工制造,同时还可以在需要的地方打印完全集成的小型化塑料设备。本文综述了利用生物元素和人工仿生材料进行生物分子监测的3d打印热塑性(生物)传感器和微型设备的最新发展趋势。此外,它还概述了结合生物功能材料的定制3D可打印导电细丝的合成,从中制备了用于直接生物传感的即用型传感器。
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引用次数: 0
Mass transport and heterogeneous electron transfer in high-concentration electrolytes: From conventional to two-dimensional material electrodes 高浓度电解质中的质量传递和非均质电子转移:从常规到二维材料电极
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-02-07 DOI: 10.1016/j.coelec.2025.101667
Shuai Liu , Guilhem Pignol , Corinne Lagrost , Bingwei Mao , Philippe Hapiot , Jiawei Yan
Two-dimensional materials in high-concentration electrolytes have emerged as promising candidates for studying heterogeneous electron transfer kinetics due to their diverse applications in energy storage and conversion. However, the existing theoretical frameworks and experimental techniques often fall short in accurately describing these complex systems. A comprehensive understanding of electron transfer processes at the electrode–electrolyte interface in high-concentration electrolytes is crucial for advancing our knowledge of interfacial electrochemical phenomena and refining theoretical models. This review summarizes recent efforts focusing on the heterogeneous electron transfer at the electrode–high-concentration electrolyte interfaces, particularly ionic liquids and deep eutectic solvents, and we briefly assess the limitations of existing kinetic studies and outline potential avenues with emphasizing the strengthen of scanning electrochemical microscopy in future research in this field.
高浓度电解质中的二维材料由于其在能量存储和转换中的多种应用而成为研究非均相电子转移动力学的有希望的候选者。然而,现有的理论框架和实验技术往往不能准确地描述这些复杂的系统。全面了解高浓度电解质中电极-电解质界面上的电子转移过程对于提高我们对界面电化学现象的认识和完善理论模型至关重要。本文综述了近年来在电极-高浓度电解质界面,特别是离子液体和深共晶溶剂的非均相电子转移方面的研究进展,并简要评估了现有动力学研究的局限性,概述了潜在的研究途径,强调了扫描电化学显微镜在该领域未来研究中的加强作用。
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引用次数: 0
Leaving constraints of single nanopores and designing biomimetic nanopore arrays 摆脱单纳米孔的限制,设计仿生纳米孔阵列
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-02-28 DOI: 10.1016/j.coelec.2025.101677
Ethan Cao , Zuzanna S. Siwy
Single nanopores revolutionized biological and chemical sensing, enabled discovery and understanding of transport phenomena at nanoconfinement as well as preparation of biomimetic systems. Single nanopore research also inspired the development of nanofabrication techniques to achieve structures with fully controlled electrochemical properties. The time became mature to go a step further, namely, to leave the constraints of single nanopores and prepare nanopore arrays whose function is dictated by stimuli responsive properties of constituent nanopores. Such responsive arrays would mimic ionic circuitry of biological systems that rely on different types of channels. The developing field of nanopore arrays offers opportunities to prepare new types of biological sensors, ionic computing systems, including logic gates and mimics of the brain. These directions of research challenge scientists to develop experimental, theoretical, and modeling tools to design complex ionic systems with emergent functionalities.
单纳米孔彻底改变了生物和化学传感,使人们能够发现和理解纳米约束下的输运现象,以及制备仿生系统。单纳米孔的研究也激发了纳米制造技术的发展,以实现具有完全控制的电化学性能的结构。更进一步的时机已经成熟,即摆脱单纳米孔的限制,制备由组成纳米孔的刺激响应特性决定功能的纳米孔阵列。这种反应灵敏的阵列将模仿依赖于不同类型通道的生物系统的离子电路。纳米孔阵列的发展为制备新型生物传感器、离子计算系统,包括逻辑门和模拟大脑提供了机会。这些研究方向要求科学家开发实验、理论和建模工具来设计具有紧急功能的复杂离子系统。
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引用次数: 0
Overcoming dichotomy between surface and bulk of electrode: Conducting polymers 克服电极表面和体积之间的二分法:导电聚合物
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-04-04 DOI: 10.1016/j.coelec.2025.101691
Viktor Gueskine , Penghui Ding , Reverant Crispin , Mikhail Vagin
The surface of the solid-state electrodes constructed from atomic crystals is inherently uncertain due to its chemical unsaturation as its atoms lack the surrounding by the atoms of the same type as in the bulk and its exposure to a different phase. This complicates the evaluation of properties for the high surface area electrodes achieved by porosity. Conducting polymers (CP) are intrinsically conductive molecular solids built from polymeric conjugated molecules without covalent bounds between them. The molecular character of CP implies the translation of identical state from the bulk to the surface of the film without additional surface-induced defects. The absence of covalent bonds between backbones enables the access of external electrolyte to individual chain of CP forming the electrical double layer at the molecular scale. Here we discuss the combination of molecular porosity of CP with its inherent selectivity of ion transport as a special case of porous electrode. We also discuss how the Gibbs phase rule can help in understanding CP electrochemistry.
由原子晶体构成的固态电极的表面由于其化学不饱和而具有固有的不确定性,因为它的原子缺乏与体中相同类型的原子的包围,并且暴露于不同的相。这使得通过孔隙率获得的高表面积电极的性能评估变得复杂。导电聚合物(CP)是由聚合物共轭分子组成的具有内在导电性的分子固体,它们之间没有共价键。CP的分子特性意味着相同的状态从体到膜表面的转换,而没有额外的表面缺陷。骨干间共价键的缺失使得外部电解质能够接触到CP的单个链,从而在分子尺度上形成双电层。作为多孔电极的一种特殊情况,我们讨论了CP的分子孔隙度及其固有的离子传输选择性。我们还讨论了吉布斯相律如何帮助理解CP电化学。
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引用次数: 0
Nanoconfined constructs for electrochemical aptamer-based in vivo biosensing 基于电化学适体体的体内生物传感纳米结构
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-06-01 Epub Date: 2025-04-11 DOI: 10.1016/j.coelec.2025.101695
Grayson F. Huldin , Junming Huang , Kaiyu X. Fu
In the last two decades, electrochemical aptamer-based (EAB) sensors have grown rapidly due to their high sensitivity, good selectivity, excellent biocompatibility, and flexible architectures among the wide range of biosensing platforms. Yet, achieving continuous, long-term, and in vivo monitoring remains challenging due to obstacles like device miniaturization, signal amplification, and sensor stability. To tackle these hurdles, researchers are leveraging nanostructured electrodes, leading to new EAB designs with improved in vivo biosensing performance. This opinion provides a brief overview of the development and latest progress in nanoconfined constructs for EAB in vivo biosensing. We illustrate fundamental sensing principles, the various nanostructures being explored, and their respective advantages. These nanostructured EABs hold promise for applications spanning disease diagnostics, environmental surveillance, and food safety management. Finally, we address the persistent challenges EABs face and discuss potential future directions, offering insights into how these sensors can continue to evolve and foster more effective healthcare technologies.
近二十年来,基于电化学适体(EAB)的传感器以其高灵敏度、良好的选择性、良好的生物相容性和灵活的结构在各种生物传感平台中得到了迅速发展。然而,由于设备小型化、信号放大和传感器稳定性等障碍,实现连续、长期和体内监测仍然具有挑战性。为了克服这些障碍,研究人员正在利用纳米结构电极,从而设计出具有更好的体内生物传感性能的新型EAB。本文简要介绍了用于EAB体内生物传感的纳米结构的发展和最新进展。我们阐述了基本的传感原理,各种正在探索的纳米结构,以及它们各自的优势。这些纳米结构的EABs有望应用于疾病诊断、环境监测和食品安全管理。最后,我们讨论了eab面临的持续挑战,并讨论了潜在的未来方向,提供了这些传感器如何继续发展和促进更有效的医疗保健技术的见解。
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引用次数: 0
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Current Opinion in Electrochemistry
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