Coordination Chemistry Reviews最新文献

Wells-Dawson polyoxometalates (WD POMs) are an important subgroup within the diverse family of POMs. In the last two decades, there has been remarkable progress in the structure modification and post-functionalization of WD POMs, which has unlocked their enormous potential across various domains, including energy materials, catalysis (photocatalysis, electrocatalysis), functional materials (sensors, optical materials, electrochromic materials, magnetic materials) or biology/medicine (anticancer and antibacterial activities). What makes these systems particularly captivating is their highly adaptable topological structure, combined with the versatile functionalization methods and consequently their precise design and control, which transfers into a wide range of applications. In our comprehensive review, we focus on the exploration of their intricate structural characteristics which play a pivotal role in their functional properties. Moreover, the exciting and promising applications of WD POMs across various areas of science disciplines are highlighted. Our aim is to shed light on the current state of the art, identify emerging trends, and provide insights into the potential future directions of WD POM research, which are still being expanded, especially given the rapid development and continuous progress in the design of novel WD POM subunit functionalities. By doing so, we hope to contribute to a better understanding of these remarkable materials and inspire further innovation in their utilization.

Electrochromic devices (ECDs), which can alter their color hue by external bias, have been considered as the potential entrants for the applications in power-saving smart windows, high-performance dynamic digital displays for future generation, e-paper, wearable electronics, and electrochromic sensing technology owing to their advantages of low power utilization, eye-friendly approaches for displays, simple and adjustable redox chemistry, etc. Starting from the metal oxides to today’s metal plasmonic-based electrochromic materials (ECMs), metal–organic polymers are superior due to their ease of processability, cost-effectiveness, wide and vivid color range, and other EC parameters like switching time, durability and coloration efficiency. Even if the metal–organic hybrid polymers are superior, the EC parameters like durability, color modulation, switching fastness, coloration efficiency, and EC memory must be further improved to commercialize next-generation ECDs. In recent years, with the cooperative efforts of numerous outstanding researchers in the field of metal–organic coordinated hybrid polymers, these technical bottlenecks can be solved in some portion by introducing new kinds of strategies and materials to fabricate ECDs with excellent performances. This review reports exciting state-of-the-art results regarding the structure and EC property relationship of new and unique different dimensional metallo-organic hybrid polymers for ECDs where the electrochromism is associated with the metal center redox. Meanwhile, the review also probes the EC properties of hybrid polymers and correlates them with their structures, mechanisms, features, morphologies, etc. A critical conclusion regarding this field’s remaining challenges and outlook is also proposed. Expectantly, this review can stimulate more researchers to enrich the field of metal–organic coordinated polymer for ECDs to tune the performance of ECDs by improving the key EC parameters for future development.

Metal–organic frameworks (MOFs) have garnered attention in clinical sensing applications due to their tailored structural and electronic properties, which facilitate the development of efficient materials. Urine, as a biomedium, is one of the primary sampling sources for analyzing any disorder in the human body. In this realm, MOFs constructed from organic and inorganic materials render active platforms for urine sample analysis, enhancing the efficacy of novel devices. Herein, we study and summarize the energy transfer, structure, and optical engineering properties of MOFs for sensing platforms. Then, the study presents recent progress on MOF materials as promising candidates for urine sample analysis to detect various biomarkers and ions, among other analytes for real sample analysis, owing to their multifunctional electronic sites with optical characteristics. The discussion presents luminescent MOFs as solutions to challenges in conventional sensors, such as low stability and energy transfer issues, paving the way in sensory areas. The composite MOFs capitalize on luminescence signals and the rapid detection of biomarkers. In this review, MOF material sensor technologies are explored, focusing on strategies to improve device performance and highlighting the role of MOF materials in enhancing the functionality and efficiency of next-generation clinical devices.

Supercapacitors have attracted extensive research attention in the fields of materials science, new devices, and new energy due to their better temperature characteristics, rapid charge-discharge rates, environmental friendliness, and ultra-long cycle life. NiFe₂O₄, as a pseudocapacitive electrode material with a spinel structure, has shown enormous potential as an electrode material for supercapacitors due to its low cost, high abundance, and better electrochemical performance. This paper systematically reviews various preparation methods of NiFe₂O₄ electrode materials, including but not limited to hydrothermal method, solvothermal method, electrospinning technique, sol-gel method, chemical bath deposition (CBD), co-precipitation method, and continuous ion layer adsorption reaction. Strategies for carbon material modification of NiFe₂O₄ electrodes using graphene and its derivatives, carbon nanotubes, porous carbon, and activated carbon are thoroughly discussed. Furthermore, the paper elaborates on structural regulation methods of NiFe₂O₄ and its composite materials, comprehensively analyzing different structural design strategies such as heterojunction structure, core-shell structure, hollow structure, dendritic structure, and layered structure, and their effects on material performance. In particular, a detailed analysis of the pore size distribution and specific surface area (SSA) characteristics of porous materials is conducted, and the specific impact mechanisms of pore size and SSA on electrochemical performance are summarized. The paper also focuses on the latest research progress in preparing asymmetric supercapacitors (ASCs) using NiFe₂O₄ electrode materials and comprehensively discusses the challenges faced by NiFe₂O₄ electrode materials and possible future development directions. Through this series of comprehensive analyses, the aim is to provide a solid theoretical foundation and practical guidance for the application of NiFe₂O₄ electrode materials in the field of supercapacitors.

Cancer ranks among the top causes of mortality on a global scale. The only treatments available for cancer nowadays are surgery, radiation therapy, and the use of cytotoxic congeners, all of which have well-known adverse effects and issues with resistance development. However, there is currently no curative treatment for the majority of kinds of disseminated cancer, necessitating the identification and development of novel active chemotherapy drugs. At present, treatment of a number of cancers is strongly reliant on cisplatin and its congeners, though they have some serious side effects. Ruthenium complex, projected to be a perfect alternative of cisplatin, barring its side effects. Ruthenium complexes are receiving a lot of attention due to their potential as selective antimetastatic drugs with low systemic toxicity. At effective doses, ruthenium compounds cause much less host toxicity compared to cisplatin's. Ruthenium complexes are receiving a lot of attention due to their potential as selective antimetastatic drugs with low systemic toxicity. Scientists have generated a variety of Ru (II) and Ru (III) complexes, which have been demonstrated to have good antitumor and antimetastatic capabilities against animal models. However, they are usage into the clinical setting is restricted by their unfavourable physicochemical properties. Several approaches have been investigated to integrate ruthenium complexes into a range of nanoscale structures, which can overcome these shortcomings. In this article, the latest advancements in Ru (II) and Ru (III)-loaded nanomaterials are emphasized, their novel structural designs and constructions as well as their potential to alleviate cancer are explored in order to highlight their enormous potential as revolutionary anticancer agents.

In the past twenty years, scientists have made significant progress in the development of metal−organic frameworks (MOFs), a special class of materials. To date, over 20,000 MOFs have been prepared, but only around 60 of them are superhydrophobic. These superhydrophobic MOFs are highly sought after because of their unique properties, which include excellent hydrolytic stability, low water affinity, and a highly crystalline framework. As a result, they offer great potential for use in various fields, such as oil-water separation, CO₂ capture in humid conditions, self-cleaning, and catalysis etc. However, the challenge lies in designing and synthesizing superhydrophobic MOFs with a high surface area. In this article, we provide a comprehensive review of superhydrophobic MOFs, highlighting the strategy involved in preparing superhydrophobic MOFs and their various characterization techniques. The subsequent conversation concentrates on the most encouraging superhydrophobic MOFs that have been reported, along with their potential applications. The technical aspects of these MOFs were thoroughly scrutinized to offer a comprehensive comprehension of their properties and potential utilization. The applications of superhydrophobic MOFs in diverse fields are summarized. Additionally, the current state of the art is discussed, and the most promising future developments of superhydrophobic MOFs are highlighted.

Sustainable catalysis has been recognized to be critical in addressing the challenges related to environmental degradation and energy crisis. To this end, novel catalysts and catalytic processes that offer various merits including improved activity, selectivity, recyclability, and low energy requirements are being investigated. Owing to their large specific surface area, tunable pores, and multiple coordination unsaturated metal centers, core-shell nanostructured metal-organic frameworks (MOFs) with encapsulated magnetic nanoparticles (MNPs) have been employed in both homogeneous and heterogeneous catalysis, which are central to many types of industrial production. Apart from synergistic catalysis, magnetic core-shell MOFs (MNPs@MOFs) are expected to possess ease of separation, recyclability, and durability. This review evaluates the recent advances in the rational design of MNPs@MOFs towards magnetically recyclable catalysis. Various synthetic strategies for magnetic core-shell nanostructures with different morphologies and sizes are described, including ship-in-a-bottle, modified one-pot and bottle-around-ship methods. The progress of magnetic core-shell MOFs for improved catalytic performance in the areas of photocatalysis, electrocatalysis, and traditional heterogeneous catalysis is discussed. The distinct advantages of encapsulated magnetic MOFs in magnetically recyclable catalysis compared to conventional nanocatalysts are also briefly summarized. Finally, the review offers insights into the future research directions for magnetic core-shell nanocatalysts based on MOFs, along with the associated perspectives and challenges. Therefore, it is expected that this review would offer valuable insights for the purposeful development of stable and recyclable magnetic core-shell MOFs, facilitating their use in sustainable catalytic applications.

Photoremovable protecting groups (PPGs) have become significant optical molecular tools in modern biomedicine. The unique property of photorelease allows noninvasively manipulating physiological processes with high spatial-temporal resolution. Red/near-infrared (NIR) light activatable is crucial for biomedical applications. Apart from red/NIR light absorbing PPGs, the short-wavelength light absorbing PPGs could also achieve photolysis upon red/NIR light excitation by simply introducing appropriate photosensitizers, displaying significant superiorities in chemical synthesis and photobleaching resistance. Besides, the main molecular scaffolds of PPGs are remained unchanged, avoiding unpredictable photolysis performance degradation. In this review, the mechanisms, design principles and biomedical applications of the sensitized photolysis will be well discussed and summarized, hoping to provide guidelines and references for developing relevant photorelease systems and their biomedical applications.

Radiotherapy is a major tumor treatment approach in clinical, however, the use of high-dose X-rays during therapy inevitably causes damage to nearby healthy tissues, greatly reducing the efficacy and triggering a series of side effects. Advanced nano-radiosensitizers have enhanced tumor sensitivity to X-rays through the physical, chemical, or biological sensitization mechanisms. Nevertheless, they are still hindered by insufficient accumulation in tumors, preventing desired therapeutic effects. With the continuous progress of targeting technology, tumor-targeting delivery systems for nano-radiosensitizers have been developed, which significantly improve the accuracy and efficacy of radiation therapy targeting tumors. In this review article, we summarized the recently emerging strategies for targeting tumors with nano-radiosensitizers and introduced the fundamental principles of physical, chemical, and biological sensitization as well as the potential of targeting technology in radio-sensitization. The mechanisms behind targeted delivery of nano-radiosensitizers to tumors are also discussed from three perspectives: passive targeting, active targeting, and physicochemical targeting. We highlight both challenges and opportunities associated with achieving effective cancer radio-sensitization through targeted approaches, while providing valuable insights for developing novel tumor-targeted radiosensitizer agents and promoting clinical translation.

Self-powered electrochemical sensor (SPES), an analytical sensing device without external power supply, is integrated with the dual functions of power supply and detection performance. Compared with traditional electrochemical sensors, SPES has many potential advantages, such as easy miniaturization, easy portability, wireless transmission, intelligence, and energy self-supply. In the background of the booming Internet of Things and artificial intelligence, the self-powered operation of intelligent sensing equipment is an ideal choice. As a new type of electrochemical sensing device, SPES will receive extensive attention in the fields of electroanalytical chemistry, including wearable sensing devices, portable sensing devices, implantable devices, smart sensing devices, and the like. Herein, an overview of recent developments achieved in SPES based on photoelectrode, including SPES-based on photocatalytic fuel cell, SPES-based on photoelectrochemical, SPES-based on photoassisted zinc-air battery and others, is provided for the application of disease diagnosis, environmental monitoring, food safety, biomedicine. We summarized the preparation of different photoelectrode and the composition of photoelectrochemical system for sensing. The photoelectrode involved in the excellent photoelectric material are particularly emphasized and the related sensing strategies are mentioned. Finally, the challenges, future trends, and prospects associated with SPES based on photoelectrode are also discussed.