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DCD角膜移植术后角膜内皮细胞与排斥反应的相关性分析 被引量:1
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作者 曹倩 李兰 +7 位作者 李云川 李勇 梁毓琳 董洁 徐晓莉 邹莹 范雅馨 孔令宇 《国际眼科杂志》 CAS 北大核心 2018年第1期147-149,共3页
目的:探讨心脏死亡供体器官捐献(donation after cardiac death,DCD)来源角膜植片术后排斥反应与角膜内皮细胞的相关性。方法:用角膜内皮显微镜对心脏死亡供体来源角膜植片行穿透性角膜移植术后发生排斥反应的28例28眼角膜植片分别于术... 目的:探讨心脏死亡供体器官捐献(donation after cardiac death,DCD)来源角膜植片术后排斥反应与角膜内皮细胞的相关性。方法:用角膜内皮显微镜对心脏死亡供体来源角膜植片行穿透性角膜移植术后发生排斥反应的28例28眼角膜植片分别于术后<1、2~3、4~6、7~12mo行角膜内皮镜检查。结果:28例患者术后<1、2~3、4~6、7~12mo的角膜内皮细胞变异系数分别为38.23%、49.56%、57.18%、65.04%;角膜内皮细胞密度分别为2071.15±311.47、1771.33±348.18、1626.59±353.92、1553.14±307.31个/mm2;角膜内皮细胞变异系数与排斥反应呈正相关关系(r=0.95,P<0.05);术后角膜内皮细胞密度与排斥反应呈负相关关系(r=-0.93,P<0.05)。结论:DCD穿透性角膜移植术后发生排斥反应时有角膜内皮细胞变异系数逐步增高,角膜内皮细胞密度逐步降低的趋势;角膜内皮细胞变异系数、角膜内皮细胞密度可作为早期检测术后排斥反应的指标。 展开更多
关键词 心脏死亡供体器官捐献 角膜移植 排斥反应 角膜内皮细胞密度 角膜内皮细胞变异率
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A highly efficient pathway to recover gold from acid aqueous solution by using an amidoxime-functionalized UHMWPE fiber 被引量:3
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作者 yu-lin liang Chan Jin +5 位作者 Jiang-Tao Hu Zhen Liu Yan Li Jian-Rong Zeng Guo-Zhong Wu Xiang-Jun Wei 《Rare Metals》 SCIE EI CAS CSCD 2019年第11期1105-1112,共8页
A new amidoxime-functionalized ultrahigh molecular weight polyethylene fibrous adsorbent(UHMWPEg-PAO) was used for the recovery of Au(III) from acid aqueous solution.The maximum experimental absorption capacity of UHM... A new amidoxime-functionalized ultrahigh molecular weight polyethylene fibrous adsorbent(UHMWPEg-PAO) was used for the recovery of Au(III) from acid aqueous solution.The maximum experimental absorption capacity of UHMWPE-g-PAO fiber was found to be approximately 220.0 mg·g^-1.Au adsorption on UHMWPE-g-PAO was characterized by synchrotron radiation-based microcomputed tomography(SR-μ-CT),transmission electron microscopy(TEM),X-ray absorption near-edge structure spectroscopy(XANES) and synchrotron radiation-based Fourier transform infrared microspectroscopy(SR-FTIR).The SR-μ-CT and TEM results showed the distribution features of gold particles on the fiber.The mechanism of Au(III) recovery from aqueous solutions by UHMWPE-g-PAO was based on the adsorbed Au(III) ions,which were reduced to metallic zero-valent gold(Au(0)) by amino groups(-NH2) in the amidoxime(AO)groups during the adsorption process,as confirmed by highresolution TEM(HRTEM) and XANES analyses.X-ray diffraction(XRD) results indicated that the incineration ashes contained metallic zero-valent gold.In conclusion,this amidoxime-functionalized fibrous adsorbent is a promising material for recovering gold from aqueous solution. 展开更多
关键词 UHMWPE-g-PAO Adsorption mechanism GOLD Reduction
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Unraveling the Reactivity and Selectivity of Atomically Isolated Metal-Nitrogen Sites Anchored on Porphyrinic Triazine Frameworks for Electroreduction of CO_(2) 被引量:8
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作者 Ying Hou Yuan-Biao Huang +10 位作者 yu-lin liang Guo-liang Chai Jun-Dong Yi Teng Zhang Ke-Tao Zang Jun Luo Rui Xu Hua Lin Su-Yuan Zhang Hui-Min Wang Rong Cao 《CCS Chemistry》 CAS 2019年第4期384-395,共12页
Electroreduction of CO_(2)(CO_(2) RR)to value-added chemicals offers a promising approach to balance the global carbon emission,but still remains a signifi-cantchallengeduetohighoverpotential,lowfaradaic efficiency,an... Electroreduction of CO_(2)(CO_(2) RR)to value-added chemicals offers a promising approach to balance the global carbon emission,but still remains a signifi-cantchallengeduetohighoverpotential,lowfaradaic efficiency,and poor selectivity of electrocatalysts systems. 展开更多
关键词 single-atom catalyst electroreduction of CO_(2) PORPHYRIN covalent triazine framework
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