A novel yellow-orange thermally activated delayed fluorescence emitter with an asymmetric, high-orientation and rigid molecular structure is reported. This emitter simultaneously achieves a high photoluminescence quantum yield of 80% and an excellent horizontal dipole ratio of 91%, enabling an OLED with a maximum external quantum efficiency of 26.4%.
{"title":"A high orientation asymmetric TADF molecule with a 91% horizontal dipole ratio for high-efficiency organic light-emitting diodes.","authors":"Yanyan Liu, Xiaoyu Li, Jiaji Yang, Zixian Wang, Shi-Jian Su, Zhenguo Chi, Hai-Tao Feng","doi":"10.1039/d5cc06903c","DOIUrl":"https://doi.org/10.1039/d5cc06903c","url":null,"abstract":"<p><p>A novel yellow-orange thermally activated delayed fluorescence emitter with an asymmetric, high-orientation and rigid molecular structure is reported. This emitter simultaneously achieves a high photoluminescence quantum yield of 80% and an excellent horizontal dipole ratio of 91%, enabling an OLED with a maximum external quantum efficiency of 26.4%.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Three novel trimercarbazole-based gold(Ι) complexes with positional isomeric auxiliary ligands are elaborately designed and developed. Notably, all these gold(Ι)-containing luminogens exhibit interesting aggregation-induced fluorescence-to-phosphorescence conversion and temperature-dependent phosphorescence characteristics. Furthermore, the gold(Ι) complex with ortho-substituted trifluoromethylphenyl auxiliary ligand demonstrates high-contrast hypsochromic phosphorescent mechanochromism.
A fluorochromic Eu-based MOF is developed for highly selective Zr(IV) detection. Leveraging the strong Lewis acidity of Zr(IV), competitive coordination to carboxylate sites induces framework dissociation, disrupts ligand-to-metal energy transfer, and produces a distinct red-to-blue luminescence shift, enabling sensitive and selective sensing with a detection limit of 333 nM.
{"title":"Lewis acidity driven fluorochromism in a lanthanide MOF for highly selective Zr(IV) detection","authors":"Tianxing Wang, Xinhui Dong, Yishan Hou, Shuhan Liu, Yue Yan, Xinyuan Mao, Yongxin Li, Yunyi Cui, Jian Lin","doi":"10.1039/d6cc00139d","DOIUrl":"https://doi.org/10.1039/d6cc00139d","url":null,"abstract":"A fluorochromic Eu-based MOF is developed for highly selective Zr(<small>IV</small>) detection. Leveraging the strong Lewis acidity of Zr(<small>IV</small>), competitive coordination to carboxylate sites induces framework dissociation, disrupts ligand-to-metal energy transfer, and produces a distinct red-to-blue luminescence shift, enabling sensitive and selective sensing with a detection limit of 333 nM.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"1 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stable fluorine and chlorine decorated Thiele-like diradicaloids were synthetized and studied in solution and in thin films. Femtosecond transient absorption measurements showed, for both molecules, charge-separated states in solution, but only short-lived singlets in thin films, with no evidence of twisted or charge-separated intermediates. This suppression of excited-state dynamics reflects the strong intermolecular interactions in the solid state and limits their singlet fission potential, highlighting key design challenges for implementing diradicaloids in solid-state optoelectronic and photovoltaic devices.
{"title":"From Solution to Thin Films: Unravelling Excited-State Behaviour in Halogenated Diradicaloids","authors":"Matteo Bevilacqua, Luca Ciuffarin, Roberto Costantini, Luca Schio, Albano Cossaro, Pasquale Orgiani, Federico Cilento, Claudia Graiff, Cristina Tubaro, Marco Baron, Martina Dell'Angela","doi":"10.1039/d5cc05557a","DOIUrl":"https://doi.org/10.1039/d5cc05557a","url":null,"abstract":"Stable fluorine and chlorine decorated Thiele-like diradicaloids were synthetized and studied in solution and in thin films. Femtosecond transient absorption measurements showed, for both molecules, charge-separated states in solution, but only short-lived singlets in thin films, with no evidence of twisted or charge-separated intermediates. This suppression of excited-state dynamics reflects the strong intermolecular interactions in the solid state and limits their singlet fission potential, highlighting key design challenges for implementing diradicaloids in solid-state optoelectronic and photovoltaic devices.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"220 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrea Nitti, Elisavet Tatsi, Enrico Magnani, Giuseppe Mattioli, Francesco Porcelli, Chiara Botta, Gianmarco Griffini, Dario Pasini
We report on a series of novel π-conjugated organic emitters based on cores possessing different degrees of fluorination flanked by two naphthothiophene units, obtained through a chemically sustainable synthetic approach. The luminophores exhibit aggregation-induced emission (AIE) behavior, good compatibility, homogeneous distribution, and excellent photostability in thin-film LSCs based on a PMMA matrix. It was found that by increasing the degree of fluorination in the core the overall efficiency is preserved, while the photostability, which is extremely important in the context of application in energy efficient buildings, is substantially enhanced.
{"title":"Scalable AIE Emitters for Luminescent Solar Concentrators: the Role of Fluorination","authors":"Andrea Nitti, Elisavet Tatsi, Enrico Magnani, Giuseppe Mattioli, Francesco Porcelli, Chiara Botta, Gianmarco Griffini, Dario Pasini","doi":"10.1039/d5cc06951c","DOIUrl":"https://doi.org/10.1039/d5cc06951c","url":null,"abstract":"We report on a series of novel π-conjugated organic emitters based on cores possessing different degrees of fluorination flanked by two naphthothiophene units, obtained through a chemically sustainable synthetic approach. The luminophores exhibit aggregation-induced emission (AIE) behavior, good compatibility, homogeneous distribution, and excellent photostability in thin-film LSCs based on a PMMA matrix. It was found that by increasing the degree of fluorination in the core the overall efficiency is preserved, while the photostability, which is extremely important in the context of application in energy efficient buildings, is substantially enhanced.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"94 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ying Huang, Suping Chen, Tao Yang, Xijun Xu, Fangkun Li, Jujun Yuan, Sihuan Tang, Yanping Huo, Jun Liu
A covalent triazine framework (CTF) was synthesized via a typical solution synthesis route and applied as an anode for sodium-ion batteries (SIBs). The extended conjugate structure of CTF not only endows structural stability and limited solubility but also improves electronic conductivity and offers numerous active sites. Meanwhile, the CTF displays a Na + storage capacity of 82.6 mAh g -1 after 9000 cycles at 2.0 A g -1 , indicating a superior long-cycling stability. Na3V2(PO4)3//CTF full cell demonstrates a capacity of 57.6 mAh g -1 after 1500 cycles at 1.0 A g -1 .
采用典型的溶液合成方法合成了共价三嗪骨架（CTF），并将其用作钠离子电池（sib）的阳极。CTF的扩展共轭结构不仅具有结构稳定性和有限溶解度，而且提高了电子导电性，并提供了许多活性位点。同时，CTF在2.0 ag -1下循环9000次后的Na +存储容量为82.6 mAh g -1，显示出优异的长周期稳定性。Na3V2(PO4)3//CTF充满电池在1.0 a g -1下循环1500次后的容量为57.6 mAh g -1。
{"title":"Facile construction of covalent triazine framework as anode for ultra-long cycle life sodium-ion batteries","authors":"Ying Huang, Suping Chen, Tao Yang, Xijun Xu, Fangkun Li, Jujun Yuan, Sihuan Tang, Yanping Huo, Jun Liu","doi":"10.1039/d5cc07128c","DOIUrl":"https://doi.org/10.1039/d5cc07128c","url":null,"abstract":"A covalent triazine framework (CTF) was synthesized via a typical solution synthesis route and applied as an anode for sodium-ion batteries (SIBs). The extended conjugate structure of CTF not only endows structural stability and limited solubility but also improves electronic conductivity and offers numerous active sites. Meanwhile, the CTF displays a Na + storage capacity of 82.6 mAh g -1 after 9000 cycles at 2.0 A g -1 , indicating a superior long-cycling stability. Na3V2(PO4)3//CTF full cell demonstrates a capacity of 57.6 mAh g -1 after 1500 cycles at 1.0 A g -1 .","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"90 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A multifunctional cationic electrolyte additive-Li+ was incorporated into the Zn||V-MOF battery, which could enhance the electrolyte’s ionic conductivity and accelerate Zn2+ diffusion rate, facilitate reversible de-intercalation into the V-MOF cathode, suppress zinc dendrite formation, thereby improving the battery's electrochemical performance significantly.
Swagata Patra, Damini Sahu, Leena L Badgujar, P I Pradeepkumar, Ruchi Anand
Resistance to macrolides, lincosamides, and the streptogramin B class of antibiotics is caused by the methylation activity of erythromycin methyltransferases. Here, we encapsulated DNA aptamers inhibiting Erm into specifically designed liposomes to enhance stability, uptake, and delivery properties. This delivery system restores erythromycin sensitivity in resistant Staphylococcus aureus, offering a promising therapeutic platform against MDR bacteria.
{"title":"Liposome-based delivery of DNA aptamers to inhibit erythromycin methyltransferase-mediated antibiotic resistance.","authors":"Swagata Patra, Damini Sahu, Leena L Badgujar, P I Pradeepkumar, Ruchi Anand","doi":"10.1039/d5cc06813d","DOIUrl":"https://doi.org/10.1039/d5cc06813d","url":null,"abstract":"<p><p>Resistance to macrolides, lincosamides, and the streptogramin B class of antibiotics is caused by the methylation activity of erythromycin methyltransferases. Here, we encapsulated DNA aptamers inhibiting Erm into specifically designed liposomes to enhance stability, uptake, and delivery properties. This delivery system restores erythromycin sensitivity in resistant <i>Staphylococcus aureus</i>, offering a promising therapeutic platform against MDR bacteria.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146103038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zelong Liu, Huijian Zhao, Longyun Xu, Ning Jia, Ning Ye, Zhanggui Hu, Conggang Li
Two rare-earth borate UV NLO crystals, Rb4.1Na2.9SrSc2(B5O10)3 (RNSSBO) and Na4Rb3Sr0.8Sc2.2(B5O10)3 (NRSSBO), featured [B5O10] groups and [Sc/SrO6] octahedra were identified via rational elemental substitution. Notably, RNSSBO exhibits a UV cutoff edge at 192 nm, a wide bandgap of 5.49 eV, high thermal stability, and second harmonic generation comparable to KDP.
{"title":"Two Scandium borate UV NLO crystals designed through chemical element substitution","authors":"Zelong Liu, Huijian Zhao, Longyun Xu, Ning Jia, Ning Ye, Zhanggui Hu, Conggang Li","doi":"10.1039/d6cc00244g","DOIUrl":"https://doi.org/10.1039/d6cc00244g","url":null,"abstract":"Two rare-earth borate UV NLO crystals, Rb4.1Na2.9SrSc2(B5O10)3 (RNSSBO) and Na4Rb3Sr0.8Sc2.2(B5O10)3 (NRSSBO), featured [B5O10] groups and [Sc/SrO6] octahedra were identified via rational elemental substitution. Notably, RNSSBO exhibits a UV cutoff edge at 192 nm, a wide bandgap of 5.49 eV, high thermal stability, and second harmonic generation comparable to KDP.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"53 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The nanofibers' interior of electrospun fibremats provides an effective platform for immobilizing sensor proteins for biomolecule detection. We developed fibremats with GINKO2-a fluorescent K⁺ sensor-encapsulated in nanofibres, enabling reversible K⁺ detection even with protease and real-time monitoring of K⁺ concentration changes secreted by chemically stimulated mammalian cells.The development of sensor devices that combine practical usability with high selectivity and sensitivity remains a pressing challenge in advancing artificial intelligence (AI)-based diagnostic technologies. These technologies rely on portable or implantable sensors to determine both the identity and concentration of biomolecules in biological fluids such as sweat, urine, or blood. However, biological fluids contain a wide variety of ions and molecules-from small metabolites to large macromolecules-beyond the specific analytes of interest. Thus, it is essential to selectively detect the target analyte amidst numerous interfering substances and to achieve accurate quantitative analysis. This requirement is particularly critical for implantable sensors and on-site analyses, where the laborious pretreatment steps commonly used in vitro assays, such as removal of interfering components, are impractical. In this context, protein-based sensors-engineered by fusing a signal emitting protein (e.g., a fluorescent protein) with a receptor protein that selectively binds the analytes-offer a rational solution. Such protein sensors have already been applied successfully for real-time, on-site detection of second messengers and metabolites including cAMP, lactate, and
{"title":"Potassium Ion Fluorescent Sensing from Chemically Stimulated Mammalian Cells Using a GINKO2-Encapsulated Sensor Fibremat","authors":"Azumi Sako, Yusuke Nasu, Akiko Obata, Toshihisa Mizuno","doi":"10.1039/d5cc05871f","DOIUrl":"https://doi.org/10.1039/d5cc05871f","url":null,"abstract":"The nanofibers' interior of electrospun fibremats provides an effective platform for immobilizing sensor proteins for biomolecule detection. We developed fibremats with GINKO2-a fluorescent K⁺ sensor-encapsulated in nanofibres, enabling reversible K⁺ detection even with protease and real-time monitoring of K⁺ concentration changes secreted by chemically stimulated mammalian cells.The development of sensor devices that combine practical usability with high selectivity and sensitivity remains a pressing challenge in advancing artificial intelligence (AI)-based diagnostic technologies. These technologies rely on portable or implantable sensors to determine both the identity and concentration of biomolecules in biological fluids such as sweat, urine, or blood. However, biological fluids contain a wide variety of ions and molecules-from small metabolites to large macromolecules-beyond the specific analytes of interest. Thus, it is essential to selectively detect the target analyte amidst numerous interfering substances and to achieve accurate quantitative analysis. This requirement is particularly critical for implantable sensors and on-site analyses, where the laborious pretreatment steps commonly used in vitro assays, such as removal of interfering components, are impractical. In this context, protein-based sensors-engineered by fusing a signal emitting protein (e.g., a fluorescent protein) with a receptor protein that selectively binds the analytes-offer a rational solution. Such protein sensors have already been applied successfully for real-time, on-site detection of second messengers and metabolites including cAMP, lactate, and","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"5 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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