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Recent progress on photoactive nonprecious transition-metal complexes

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Science China Chemistry 2025年第1期 46-95页

作者： Zhong-Liang Gong Hong-Jie Zhang Yan Cheng Jianxun Liu yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong Gong Yong Chen Chang-jiang Yao yuan-yuan Zhu Liang-Jin Xu yu-Wu Zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical Engineering Beijing Institute of Technology College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical engineering Anhui University Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive complexes of nonprecious transition metals, mainly including those in the first-row and partially the second-row of the Periodic table of elements, have received increasing attention in view of their low cost and long-term sustainability. They are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes, including photoactive Zr, V, Cr, Mo, and W complexes, Mn complexes and hybrids, Fe, Co, Ni, and Cu complexes, and Zn and Cd complexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal complexes. In addition, a perspective on the future development in this field is provided at the end of this review.

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Bioorthogonal chemistry based on-demand drug delivery system in cancer therapy

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Frontiers of Chemical Science and engineering 2023年第4期17卷 483-489页

作者： Lan Lin Lai jiang en Ren Gang Liu State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics&Center for Molecular Imaging and Translational Medicine School of Public HealthXiamen UniversityXiamen 361102China

Benefiting from the advantage of taking place in biological environments without interfering with an innate biochemical process,the bioorthogonal reaction that commonly contains the“bond formation”and“bond cleavage”system has been widely used in targeted therapy for a variety of ***,several prominent cases based on the bioorthogonal reaction that tailoring the metabolic glycoengineering tactics to modified cells for cancer immunotherapy,and the innovative tactics for reducing the metal ions’toxic and side effects with microneedle patches will be *** on these applications,the complexities,potential pitfalls,and opportunities of bioorthogonal chemistry in future cancer therapy will be evaluated.

关键词： bioorthogonal reaction cancer therapy metabolic glycoengineering bioorthogonal catalytic patch

Min-max partitioning problem with matroid constraint

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Journal of Zhejiang University-Science A(Applied Physics & engineering) 2008年第10期9卷 1446-1450页

作者： Biao WU en-yu YAO Department of Mathematics Zhejiang University Hangzhou 310027 China

In this paper, we consider the set partitioning problem with matroid constraint, which is a generation of the k-partitioning problem. The objective is to minimize the weight of the heaviest subset. We present an approximation algorithm, which consists of two sub-algorithms-the modified Edmonds' matroid partitioning algorithm and the exchange algorithm, for the problem. An estimation of the worst ratio for the algorithm is given.

关键词： Matroid Matroid partition Worst ratio

The Analysis of a Griffith Crack Embedded in a Thermo-poro-elastic Medium

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Acta Mechanica Solida Sinica 2023年第5期36卷 734-744页

作者： yu Tan Yi-en Wang Chang Liu College of environment and Civil engineering Chengdu University of TechnologyChengdu 610059China School of Architecture and Civil engineering Xihua UniversityChengdu 610039China School of Mechanics and Aerospace engineering Southwest Jiaotong UniversityChengdu 610031China

The analytical solution of a thermo-poro-elastic medium in static state weakened by a Griffith crack with finite width is *** virtue of the Fourier cosine and sine integral transform techniques,the mixed boundary-value problem is formulated as three pairs of dual integral equations,which are solved with the help of the Abel *** addition,the stress intensity factor of mode Ⅰ and the crack surface displacement are presented *** examples are performed to show the distribution of displacement and stress over the thermo-poro-elastic *** results indicate that the thermal load will increase or decrease the crack surface displacement,but has a weak influence on the stress intensity *** present work may benefit future engineering applications.

关键词： Thermo-poro-elastic medium Analytical solution Grifﬁth crack Stress intensity factor

Protective limb remote ischemic post-conditioning against high-intraocular-pressure-induced retinal injury in mice

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International Journal of Ophthalmology(english edition) 2022年第4期15卷 560-567页

作者： Qi-jiang Zhu Lei Zhang Shuang-yu Lyu Zhan-Jun Cui en-She jiang Jun Wang School of Clinical Medicine Henan UniversityKaifeng 475001Henan ProvinceChina Henan International Joint Laboratory for Nuclear Protein Regulation Henan UniversityKaifeng 475001Henan ProvinceChina School of Basic Medical Sciences Henan UniversityKaifeng 475001Henan ProvinceChina Institute of Nursing and Health School of Nursing and HealthHenan UniversityKaifeng 475001Henan ProvinceChina

AIM: To determine whether limb remote ischemic postconditioning(LRIC) protects against high-intraocularpressure(IOP)-induced retinal injur y, and to identify underlying molecular mechanisms. METHODS: In mice, IOP was increased to 110 mm Hg for 50 min and LRIC applied to the unilateral leg for three occlusion cycles(5 min/release). Three animal groups(control, high IOP, and high IOP+LRIC) were arranged in this study. Plasma was collected from LRIC treated mice. Retinal histology, oxidative stress were determined by histological section staining and chemical kit. C/EBP homologous protein(CHOP), and Iba-1 parameters were evaluated by immunofluorescent staining and Western blot. RESULTS: The data showed that LRIC treatment alleviated the retinal histological disorganization and ganglion cell loss induced by high IOP. The CHOP, Iba-1 expression and oxidative stress marker also were inhibited by LRIC treatment. To further explore underlying mechanisms, plasma from LRIC treated animals was intravenously transfused into high-IOP animals. The results showed plasma injection decreased caspase 9 expression and DHE staining signals compared with that in high IOP retinas. CONCLUSION: These data suggest that LRIC treatments exert retinal protective effects against high-IOP *** humoral factors release into the circulation by LRIC may contribute to homeostatic protection by reducing monocyte infiltration and/or microglia activation.

关键词： retina ischemic conditioning high intraocular pressure

X射线透视引导下不同方式建立兔椎间盘退变模型的结果对比

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中国组织工程研究 2025年第5期29卷 995-1002页

作者：丁至立黄杰蒋强李土胜刘江丁宇安徽医科大学海军临床学院北京市100048 安徽医科大学第五临床医学院安徽省合肥市230032 解放军总医院第六医学中心中医医学部骨伤科北京市100048

背景:国内外学者认为新西兰大白兔腰椎解剖形态与人类腰椎更为相似,是理想的模型动物。在X射线引导下采用不同方式建立兔椎间盘退变模型目前尚缺乏系统性比较。目的:基于X射线引导采用针刺法、终板注射法以及改良终板注射法建立兔腰椎... 详细信息

背景:国内外学者认为新西兰大白兔腰椎解剖形态与人类腰椎更为相似,是理想的模型动物。在X射线引导下采用不同方式建立兔椎间盘退变模型目前尚缺乏系统性比较。目的:基于X射线引导采用针刺法、终板注射法以及改良终板注射法建立兔腰椎间盘退变模型,比较3种方法造模的效果。方法:6月龄新西兰大白兔16只随机分为4组,分别为针刺组、终板注射组、改良终板注射组及空白对照组,针刺组对3个连续节段(L2/3、L3/4、L4/5)椎间盘进行针刺造模,终板注射组在3个连续节段终板单点注射50μL无水乙醇,改良终板注射组对3个连续节段椎间盘进行针刺并在相应节段终板4个方位点注射50μL无水乙醇,空白对照组不进行干预。术后2,4,8周进行X射线检查,测量椎间隙高度指数,然后取椎间盘组织进行解剖学观察、病理学检查。结果与结论:①解剖学观察显示,针刺组以纤维环破溃为主要表现,终板注射组主要以髓核退变为主要表现,改良终板注射组以全椎间盘结构紊乱为主要表现;②与空白对照组相比,针刺组术后2周椎间隙高度指数降低最明显,终板注射组术后2,4周椎间隙高度指数降低明显,改良终板注射组术后2,4,8周椎间隙高度指数均显著降低;③病理学检查显示,针刺组纤维环结构出现破损,内层纤维环向内凸入,终板注射组表现为终板裂隙、排列混乱及细胞核丢失,改良终板注射组表现为整体椎间盘结构紊乱,髓核失水皱缩,与破损的纤维环无明显边界。结果表明,针刺法、终板注射法及改良终板注射法均能建立兔椎间盘退变模型,改良终板注射法较单一方法可大幅加快并加重椎间盘退变,可有效缩短实验周期。

关键词：组织工程椎间盘退变纤维环穿刺法终板注射法 X射线新西兰大白兔

Lower bounds and modified LPT algorithm for k-partitioning problems with partition matroid constraint

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Applied Mathematics(A Journal of Chinese Universities) 2008年第1期23卷 1-8页

作者： WU Biao YAO en-yu Dept. of Math. Zhejiang Univ. Hangzhou 310027 China.

In this paper, the k-partitioning problem with partition matroid constraint is considered. LPT algorithm is modified to fit the problem and its worst-ease performance is analyzed. The lower bounds of optimal solution ... 详细信息

关键词： partitioning constrained partition lower bound worst case ratio

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芹菜素纳米胶束的制备工艺优化及质量评价

中南药学 2023年第2期21卷 386-391页

作者：刘雄英周韵秋于恩江典成阳冉梦楠典灵辉广东医科大学药学院广东东莞523808

目的优化芹菜素的Soluplus纳米胶束的制备工艺,并对其进行质量评价。方法采用薄膜分散法制备芹菜素纳米胶束,以粒径、包封率和载药量为评价指标,在单因素试验基础上,采用Box-Behnken设计-响应面法优化芹菜素纳米胶束的制备工艺,并对... 详细信息

目的优化芹菜素的Soluplus纳米胶束的制备工艺,并对其进行质量评价。方法采用薄膜分散法制备芹菜素纳米胶束,以粒径、包封率和载药量为评价指标,在单因素试验基础上,采用Box-Behnken设计-响应面法优化芹菜素纳米胶束的制备工艺,并对其质量进行评价。结果优化后的芹菜素纳米胶束包封率为(93.49±1.28)%,载药量为(4.45±0.06)%,粒径为(62.8±1.1)nm,且至少在28 d内稳定。傅里叶变换红外光谱显示芹菜素与载体材料之间形成了氢键,提高了纳米胶束的稳定性。体外释放结果表明芹菜素纳米胶束有缓释作用。结论优化后的制备工艺稳定可行,所制得的纳米胶束粒径均一,包封率和载药量较高,并具有一定的缓释作用。

关键词：芹菜素 Box-Behnken设计-响应面法体外释放

Surface micro-arrays enhancing electromagnetic interference shielding of polydimethylsiloxane/multiwalled carbon nanotubes nanocomposites

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Nano Research 2025年第1期18卷 508-519页

作者： Ke jiang Zhi Chen Ji yu Chen Zheng Shan Huang Ming Wang Chongqing Key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of Mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China Jieyang Branch of Chemistry and Chemical engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(SC)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSC)and surface cylindrical concave-convex(SCC)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(C-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(MWCNT/PDMS)with different SC structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EMI SE)of the samples can be enhanced by constructing the SC micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the SC-MWCNT/PDMS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EMI)shielding three-dimensional(3D)printing