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Nanograting-Based Dynamic Structural Colors Using Heterogeneous Materials

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NANO-MICRO LETTERS 2025年第1期17卷 1-14页

作者： wang, Jingang yu, Haibo Zheng, Jianchen Zhang, yuzhao Guo, Hongji Qiu, Ye wang, Xiaoduo yang, Yongliang Liu, Lianqing Chinese Acad Sci Shenyang Inst Automat State Key Lab Robot Shenyang 110016 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

A 2.5-dimensional dynamic structural color based on nanogratings of heterogeneous materials was proposed by interweaving a pH-responsive hydrogel with IP-L *** nanogrid structures exhibit brilliant tuneable structural color, high sensitivity, and ultrafast recovery speeds in response to *** 4D printing-based grayscale design approach was proposed for the patterned encoding and array printing of dynamic structural colors, promoting their application in patterned printing, information encryption, and microfluidic chip sensing. Dynamic structural colors can change in response to different environmental stimuli. This ability remains effective even when the size of the species responsible for the structural color is reduced to a few micrometers, providing a promising sensing mechanism for solving microenvironmental sensing problems in micro-robotics and microfluidics. However, the lack of dynamic structural colors that can encode rapidly, easily integrate, and accurately reflect changes in physical quantities hinders their use in microscale sensing applications. Herein, we present a 2.5-dimensional dynamic structural color based on nanogratings of heterogeneous materials, which were obtained by interweaving a pH-responsive hydrogel with an IP-L photoresist. Transverse gratings printed with pH-responsive hydrogels elongated the period of longitudinal grating in the swollen state, resulting in pH-tuned structural colors at a 45 degrees incidence. Moreover, the patterned encoding and array printing of dynamic structural colors were achieved using grayscale stripe images to accurately encode the periods and heights of the nanogrid structures. Overall, dynamic structural color networks exhibit promising potential for applications in information encryption and in situ sensing for microfluidic chips.

关键词： Dynamic structural colors Four-dimensional printing pH-responsive Nanogrid Heterogeneous materials

Integration of Electrical Properties and Polarization Loss Modulation on Atomic Fe–N‑RGO for Boosting Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第2期17卷 517-532页

作者： Kaili Zhang yuefeng yan Zhen wang Guansheng Ma Dechang Jia Xiaoxiao Huang yu Zhou State Key Laboratory of Precision Welding&Joining of Materials and Structures Harbin Institute of TechnologyHarbin 150001People’s Republic of China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China MIIT Key Laboratory of Advanced Structural‑Functional Integration Materials&Green Manufacturing Technology Harbin Institute of TechnologyHarbin 150001People’s Republic of China

Developing effective strategies to regulate graphene’s conduction loss and polarization has become a key to expanding its application in the electromagnetic wave absorption(EMWA)*** on the unique energy band structure of graphene,regulating its bandgap and electrical properties by introducing heteroatoms is considered a feasible ***,metal-nitrogen doping reduced graphene oxide(M–N-RGO)was prepared by embedding a series of single metal atoms M–N_(4) sites(M=Mn,Fe,Co,Ni,Cu,Zn,Nb,Cd,and Sn)in RGO using an N-coordination atom-assisted *** composites had adjustable conductivity and polarization to optimize dielectric loss and impedance matching for efficient EMWA *** results showed that the minimum reflection loss(RL_(min))of Fe–N-RGO reaches−74.05 dB(2.0 mm)and the maximum effective absorption bandwidth(EAB_(max))is 7.05 GHz(1.89 mm)even with a low filler loading of only 1 wt%.Combined with X-ray absorption spectra(XAFS),atomic force microscopy,and density functional theory calculation analysis,the Fe–N_(4) can be used as the polarization center to increase dipole polarization,interface polarization and defect-induced polarization due to d-p orbital hybridization and structural ***,electron migration within the Fe further leads to conduction loss,thereby synergistically promoting energy *** study demonstrates the effectiveness of metal-nitrogen doping in regulating the graphene′s dielectric properties,which provides an important basis for further investigation of the loss mechanism.

关键词： Electromagnetic wave absorption Fe-N-RGO Dipole polarization Conduction loss Impedance matching

某院2011—2015年医院感染病原菌分布及耐药性

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中国感染控制杂志 2017年第1期16卷 66-69页

作者：李显彬李春香孟令玉徐亚茹王彧齐齐哈尔医学院附属第一医院黑龙江齐齐哈尔161041

目的了解某院医院感染病原菌的分布及耐药性特点,为指导临床合理使用抗菌药物和控制医院感染提供理论依据。方法选取2011—2015年该院医院感染病例,统计分析其主要病原菌及耐药性。结果共分离病原菌852株,其中革兰阴性菌458株(53.75%),... 详细信息

目的了解某院医院感染病原菌的分布及耐药性特点,为指导临床合理使用抗菌药物和控制医院感染提供理论依据。方法选取2011—2015年该院医院感染病例,统计分析其主要病原菌及耐药性。结果共分离病原菌852株,其中革兰阴性菌458株(53.75%),真菌259株(30.40%),革兰阳性菌135株(15.85%),居前4位的病原菌分别是肺炎克雷伯菌(159株,18.66%)、白假丝酵母菌(119株,13.97%)、鲍曼不动杆菌(81株,9.51%)、大肠埃希菌(74株,8.69%)。革兰阴性菌从2012年的47.41%上升至2015年的61.57%,真菌从2011年的24.78%上升至2014年的34.45%,2015年为27.95%,革兰阳性菌则从2011年的26.55%下降至2015年的10.48%。大肠埃希菌、肺炎克雷伯菌对亚胺培南、美罗培南耐药率为8.11%~12.58%;鲍曼不动杆菌对头孢哌酮/舒巴坦耐药率最低(23.46%),白假丝酵母菌对氟康唑的耐药率达59.66%,未发现耐万古霉素的革兰阳性菌。结论医院感染的主要病原菌大多为条件致病菌,但耐药情况严峻,在不同年份其病原菌种类和构成均有所区别,需加大力度提高送检率,加强细菌耐药性监测,合理应用抗菌药物。

关键词：医院感染病原菌微生物,抗药性耐药性合理用药

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang Liang yu-Gang Ma Xin-Li Sheng Qun wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

Small modifications of endo-functionalized cavities lead to large changes in molecular interaction in water

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Science China Chemistry 2025年第1期 369-376页

作者： Song-Meng wang Hao Nian yan-Fang wang Li-Shuo Zheng yu-Tao Zheng Yi-Wei Dong Liping Huang Xiaoping wang Wei Jiang Liu-Pan yang Department of Chemistry Southern University of Science and Technology School of Chemistry and Pharmaceutical Sciences State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesGuangxi Normal University School of Pharmaceutical Science Hengyang Medical School University of South China

Studying molecular recognition in aqueous environments is crucial for understanding biological processes. Herein, we present a series of N-doped endo-functionalized anthracene-based cavities by introducing inward-directed pyridine units. The subtle modifications can significantly affect the binding properties of these receptors, which is similar to the mutations in biological systems. Combining theoretical calculations and molecular recognition experiments demonstrated that these “mutations” have an impact on the hydrophobicity and charge distribution of the hosts, consequently significantly influencing molecular *** is crucial for understanding the intricate mechanisms of molecular-level interactions in biological receptors.

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缺血性脑卒中复发模型的构建及其前瞻性预测分析

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中华老年心脑血管病杂志 2017年第7期19卷 685-688页

作者：安雅臣王玉浔程焱华北理工大学附属医院神经内科唐山063000 天津医科大学总医院华北理工大学附属医院肾内科唐山063000 天津医科大学总医院神经内科

目的构建缺血性脑卒中3年复发的Cox比例风险回归模型及个体预后指数(PI)方程,并通过前瞻性应用该模型验证其外在真实性。方法前瞻性收集2013年1月1日~12月31日华北理工大学附属医院神经内科确诊的连续性初发缺血性脑卒中患者1058例,随... 详细信息

目的构建缺血性脑卒中3年复发的Cox比例风险回归模型及个体预后指数(PI)方程,并通过前瞻性应用该模型验证其外在真实性。方法前瞻性收集2013年1月1日~12月31日华北理工大学附属医院神经内科确诊的连续性初发缺血性脑卒中患者1058例,随访复发情况,于2015年12月31日截止随访,构建缺血性脑卒中3年复发的Cox比例风险回归模型及PI方程。前瞻性收集2016年1月1日~12月31日连续性初发缺血性脑卒中患者616例,随访1年,应用已建立的PI方程验证其外在真实性。结果 2013年入选者随访期间,共184例患者复发,经Cox比例风险回归模型分析显示,年龄、心脏病、高血压、糖尿病和TC是复发的独立危险因素,并建立PI方程。2016年入选者随访期间,复发114例,验证PI方程预测复发的敏感性为71.9%,特异性为76.9%,准确性为80.0%。结论建立的预测3年内复发的PI方程效果较好,可能有助于缺血性脑卒中复发的预测。

关键词：卒中复发心脏病高血压糖尿病危险因素

FUBP3 mediates the amyloid-β-induced neuronal NLRP3 expression

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Neural Regeneration Research 2025年第7期20卷 2068-2083页

作者： Jing yao yuan Li Xi Liu Wenping Liang yu Li Liyong Wu Zhe wang Weihong Song The National Clinical Research Center for Geriatric Disease Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Neurology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina Department of Neurosurgery Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Pediatrics The Second Affiliated Hospital and Yuying Children’s HospitalKey Laboratory of Alzheimer’s Disease of Zhejiang ProvinceInstitute of AgingWenzhou Medical UniversityWenzhouZhejiang ProvinceChina Oujiang Laboratory(Zhejiang Laboratory for Regenerative Medicine Visionand Brain Health)WenzhouZhejiang ProvinceChina

Alzheimer's disease is characterized by deposition of amyloid-β,which forms extracellular neuritic plaques,and accumulation of hyperphosphorylated tau,which aggregates to form intraneuronal neurofibrillary tangles,in the *** NLRP3 inflammasome may play a role in the transition from amyloid-βdeposition to tau phosphorylation and *** NLRP3 is primarily found in brain microglia,and tau is predominantly located in neurons,it has been suggested that NLRP3 expressed by microglia indirectly triggers tau phosphorylation by upregulating the expression of pro-inflammatory ***,we found that neurons also express NLRP3 in vitro and in vivo,and that neuronal NLRP3 regulates tau *** biochemical methods,we mapped the minimal NLRP3 promoter and identified FUBP3 as a transcription factor regulating NLRP3 expression in *** primary neurons and the neuroblastoma cell line Neuro2A,FUBP3 is required for endogenous NLRP3 expression and tau phosphorylation only when amyloid-βis *** the brains of aged wild-type mice and a mouse model of Alzheimer's disease,FUBP3 expression was markedly increased in cortical *** analysis suggested that FUBP3 plays a role in neuron-mediated immune *** also found that FUBP3 trimmed the 5′end of DNA fragments that it bound,implying that FUBP3 functions in stress-induced *** findings suggest that neuronal NLRP3 may be more directly involved in the amyloid-β-to–phospho-tau transition than microglial NLRP3,and that amyloid-βfundamentally alters the regulatory mechanism of NLRP3 expression in *** that FUBP3 was only expressed at low levels in young wild-type mice and was strongly upregulated in the brains of aged mice and Alzheimer's disease mice,FUBP3 could be a safe therapeutic target for preventing Alzheimer's disease progression.

关键词： 5′end trimming Alzheimer's disease amyloid-beta amyloid-β-dependent transcription FUBP3 inflammasome inflammation neuron NLRP3 tau transcription factor

A novel flexible nerve guidance conduit promotes nerve regeneration while providing excellent mechanical properties

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Neural Regeneration Research 2025年第7期20卷 2084-2094页

作者： Tong Li Quhan Cheng Jingai Zhang Boxin Liu yu Shi Haoxue wang Lijie Huang Su Zhang Ruixin Zhang Song wang Guangxu Lu Peifu Tang Zhongyang Liu Kai wang Department of Orthopedics the Fourth Medical Center of Chinese PLA General HospitalBeijingChina Department of Training and Sports Medicine Characteristic Medical Center of Chinese People’s Armed Police ForceTianjinChina Medical School of Chinese PLA BeijingChina Key Laboratory of Bioactive Materials for the Ministry of Education College of Life SciencesNankai UniversityTianjinChina Department of Orthopedics Tianjin HospitalTianjinChina Department of Rehabilitation Medicine Er Quan Hospital of PAPWuxiJiangsu ProvinceChina

Autografting is the gold standard for surgical repair of nerve defects>5 mm in length;however,autografting is associated with potential complications at the nerve donor *** an alternative,nerve guidance conduits may be *** ideal conduit should be flexible,resistant to kinks and lumen collapse,and provide physical cues to guide nerve *** designed a novel flexible conduit using electrospinning technology to create fibers on the innermost surface of the nerve guidance conduit and employed melt spinning to align ***,we prepared disordered electrospun fibers outside the aligned fibers and helical melt-spun fibers on the outer wall of the electrospun fiber *** presence of aligned fibers on the inner surface can promote the extension of nerve cells along the *** helical melt-spun fibers on the outer surface can enhance resistance to kinking and compression and provide *** novel conduit promoted nerve regeneration and functional recovery in a rat sciatic nerve defect model,suggesting that it has potential for clinical use in human nerve injuries.

关键词： aligned fibers anti-kinking helical fibers nerve guidance conduit nerve regeneration peripheral nerve injury topological guidance

黔西北炼锌矿区土壤重金属形态分析及风险评价

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生态与农村环境学报 2017年第2期33卷 142-149页

作者：冯艳红郑丽萍应蓉蓉张亚林玉锁王国庆环境保护部南京环境科学研究所/国家环境保护土壤环境管理与污染控制重点实验室江苏南京210042

为研究黔西北炼锌矿区土壤和矿渣中重金属总量及形态分布特征,采用Tessier五步连续提取法和风险评价编码法(RAC)探讨其污染程度。结果表明,除Cr和Ni外,其他各重金属平均值均超出贵州省的土壤背景值,其中Pb、Zn、Cd污染严重。形态分析表... 详细信息

为研究黔西北炼锌矿区土壤和矿渣中重金属总量及形态分布特征,采用Tessier五步连续提取法和风险评价编码法(RAC)探讨其污染程度。结果表明,除Cr和Ni外,其他各重金属平均值均超出贵州省的土壤背景值,其中Pb、Zn、Cd污染严重。形态分析表明,土壤和矿渣样品中Pb、Zn、Mn以残渣态(分别占其总量的45.91%、55.11%、42.71%)和铁锰结合态(分别占其总量的33.33%、28.26%、41.78%)为主;Cd的可交换态和碳酸盐结合态之和占总量的30.63%;Cu的有机结合态为65.11%,其次是残渣态30.79%;Cr和As则以残渣态为主要形态,平均占比均超过90%。RAC评价结果表明,矿区周边土壤中Cd元素具有极高的潜在生态风险,其他重金属潜在生态风险水平较低。

关键词：炼锌矿区镉(Cd) 重金属形态风险评价