Investigation of the photoluminescent properties, scintillation behaviour and toxicological profile of various magnesium tungstate nanoscale motifs.
Investigation of the photoluminescent properties, scintillation behaviour and toxicological profile of various magnesium tungstate nanoscale motifs.
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DOI：
10.1098/rsos.220994
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发表时间：
2022-12
影响因子：
3.5
通讯作者：
Wong, Stanislaus S. S.
中科院分区：
文献类型：
--
作者：
Hurley, Nathaniel;Srinivas, Sailesh;Fang, Justin;Sun, Manli;Hong, Simon;Chien, Chia Te;Guo, Alan;Khan, Tamor A. A.;Li, Mingxing;Cotlet, Mircea;Moretti, Federico;Bourret, Edith;Radin, Daniel;Tsirka, Stella E. E.;Shelly, Maya;Wong, Stanislaus S. S.
我们采用一锅水热法合成了几种形貌和晶体结构的MgWO4，不仅制备出单斜星状和大尺寸纳米颗粒，而且制备出三斜羊毛球和亚10 nm纳米颗粒。在这里，我们描述的反应参数的重要性，在演示形貌控制所制备的MgWO4。此外，我们将结构和组合物与所得的光致发光和放射发光性质相关联。具体而言，三斜相样品产生421 nm的光致发光发射，而单斜相材料产生515 nm的发射最大值。相应的放射性发光数据的特征在于一个宽的发射峰，位于500 nm的所有样品。退火的羊毛球和亚10 nm的颗粒，以转换的晶体结构从三斜相的单斜相产生的放射性发光（RL）发射信号，这是两个数量级大于其未退火的对应物。最后，为了证实这些材料在生物医学应用中的实际效用，用生物相容性PEG分子官能化一系列亚10 nm颗粒，包括制备和退火的样品，随后发现其容易被各种细胞系以及原代培养的海马神经元吸收，具有低水平的毒性，从而第一次突出了这类特定金属氧化物作为一系列生物医学应用的可行和容易产生的平台的潜力。
We have synthesized several morphologies and crystal structures of MgWO4 using a one-pot hydrothermal method, producing not only monoclinic stars and large nanoparticles but also triclinic wool balls and sub-10 nm nanoparticles. Herein we describe the importance of reaction parameters in demonstrating morphology control of as-prepared MgWO4. Moreover, we correlate structure and composition with the resulting photoluminescence and radioluminescence properties. Specifically, triclinic-phase samples yielded a photoluminescence emission of 421 nm, whereas monoclinic-phase materials gave rise to an emission maximum of 515 nm. The corresponding radioluminescence data were characterized by a broad emission peak, located at 500 nm for all samples. Annealing the wool balls and sub-10 nm particles to transform the crystal structure from a triclinic to a monoclinic phase yielded a radioluminescence (RL) emission signal that was two orders of magnitude greater than that of their unannealed counterparts. Finally, to confirm the practical utility of these materials for biomedical applications, a series of sub-10 nm particles, including as-prepared and annealed samples, were functionalized with biocompatible PEG molecules, and subsequently were found to be readily taken up by various cell lines as well as primary cultured hippocampal neurons with low levels of toxicity, thereby highlighting for the first time the potential of this particular class of metal oxides as viable and readily generated platforms for a range of biomedical applications.
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DOI：
10.3322/caac.20114
发表时间：
2011-07
期刊：
CA: a cancer journal for clinicians
影响因子：
--
作者：
Agostinis P;Berg K;Cengel KA;Foster TH;Girotti AW;Gollnick SO;Hahn SM;Hamblin MR;Juzeniene A;Kessel D;Korbelik M;Moan J;Mroz P;Nowis D;Piette J;Wilson BC;Golab J
通讯作者：
Golab J
影响因子：
3.9
作者：
Meng, Jie;Chen, Tao;Wei, Xiao;Li, Jixue;Zhang, Ze
通讯作者：
Zhang, Ze
影响因子：
0.7
作者：
Blistanov, AA;Zadneprovskii, BI;Yakimova, IO
通讯作者：
Yakimova, IO
DOI：
10.1016/j.nima.2009.06.040
发表时间：
2009-09-01
影响因子：
1.4
作者：
Danevich, F. A.;Chernyak, D. M.;Vostretsov, Yu. Ya.
通讯作者：
Vostretsov, Yu. Ya.
影响因子：
8.6
作者：
Kim, Junyeong;Do, Jeong Yeon;Kang, Misook
通讯作者：
Kang, Misook