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A ferrocene-mediated anti-interfering glucose biosensor based on glutin and cellulose acetate

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High Technology Letters 2006年第3期12卷 263-266页

作者：吴宝艳 Li Jing shi Haibin Huang Jiadong anzai Jun-ichi Osa Tetsuo Chen Qiang College of Life seienees Nankai University Tianjin 300071. P.R. China Graduate school of Pharnlaceutical sciences Tohoku University Sendai 9808578 Japan

A ferrocene-mediated glucose biosensor removing interference of ascorbic acid and uric acid was developed by coating of ferrocene, glutin and cellulose acetate on screen-printed gold electrode surface. The resuhs show that it can detect glucose sensitively in the presence of uric acid and ascorbic acid, and also suppress the leakage velocity of fcrrocene. Compared to the currents of the pretreated electrode, it decreases the current of uric acid and ascorbic acid by 99.4% and 98.8% at 400 mV, respectively, with a dynamic range of 0 - 30 mM for glucose, sensitivity of 30.73 nA/mM, response time of 10 s, and correlation coefficient of 0.998 8.

关键词： glucose biosensor anti-interferefering ferrocene glutin cellulose acetate

Land and Water Use in Rice-upland Crop Rotation Areas in Lower Ili River Basin, Kazakhstan

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Journal of Northeast Agricultural University(English Edition) 2010年第4期17卷 8-13页

作者： sHIMIZU Katsuyuki KITAMURA Yoshinobu anzai Toshihiko KUBOTA Jumpei Faculty of Agriculture Tottori University The Graduate school of Agriculture Tottori University Research Institute for Humanity and Nature

The lower Ili River Basin is located in semi-arid area, and the annual rainfall is 177mm. Therefore, the irrigation is inevitable for agriculture. Large-scale irrigated agriculture had been developed since 1960＇s in the lower parts of the river and the total irrigated area is about 32 000 hm2. In the project area, the paddy rice-upland crop rotation has been practiced. Due to the domestic water use for hydropower and agriculture as well as water use among riparian countries, the deficit of water for agriculture in the lower part has been concerned. The authors, therefore, conducted the field survey and water balance analysis of the Akdara irrigation project in the lower Ill River Basin in order to assess the land and water uses. Moreover, the impact of the water use on water environment to the basin was analyzed. The following results were obtained as following （1） the groundwater level in the irrigated district varied from 1.5 m to 3.5 m through year. （2） 1970＇s groundwater level was drastically raised from 8 m to 3 m and the groundwater had been recharged in this period. （3） Water use efficiency of agriculture, which is the ratio of total evapotranspiration to the total water withdrawal was as low as 0.23.

关键词： crop rotation water balance overall irrigation efficiency groundwater fluctuation dry land

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Polyamine-Polymeric Micelle Hybrid Hydrogel: Microscopic Properties of Crosslinkers Affecting Macroscopic Rheological Properties of Hydrogel

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Journal of Biomaterials and Nanobiotechnology 2015年第1期6卷 36-44页

作者： Chikara Yoshida Tomoki Ito Ryosuke anzai Kengo Fukuda Keita Kinoshita seiichi sonotaki Taku Takami Yoshihiko Murakami Department of Organic and Polymer Materials Chemistry Faculty of Engineering Tokyo University of Agriculture and Technology Tokyo Japan

We have developed a hybrid hydrogel that is formed from a crosslinkable polymeric micelle and a polyamine. Under optimal conditions, the hydrogel rapidly formed in one second after a crosslinkable polymeric micelle solution was mixed with a polyamine solution. We could change the hydrogel’s gelation properties, such as the storage modulus and gelation time by tuning the molecular weights of block copolymers and by tuning the pH of the dissolving-solvent of the hydrogel’s constituent components. Furthermore, we have clarified here that the structural difference among the micelles acting as crosslinkers can affect the gelation properties of the hydrogel. According to our findings, the hydrogel that was formed from the polymeric micelles possessing a highly packed (i.e., well-entangled or crosslinked) inner core exhibited a higher storage modulus than the hydrogel that was formed from the polymeric micelles possessing a lowly packed structure. Our results demonstrate that a microscopic structural difference among crosslinkers can induce a macroscopic change in the properties of the resulting hydrogels. For medical applications, the hydrogel proposed in the present paper can encapsulate the hydrophobic compounds in crosslinkers (polymeric micelles) so that the hydrogel can be available as the biomaterial for their sustained release.

关键词： Hydrogel Polymeric Micelle self-Assembly Crosslinker Block Copolymer

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纳米颗粒对葡萄糖生物传感器性能影响的研究

高技术通讯 2005年第6期15卷 50-54页

作者：吴宝艳杨钰宋昭赵紫霞安(齐)顺一长哲郎陈强南开大学生命科学学院天津300071 日本东北大学大学院药学研究科仙台9808578

制备了纳米金颗粒和纳米铜颗粒,分别用以修饰葡萄糖生物传感器,并选用丝网印刷金电极测试研究了纳米颗粒对葡萄糖生物传感器性能的影响.结果表明:纳米铜颗粒不能增强葡萄糖生物传感器的响应电流,并且延长了其响应时间;纳米金颗粒增强了... 详细信息

制备了纳米金颗粒和纳米铜颗粒,分别用以修饰葡萄糖生物传感器,并选用丝网印刷金电极测试研究了纳米颗粒对葡萄糖生物传感器性能的影响.结果表明:纳米铜颗粒不能增强葡萄糖生物传感器的响应电流,并且延长了其响应时间;纳米金颗粒增强了葡萄糖生物传感器的响应电流,缩短了其响应时间,提高了其抗干扰性,但不能拓宽其检测的线性范围,并且响应电流受工作电压的影响较大;随着工作电压的下降,响应电流迅速下降,与未修饰葡萄糖生物传感器响应电流下降趋势一致.

关键词：纳米颗粒葡萄糖生物传感器丝网印刷金电极性能测试

使用低压汞灯用乙硅烷和丙硅烷光化学气相淀积氢化非晶硅薄膜

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微电子学与计算机 1988年第2期 23-25页

作者： Ken Kumata Uichi ltoh Yasutake Toyoshima Naoki Tanaka Hiroyuki anzai Akihisa Matsuda 孙建诚

在来自低压汞灯的光直接激励下,光解乙硅烷（si2H6）和丙硅烷（si3H8）制备了氢化非晶硅薄膜（a-si:H）.研究了与制备条件,诸如分压及衬底温度等有关的薄膜的电子学和光学特性.在300℃用si3H8制备的薄膜的暗电导率为10-10scm-1;在光通量... 详细信息

在来自低压汞灯的光直接激励下,光解乙硅烷（si2H6）和丙硅烷（si3H8）制备了氢化非晶硅薄膜（a-si:H）.研究了与制备条件,诸如分压及衬底温度等有关的薄膜的电子学和光学特性.在300℃用si3H8制备的薄膜的暗电导率为10-10scm-1;在光通量为1015cm-2s-1的He-Ne激光器的照射下的亮电导率为10-5scm-1.在压力低于20Torr的情况下,来自于装在衬底平板旁边的缝形喷嘴的硅烷气体在衬底上吹过时,获得了高光电导特性的a-si:H薄膜.

关键词：淀积速率光电导环形喷嘴衬底温度低压汞灯化学气相淀积乙硅烷二矽烷 sIH

石英晶体微天平实时监测低密度脂蛋白在胆固醇修饰葡聚糖上的吸附及其动力学研究

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高等学校化学学报 2005年第6期26卷 1166-1169页

作者：韩松岩刘东波黄亮王深琪刘清平安齐顺一长哲郎陈强南开大学生命科学学院天津300071 南开大学生物活性材料教育部重点实验室天津300071 日本东北大学大学院药学研究科仙台9808578

利用石英晶体微天平实时监测低密度脂蛋白(LDL)在胆固醇修饰葡聚糖(CMD)上的吸附,并对其吸附动力学进行研究.结果表明,CMD与LDL之间的相互作用符合Langmuir吸附方程,当LDL浓度(ng/μL)为9.9,12.38和14.14时,其吸附平衡常数[K/(mol·L-1... 详细信息

利用石英晶体微天平实时监测低密度脂蛋白(LDL)在胆固醇修饰葡聚糖(CMD)上的吸附,并对其吸附动力学进行研究.结果表明,CMD与LDL之间的相互作用符合Langmuir吸附方程,当LDL浓度(ng/μL)为9.9,12.38和14.14时,其吸附平衡常数[K/(mol·L-1·s-1)]分别为0.0477,0.0536和0.0628,表面吸附量(ng/cm2)分别为107.6,139.6和167.9.最大吸附量达到284.8ng/cm2,吸附率为72.91%.

关键词：石英晶体微天平胆固醇修饰葡聚糖低密度脂蛋白吸附

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