Results 1 to 10 of about 12,439 (119)

New synthesis process of 2, 7-Dimethyl-2, 4, 6-octatriene-l, 8-dial(2,7-二甲基-2，4，6-辛三烯-1，8-二醛合成新工艺研究)

Zhejiang Daxue xuebao. Lixue ban, 2005
研究了 2，7-二甲基-2，4，6-辛三烯-1，8-二醛并联合成工艺，以4-乙酰氧基-2-甲基-2-丁烯醛为原料，经醛基保护、酯交换、氧化合成3-（5，5-二甲基-1，3-二噁烷-2-基）-2-丁烯醛；采用氯化亚铜、1-氧自由基-2，2，6，6-四甲基-4-羟基-哌啶催化氧化2-（3-羟基-1-甲基-1-丙烯基）-5，5-二甲基-1，3-二噁烷合成3-（5，5-二甲基-1，3-二噁烷-2-基）-2-丁烯醛；2-（3-羟基-1-甲基-1-丙烯基）-5，5-二甲基-1，3-二噁烷经过氯化合成2-（3-氯-1-
YANGZe-hui(杨泽慧), YANHai-ying(闫海英), LIMao-lin(李茂林), XUWei(许薇), WANGJia-rong(王家荣), CHENXin-zhi(陈新志)   +5 more
doaj   +1 more source

Mechanoluminescent Mixed‐Anion Borate Sr2B5O9Cl:Eu for Dynamic Anticounterfeiting

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Mechanoluminescence (ML)—the emission of light in response to mechanical stimuli—offers a direct and visually intuitive route for transducing mechanical information into optical signals. Herein, we report a mixed‐anion strategy to prepare mixed‐anion borate Sr2B5O9Cl:Eu phosphors through a facile, low‐temperature, and ambient‐atmosphere solid ...
Yuhong Han, Junlu Sun, Jiajia Meng, Fuhang Jiao, Yuan Deng, Chong‐Xin Shan, Ying Xiao, Lin Dong   +7 more
wiley   +1 more source

Chloride Coordination‐Engineered Fe–NC Catalyst for Directed Singlet Oxygen Generation Through Peroxymonosulfate Activation

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Heteroatom coordination regulation is an effective strategy to enhance Fenton‐like catalysis of single atom catalysts, yet its impact on the local microenvironment of active sites still requires in‐depth investigation. Herein, Cl2–Fe–NC catalysts with axial Cl coordination are prepared.
Jing‐Hao Yan, Yuan‐Yuan Jiang, Peng Xu, Wen‐Dong Liu, Qi You, Yi‐Zhong Lu, Li Niu   +6 more
wiley   +1 more source

Targeting Inflammaging: A Metformin‐Releasing Titanium Implant Reprograms Senescent Macrophages to Orchestrate Angiogenesis and Osteogenesis

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Bone defect repair in elderly patients is frequently compromised by reduced osteogenic capacity and delayed healing. Chronic inflammation‐driven inflammaging is a critical contributor to this impairment, characterized by dysfunctional autophagy in senescent macrophages (S‐MΦs), excessive reactive oxygen species (ROS) accumulation, and ...
Ruiyue Hang, Ruoyu Di, Yuyu Zhao, Jiahui Wang, Xiaohong Yao, Ruiqiang Hang, Yin Xiao   +6 more
wiley   +1 more source

人乳头瘤病毒(HPV)型别与SOX1和PAX1基因甲基化的相关性研究

Zhongguo shiyan zhenduanxue, 2020
目的探讨HPV型别与SOX1和PAX1基因甲基化的相关性。方法共收集广州中医药大学深圳医院(福田)322例宫颈脱落细胞样本,分别应用导流杂交技术和荧光定量PCR检测HPV型别和甲基化水平,比较SOX1和PAX1基因在不同HPV型别中的甲基化水平,以及感染不同风险HPV型别的患者在不同级别宫颈病变中的甲基化检出率。结果在感染最高风险致癌型别HPV16/18患者中,SOX1和PAX1基因甲基化检出率最高为54.9%;其次是感染非16/18hrHPV患者中SOX1和PAX1基因甲基化检出率为24.0 ...
王文杰, 余敏红, 范世珍, 周新荣, 于波海   +4 more
doaj  

Burrow‐Based Monitoring of Chinese Pangolin (Manis pentadactyla) Reveals Importance of Core Natural Habitat in Hong Kong 中華穿山甲 (Manis pentadactyla)洞穴監測揭示香港內陸郊野地帶的重要性

Integrative Conservation, Volume 5, Issue 2, Page 205-216, June 2026.
Relatively little is known about the distribution or habitat requirements of Hong Kong's population of the Chinese pangolin. Between 2018 and 2021 we searched for pangolin burrows and deployed camera traps on the burrows. We then analyzed habitat suitability at multiple scales to determine the factors that are key in driving pangolin distributions in ...
Anna Goldman, Adam Kai Chi Lee, Sam J. Webster, John Allcock, Taneisha A. Barrett, Catherine W. C. Hai, Tracey‐Leigh Prigge, Qiaosi Li, Wing Chi Tsui, Timothy C. Bonebrake   +9 more
wiley   +1 more source

Designing “Sphere/Network” Hierarchical Dielectric Loss Structure for Efficient Electromagnetic Wave Absorption

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Electromagnetic wave absorption materials require high dielectric loss and excellent impedance matching performance. However, current conventional biomass‐derived electromagnetic wave absorption materials are still limited by low electrical conductivity and a single structure.
Yue Zhang, Xin Yang, Yongwen Yang, DingYuan Ma, Wenjian Wang, Qing Pang, Changyi Zheng, Weiping Ye, Rui Zhao, Weidong Xue   +9 more
wiley   +1 more source

3D Printed High‐Strength Hydrogel for Dual Release of Cu2+ and Ag+ Ions to Enhance Bone Repair and Antibacterial Properties

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Bone restoration is often hindered by the spatiotemporal dysregulation of immune and regenerative signals. Conventional bio‐inert implants, providing only passive support, fail to modulate this microenvironment, leading to infections and poor healing.
Zhizhong Sun, Yifei Wang, Yi Zheng, Minying Li, Longbao Feng, Ziwei Jiang, Hengrui Liu, Rui Guo, Weipeng Sun   +8 more
wiley   +1 more source

膀胱移行细胞癌组织基因的P14ARF、DAPK、RARβ甲基化变异分析

Zhongguo shiyan zhenduanxue, 2012
目的通过检测新鲜冰冻膀胱癌组织中P14ARF、DAPK、RARβ基因的启动子CpG岛基因的甲基化状态,探讨P14ARF、DAPK、RARβ在膀胱癌发生过程中的作用及诊断意义。方法采用甲基化特异性PCR技术检测48例手术切除的膀胱癌组织和其中13例相应癌旁组织标本、17例非肿瘤患者正常膀胱组织中DAPK、RARβ、P14ARF基因的甲基化情况。结果 48例膀胱癌组织中发现P14ARF基因异常甲基化13例（27.0%）,DAPK基因异常甲基化13例（27.0%）;RARβ基因异常甲基化44例（91.6 ...
王凯臣, 孙然, 倪培民, 王亮, 孔祥波, 丛宪玲   +5 more
doaj  

Enhancement of Corrosion and Wear Resistance in Polymeric Coatings via Ce(III)‐Functionalized Ternary ZnAlCe Layered Double Hydroxides Intercalated With EDTMP

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The intricate corrosion environment necessitates the polymeric coating's adaptability to the surroundings. In this work, the integration of rare‐earth Ce(III) ions and ethylene diamine tetramethylene phosphonic acid (EDTMP) in a layered double hydroxide (LDH) material is developed to enhance the corrosion protection and anti‐wear properties of
Yangu Liu, Zhengkai Guang, Yuan Liu, Yawen Fan, Xiaoling Cheng, Xing Wei, Wensheng Zhao, Jiebing He, Wenlin Zhao, Xinxin Sheng   +9 more
wiley   +1 more source