Results 31 to 40 of about 158,440 (157)

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

腺病毒介导的BMP-2基因转染骨髓基质干细胞及种植异种骨支架的体外观察

Zhongguo shiyan zhenduanxue, 2004
目的　用人骨形态发生蛋白 2腺病毒表达载体 （Ad BMP 2 ）转染的兔骨髓基质干细胞 （BMSC） ,种植BCB（去抗原牛松质骨 ）支架体外构建组织工程骨。方法　蛋白印迹法检测转染后细胞BMP 2的表达 ,ALP活性检测分析基因转染对细胞分化的影响。然后将转染后细胞接种到BCB支架上 ,扫描电镜观察细胞贴附、生长状况。结果　转染后 ,BMSC表达BMP 2 ,ALP活性明显增高。扫描电镜见转染细胞分布均匀 ,伸展良好。结论　Ad BMP 2可高效转染BM SC ,且促进细胞分化 ...
景元海, 臧虎, 符强, 许文彬, 朱庆三   +4 more
doaj  

Titanium Implant Abutments With Polydopamine‐Mesoporous Cerium Dioxide Coatings for Enhanced Antibacterial, Anti‐Inflammatory, and Soft Tissue Integration Properties

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The poor soft tissue integration around titanium implants creates a microgap that serves as a pathway for pathogen invasion, resulting in infection, inflammation, and the progression of peri‐implantitis. As the implant’s transmucosal component, the abutment determines the degree of peri‐implant soft tissue attachment.
Xuan Li, Min Xing, Haoyue Liu, Kuicai Ye, Xuanyong Liu, Li Ma, Wenhao Qian, Jiajun Qiu   +7 more
wiley   +1 more source

重组腺病毒介导RECK基因在大肠癌细胞中的表达及抑制癌细胞浸润能力的实验研究

Zhongguo shiyan zhenduanxue, 2005
目的　研究重组腺病毒介导RECK基因转染大肠癌细胞后基因的表达情况,并观察转染细胞浸润能力变化。方法　构建了RECK基因的复制缺陷型重组腺病毒载体adRECK ,以adRECK转染大肠癌癌细胞株后,用RT PCR法检测RECK基因在大肠癌中的表达。并用Boyden小室测试转染细胞的侵袭性。结果　RECK基因在转染细胞中有效的表达。被转染细胞浸润能力明显下降。结论　重组腺病毒介导RECK基因能够在大肠癌细胞中有效的表达,转染病毒的大肠癌浸润能力明显下降。
杨德君, 孟子辉, 张纯海, 王巍, 鞠险峰   +4 more
doaj  

Tolerability and Feasibility of Minimally Invasive Canine Skin Sampling: Excellent Tolerability Meets Transcriptomic Challenges

Veterinary Dermatology, Volume 37, Issue 3, Page 375-385, June 2026.
ABSTRACT Background Advances in transcriptomics have driven the demand for minimally invasive, reproducible and high‐yield skin sampling methods, particularly for studying inflammatory skin diseases in companion animals. Hypothesis/Objectives We tested tolerability, feasibility and RNA quantity and quality of three minimally invasive skin sampling ...
Ina Herrmann, Lisa B. Mamo, Allison N. Dickey   +2 more
wiley   +1 more source

Constructing Asymmetric Cu–OV–Mn Sites on MOFs‐Derived Cu‐MnOx Microspheres With Abundant Oxygen Vacancies for Enhanced Photothermal VOC Degradation

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT With the growing severity of volatile organic compounds (VOCs) pollution, metal‐organic frameworks (MOFs)‐derived materials offer a promising solution through efficient photothermal catalysis. In this paper, M‐MnOx (M = Cu, Ni, Co, Fe) catalysts derived from manganese‐based MOFs were successfully prepared by the sacrificial template method and
Yizhong Liao, Jingyan Xi, Zichao Chen, Yinming Fan, Yanan Zhang, Xiaobin Zhou, Zongqiang Zhu, Qinglin Xie, Shengpeng Mo, Jianjun Chen, Junhua Li   +10 more
wiley   +1 more source

煤烟型复合污染物相互作用与转移过程及其特点

, 1998
粉尘，ＳＯ２，ＮＯｘ等的煤烟型复合污染是我国尤其是南方污染区的主要类型。本文根据实验观测，详细分析了主要污染物间的相互作用过程及其特点，复合污染物从产生 ...
包维楷
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超声介导微泡破裂法对VEGF体外转染成纤维细胞蛋白表达影响的实验研究

Zhongguo shiyan zhenduanxue, 2008
目的利用ELISA检测法观察诊断剂量的超声介导微泡破裂法对VEGF体外转染成纤维细胞蛋白表达的影响并探讨该种转染方法的最佳超声条件。方法实验分组:单纯VEGF质粒转染组;超声+造影剂微泡+VEGF质粒转染组,该组并根据MI（机械指数）分为三组1.2;1.4;1.6。转染后利用ELISA法对各组成纤维细胞的VEGF蛋白表达进行定量检测;利用锥虫蓝染色法比较不同超声强度对细胞活性的影响。结果VEGF质粒转染成纤维细胞后,24h开始即有较高水平的VEGF蛋白表达,表达量于48 h7、2 h呈下降趋势;超声 ...
赵丽荣, 王小丛, 杨松青, 刘彬
doaj  

Mechanism of Selective Arsenic Purification via Reductive Vacuum Sublimation: From Oxygenated Crude Arsenic to High‐Purity Arsenic

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Arsenic presents a critical duality as both a hazardous environmental pollutant and an indispensable material for advanced semiconductor technologies. This study proposes an integrated reductive vacuum sublimation strategy, assisted by carbon and lead additives, to purify crude arsenic containing high oxygen (7.4%) and antimony (1326 mg kg−1).
Hongrui Xiang, Zhihui Yang, Meiqing Shi, Xiaoyun Liu, Feiping Zhao, Qingwei Wang, Liyuan Chai   +6 more
wiley   +1 more source

中国区域间隐含污染转移研究

, 2013
随着世界经济一体化程度不断加深,国际贸易中的隐含资源和隐含污染受到广泛关注,但目前对中国区域间隐含污染转移的研究较为欠缺。本文首先从理论层面对隐含污染转移现象进行剖析,从地理学角度探讨了污染转移的模式;然后,基于区域间投入产出表,构建区域间隐含污染转移的评估模型;选取SO2、COD、固体废弃物及重金属四种典型工业污染物,评估2007年中国各区域本地最终使用中的隐含污染,及区域间隐含污染转移量,揭示我国隐含污染转移的空间特征。研究发现中国整体上是隐含污染的输出地区 ...
唐志鹏, 李方一, 刘卫东
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