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学者姓名：谢莉莉
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Abstract ：
Precise monitoring of biomolecular radiation damage is crucial for understanding X-ray-induced cell injury and improving the accuracy of clinical radiotherapy. We present the design and performance of lanthanide-DNA-origami nanodosimeters for directly visualizing radiation damage at the single-particle level. Lanthanide ions (Tb3+ or Eu3+) coordinated with DNA origami nanosensors enhance the sensitivity of X-ray irradiation. Atomic force microscopy (AFM) revealed morphological changes in Eu3+-sensitized DNA origami upon X-ray irradiation, indicating damage caused by ionization-generated electrons and free radicals. We further demonstrated the practical applicability of Eu3+-DNA-origami integrated chips in precisely monitoring radiation-mediated cancer radiotherapy. Quantitative results showed consistent trends with flow cytometry and histological examination under comparable X-ray irradiation doses, providing an affordable and user-friendly visualization tool for preclinical applications. These findings provide new insights into the impact of heavy metals on radiation-induced biomolecular damage and pave the way for future research in developing nanoscale radiation sensors for precise clinical radiography.
Keyword ：
DNA origami DNA origami Lanthanide sensitizer Lanthanide sensitizer Radiationdamage Radiationdamage Radiotherapy Radiotherapy X-ray sensitivity X-ray sensitivity
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| GB/T 7714 | Chen, Minle , Jiang, Yijuan , Zhang, Yongjie et al. Visualization of Biomolecular Radiation Damage at the Single-Particle Level Using Lanthanide-Sensitized DNA Origami [J]. | NANO LETTERS , 2024 , 24 (37) : 11690-11696 . |
| MLA | Chen, Minle et al. "Visualization of Biomolecular Radiation Damage at the Single-Particle Level Using Lanthanide-Sensitized DNA Origami" . | NANO LETTERS 24 . 37 (2024) : 11690-11696 . |
| APA | Chen, Minle , Jiang, Yijuan , Zhang, Yongjie , Chen, Xiaoling , Xie, Lei , Xie, Lili et al. Visualization of Biomolecular Radiation Damage at the Single-Particle Level Using Lanthanide-Sensitized DNA Origami . | NANO LETTERS , 2024 , 24 (37) , 11690-11696 . |
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A series of sila-annulated phenanthrene imides were synthesized through a three-step synthetic route, which represent a hybrid class of biphenyl-based pi-conjugated molecules incorporating an imide unit and silole. A comprehensive investigation of their structural, photophysical, and electronic properties was studied by experiment and theoretical calculations. Notably, sila-annulated phenanthrene imides with significant aggregation-induced emission (AIE) properties were observed.
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| GB/T 7714 | Wu, Shuai , Shi, Dan , Zhu, Lingyun et al. Synthesis, Characterization, and Properties of Sila-Annulated Phenanthrene Imides [J]. | ORGANIC LETTERS , 2024 , 26 (5) : 1028-1033 . |
| MLA | Wu, Shuai et al. "Synthesis, Characterization, and Properties of Sila-Annulated Phenanthrene Imides" . | ORGANIC LETTERS 26 . 5 (2024) : 1028-1033 . |
| APA | Wu, Shuai , Shi, Dan , Zhu, Lingyun , Chen, Xinyu , Song, Kanghui , Gan, Ziyang et al. Synthesis, Characterization, and Properties of Sila-Annulated Phenanthrene Imides . | ORGANIC LETTERS , 2024 , 26 (5) , 1028-1033 . |
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This study describes the synthesis and potential applications of pentaaryl-substituted pyrroles. We report a Pd-catalyzed approach for their preparation from 4,5-diyne-9-fluorenone (1,7-diyne) and aromatic amines. The target nitrogen-doped corannulenes (CO-hub-Ncor) were investigated computationally to understand their electronic properties. While the conversion of pyrroles to CO-hub-Ncor is underway, the pyrroles themselves hold promise as valuable building blocks for N-doped buckybowls. Additionally, the synthesized pyrrole derivatives exhibit interesting reactivity, including pyrrole oxidation, leading to a ring-opening product, specifically a dicarbonyl compound.
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| GB/T 7714 | Yang, Sha , Zhou, Jie , Gan, Ziyang et al. Synthesis, structure, and reactivity of fully aryl-substituted pyrroles: toward the synthesis of nitrogen-doped buckybowls [J]. | ORGANIC & BIOMOLECULAR CHEMISTRY , 2024 , 23 (4) : 822-826 . |
| MLA | Yang, Sha et al. "Synthesis, structure, and reactivity of fully aryl-substituted pyrroles: toward the synthesis of nitrogen-doped buckybowls" . | ORGANIC & BIOMOLECULAR CHEMISTRY 23 . 4 (2024) : 822-826 . |
| APA | Yang, Sha , Zhou, Jie , Gan, Ziyang , Wu, Shuai , Shi, Dan , Yan, Hong et al. Synthesis, structure, and reactivity of fully aryl-substituted pyrroles: toward the synthesis of nitrogen-doped buckybowls . | ORGANIC & BIOMOLECULAR CHEMISTRY , 2024 , 23 (4) , 822-826 . |
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Open-shell graphene fragments (OGFs) with non-benzenoid topologies are attracting increasing attention due to their potential applications in organic light-emitting diodes (OLEDs) and organic radical conductors. Herein, we report the synthesis of an air-stable fluorenyl radical derivative (AR1) containing a seven-membered ring, achieving thermodynamic stabilization through the fusion of a naphthalene ring around its periphery and anthracene substituent. The half-life times (tau 1/2) of AR1 in air-saturated solution is 71.9 h. The high stability was ascribed to kinetic blocking of reactive sites with high spin densities. The geometric and electronic structures of AR1 were systematically studied by combining various experimental methods and density functional theory (DFT) calculations, which include X-ray crystallographic analysis, electron spin resonance (ESR), cyclic voltammetry, and UV-vis-NIR measurements.
Keyword ：
Azulene Azulene Bis-periazulene Bis-periazulene Fluorenyl radical Fluorenyl radical Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbon Stable radical Stable radical
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| GB/T 7714 | Shi, Dan , Tian, Xiaoqi , Wu, Shuai et al. Synthesis and Properties of Naphtho-fused Fluorenyl Radical [J]. | CHINESE JOURNAL OF CHEMISTRY , 2024 , 43 (5) : 531-535 . |
| MLA | Shi, Dan et al. "Synthesis and Properties of Naphtho-fused Fluorenyl Radical" . | CHINESE JOURNAL OF CHEMISTRY 43 . 5 (2024) : 531-535 . |
| APA | Shi, Dan , Tian, Xiaoqi , Wu, Shuai , Huang, Yanxia , Xu, Jindong , Zhai, Ziang et al. Synthesis and Properties of Naphtho-fused Fluorenyl Radical . | CHINESE JOURNAL OF CHEMISTRY , 2024 , 43 (5) , 531-535 . |
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Herein, we report the development of a FSO2 radical initiated tandem cyclization reaction under visible light photoredox catalysis, which allows for a facile access to FSO2-functionalized oxindoles from N-arylacrylamides. This reaction features mild reaction conditions, readily available starting materials, and SuFExable products. The introduction of sulfonyl fluoride groups into oxindoles could be of interest for related study in the context of discovering new bioactive molecules.
Keyword ：
click chemistry click chemistry FSO (2) radicals FSO (2) radicals oxindoles oxindoles photoredox catalysis photoredox catalysis SuFEx SuFEx
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| GB/T 7714 | Yang, Na , Pei, Guanhua , Li, Hao et al. Synthesis of FSO2-Functionalized Oxindoles via a Radical Fluorosulfonylation/Intramolecular Arylation Cascade [J]. | SYNTHESIS-STUTTGART , 2024 , 57 (05) : 999-1006 . |
| MLA | Yang, Na et al. "Synthesis of FSO2-Functionalized Oxindoles via a Radical Fluorosulfonylation/Intramolecular Arylation Cascade" . | SYNTHESIS-STUTTGART 57 . 05 (2024) : 999-1006 . |
| APA | Yang, Na , Pei, Guanhua , Li, Hao , Han, Junwei , Wang, Peng , Xie, Lili et al. Synthesis of FSO2-Functionalized Oxindoles via a Radical Fluorosulfonylation/Intramolecular Arylation Cascade . | SYNTHESIS-STUTTGART , 2024 , 57 (05) , 999-1006 . |
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The growing demands for X-ray imaging applications impose diverse and stringent requirements on advanced X-ray detectors. Among these, flexibility stands out as the most expected characteristic for next-generation X-ray detectors. Flexible X-ray detectors can spatially conform to nonflat surfaces, substantially improving the imaging resolution, reducing the X-ray exposure dosage, and enabling extended application opportunities that are hardly achievable by conventional rigid flat-panel detectors. Over the past years, indirect- and direct-conversion flexible X-ray detectors have made marvelous achievements. In particular, microscale and nanoscale engineering technologies play a pivotal role in defining the optical, electrical, and mechanical properties of flexible X-ray detectors. In this Perspective, we spotlight recent landmark advancements in flexible X-ray detectors from the aspects of micro/nano engineering strategies, which are broadly categorized into two prevailing modalities: materials-in-substrate and materials-on-substrate. We also discuss existing challenges hindering the development of flexible X-ray detectors, as well as prospective research opportunities to mitigate these issues.
Keyword ：
flexible X-ray detectors flexible X-ray detectors nanoengineering nanoengineering scintillator scintillator semiconductor semiconductor X-ray imaging X-ray imaging
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| GB/T 7714 | Ou, Xiangyu , Hong, Zhongzhu , Wu, Qinxia et al. Micro/Nano Engineering Advances Next-Generation Flexible X-ray Detectors [J]. | ACS NANO , 2024 , 18 (40) : 27126-27137 . |
| MLA | Ou, Xiangyu et al. "Micro/Nano Engineering Advances Next-Generation Flexible X-ray Detectors" . | ACS NANO 18 . 40 (2024) : 27126-27137 . |
| APA | Ou, Xiangyu , Hong, Zhongzhu , Wu, Qinxia , Chen, Xiaofeng , Xie, Lili , Zhang, Zhenzhen et al. Micro/Nano Engineering Advances Next-Generation Flexible X-ray Detectors . | ACS NANO , 2024 , 18 (40) , 27126-27137 . |
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Multicomponent reactions represent a powerful methodfor buildingcomplex molecules from structurally simple starting materials. Herein,we report a novel three-component radical-polar crossover reactioninvolving a tandem addition reaction of two different olefins, whichis initiated by the selective addition of fluorosulfonyl radicalsto alkyl alkenes. This tandem process provides facile and effectiveaccess to multiple functionalized aliphatic sulfonyl fluoride molecules.Further transformation of the products is also demonstrated.
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| GB/T 7714 | Yang, Na , Mao, Chenxi , Zhang, Honghai et al. FSO2 Radical-Initiated Tandem Addition Reaction of Two Different Olefins: A Facile Access to Multifunctional Aliphatic Sulfonyl Fluorides [J]. | ORGANIC LETTERS , 2023 , 25 (24) : 4478-4482 . |
| MLA | Yang, Na et al. "FSO2 Radical-Initiated Tandem Addition Reaction of Two Different Olefins: A Facile Access to Multifunctional Aliphatic Sulfonyl Fluorides" . | ORGANIC LETTERS 25 . 24 (2023) : 4478-4482 . |
| APA | Yang, Na , Mao, Chenxi , Zhang, Honghai , Wang, Peng , Li, Shaojie , Xie, Lili et al. FSO2 Radical-Initiated Tandem Addition Reaction of Two Different Olefins: A Facile Access to Multifunctional Aliphatic Sulfonyl Fluorides . | ORGANIC LETTERS , 2023 , 25 (24) , 4478-4482 . |
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X-ray imaging plays an increasingly crucial role in clinical radiography, industrial inspection, and military applications. However, current X-ray imaging technologies have difficulty in protecting against information leakage caused by brute force attacks via trial-and-error. Here high-confidentiality X-ray imaging encryption by fabricating ultralong radioluminescence memory films composed of lanthanide-activated nanoscintillators (NaLuF4: Gd3+ or Ce3+) with imperceptible purely-ultraviolet (UV) emission is reported. Mechanistic investigations unveil that ultralong X-ray memory is attributed to the long-lived trapping of thermalized charge carriers within Frenkel defect states and subsequent slow release in the form of imperceptible radioluminescence. The encrypted X-ray imaging can be securely stored in the memory film for more than 7 days and optically decoded by perovskite nanocrystal. Importantly, this encryption strategy can protect X-ray imaging information against brute force trial-and-error attacks through the perception of lifetime change in the persistent radioluminescence. It is further demonstrated that the as-fabricated flexible memory film enables achieving of 3D X-ray imaging encryption of curved objects with a high spatial resolution of 20 lp/mm and excellent recyclability. This study provides valuable insights into the fundamental understanding of X-ray-to-UV conversion in nanocrystal lattices and opens up a new avenue toward the development of high-confidential 3D X-ray imaging encryption technologies. Existing X-ray imaging technologies have difficulty in protecting against information leakage from brute force attacks through trial and error. In this study, high-confidential 3D X-ray imaging encryption is achieved by fabricating ultralong imperceptible radioluminescence memory films.image
Keyword ：
information encryption information encryption lanthanide nanoscintillators lanthanide nanoscintillators perovskite nanocrystals perovskite nanocrystals radioluminescence memory radioluminescence memory X-ray imaging X-ray imaging
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| GB/T 7714 | Yang, Zhijian , Zhang, Peng , Chen, Xiaofeng et al. High-Confidentiality X-Ray Imaging Encryption Using Prolonged Imperceptible Radioluminescence Memory Scintillators [J]. | ADVANCED MATERIALS , 2023 , 35 (52) . |
| MLA | Yang, Zhijian et al. "High-Confidentiality X-Ray Imaging Encryption Using Prolonged Imperceptible Radioluminescence Memory Scintillators" . | ADVANCED MATERIALS 35 . 52 (2023) . |
| APA | Yang, Zhijian , Zhang, Peng , Chen, Xiaofeng , Hong, Zhongzhu , Gong, Jianwei , Ou, Xiangyu et al. High-Confidentiality X-Ray Imaging Encryption Using Prolonged Imperceptible Radioluminescence Memory Scintillators . | ADVANCED MATERIALS , 2023 , 35 (52) . |
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X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of high-performance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,high-resolution X-ray imaging detectors.
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| GB/T 7714 | Xiangyu Ou , Xue Chen , Xianning Xu et al. Recent Development in X-Ray Imaging Technology:Future and Challenges [J]. | 研究（英文） , 2022 , 2022 (1) : 380-397 . |
| MLA | Xiangyu Ou et al. "Recent Development in X-Ray Imaging Technology:Future and Challenges" . | 研究（英文） 2022 . 1 (2022) : 380-397 . |
| APA | Xiangyu Ou , Xue Chen , Xianning Xu , Lili Xie , Xiaofeng Chen , Zhongzhu Hong et al. Recent Development in X-Ray Imaging Technology:Future and Challenges . | 研究（英文） , 2022 , 2022 (1) , 380-397 . |
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Covalent organic frameworks (COFs) have widespread applications in many fields. However, successful attempts to construct COFs through the formation of two types of covalent bonds remain limited and challengeable. Here, we report the first example of a COF with olefin and imine dual linkages, which was enabled by orthogonal Schiff base reaction and the Knoevenagel condensation. The obtained COF-FD1 exhibits good stability and high selectivity in the fluorescence sensing of Fe3+ ions. Remarkably, this COF features a relatively rare hollow spherical morphology, and a time-dependent study of the continuous transformation from initial solid spherical to hollow spherical structures reveals an Ostwald ripening mechanism. This research not only demonstrates a new approach for the design and synthesis of COFs with dual linkages but also may bring about the possibility of constructing COFs with hollow structures.
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| GB/T 7714 | Hu, Jingtao , Zhang, Junjie , Lin, Zhangxiang et al. Construction of a Hollow Spherical Covalent Organic Framework with Olefin and Imine Dual Linkages Based on Orthogonal Reactions [J]. | CHEMISTRY OF MATERIALS , 2022 , 34 (11) : 5249-5257 . |
| MLA | Hu, Jingtao et al. "Construction of a Hollow Spherical Covalent Organic Framework with Olefin and Imine Dual Linkages Based on Orthogonal Reactions" . | CHEMISTRY OF MATERIALS 34 . 11 (2022) : 5249-5257 . |
| APA | Hu, Jingtao , Zhang, Junjie , Lin, Zhangxiang , Xie, Lili , Liao, Saihu , Chen, Xiong . Construction of a Hollow Spherical Covalent Organic Framework with Olefin and Imine Dual Linkages Based on Orthogonal Reactions . | CHEMISTRY OF MATERIALS , 2022 , 34 (11) , 5249-5257 . |
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