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Gadolinium fluoride mesoporous microspheres: controllable synthesis, materials and biological properties
Jie Xu1; Shili Gai1; a Ping'an Ma2; Yunlu Dai1; Guixin Yang1; Fei He1; Piaoping Yang1
Source PublicationJournal of Materials Chemistry B

In this study, uniform gadolinium fluoride microspheres with controllable phases and structures have been synthesized for the first time by a facile ion exchange process using Gd(OH)CO3 solid microspheres as precursors. It is found that the as-synthesized NaxGdyFx+3y samples, including orthorhombic GdF3, cubic Na5Gd9F32 and hexagonal NaGdF4, all consist of well dispersed microspheres with mesopores. After the conversion process, the products mainly inherit the size and shape of the precursors. Moreover, the used ethylene glycol (EG) plays a key role in the phase and structure of the final NaxGdyFx+3y mesoporous spheres by impacting the etching and ion exchange process. Based on the time-dependent experiments of gadolinium fluorides, the possible formation mechanism is discussed in detail. Under 273 nm UV excitation, NaxGdyFx+3y:2% Eu3+ shows bright red emissions due to efficient energy transfer from Gd3+ to Eu3+. NaxGdyFx+3y:17% Yb3+/3% Er3+ exhibits the characteristic up-conversion (UC) emissions of Er3+. It is noted that the highest DC and UC emission intensities of NaGdF4:Ln should be due to the hexagonal phase. The fluorescent NaxGdyFx+3y mesoporous microspheres show obvious drug (doxorubicin hydrochloride, DOX) storage/release properties and good biocompatibility, suggesting their potential application in biomedical fields.

Indexed BySCI
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, bioMaterials
WOS IDWOS:000332481700005
被引频次[WOS]:22   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题Faculty of Health Sciences
Corresponding AuthorShili Gai; Piaoping Yang
Affiliation1.Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China
2.State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130023, P. R. China
GB/T 7714
Jie Xu,Shili Gai,a Ping'an Ma,et al. Gadolinium fluoride mesoporous microspheres: controllable synthesis, materials and biological properties[J]. Journal of Materials Chemistry B,2014,2:1791–1801.
APA Jie Xu.,Shili Gai.,a Ping'an Ma.,Yunlu Dai.,Guixin Yang.,...&Piaoping Yang.(2014).Gadolinium fluoride mesoporous microspheres: controllable synthesis, materials and biological properties.Journal of Materials Chemistry B,2,1791–1801.
MLA Jie Xu,et al."Gadolinium fluoride mesoporous microspheres: controllable synthesis, materials and biological properties".Journal of Materials Chemistry B 2(2014):1791–1801.
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