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Your search keyword '"Li, Xuejiao"' showing total 10 results
Start Over Author "Li, Xuejiao" Journal advanced functional materials
10 results on '"Li, Xuejiao"'

3. Drug Delivery: Multifunctional Up‐Converting Nanocomposites with Smart Polymer Brushes Gated Mesopores for Cell Imaging and Thermo/pH Dual‐Responsive Drug Controlled Release (Adv. Funct. Mater. 33/2013)

Author

Zhang, Xiao, primary, Yang, Piaoping, additional, Dai, Yunlu, additional, Ma, Ping'an, additional, Li, Xuejiao, additional, Cheng, Ziyong, additional, Hou, Zhiyao, additional, Kang, Xiaojiao, additional, Li, Chunxia, additional, and Lin, Jun, additional

Published
2013
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7. Full Color Emission in ZnGa2O4: Simultaneous Control of the Spherical Morphology, Luminescent, and Electric Properties via Hydrothermal Approach.

Author

Zhang, Yang, Wu, Zhijian, Geng, Dongling, Kang, Xiaojiao, Shang, Mengmeng, Li, Xuejiao, Lian, Hongzhou, Cheng, Ziyong, and Lin, Jun

Subjects
LUMINESCENCE, PHOSPHORS, NANOSTRUCTURED materials, PHOTOLUMINESCENCE, RAMAN spectra
Abstract

ZnGa2O4 and ZnGa2O4: Mn2+/Eu3+ with uniform nanosphere (diameter about 400 nm) morphology have been synthesized via a facile hydrothermal approach. XRD, Raman spectra, XPS, FT-IR, SEM, TEM, photoluminescence (PL), and cathodoluminescecne (CL) spectra are used to characterize the resulting samples. The controlled experiments indicate the dosage of trisodium citrate and pH values are responsible for shape determination of the ZnGa2O4 products. The possible fast crystallization-dissolution-recrystallization formation mechanism for these nanospheres is presented. Under UV light and low-voltage electron beam excitation, ZnGa2O4, ZnGa2O4: Mn2+ and ZnGa2O4: Eu3+ emit bright blue, green, and red luminescence, respectively. Based on density functional theory calculations from first principles, the green and red emission are caused by the Mn 3d and Eu 4f electronic structures, respectively. Besides, the dependence of the CL intensity on the calcination temperature and electrical conductivity of the samples is presented. The ZnGa2O4: Mn2+ nanospheres have a higher CL intensity than that of bulk samples under the same excitation condition. The realization of three primary colors from a single host material suggests that full color display based on ZnGa2O4 nanospheres might be achievable, showing that these materials have potential applications in lighting and display fields. [ABSTRACT FROM AUTHOR]

Published
2014
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9. Up‐Conversion Luminescent and Porous NaYF4:Yb3+, Er3+@SiO2Nanocomposite Fibers for Anti‐Cancer Drug Delivery and Cell Imaging

Author

Hou, Zhiyao, Li, Chunxia, Ma, Ping'an, Cheng, Ziyong, Li, Xuejiao, Zhang, Xiao, Dai, Yunlu, Yang, Dongmei, Lian, Hongzhou, and Lin, Jun

Abstract

Up‐conversion (UC) luminescent and porous NaYF4:Yb3+, Er3+@SiO2nanocomposite fibers are prepared by electrospinning process. The biocompatibility test on L929 fibrolast cells reveals low cytotoxicity of the fibers. The obtained fibers can be used as anti‐cancer drug delivery host carriers for investigation of the drug storage/release properties. Doxorubicin hydrochloride (DOX), a typical anticancer drug, is introduced into NaYF4:Yb3+, Er3+@SiO2nanocomposite fibers (denoted as DOX‐NaYF4:Yb3+, Er3+@SiO2). The release properties of the drug carrier system are examined and the in vitro cytotoxicity and cell uptake behavior of these NaYF4:Yb3+, Er3+@SiO2for HeLa cells are evaluated. The release of DOX from NaYF4:Yb3+, Er3+@SiO2exhibits sustained, pH‐sensitive release patterns and the DOX‐NaYF4:Yb3+, Er3+@SiO2show similar cytotoxicity as the free DOX on HeLa cells. Confocal microscopy observations show that the composites can be effectively taken up by HeLa cells. Furthermore, the fibers show near‐infrared UC luminescence and are successfully applied in bioimaging of HeLa cells. The results indicate the promise of using NaYF4:Yb3+, Er3+@SiO2nanocomposite fibers as multi‐functional drug carriers for drug delivery and cell imaging.

Published
2012
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10. Drug Delivery: Up‐Conversion Luminescent and Porous NaYF4:Yb3+, Er3+@SiO2Nanocomposite Fibers for Anti‐Cancer Drug Delivery and Cell Imaging (Adv. Funct. Mater. 13/2012)

Author

Hou, Zhiyao, Li, Chunxia, Ma, Ping'an, Cheng, Ziyong, Li, Xuejiao, Zhang, Xiao, Dai, Yunlu, Yang, Dongmei, Lian, Hongzhou, and Lin, Jun

Abstract

Up‐conversion luminescent and porous NaYF4:Yb3+, Er3+@SiO2nanocomposite fibers are prepared via an electrospinning process. As reported by Ping'an Ma, Jun Lin, and co‐workers on page 2713, the fibers can be used as anticancer drug delivery host carriers and the drug release shows sustained, pH‐sensitive release patterns. The fiber fragments loaded with drug show near‐infrared up‐conversion emission and this can be applied in the field of cell imaging.

Published
2012
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