Enhanced Electrochemical Sensing with Carbon Nanotubes Modified with Bismuth and Magnetic Nanoparticles in a Lab-on-a-Chip.
Enhanced Electrochemical Sensing with Carbon Nanotubes Modified with Bismuth and Magnetic Nanoparticles in a Lab-on-a-Chip.
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在实验室片中用二晶和磁性纳米颗粒修饰的碳纳米管增强了电化学感测。
DOI：
10.1002/cnma.201600174
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发表时间：
2016-09
期刊：
影响因子：
--
通讯作者：
Nicolls MR
中科院分区：
文献类型：
--
作者：
Jothimuthu P;Hsu JL;Chen R;Inayathullah M;Pothineni VR;Jan A;Gurtner GC;Rajadas J;Nicolls MR
铁在人体生理功能和病理损伤中发挥着尤为重要的作用。本工作中开发的碳纳米管（CNT）的优越性能及其用铋和磁性纳米颗粒进行的修饰，形成了一种非凡的新颖材料，可促进纳摩尔范围内的超灵敏检测。在这里，我们开发了一种电化学传感器，通过用铋和磁性纳米粒子修饰的碳纳米管来检测二价铁 (Fe2+) 和三价铁 (Fe3+)，以实现更高的检测灵敏度。传感器制造包括微加工方法、软光刻和电沉积。循环伏安法和差分脉冲伏安法用于样品中离子的电分析研究和检测。该传感器的动态检测范围为 0.01 nm 至 10 mm。探索了改性碳纳米管传感器的灵敏度和特异性。通过电沉积的方式用铋和磁性纳米粒子修饰的碳纳米管，将检测限显着提高至 0.01 nm。
Iron plays an especially important role in human physiological functions and pathological impairments. The superior properties of carbon nanotubes (CNTs) and their modification with bismuth and magnetic nanoparticles as developed in this work have led to an extraordinary and novel material to facilitate ultrasensitive detection in the nanomolar range. Here, we present the development of an electrochemical sensor for detection of ferrous (Fe2+) and ferric (Fe3+) iron by means of CNTs modified with bismuth and magnetic nanoparticles for higher sensitivity of detection. The sensor fabrication includes microfabrication methodologies, soft lithography, and electrodeposition. Cyclic voltammetry and differential pulse voltammetry are used for the electroanalytical studies and detection of the ions in samples. The sensor has a dynamic range of detection from 0.01 nm to 10 mm. The performance of the sensor with modified CNTs was explored for sensitivity and specificity. CNTs, modified with bismuth and magnetic nanoparticles by means of electrodeposition, enhanced the detection limit significantly down to 0.01 nm.
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影响因子：
3
作者：
Jothimuthu, Preetha;Wilson, Robert A.;Herren, Josi;Pei, Xing;Kang, Wenjing;Daniels, Rodney;Wong, Hector;Beyette, Fred;Heineman, William R.;Papautsky, Ian
通讯作者：
Papautsky, Ian
影响因子：
8.4
作者：
Adekunle, Abolanle S.;Agboola, Bolade O.;Ozoemena, Kenneth I.
通讯作者：
Ozoemena, Kenneth I.
影响因子：
2.8
作者：
Jothimuthu, Preetha;Wilson, Robert A.;Herren, Josi;Haynes, Erin N.;Heineman, William R.;Papautsky, Ian
通讯作者：
Papautsky, Ian
DOI：
10.1067/mlc.2000.106456
发表时间：
2000-05-01
期刊：
JOURNAL OF LABORATORY AND CLINICAL MEDICINE
影响因子：
--
作者：
Nielsen, P;Günther, U;Düllmann, J
通讯作者：
Düllmann, J
影响因子：
6.2
作者：
ABOLLINO, O;ACETO, M;MENTASTI, E
通讯作者：
MENTASTI, E