Ramasubba Reddy Palem , Ganesh Shimoga , Soo-Hong Lee , Hyun-Seok Kim , Chinna Bathula
{"title":"Recent advances in OLED applications of TADF materials with decreased singlet-triplet energy gaps","authors":"Ramasubba Reddy Palem , Ganesh Shimoga , Soo-Hong Lee , Hyun-Seok Kim , Chinna Bathula","doi":"10.1016/j.ccr.2026.217679","DOIUrl":"10.1016/j.ccr.2026.217679","url":null,"abstract":"<div><div>Thermally activated delayed fluorescence (TADF) has emerged as a paradigm-shifting strategy in the framework of organic light-emitting diode (OLED) technology by enabling almost 100% internal quantum efficiency due to the utilization of both singlet and triplet excitons. This review will critically discuss recent progress on molecular design for the development of TADF materials, their integration into diverse OLED architectures, and the challenges that limit their commercial translation. Key molecular strategies leading to excited-state dynamics control and suppression of efficiency roll-off include donor-acceptor engineering, rigidification, multiple resonance structures, and through-space charge transfer. On the other hand, key optimizations at the device level, includes the host-guest interactions, charge/exciton balance, and stability enhancement. Finally, the focus is shifted towards emerging trends such as room temperature phosphorescence-TADF hybrids, circularly polarized TADF, and AI-guided TADF discovery to guide the next generation of high-performance, stable, and color-pure OLEDs.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217679"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Youn-Jun Lee , Youngju Kim , Joohyung Lee , Chohee Yang , Seunghyun Weon , Jechan Lee , Chang-gu Lee , Eilhann E. Kwon
{"title":"Advanced nanoarchitectonics in hexagonal boron nitride-based functional materials for water treatment","authors":"Youn-Jun Lee , Youngju Kim , Joohyung Lee , Chohee Yang , Seunghyun Weon , Jechan Lee , Chang-gu Lee , Eilhann E. Kwon","doi":"10.1016/j.ccr.2026.217675","DOIUrl":"10.1016/j.ccr.2026.217675","url":null,"abstract":"<div><div>The application of functional materials in wastewater treatment has emerged as an effective strategy for degrading pollutants that cannot be efficiently removed by conventional treatment processes. Among these materials, hexagonal boron nitride (h-BN)-based systems have demonstrated strong potential for the removal of a wide range of heavy metals and emerging organic contaminants. Their superior performance is primarily attributed to their layered hexagonal structure composed of polar B<img>N bonds, which create Lewis acid (B) and Lewis base (N) sites ideal for coordination. To elucidate the functional roles of h-BN-based materials, this review comprehensively examines the physicochemical properties of h-BN arising from variations in its chemical structure and its capacity to act as a heterogeneous coordination platform. The underlying surface complexation and activation mechanisms between h-BN-based materials and various organic and inorganic pollutants are discussed in detail, specifically highlighting the coordination-driven processes for heavy metal sequestration and contaminant degradation. Furthermore, recent progress in the functional applications of h-BN-based materials—including adsorption, membrane separation, photocatalysis, Fenton-like reactions, and electrocatalysis—are summarized. Comparative analyses of h-BN and its structural analog graphene are also presented, emphasizing composite designs that integrate their complementary physicochemical properties to enhance treatment efficiency. Overall, this review establishes a comprehensive framework that links material structure and properties of h-BN, including its interfacial coordination mechanisms with pollutants, and functional performance in water treatment, thereby offering valuable insights into the rational engineering design and practical implementation of h-BN-based systems.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217675"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meng-Qian Shao , Ya-Nan Tan , Yi Shi , Lida Wu , Rong Zhou , Jun-Xia Zhang , Shao-Liang Chen
{"title":"Coordination bond-engineered intelligent hydrogels: A smart strategy for myocardial infarction repair","authors":"Meng-Qian Shao , Ya-Nan Tan , Yi Shi , Lida Wu , Rong Zhou , Jun-Xia Zhang , Shao-Liang Chen","doi":"10.1016/j.ccr.2026.217670","DOIUrl":"10.1016/j.ccr.2026.217670","url":null,"abstract":"<div><div>Myocardial infarction (MI) continues to threaten human health. Despite advances in reperfusion therapies, current strategies fail to regenerate damaged myocardium and effectively restore cardiac function. Hydrogels have emerged as promising biomaterial scaffolds for MI therapy due to their biocompatibility, injectability, and ability to deliver therapeutics. However, the dynamic cardiac microenvironment demands materials with robust mechanical properties, strong tissue adhesion, and sophisticated responsiveness. Through the judicious choice of metal–ligand interaction with defined bond energies, coordination numbers, and exchange kinetics, hydrogel properties such as modulus, toughness, self‑healing capacity, and degradation behavior can be finely tuned. This review highlights the essential role of coordination bond strategies in advancing hydrogel design for MI repair. We systematically discuss how dynamic metal-ligand coordination bonds serve as reversible cross-links, conferring enhanced programmable material properties, which enable hydrogels to withstand cyclic cardiac strain. Furthermore, coordination chemistry enables the development of smart, microenvironment-responsive systems that release drugs or cells in response to pathological cues, such as reactive oxygen species, acidic pH, and elevated enzyme activity. The review also comprehensively covers functional modifications (e.g., conductive networks, therapeutic cargo delivery), and innovative administration routes (injectable hydrogels, patches, sutures), as well as the underlying mechanisms by which these hydrogels promote repair through antioxidant, anti-inflammatory, pro-angiogenic, and anti-fibrotic effects. Finally, we critically assess the translational progress and outline future challenges, emphasizing the potential of coordination-bond-engineered hydrogels to bridge the gap between regenerative medicine and precision cardiology.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217670"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transition metal chalcogenides for advanced batteries: tailor-engineered materials properties and architectures","authors":"Chenrayan Senthil , Ram K. Gupta","doi":"10.1016/j.ccr.2026.217663","DOIUrl":"10.1016/j.ccr.2026.217663","url":null,"abstract":"<div><div>The demand for high-energy-density, safer batteries is increasing in response to evolving technological and societal needs. The conventional anode and cathode chemistries of lithium-ion batteries are approaching their performance limits, underscoring the need for alternative, more robust electrode materials and battery chemistries. Here, this review critically discusses the advancements in the transition metal chalcogenides and their engineered materials as electrodes for Li-ion and next-generation battery chemistries like Na-ion, Li & Na metal, Li-S, Al-ion, Mg-ion, K-ion, and Zn-ion systems. Initially, the fundamental structure, properties, and composition of transition metal chalcogenides is discussed, which strongly lay the foundation to rationally engineer their properties. General synthesis methods followed by engineering strategies to tune the physical, chemical, mechanical, and electrical properties through interlayer, phase, vacancy, dopant, and composites engineering are broadly discussed. Further, the relationship between the engineered transition metal chalcogenides and their charge storage characteristics, and the factors influencing the storage electrochemistry in various batteries, is elaborated. Followingly, the challenges of transition metal chalcogenides as electrodes in diverse batteries and the scope for future improvements are broadly presented. Finally, the discussion on the engineered transition metal chalcogenides' scope towards practicality is thoroughly analyzed.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217663"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adsorptive removal of per- and polyfluoroalkyl substances: From conventional porous materials to metal-organic frameworks and covalent organic frameworks","authors":"Gen Zhao , Siyu Zhou , Jiangnan Li , Sihai Yang","doi":"10.1016/j.ccr.2026.217673","DOIUrl":"10.1016/j.ccr.2026.217673","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) are a widespread class of anthropogenic environmental contaminants that have garnered increasing global concerns due to their potential long-term impacts on ecosystems and human health. The historical use of aqueous film-forming foams (AFFF) containing PFAS has been identified as a major contamination source, leading to widespread pollution of aquatic systems, including surface water and groundwater resources. Adsorption, a conventional water treatment method, provides a cost-effective, operationally simple, and technologically mature approach for PFAS removal. However, conventional adsorbents such as ion-exchange resins, zeolite and activated carbons, often show limited adsorption capacities and/or slow adsorption kinetics. In contrast, emerging porous materials—particularly metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs)—have demonstrated significant improvements in efficiency of PFAS removal, offering new insights for advancing technologies for PFAS remediation. This review systematically evaluates current methodologies and recent advancements in PFAS removal from drinking water and wastewater through adsorption by state-of-the-art porous materials.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217673"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bipyridine-based covalent organic frameworks: structural regulation and photocatalytic applications","authors":"Yong Liu, Wenwen Chi, Yu-Ou He, Wang-Kang Han, Zhi-Guo Gu","doi":"10.1016/j.ccr.2026.217708","DOIUrl":"10.1016/j.ccr.2026.217708","url":null,"abstract":"<div><div>Bipyridine-based covalent organic frameworks (Bpy-COFs) represent an important subclass of crystalline porous polymers, featuring precisely tunable structures, ordered pore channels, and versatile bipyridine units that serve as both photosensitizers and robust metal-chelating sites. These architectures combine the advantages of organic semiconductors (e.g., tunable optoelectronics, broad light absorption) with the precision of coordination chemistry, enabling unprecedented control over the design of active sites and charge transfer pathways for photocatalysis. This review summarizes recent advances in the structural regulation of Bpy-COFs, focusing on two core strategies: “bottom-up” structural pre-design (focusing on isomer engineering, connectivity control, and topology regulation) and “top-down” framework post-modification (including protonation, alkylation, and metalation). Crucially, we critically analyze how these engineering strategies modulate the pore microenvironment, optimize charge transfer pathways, and govern exciton dynamics. Furthermore, we also review the cutting-edge applications of these structurally tailored Bpy-COFs in photocatalysis, including water splitting, CO<sub>2</sub> reduction, nitrogen fixation, and organic transformations. Finally, we outline future directions for rational design, addressing current limitations in synthetic chemistry, macroscopic morphology control, deeper mechanistic understanding, and the integration of data-driven AI strategies for the rational design of next-generation Bpy-COF photocatalysts. This work provides a comprehensive overview of the field and establishes clear structure-property relationships to guide the development of next-generation Bpy-COF photocatalysts with tailored functionalities.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217708"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoxue Jia , Huijing Shen , Xiaoan Li , Hongfei Li , Hui Huang , Peihua Ma , Qin Wang , Shuang Zhou , Yi Li
{"title":"Coordination-driven materials in food systems: advances in packaging, delivery, and safety monitoring","authors":"Xiaoxue Jia , Huijing Shen , Xiaoan Li , Hongfei Li , Hui Huang , Peihua Ma , Qin Wang , Shuang Zhou , Yi Li","doi":"10.1016/j.ccr.2026.217697","DOIUrl":"10.1016/j.ccr.2026.217697","url":null,"abstract":"<div><div>Coordination chemistry offers a powerful molecular framework for the rational design of functional materials in food systems. Built on well-defined metal–ligand interactions, coordination-driven materials (CDMs) enable precise control over structure, stability, reactivity, and responsiveness, thereby translating inorganic chemical principles into practical solutions for food preservation, delivery, safety monitoring, and detoxification. This review provides a chemistry-centered and application-oriented synthesis of recent advances in CDMs for food science, spanning discrete coordination complexes, coordination polymers, metal–organic frameworks, and dynamic supramolecular assemblies. Emphasis is placed on how coordination motifs, metal identity, ligand denticity, and bond dynamics govern key functional properties, including antioxidant and antimicrobial activity, controlled release behavior, selective adsorption, and stimuli-responsive sensing in complex food matrices. Applications in smart and active packaging, nutrient and bioactive delivery, contaminant detection, food detoxification, and direct food-contact interfaces are systematically discussed through the lens of structure–function relationships. Through the unification of diverse material platforms under the common chemical logic of coordination bonds, this review reveals underlying design principles that are often obscured in application-focused studies. Overall, the work highlights coordination chemistry as a foundational discipline for advancing multifunctional and reliable food materials, and provides a coherent framework for bridging inorganic chemistry with food science and technology.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217697"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Progress and Prospect of covalent organic frameworks for uranium(VI) adsorption and conversion from aqueous sources","authors":"Jie Ma , Tianyao Zhang , Fei Yu","doi":"10.1016/j.ccr.2026.217641","DOIUrl":"10.1016/j.ccr.2026.217641","url":null,"abstract":"<div><div>Uranium(VI) extraction and separation hold significant importance for the sustainable development of nuclear energy and environmental remediation. Covalent organic frameworks (COFs), as a novel class of porous crystalline materials characterized by ordered structures, tunable pore networks, and functional designability, exhibit unique advantages in uranium capture. This review systematically summarized the mechanisms of uranium adsorption and photocatalytic reduction on COFs, which including coordination interactions, electrostatic attraction, pore confinement effects, and the separation and utilization of photogenerated electron-hole pairs. Many materials design strategies, such as functional group modification, linker engineering, pore structure regulation, donor-acceptor structure tuning, heterojunction formation, and metal-COF composites are summarized to enhance uranium adsorption capacity, selectivity, and photocatalytic activity. Additionally, the stability, toxicity, environmental compatibility, and macro-device construction of COFs in practical water bodies are evaluated, with prospects outlined for their engineering applications in seawater uranium extraction and radioactive wastewater treatment. Furthermore,current research challenges are highlighted, focusing on material stability, multifunctional integration, green synthesis, and in-depth mechanism elucidation, with insightful perspectives provided for future development.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217641"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146160637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hybrid membrane-camouflaged nanomedicines for precision oncology: rational design, mechanism innovation, and diversified applications","authors":"Shuyao Cai, Zhenghui Chen, Yaoyao Lv, Dongdong Xu, Yang Li, Shouchun Yin","doi":"10.1016/j.ccr.2026.217681","DOIUrl":"10.1016/j.ccr.2026.217681","url":null,"abstract":"<div><div>The clinical translation of cancer nanomedicine is significantly impeded by biological barriers, including rapid immune clearance, the heterogeneous tumor microenvironment (TME), and the limited efficacy of passive targeting. While single-source cell membrane coatings offer partial solutions, they are often constrained by functional incompleteness. The emergence of hybrid membrane-camouflaged nanomedicines (HMCNs), fabricated by fusing membranes from distinct cell types, represents a paradigm shift. This biomimetic strategy ingeniously engineers bio-interfaces that synergistically integrate multifunctional properties, such as prolonged circulation, active targeting, and TME modulation, thereby overcoming the limitations of single-membrane systems. This review systematically deconstructs the rational design principles governing HMCNs, emphasizing source cell selection based on functional complementarity to avoid signal conflict. We further delve into mechanism-driven engineering, exploring advanced fusion methodologies and characterization techniques essential for ensuring structural and functional fidelity. The functional diversification of HMCNs is highlighted through their application in multimodal synergistic therapies (e.g., photothermal-immunotherapy, chemo-gene therapy) and intelligent theranostic platforms. Finally, we critically discuss prevailing challenges in batch consistency and scalable production, and envision future directions, including smart stimulus-responsive systems, AI-aided design, and patient-specific nanoplatforms. By bridging biology, chemistry, and materials science, HMCNs establish a versatile and potent paradigm for next-generation cancer therapeutics.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217681"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High-entropy design principles for sodium-based electrochemical energy storage systems","authors":"S.G. Siddanth , Tiju Thomas","doi":"10.1016/j.ccr.2026.217667","DOIUrl":"10.1016/j.ccr.2026.217667","url":null,"abstract":"<div><div>High-entropy (HE) design has materialized as a transformative paradigm in Na-based electrochemical energy storage, redefining the conventional boundaries of compositional and structural optimization. This review elucidates the fundamental principles governing configurational entropy, lattice disorder, and their impact on phase stability and ion-transport pathways in HE electrodes and solid-state electrolytes. Comparative analysis with traditional analogues reveals that compositional complexity stabilizes metastable frameworks, mitigates Jahn-Teller distortions, and broadens Na<sup>+</sup> diffusion networks via entropy-mediated flattening of the free-energy surface, effectively lowering the energy above the convex hull. A critical examination of synthesis and processing methodologies, from solid-state and wet-chemical routes to high-pressure-field-assisted sintering, underlines the complex interplay of precursor chemistry, configurational homogeneity, and resulting electrochemical behavior. HE strategies across electrodes and interfaces are discussed with emphasis on the synergy of structural resilience, redox reversibility, and interfacial stability. Intrinsic stability aspects, including mechanical, air, and thermal stability, are correlated with compositional tuning. The review further identifies persisting challenges in entropy quantification, synthetic reproducibility, and predictive modeling of ion transport in disordered lattices. Finally, it presents perspectives integrating machine learning, density functional theory, and molecular dynamics within high-throughput frameworks to accelerate discovery and establish design-property correlations in complex chemical spaces.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":"556 ","pages":"Article 217667"},"PeriodicalIF":23.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146138788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}