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第十八届全国波谱学学术年会

作者： Y.Nishiyama m.malon T.Kobayashi m.Pruski JEOL RESONANCE Inc. AmES Lab.and Dep.of Chem. Iowa State University

我们将要展示在超高速mAS(100kHz)时,如何通过CP-based HSQC得到和通过J耦合一样的1H-13C相关信息。首先我们通过第一个CP把样品中1H的磁化转移到13C上,然后再用第二个CP把13C上的磁化重新转回到1H上,最后进行测定。如果我们把第一个的C...

我们将要展示在超高速mAS(100kHz)时,如何通过CP-based HSQC得到和通过J耦合一样的1H-13C相关信息。首先我们通过第一个CP把样品中1H的磁化转移到13C上,然后再用第二个CP把13C上的磁化重新转回到1H上,最后进行测定。如果我们把第一个的CP(1H to 13C)时间设定的较长( ms),把第二个的CP(13C to 1H)时间设定的较短(.3ms),我们就可以选择性地得到基于1H-13C键的相关,并且和第二个CP也设定为较长时

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monitoring magnesium degradation using microdialysis and fabric-based biosensors

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Science China materials 2018年第4期61卷 643-651页

作者： m.Su Natasha Radha S.P.malon Dedy H.B.Wicaksono Emma P.Córcoles Hendra Hermawan Faculty of Biosciences and medical Engineering Universiti Teknologi Malaysia Faculty of Science and Technology Universiti Kebangsaan Malaysia Department of Biomedical Engineering Faculty of Life Sciences and Technology Swiss German University Instituto de microelectrónica de Barcelona (ImB-CNm) CSIC Campus UAB Department of mining Metallurgical and Materials Engineering & CHU de Québec Research Center

This paper describes the development of a monitoring system capable of detecting the concentration of magnesium ions(mg^(2+)) released during the degradation of magnesium implants. The system consists of a microdialysis probe that samples fluid adjacent to the implant and a catalytic biosensor specific to mg^(2+)ions. The biosensor was fabricated on a cotton fabric platform, in which a mixture of glycerol kinase and glycerol-3-phosphate oxidase enzymes was immobilized on the fabric device via a simple matrix entrapment technique of the cotton fibers. Pure magnesium was used as the implant material. Subsequently, the concentration of ions released from the degradation of the magnesium specimen in Ringer's solution was evaluated using cyclic voltammetry technique. The device demonstrated a pseudo-linear response from 0.005 to 0.1 mmol L^(-1) with a slope of 67.48 μA mmol^(-1) L. Detectable interfering species were lesser than 1%indicating a high selectivity of the fabric device. Furthermore,the device requires only 3 μL of fluid sample to complete the measurement compared to spectroscopic method(±50 μL),hence providing a higher temporal resolution and reduced sampling time. The system could potentially provide a real time assessment of the degradation behavior, a new studied aspect in biodegradable metals research.

关键词： biodegradable metal biosensor fabric device magnesium microdialysis

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Elevated serum nitric oxide and hydrogen peroxide levels as potential valuable predictors of herpes zoster

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Asian Pacific Journal of Tropical medicine 2018年第6期11卷 381-386页

作者： Soheila Nasiri mehdi Hedayati Seyed mohammad Riahi Reza m Robati marjan Khazan Skin Research Center Shahid Beheshti University of Medical SciencesTehranIran Cellular and molecular Endocrine Research Center Research Institute for Endocrine SciencesShahid Beheshti University of Medical SciencesTehranIran Department of Public Health Faculty of HealthBirjand University of Medical SciencesBirjand Department of Epidemiology School of HealthShahid Beheshti University of Medical SciencesTehranIran

Objective:To evaluate the biomarkers of oxidative stress in herpes zoster patients compared with control ***:This study compared the nitric oxide(NO),hydrogen peroxide(H2 O2),malon dialdehyde,uric acid,and bilirubin levels between 43 herpes zoster patients and 47 age-matched control *** area under the curve of the receiver operating characteristic curve was performed to evaluate the final logistic regression ***:The significant differences were observed in the serum levels of NO,H2 O2,and malondialdehyde between the case and the control groups(Pmarkers were strongly associated with increased disease severity(Pmultiple logistic regression analysis with the highest area under the curve[0.98(95%CI 0.95-1.00)]and the minimum number of variables showed that high levels of NO(OR 1.24;95%CI 1.06-1.46;P=0.008)and H2 O2(OR 1.25;95%CI 1.09-1.43;P=0.001)were associated with herpes ***:High levels of NO and H2 O2 were observed in patients with herpes *** NO and H2 O2 levels might be associated with herpes zoster,which needs to be confirmed by further studies.

关键词： Herpes zoster Oxidative stress malondialdehyde Nitric oxide Hydrogen peroxide

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