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您的检索式：作者名="LI ShiNeng"
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| 1 | Properties and evaluation of amidoxime-based UHMWPE fibrous adsorbent for extraction of uranium from seawater显示文摘An amidoxime-based ultra-high molecular weight polyethylene(UHMWPE)fibrous adsorbent was successfully prepared by γ-irradiation-induced graft copolymerization of acrylonitrile(AN)and acrylic acid(AA),followed by amidoximation.The grafting of AN and AA on the UHMWPE fiber and the amidoximation of the grafted fiber were confirmed by Fourier transform infrared spectroscopy,scanning electron microscopy,and thermogravimetric analysis.The mechanical property of the original and modified UHMWPE fibers was compared by single-filament strength test.The adsorption property of the UHMWPE fibrous adsorbent was evaluated by adsorption test in uranyl nitrate solution and seawater.The surface of the modified UHMWPE fibers was covered by the grafting layer and became rough.The tensile strength of the amidoxime-based UHMWPE fibrous adsorbent was influenced by the absorbed dose and hydrochloric acid elution,but was independent of the grafting yield and amidoximation.The uranium adsorption amount of the amidoxime-based UHMWPE fibrous adsorbent after immersing in seawater for 42 days was 2.3 mg-U/g. | XING Zhe HU JiangTao WANG MouHua ZHANG WenLi LI ShiNeng GAO QianHong WU GuoZhong | 2013 | Science China Chemistry2013，56，11： | 17 |
| 2 | Semi-automated synthesis,validation and microPET imaging of ^(18)F-FP-DTBZ as a vesicular monoamine transporter ligand显示文摘This work was to develop a semi-automated synthesis of 18F-9-fluoropropyl-9-desmethyl-DTBZ (18F-FP-DTBZ) and validate its potential as a vesicular monoamine transporter 2 (VMAT2) ligand.18F-FP-DTBZ was synthesized by a semi-automated procedure in a 21-35% yield without decay correction and with a radiochemical purity of >98%.Bioistribution in rats exhibited a favorable brain uptakes of the ligand (0.31±0.04 ID% at 60min post injection,n=8).The highest radioactivity located in VMAT2 enriched striatal tissue.The target-to-nontarget ratio (striatum/cerebellum,ST/CB) was 4.81±0.84.Blocking studies implied that striatum uptake could be blocked by DTBZ (a VMAT2 inhibitor) but could not by CFT (a dopamine transporter inhibitor).MicroPET imaging with 18F-FP-DTBZ in normal rats gave high quality images in which high radioactivity were observed in the striatal tissue.Time-and-activity curves revealed good retention in the target (striatum) and rapid clearance in the background (cerebellum),which resulted in a maximum ST/CB ratio of 5.08±0.81 (n=3) in 80-120min.By contrast,the 6-hydroxydopamine unilateral lesioned rats gave asymmetrical striata images with higher 18F-FP-DTBZ concentration on the unlesioned side (unlesioned-ST/CB=5.21±0.38,n=3) than the lesioned (lesioned-ST/CB=2.34±0.51).The results validated that 18F-FP-DTBZ is a favorable PET ligand binding to VMAT2. | CHEN Zhengping LIU Chunyi LI xiaomin TANG Jie TAN Cheng HUANG Hongbo YU Huixin LUO Shineng | 2012 | Nuclear Science and Techniques2012，23，1： | 0 |
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