Michal Pieczykolan, Pierre Alix Dancer, Hannes Rolbieski, Tjadina Wencke Klein, Hubert Piwonski, Bholanath Maity, Oliver T Bruns, Luigi Cavallo, Fabian Kiessling, Magnus Rueping, Srinivas Banala
3,6-dimethylamino fluorenone was functionalized with substituents to achieve an absorption maximum at 1012 nm and emission > 1300 nm. TD-DFT calculations confirmed that the substituent orbitals contribute to narrowing the HOMO-LUMO energy. Imaging with an InGaAs-based SWIR camera and various longpass filters confirmed detection > 1300 nm.
{"title":"Small Organic Fluorophores with SWIR Emission Detectable Beyond 1300 nm","authors":"Michal Pieczykolan, Pierre Alix Dancer, Hannes Rolbieski, Tjadina Wencke Klein, Hubert Piwonski, Bholanath Maity, Oliver T Bruns, Luigi Cavallo, Fabian Kiessling, Magnus Rueping, Srinivas Banala","doi":"10.1039/d4cc05248j","DOIUrl":"https://doi.org/10.1039/d4cc05248j","url":null,"abstract":"3,6-dimethylamino fluorenone was functionalized with substituents to achieve an absorption maximum at 1012 nm and emission > 1300 nm. TD-DFT calculations confirmed that the substituent orbitals contribute to narrowing the HOMO-LUMO energy. Imaging with an InGaAs-based SWIR camera and various longpass filters confirmed detection > 1300 nm.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"5 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435433","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}
Cheng Gong, Shiwen Zhang, Qin Liu, Jia Yi, Wentuan Bi
Organophosphonic acids are highlighted to delaminate cathode materials from Al foil, with an Al leaching rate of only 2.88%. Mechanistic analysis revealed that organophosphonic acids formed a dense passivation layer on the surface of the Al foil, inhibiting the dissolution of Al foil and reducing the interaction between Al foil and binder.
{"title":"Organophosphonic acids-assisted efficient delamination of spent lithium-ion battery cathodes for regeneration","authors":"Cheng Gong, Shiwen Zhang, Qin Liu, Jia Yi, Wentuan Bi","doi":"10.1039/d5cc00086f","DOIUrl":"https://doi.org/10.1039/d5cc00086f","url":null,"abstract":"Organophosphonic acids are highlighted to delaminate cathode materials from Al foil, with an Al leaching rate of only 2.88%. Mechanistic analysis revealed that organophosphonic acids formed a dense passivation layer on the surface of the Al foil, inhibiting the dissolution of Al foil and reducing the interaction between Al foil and binder.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"23 3 Suppl 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435418","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}
Mingzhe Chen, Shaoyu Zhang, Qingqing Mei, Huacong Zhou, Dezhong Yang
Herein, the ionic liquid N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium 1,2,3-triazolide ([MOEN221][Tz]) and ethylene glycol (EG) or pinacol (PIN) are used to form deep eutectic solvents (DESs) for CO2 capture. Surprisingly, the capacity of [MOEN221][Tz]-EG DESs (~0.76 mol CO2/mol DESs) is more than twice that of [MOEN221][Tz]-PIN DESs (~ 0.30 mol CO2/mol DESs) at the same conditions. However, the capacity of [MOEN221][Tz]–PIN DESs (~ 0.30 mol CO2/mol DESs) is much lower than that of [MOEN221][Tz]–EG DESs. The capacity of the ternary DESs [MOEN221][Tz]-PIN-EG is also much higher than that of binary DESs [MOEN221][Tz]-PIN. NMR, FTIR and theoretical calculation results disclose that these unexpected CO2 absorption behaviors may depend on the strength of hydrogen bonds between the anion [Tz]– and alcohols used, which is mainly governed by the steric hindrance of –OH groups. Furthermore, in the ternary DESs, CO2 is attached to the –OH of EG, not the –OH of PIN, revealing that the steric effects can also impact carbon capture mechanisms.
{"title":"CO2 capture by anion-functionalized deep eutectic solvents: the effect of steric hindrance of –OH groups","authors":"Mingzhe Chen, Shaoyu Zhang, Qingqing Mei, Huacong Zhou, Dezhong Yang","doi":"10.1039/d5cc00373c","DOIUrl":"https://doi.org/10.1039/d5cc00373c","url":null,"abstract":"Herein, the ionic liquid N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium 1,2,3-triazolide ([MOEN221][Tz]) and ethylene glycol (EG) or pinacol (PIN) are used to form deep eutectic solvents (DESs) for CO2 capture. Surprisingly, the capacity of [MOEN221][Tz]-EG DESs (~0.76 mol CO2/mol DESs) is more than twice that of [MOEN221][Tz]-PIN DESs (~ 0.30 mol CO2/mol DESs) at the same conditions. However, the capacity of [MOEN221][Tz]–PIN DESs (~ 0.30 mol CO2/mol DESs) is much lower than that of [MOEN221][Tz]–EG DESs. The capacity of the ternary DESs [MOEN221][Tz]-PIN-EG is also much higher than that of binary DESs [MOEN221][Tz]-PIN. NMR, FTIR and theoretical calculation results disclose that these unexpected CO2 absorption behaviors may depend on the strength of hydrogen bonds between the anion [Tz]– and alcohols used, which is mainly governed by the steric hindrance of –OH groups. Furthermore, in the ternary DESs, CO2 is attached to the –OH of EG, not the –OH of PIN, revealing that the steric effects can also impact carbon capture mechanisms.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"13 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435386","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}
Xiaoya Gu, Zhe Ma, Lin Zhou, Na Li, Shijiang Yu, Fu Wang, Ruifang An
Human papillomavirus (HPV) screening is crucial for the diagnosis of cervical cancer. In this study, we have combined photoactivated CRISPR-Cas12a with tube-in-tube structure and recombinase polymerase amplification (RPA) to enable simple, rapid and convenient visualization detection of HPV16, facilitated by blue UV light at 302 nm. It serves as a potential tool for on-site diagnostic use, which could be beneficial in terms of portability and speed.
{"title":"Visual detection of HPV16 using a photoactivatable CRISPR-Cas12 system","authors":"Xiaoya Gu, Zhe Ma, Lin Zhou, Na Li, Shijiang Yu, Fu Wang, Ruifang An","doi":"10.1039/d5cc00369e","DOIUrl":"https://doi.org/10.1039/d5cc00369e","url":null,"abstract":"Human papillomavirus (HPV) screening is crucial for the diagnosis of cervical cancer. In this study, we have combined photoactivated CRISPR-Cas12a with tube-in-tube structure and recombinase polymerase amplification (RPA) to enable simple, rapid and convenient visualization detection of HPV16, facilitated by blue UV light at 302 nm. It serves as a potential tool for on-site diagnostic use, which could be beneficial in terms of portability and speed.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"18 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435417","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}
We report silyl- and germyl-bridged neutral square-planar Ag₄ clusters with very short Ag–Ag distances (2.695 and 2.704 Å), as revealed by single-crystal X-ray diffraction analysis. On the basis of the results of theoretical calculations, we attribute these short distances to attractive Ag–Ag interactions that reduce the optical energy gap, resulting in a red emission reaching wavelengths of up to 700 nm. These wavelengths are among the longest observed for emissions from Ag₄ clusters.
{"title":"Silyl- and Germyl-Bridged Neutral Square-Planar Ag₄ Clusters with Short Ag–Ag Distances Exhibiting Red Emission","authors":"Reon Ishii, Yoshimasa Wada, Yusuke Sunada","doi":"10.1039/d4cc06105e","DOIUrl":"https://doi.org/10.1039/d4cc06105e","url":null,"abstract":"We report silyl- and germyl-bridged neutral square-planar Ag₄ clusters with very short Ag–Ag distances (2.695 and 2.704 Å), as revealed by single-crystal X-ray diffraction analysis. On the basis of the results of theoretical calculations, we attribute these short distances to attractive Ag–Ag interactions that reduce the optical energy gap, resulting in a red emission reaching wavelengths of up to 700 nm. These wavelengths are among the longest observed for emissions from Ag₄ clusters.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"13 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435430","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}
Xintong Zhang, Na Sun, Jie Li, Lianwen He, Xia Li, Jiayi Li, Zhang Xiao, Hui Gu, Fei Lu
Thermoresponsive double-network hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) with lower critical solution temperature (LCST) were developed to prevent the thermal runaway of rechargeable zinc-ion batteries (ZIBs) due to rapid, reversible, and intelligent blocking of the zinc ion transport channels at a specific trigger temperature.
{"title":"Thermoresponsive gel polymer electrolytes for smart rechargeable zinc-ion batteries","authors":"Xintong Zhang, Na Sun, Jie Li, Lianwen He, Xia Li, Jiayi Li, Zhang Xiao, Hui Gu, Fei Lu","doi":"10.1039/d4cc06723a","DOIUrl":"https://doi.org/10.1039/d4cc06723a","url":null,"abstract":"Thermoresponsive double-network hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) with lower critical solution temperature (LCST) were developed to prevent the thermal runaway of rechargeable zinc-ion batteries (ZIBs) due to rapid, reversible, and intelligent blocking of the zinc ion transport channels at a specific trigger temperature.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"64 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435387","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}
Triplet photosensitizers are compounds that demonstrate strong absorption of the excitation light, high intersystem crossing (ISC) efficiency for efficient triplet state generation, and long triplet lifetimes to facilitate subsequent photochemical reactions. Among these, heavy-atom-free triplet photosensitizers have attracted particular attention due to their advantages of long-lived triplet states and low dark toxicity in comparison with those heavy-atom-containing photosensitizers. Owing to the superior photophysical and chemical characteristics, boron dipyrromethene (BODIPY) dyes have been developed as promising heavy-atom-free triplet photosensitizers through specific molecular design strategies. However, many heavy-atom-free BODIPY-based photosensitizers exhibit relatively short excitation wavelengths in the visible-light region, and their ISC efficiencies dropped significantly with the extending of π-conjugation via the Knoevenagel condensation reaction. Recently, ring-fused BODIPY skeleton provides a feasible approach for the design of long-wavelength NIR photosensitizers. This review provides a comprehensive summary of the strategies utilized for the construction of ring-fused BODIPY-based photosensitizers including the installation of a twisted π-conjugation framework, the fusion of thiophene moieties and the formulation of an aggregation-induced ISC process. Meanwhile, some important spectroscopic and photophysical properties of these photosensitizers, along with their related applications, are also described.
{"title":"Ring-fused BODlPY Derived Heavy-Atom-Free Triplet Photosensitizers","authors":"Erhong Hao, Jun Wang, Wanwan Li, Lijuan Jiao","doi":"10.1039/d4cc06350c","DOIUrl":"https://doi.org/10.1039/d4cc06350c","url":null,"abstract":"Triplet photosensitizers are compounds that demonstrate strong absorption of the excitation light, high intersystem crossing (ISC) efficiency for efficient triplet state generation, and long triplet lifetimes to facilitate subsequent photochemical reactions. Among these, heavy-atom-free triplet photosensitizers have attracted particular attention due to their advantages of long-lived triplet states and low dark toxicity in comparison with those heavy-atom-containing photosensitizers. Owing to the superior photophysical and chemical characteristics, boron dipyrromethene (BODIPY) dyes have been developed as promising heavy-atom-free triplet photosensitizers through specific molecular design strategies. However, many heavy-atom-free BODIPY-based photosensitizers exhibit relatively short excitation wavelengths in the visible-light region, and their ISC efficiencies dropped significantly with the extending of π-conjugation via the Knoevenagel condensation reaction. Recently, ring-fused BODIPY skeleton provides a feasible approach for the design of long-wavelength NIR photosensitizers. This review provides a comprehensive summary of the strategies utilized for the construction of ring-fused BODIPY-based photosensitizers including the installation of a twisted π-conjugation framework, the fusion of thiophene moieties and the formulation of an aggregation-induced ISC process. Meanwhile, some important spectroscopic and photophysical properties of these photosensitizers, along with their related applications, are also described.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"31 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435434","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}
Youqing Wang, Lang Zhang, Caiyun Wang, Zhiwei Wang, Yanhong Feng, Xijun Liu
Electrochemical nitrate reduction (NO3−RR) to produce ammonia (NH3) has emerged as a win-win strategy for treating nitrate contaminants, but it subject to the poor activity and sustainability of the electrocatalyst. Herein, a nanocluster oxide iron-manganese loaded nitrogen/oxygen-doped porous carbon catalyst is successfully developed for enhancing NO3−RR. The catalyst enables the NH3 yield rate of 359.87 μmol h−1 cm−2 and a high Faradaic efficiency of 87.73%. Furthermore, the Zn-NO3− battery with NC-Fe1Mn2/NOPC as cathode exbibits a high peak power density of 0.31 mW cm−2 and a NH3 yield of 25.79 μmol h−1 cm−2.
{"title":"Co-engineering of Fe-Mn nanocluster with porous carbon for enhanced electrocatalytic ammonia synthesis","authors":"Youqing Wang, Lang Zhang, Caiyun Wang, Zhiwei Wang, Yanhong Feng, Xijun Liu","doi":"10.1039/d4cc06595f","DOIUrl":"https://doi.org/10.1039/d4cc06595f","url":null,"abstract":"Electrochemical nitrate reduction (NO3−RR) to produce ammonia (NH3) has emerged as a win-win strategy for treating nitrate contaminants, but it subject to the poor activity and sustainability of the electrocatalyst. Herein, a nanocluster oxide iron-manganese loaded nitrogen/oxygen-doped porous carbon catalyst is successfully developed for enhancing NO3−RR. The catalyst enables the NH3 yield rate of 359.87 μmol h−1 cm−2 and a high Faradaic efficiency of 87.73%. Furthermore, the Zn-NO3− battery with NC-Fe1Mn2/NOPC as cathode exbibits a high peak power density of 0.31 mW cm−2 and a NH3 yield of 25.79 μmol h−1 cm−2.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"49 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435384","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}
Yuan-Jun Tong, Qian Liu, Shiyu Peng, Ran Tao, Kexuan Li, Xinying Gong, Dongmei Wang, Zhengjun Gong
Highly selective recognition of UO22+ was performed by a europium metal-organic framework (Eu-PDA). Benefiting from the unique chemical structure of Eu-PDA, energy transfer from PDA to UO22+ was enabled, resulting in the highly up-regulated fluorescence of UO22+. The Eu-PDA probe showed excellent specificity to UO22+ over numerous interfering species, as the intrinsic emissions of UO22+ were triggered.
{"title":"Ultra-Selective Recognition of UO22+ via Arousing its Intrinsic Luminescence by a Precisely Designed Europium Metal-Organic Framework","authors":"Yuan-Jun Tong, Qian Liu, Shiyu Peng, Ran Tao, Kexuan Li, Xinying Gong, Dongmei Wang, Zhengjun Gong","doi":"10.1039/d4cc06538g","DOIUrl":"https://doi.org/10.1039/d4cc06538g","url":null,"abstract":"Highly selective recognition of UO22+ was performed by a europium metal-organic framework (Eu-PDA). Benefiting from the unique chemical structure of Eu-PDA, energy transfer from PDA to UO22+ was enabled, resulting in the highly up-regulated fluorescence of UO22+. The Eu-PDA probe showed excellent specificity to UO22+ over numerous interfering species, as the intrinsic emissions of UO22+ were triggered.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"80 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435447","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}
Huijia Liu, Jiaqi Zhang, Li Liu, Wenjing Li, Jing Yang, Peng Wang
In this study, we developed a fluorescent probe TCF-SULF for sulfatase detection with satisfactory selectivity and sensitivity. After encapsulated by the DSPE-PEG2000, the nanoprobe TCF-SULF NPs can be applied to imaging endogenous sulfatase in MCF-7 cells with low cytotoxicity. Importantly, TCF-SULF NPs was successfully used to monitor sulfatase in vivo.
{"title":"A sensitive fluorescent nanoprobe for sulfatase detection and imaging in living cells and in vivo","authors":"Huijia Liu, Jiaqi Zhang, Li Liu, Wenjing Li, Jing Yang, Peng Wang","doi":"10.1039/d5cc00196j","DOIUrl":"https://doi.org/10.1039/d5cc00196j","url":null,"abstract":"In this study, we developed a fluorescent probe TCF-SULF for sulfatase detection with satisfactory selectivity and sensitivity. After encapsulated by the DSPE-PEG2000, the nanoprobe TCF-SULF NPs can be applied to imaging endogenous sulfatase in MCF-7 cells with low cytotoxicity. Importantly, TCF-SULF NPs was successfully used to monitor sulfatase in vivo.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"64 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435431","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}