|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Target-triggered inhibiting oxidase-mimicking activity of platinum nanoparticles for ultrasensitive colorimetric detection of silver ion显示文摘The development of efficient methods for the detection of hazardous and toxic elements is extremely important for environmental security and public health. In this work, we developed a facile colorimetric assaying system for Ag+ detection in aqueous solution. Chitosan-stabilized platinum nanoparticles(ChPtNPs) were synthesized and severed as an artificial oxidase to catalyze the oxidation of the substrate3,30,5,50-tetramethylbenzidine(TMB) and generate color signal. In the presence of Ag+, due to the strong metallophilic interactions between Ag+ and Pt2+ on the surface of Ch-PtNPs, Ag+ can weaken the affinity to the substrates and inactivate the catalytic activity of Ch-PtNPs, leading to decreased absorbance signal to varying degrees depending on Ag+ amount. Combing the specific binding between Ch-PtNPs and Ag+ with signal amplification procedure based on the Ch-PtNPs-catalyzed TMB oxidation, a sensitive,selective, simple, cost-effective, and rapid detection method for Ag+ can be realized. Ag+ ions in tap and lake waters have been successfully detected. We ensured that the proposed method can be a potential alternative for Ag+ determination in environmental samples. | Haohua Deng Shaobin He Xiuling Lin Lu Yang Zhen Lin Ruiting Chen Huaping Peng Wei Chen | 2019 | Chinese Chemical Letters2019，30，9： | 3 |
| 2 | Determination of Hydrocortisone in Cosmetics by CdSe/CdS Quantum Dots-Based Fluoroimmunoassay Using Magnetic Fe304/Au Nanoparticles as Solid Carriers显示文摘 | Wang, Xiuling Wei, Lu Tao, Guanhong Dai, Long | 2011 | Chinese Journal of Chemistry2011，29，3： | 2 |
| 3 | Disuccinimidyl suberate cross-linked hemoglobin as a novel red blood cell substitute显示文摘Disuccinimidyl suberate (DSS) intramolecularly cross-linked hemoglobin (Hb) was developed as a novel red blood cell substitute. A multi-angle laser light scattering detector coupled with size exclusion HPLC was applied to determine the molecular weight of the modified Hb. SDS-PAGE was also used as a complement. It was proved that 83.8% of the product was intramolecularly cross-linked Hb with weight-average molecular weights (Mw) of 67.5 kD, 12% was dimeric Hb with Mw of 146.6 kD, and 4.2% was trimeric Hb with Mw of 306.4 kD. The tetramer structure of the cross-linked Hb was stable as shown in size-exclusion chromatography using a mobile phase containing 1 mol/L MgCl2. Analysis by LC-MS demonstrated that the reaction of DSS with Hb mainly took place between the twoα subunits within a Hb molecule, resulting in stabilization of the tetramer structure. However, the cross-linking was not site-specific. The P50 of the cross-linked Hb decreased from 21.8 mmHg to 14.3 mmHg, and the Hill coefficient decreased from 2.22 to 1.41. Result of isoelectric focusing showed that the pI of DSS cross-linked Hb was in the range of 4.6-5.2, similar to that of serum albumin. The safety of DSS cross-linked Hb was favored by animal tests on rats and guinea pigs. Exchange transfusion experiment with DSS cross-linked Hb using rats as a model indicated no pressor effect or other significant side effects. The characteristics and properties of DSS cross-linked Hb were also compared with that of diaspirin cross-linked Hb reported in the literature. | LU Xiuling, ZHENG Chunyang, XU Yuhong & SU Zhiguo National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China School of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China | 2005 | Science China(Life Sciences)2005，48，1： | 1 |
| 4 | Study on the hydrogenation coupling of methane显示文摘 | Bin Dai Xiuling Zhang Lin Zhang Weimin Gong Ren He Wenqi Lu Xinlu Deng | 2001 | Science in China Series B: Chemistry2001，，2： | 1 |
| 5 | Ethylene glycol diglycidyll ether as a protein crosslinking of hemoglobin显示文摘 | Yuhong Xu | 2006 | Chem Technol Biotechnol2006，81，77： | 1 |
| 6 | Caution Needed in Pretreatment of Sediments for Refining Phosphorus-31 Nuclear Magnetic Resonance Analysis: Results from a Comprehensive Assessment of Pretreatment with Ethylenediaminetetraacetic Acid显示文摘 | Ding ShiMing Bai Xiuling Fan Chengxin Zhang Lu | 2010 | EN2010，，5： | 1 |
| 7 | Tumor accumulation of neutron-activatable holmium-containing mesoporous silica nanoparticles in an orthotopic non-small cell lung cancer mouse model显示文摘 | Anthony J. Di Pasqua Michael L. Miller Xiuling Lu Lei Peng Michael Jay | 2012 | Inorganica Chimica Acta2012，，： | 1 |
| 8 | 血压变化和空气污染微粒的化学成分显示文摘[背景]血压升高与颗粒物(PM)空气污染相关,但是与PM化学成分的关联尚不明确。[目的]通过对一组39名大学生进行460次反复访查,探讨血压与不同化学成分的细颗粒物(PM2.5)之间的关联。 | Shaowei Wu Furong Deng Jing Huang Hongyi Wang Masayuki Shima Xin Wang Yu Qin Chanjuan Zheng Hongying Wei Yu Hao Haibo Lv Xiuling Lu Xinbiao Guo | 2013 | 环境与职业医学2013，30，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员