典型文献
Preparation and properties of bifunctional Gd2O3/GQD composite nanoparticles
文献摘要：
Nanocomposites of graphene quantum dots(GQDs)modified gadolinium oxide(Gd2O3)particles were successfully synthesized.In addition,the effects of the amount of GQDs and the particle size of Gd2O3 on the properties of nanocomposites were investigated.The structures and properties of nanoparticles were characterized by X-ray diffraction,X-ray photoelectron spectroscopy,Fourier transform infrared spec-troscopy,field emission scanning electron microscopy,transmission electron microscopy,photo-luminescence spectrometry,and magnetic resonance imaging.The results show that the synthesized particles Gd2O3/GQD are spherical with a diameter of approximately 40 nm and have excellent fluo-rescence and magnetic property,and its relaxation rate(r1=25.18(mmol/L)-1/s)is higher than that of the typical commercial contrast agents Gd-DTPA(r1=4.5(mmol/L)-1/s).The fluorescence property of Gd2O3/GQD is optimized by varying the VGQDs∶VGd2O3 ratio,and 1∶1 ratio of VGQDs∶VGd2O3 results in the best fluorescence property.The large particles of Gd2O3 improve the relaxation property of nano-composites.Therefore,the nanocomposites Gd2O3/GQD with magnetic and fluorescence characteristics can be used in biological imaging,drug targeting,and in-vivo diagnostic analysis.
文献关键词：
中图分类号：
作者姓名：
Chengjie Xu;Meigui Ou;Hao Zhou;Chunlin Yang
作者机构：
College of Materials and Metallurgy,University of Guizhou,Guiyang 550025,China;National Local Co-construction Engineering Laboratory for High Performance Metal Structure Material and Manufacture Technology,Guiyang 550025,China;College of Chemistry and Materials Engineering,Guiyang University,Guiyang 550003,China
文献出处：
引用格式：
[1]Chengjie Xu;Meigui Ou;Hao Zhou;Chunlin Yang-.Preparation and properties of bifunctional Gd2O3/GQD composite nanoparticles)[J].稀土学报（英文版）,2022(07):1118-1125
A类：
VGQDs,VGd2O3
B类：
Preparation,properties,bifunctional,nanoparticles,Nanocomposites,graphene,quantum,dots,modified,gadolinium,oxide,were,successfully,synthesized,In,addition,effects,amount,nanocomposites,investigated,structures,characterized,by,ray,diffraction,photoelectron,spectroscopy,Fourier,transform,infrared,field,emission,scanning,microscopy,transmission,luminescence,spectrometry,magnetic,resonance,imaging,results,show,that,spherical,diameter,approximately,have,excellent,property,its,relaxation,rate,r1,higher,than,typical,commercial,contrast,agents,DTPA,fluorescence,optimized,varying,best,large,improve,Therefore,characteristics,used,biological,drug,targeting,vivo,diagnostic,analysis
AB值：
0.438977
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