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非均质显微组织对Ti-15Zr合金阳极氧化行为与生物相容性的影响
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作者 汤菡纯 赵大鹏 +5 位作者 万常俊 李小松 姬晓伟 唐金成 曹远奎 刘咏 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2023年第7期2076-2089,共14页
研究非均质显微组织对钛合金阳极氧化行为与生物相容性的影响。采用粉末冶金及后续热轧和热处理方法制备非均质Ti-15Zr合金,并采用电化学阳极氧化法获得纳米管阵列表面。结果表明,阳极氧化非均质Ti-15Zr上形成由纳米管团簇和显微裂纹构... 研究非均质显微组织对钛合金阳极氧化行为与生物相容性的影响。采用粉末冶金及后续热轧和热处理方法制备非均质Ti-15Zr合金,并采用电化学阳极氧化法获得纳米管阵列表面。结果表明,阳极氧化非均质Ti-15Zr上形成由纳米管团簇和显微裂纹构成的微纳结构表面,这种结构的形成与条纹状的(0001)取向晶粒以及Zr的非均质分布有关。与阳极氧化的电弧熔炼Ti-15Zr对照组相比,阳极氧化非均质Ti-15Zr具有与其相当的超亲水性,且蛋白吸附与细胞增殖效果更好,这主要是由于后者具有多尺度结构表面。 展开更多
关键词 TI-ZR合金 电化学阳极氧化 成分非均匀性 择优取向 生物相容性
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二氧化钛纳米管阵列在大肠杆菌不同生长阶段的抗菌机理 被引量:3
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作者 姬晓伟 刘娉婷 +4 位作者 唐金成 万常俊 阳燕 赵志立 赵大鹏 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2021年第12期3821-3830,共10页
为了明确二氧化钛纳米管(TNT)阵列在早期粘附阶段的抗菌行为,在抛光的商业纯钛(Ti)表面制备两种TNT阵列,并探究TNT阵列和模式菌(大肠杆菌)之间的相互作用机制。结果显示,TNT阵列具有明显的早期抗菌性能,且这种抗菌性能与TNT阵列的表面... 为了明确二氧化钛纳米管(TNT)阵列在早期粘附阶段的抗菌行为,在抛光的商业纯钛(Ti)表面制备两种TNT阵列,并探究TNT阵列和模式菌(大肠杆菌)之间的相互作用机制。结果显示,TNT阵列具有明显的早期抗菌性能,且这种抗菌性能与TNT阵列的表面自由能以及纳米拓扑结构密切相关。TNT阵列的抗菌机理包括:(1)在迟缓期(0~2 h)抑制细菌初始粘附效应;(2)在对数期(4~12 h)抑制增殖和物理杀菌作用;(3)在稳定期(>12 h)可能由于TNT阵列表面细菌的过度生长而导致抗菌性能降低。 展开更多
关键词 二氧化钛纳米管阵列 大肠杆菌 抗菌机制 细菌粘附 细菌增殖
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Global pattern and trend of liver cancer survival: a systematic review of population-based studies 被引量:1
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作者 Yu-Fei jiang Zhuo-Ying Li +4 位作者 xiao-wei ji Qiu-Ming Shen jia-Yi Tuo Hui-Yun Yuan Yong-Bing Xiang 《Hepatoma Research》 2020年第8期78-90,共13页
Aim:To describe the global pattern and trend of liver cancer survival,using data from the population-based studies or cancer registration.Methods:By searching CNKI,Wanfang Data,PubMed,Web of Science,EMBASE and SEER.Al... Aim:To describe the global pattern and trend of liver cancer survival,using data from the population-based studies or cancer registration.Methods:By searching CNKI,Wanfang Data,PubMed,Web of Science,EMBASE and SEER.All population-based survival studies of liver cancer from 1 January 2000 to 30 April 2020 were collected and evaluated by patient gender,time period,and country.The overall or age-standardized five-year relative survival rate was used to describe the pattern and changes in liver cancer survival over the past decades.Results:Globally,the highest age-standardized five-year relative survival rate was observed in Italy(18.0%,2005-2007)and the highest overall five-year relative survival rate was observed in Korea(34.6%,2012-2016),when compared to other countries.The most remarkable increase in overall five-year relative survival rate can be seen in Korea(from 10.7%during 1993-1995 to 34.6%during 2012-2016).In general,worldwide,the five-year relative survival rate of younger patients with liver cancer was higher than old people.For most countries,the five-year relative survival rate of liver cancer was slightly higher in women than in men.In China,the overall five-year relative survival rate of liver cancer in Taiwan was higher than that in other areas,while Cixian of Hebei and Qidong of Jiangsu were lower.Conclusion:Over the past decades,the survival rates of liver cancer have gradually improved,but great variations are also observed globally.Worldwide,younger patients with liver cancer have experienced a better prognosis.Gender disparity in liver cancer survival was not obvious. 展开更多
关键词 Primary liver cancer relative survival rate PROGNOSIS population-based study cancer registration
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