金属酞菁化合物在TiO2表面的分散研究

Dispersion of copper(Ⅱ) phthalocyanine (CuPc), copper(Ⅱ) phthalocyaninesulfonate (CuPcS) and cobalt(Ⅱ)phthalocyaninetetrasulfonate (CoPcTS) on the surface of titanium dioxide was investigated by XRD, XPS, FT-IR and UV-Vis techniques. Results show that interaction between CuPc and TiO2 was very weak and CuPc was difficult to disperse on the surface of the support. While partly sulfurized CuPcS could be dispersed on the surface of support through sulfo-groups and its dispersion capacity was determined to be 0.085 g CuPcS/g TiO2. Completely sulfurlzed CoPcTS could also be dispersed on the surface of TiO2 as a monolayer and its dispersion capacity was 0.12 g CoPcTS/g TiO2. Interactions of the sulfo-groups as well as the electrons of CoPcTS with the surface of TiO2 could be evidenced by FT-IR characterization. Therefore, it was suggested that CoPcTS molecules be adsorbed on the surface of TiO2 in a flat-lying mode while CuPcS in a slanting one. UV-Vis spectra show that the dispersed CuPcS and CoPcTS molecules exist in both forms of monomers and dimers.     

N—（3—二茂铁乙酰胺基）丙基吡咯聚合物修饰的葡萄糖电极的研究

于铂电极上修饰一层Ｎ－（３－二茂铁乙酰胺基）丙基吡咯聚合物膜，应用循环伏安法对聚合物的电化学性能进行研究，发现了Ｎ－位取代吡咯聚合物的电活性大大降低，聚合物中 二茂铁基团氧化还原性能稳定，制成酶电极后，在＋０．２Ｖ以葡萄糖有一明显的催化峰，而对抗坏血酸，尿酸则几乎没有呼应，该葡萄糖电极性能稳定，连续工作十天，响应值基本不变。     

DrugFET的研究（Ⅳ）.硅钨酸—麻黄碱FET的研制与应用

将离子敏感场效应晶体管与药物敏感膜相结合研制成一种对盐酸麻黄碱有良好响应的药物敏感场效应晶体管传感器。     

纳米氧化锌的乳液合成、结构表征与气敏性能

利用化学沉淀法、乳液法及微乳液法合成了不同晶粒尺寸的纳米氧化锌气敏材料；用X射线衍射和透射电镜、研究了材料的晶体结构和陶瓷微结构，并利用科西-科西法和德拜-谢乐法计算了材料的平均晶粒度和晶格畸变；和静态配气法测试了材料对乙醇、汽油、氢气、丁烷、六氟化硫的气体灵敏度。实验结果表明：微乳液法和阴离子表面活性剂乳化法合成的氧化锌具有颗粒小，气体灵敏度高和工作温度低的特点。     

Studies on Interactions of Antibiotics with Serum Albumin by Surface Plasmon Resonance Biosensor

Introduction Humanserumalbumin(HSA)isawell known transportproteinforavarietyofmoleculesandions[1].Thebindingofadrugtoserumalbuminhasimportant pharmacokineticconsequencesbecauseitinfluences distribution,excretionandpharmacologicaleffectsof thedruginthebody…     

第十届世界生物传感器大会Biosensors2008暨纳米生物传感器国际专题研讨会

第十届世界生物传感器大会Biosensors2008暨纳米生物传感器国际专题研讨会将于2008年5月13~16日在上海召开。摘要截止日期:2007年10月30日。世界生物传感器大会(The World Congress on Biosensors)是规模和影响最大,内容最广泛的生物传感器学术会议,每两年举办一次。第十届世界     

用于测量农药残留的小麦酯酶的选择

为研制探测农药残留的生物传感器，研究了农药乐果[O,O-二甲基S－（N－甲基胺基甲酰甲戎）二硫代磷酸酯]对各种小麦植物酯酶的抑制，从小麦中提取植物酶，以农药乐果为抑制剂，采用分光光度法研究了乐果对各种小麦酯酶活性的影响；研究显示，不同品种小麦酯酶对农药乐果的敏感度不同，在所研究的品种中，豫麦39和小麦周9对乐果较敏感，研究结果说明了选择小麦酶源的必要性。     

聚乙烯醇缩丁醛膜涂丝酶电极构造方法的研究

本文以三月桂胺为中性载体制成聚乙烯醇缩丁醛膜涂丝pH电极,再以该pH电极为换能器,采用三种共价交联固定化酶方法制成涂丝乙酰胆碱酯酶电极。该酶电极能用于测定0.1～10mmol/L浓度范围内的乙酰胆碱,响应时间在3～6min之内,寿命可达两个多月。     

Formation of SnO2 Nanoparticles on External Surface of NaY Zeolite

Tin dioxide nanoparticles of 5 nm in size were prepared on NaY zeolite external surface by impregnation of SnCl2 solution and subsequent calcination at 623 K. A SnO2-NaY based chemical sensor for detecting H2 was demonstrated.