26 条结果 关键词:多壁碳纳米管 ×

Amperometric glucose biosensor based on glucose oxidase dispersed in multiwalled carbon nanotubes/graphene oxide hybrid biocomposite.

Materials science & engineering. C, Materials for biological applications 2014 Palanisamy S, Cheemalapati S, Chen SM

本文报道了一种基于葡萄糖氧化酶(GOx)分散于多壁碳纳米管/氧化石墨烯(MWCNT/GO)杂化生物复合物的安培葡萄糖生物传感器。所制备的杂化生物复合物经透射电镜(TEM)、拉曼光谱和红外光谱(IR)表征。TEM 图像显示,GOx 以薄层覆盖在 MWCNT/GO 杂化复合物表面;IR 结果证实杂化生物复合物通过 GOx 与 MWCNT...

Direct electrochemistry of myoglobin at reduced graphene oxide-multiwalled carbon nanotubes-platinum nanoparticles nanocomposite and biosensing towards hydrogen peroxide and nitrite.

Biosensors & bioelectronics 2014 Mani V, Dinesh B, Chen SM, Saraswathi R

本文报道了一种新型纳米生物复合材料还原氧化石墨烯-多壁碳纳米管-铂纳米粒子/肌红蛋白(RGO-MWCNT-Pt/Mb)的制备,用于肌红蛋白(Mb)的直接电化学及其对过氧化氢(H2O2)和亚硝酸根(NO2-)的检测。RGO-MWCNT-Pt 纳米复合材料通过简单溶液法制备并进行了结构表征。RGO-MWCNT-Pt/Mb 纳米生物复合材...

Continuous monitoring of Naproxen by a cytochrome P450-based electrochemical sensor.

Biosensors & bioelectronics 2014 Baj-Rossi C, Rezzonico Jost T, Cavallini A, Grassi F 等 6 人

本文报道了一种基于细胞色素P450的电化学生物传感器,用于连续监测萘普生(Naproxen, NAP)。该传感器通过将多壁碳纳米管(MWCNTs)和微粒体细胞色素P450 1A2(msCYP1A2)滴涂在石墨丝网印刷电极(SPE)表面构建。采用循环伏安法检测NAP,其安培检测动态线性范围上限为300 mM,对应检出限(LOD)为16...

Design of a multiwalled carbon nanotube-Nafion-cysteamine modified tyrosinase biosensor and its adaptation of dopamine determination.

Analytical biochemistry 2014 Canbay E, Akyilmaz E

本研究构建了一种多壁碳纳米管(MWCNT)–Nafion–半胱胺(CA)修饰的酪氨酸酶电化学生物传感器,用于多巴胺(DA)检测。该传感器在0.2 V下采用恒电位安培法测定多巴胺,并在0.4至−0.15 V范围内采用差分脉冲伏安法(DPV)进行检测。研究优化了最佳pH、温度、酶用量及MWCNT浓度等参数,并考察了线性范围和重现性。在1...

Direct electron transfer of glucose oxidase and biosensing for glucose based on PDDA-capped gold nanoparticle modified graphene/multi-walled carbon nanotubes electrode.

Biosensors & bioelectronics 2014 Yu Y, Chen Z, He S, Zhang B 等 6 人

本文制备了聚二烯丙基二甲基氯化铵(PDDA)包覆金纳米粒子(AuNPs)功能化的石墨烯(G)/多壁碳纳米管(MWCNTs)纳米复合材料。基于静电吸引,G/MWCNTs 杂化材料可均匀、致密地修饰 AuNPs,形成具有更大比表面积和更利于电子转移微环境的分级纳米结构。该 AuNPs/G/MWCNTs 复合材料被用作葡萄糖氧化酶(GOD...

Co-immobilization of glucoamylase and glucose oxidase for electrochemical sequential enzyme electrode for starch biosensor and biofuel cell.

Biosensors & bioelectronics 2014 Lang Q, Yin L, Shi J, Li L 等 6 人

本文通过化学交联法将糖化酶(GA)和葡萄糖氧化酶(GOD)共固定于多壁碳纳米管(MWNTs)修饰的玻璃碳电极(GCE)上,其中戊二醛用作交联剂,牛血清白蛋白(BSA)用作封闭剂,构建了新型电化学顺序酶生物传感器 GA/GOD/MWNTs/GCE。该传感器无需 Clark 型氧传感器或 H2O2 传感器即可测定淀粉:GA 先将淀粉水解...