Porous intermetallics show potential in the field of filtration and separation as well as in the field of catalysis.Herein,porous Ti Fe2intermetallics were fabricated by the reactive synthesis of elemental powders.The...Porous intermetallics show potential in the field of filtration and separation as well as in the field of catalysis.Herein,porous Ti Fe2intermetallics were fabricated by the reactive synthesis of elemental powders.The phase transformation and pore formation of porous TiFe2intermetallics were investigated,and its corrosion behavior and hydrogen evolution reaction(HER)performance in alkali solution were studied.Porous TiFe2intermetallics with porosity in the range of 34.4%-56.4%were synthesized by the diffusion reaction of Ti and Fe elements,and the pore formation of porous TiFe2intermetallic compound is the result of a combination of the bridging effect and the Kirkendall effect.The porous TiFe2samples exhibit better corrosion resistance compared with porous 316L stainless steel,which is related to the formation of uniform nanosheets on the surface that hinder further corrosion,and porous TiFe2electrode shows the overpotential of 220.6 and 295.6 mV at 10 and 100 mA·cm-2,suggesting a good catalytic performance.The synthesized porous Fe-based intermetallic has a controllable pore structure as well as excellent corrosion resistance,showing its potential in the field of filtration and separation.展开更多
2型糖尿病(diabetes mellitus type 2, T2DM)作为一种慢性疾病,起病隐匿,三多一少是常见症状,目前发病机制尚不明确。若血糖控制欠佳,5~10年会诱发一系列其他疾病如语言障碍、血管病变、中风瘫痪等,严重损害患者健康,威胁生命。目前,通...2型糖尿病(diabetes mellitus type 2, T2DM)作为一种慢性疾病,起病隐匿,三多一少是常见症状,目前发病机制尚不明确。若血糖控制欠佳,5~10年会诱发一系列其他疾病如语言障碍、血管病变、中风瘫痪等,严重损害患者健康,威胁生命。目前,通过调节肠道菌群对该病进行治疗干预成为最新研究方向。中药作为我国传统用药,能有效降低血糖,缓解T2DM所带来的心绞痛等并发症。已有研究表明中药、中药复方及活性成分能通过影响肠道菌群菌种类、数量、相对丰富度、代谢途径等调节糖尿病炎症或刺激胰岛细胞,以达到治疗或舒缓T2DM症状的目的。本文通过查阅文献对中药影响肠道菌群治疗、干预T2DM的相关研究进行综述,并提出在肠道菌群研究方面的一些不足之处,期望能为中药更全面地发挥其治疗作用提供参考。展开更多
基金financially supported by the National Natural Science Foundation of China(No.51971251)。
文摘Porous intermetallics show potential in the field of filtration and separation as well as in the field of catalysis.Herein,porous Ti Fe2intermetallics were fabricated by the reactive synthesis of elemental powders.The phase transformation and pore formation of porous TiFe2intermetallics were investigated,and its corrosion behavior and hydrogen evolution reaction(HER)performance in alkali solution were studied.Porous TiFe2intermetallics with porosity in the range of 34.4%-56.4%were synthesized by the diffusion reaction of Ti and Fe elements,and the pore formation of porous TiFe2intermetallic compound is the result of a combination of the bridging effect and the Kirkendall effect.The porous TiFe2samples exhibit better corrosion resistance compared with porous 316L stainless steel,which is related to the formation of uniform nanosheets on the surface that hinder further corrosion,and porous TiFe2electrode shows the overpotential of 220.6 and 295.6 mV at 10 and 100 mA·cm-2,suggesting a good catalytic performance.The synthesized porous Fe-based intermetallic has a controllable pore structure as well as excellent corrosion resistance,showing its potential in the field of filtration and separation.
文摘2型糖尿病(diabetes mellitus type 2, T2DM)作为一种慢性疾病,起病隐匿,三多一少是常见症状,目前发病机制尚不明确。若血糖控制欠佳,5~10年会诱发一系列其他疾病如语言障碍、血管病变、中风瘫痪等,严重损害患者健康,威胁生命。目前,通过调节肠道菌群对该病进行治疗干预成为最新研究方向。中药作为我国传统用药,能有效降低血糖,缓解T2DM所带来的心绞痛等并发症。已有研究表明中药、中药复方及活性成分能通过影响肠道菌群菌种类、数量、相对丰富度、代谢途径等调节糖尿病炎症或刺激胰岛细胞,以达到治疗或舒缓T2DM症状的目的。本文通过查阅文献对中药影响肠道菌群治疗、干预T2DM的相关研究进行综述,并提出在肠道菌群研究方面的一些不足之处,期望能为中药更全面地发挥其治疗作用提供参考。
