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| 1 | Nanocomposites based on lanthanide-doped upconversion nanoparticles:diverse designs and applications显示文摘Lanthanide-doped upconversion nanoparticles(UCNPs)have aroused extraordinary interest due to the unique physical and chemical properties.Combining UCNPs with other functional materials to construct nanocomposites and achieve synergistic effect abound recently,and the resulting nanocomposites have shown great potentials in various fields based on the specific design and components.This review presents a summary of diverse designs and synthesis strategies of UCNPs-based nanocomposites,including self-assembly,in-situ growth and epitaxial growth,as well as the emerging applications in bioimaging,cancer treatments,anti-counterfeiting,and photocatalytic fields.We then discuss the challenges,opportunities,and development tendency for developing UCNPs-based nanocomposites. | Kaimin Du Jing Feng Xuan Gao Hongjie Zhang | 2022 | Light(Science & Applications)2022，11，8： | 4 |
| 2 | Upconversion nanorods anchored metal-organic frameworks via hierarchical and dynamic assembly for synergistic therapy显示文摘Heterogeneous materials made of metal-organic frameworks(MOFs)and optically active nanomaterials have attracted intensive interests in recent years due to their distinct physicochemical properties,but controllable fabrication of these materials remains challenging yet.In this work,we report a new strategy to in situ fabricate heterogeneous nanomaterials based on UiO-66-NH2 and upconversion nanorods(UCNRs)via a hierarchical and dynamic assembly process.Core–satellite structured UiO-66-NH2@UCNRs have been successfully fabricated,and the formation mechanism was thoroughly investigated by the combined use of scanning electron microscopy(SEM)and Fourier transform infrared(FTIR)spectroscopy.Our results revealed the involvement of three main stages:supramolecular assembly of UiO-66-NH2 precursors with UCNRs,nucleation and growth of UiO-66-NH2 crystal,and dynamic assembly with UCNRs accompanied by Ostwald ripening.Furthermore,based on the hereditary optical and porous features of the heterogeneous nanomaterials,an enhanced multimodal synergistic anticancer platform has been established by integrating near-infrared(NIR)-triggered photodynamic therapy(PDT)and pH-triggered anticancer drug delivery,as confirmed by cellular experiments.The present study provides a new avenue for developing advanced functional heterogeneous nanomaterials via the hierarchical and dynamic assembly strategy. | Wenfeng Guo Li-Li Tan Qiang Li Juanmin Li Li Shang | 2022 | Nano Research2022，15，8： | 0 |
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