Ultrasound-promoted covalent functionalization of CNFs with thermo-sensitive PNIPAM via "grafting-from" strategy for on/off switchable electrochemical determination of clothianidin.
作者： Bhuvanenthiran Mutharani , Palraj Ranganathan , Shen-Ming Chen , Ramaraj Sayee Kannan , None
DOI: 10.1016/J.ULTSONCH.2019.04.026
关键词:
摘要: Abstract A thermo-sensitive poly (N-isopropylacrylamide) covalently grafted carbon nanofibers (CNFs-g-PNIPAM) was designed and synthesized via ultrasonic “grafting-from” strategy for the first time. CNFs-g-PNIPAM could well perform reversible regulation of hydrophilic/hydrophobic states in aqueous solution upon switching temperature signal. Such distinctive property, modified glassy electrode (CNFs-g-PNIPAM/GC electrode) shows “on/off” switchability temperature-tunable electrocatalytic activity towards clothianidin (CLD) that can be stimulated by external temperature. Cyclic voltammetry CLD at CNFs-g-PNIPAM/GC displayed higher peak current 25 °C showing “on” state; 40 °C, significantly suppressed, “off” state. The reveal better electrochemical performance ‘on/off’ effect compared to virgin PNIPAM, due large surface area, good electron-transfer, an intrinsic property introduced CNFs. Moreover, this switchable sensing platform allows determining a sensitivity (2.32 µA µM−1 cm−2) with low detection limit (LOD) 0.03 µM 40 °C (LOD = 1.3 µM). Besides, method successfully applied determination spiked apple extract lake water samples. may greatly enhance flexibility its application area sensor electrocatalysis.
sci-hub.se 参考文章(37)
Sergiy Minko, Grafting on Solid Surfaces: “Grafting to” and “Grafting from” Methods Springer, Berlin, Heidelberg. pp. 215- 234 ,(2008) , 10.1007/978-3-540-73865-7_11
Nor Saadah Mohd Yusof, Bandar Babgi, Yousef Alghamdi, Mecit Aksu, Jagannathan Madhavan, Muthupandian Ashokkumar, Physical and chemical effects of acoustic cavitation in selected ultrasonic cleaning applications Ultrasonics Sonochemistry. ,vol. 29, pp. 568- 576 ,(2016) , 10.1016/J.ULTSONCH.2015.06.013
Jun Wang, Yuehe Lin, Functionalized carbon nanotubes and nanofibers for biosensing applications. Trends in Analytical Chemistry. ,vol. 27, pp. 619- 626 ,(2008) , 10.1016/J.TRAC.2008.05.009
Jun Dong, Jian Weng, Lizong Dai, The effect of graphene on the lower critical solution temperature of poly(N-isopropylacrylamide) Carbon. ,vol. 52, pp. 326- 336 ,(2013) , 10.1016/J.CARBON.2012.09.034
Guoyong Xu, Wei-Tai Wu, Yusong Wang, Wenmin Pang, Pinghua Wang, Qingren Zhu, Fei Lu, Synthesis and characterization of water-soluble multiwalled carbon nanotubes grafted by a thermoresponsive polymer Nanotechnology. ,vol. 17, pp. 2458- 2465 ,(2006) , 10.1088/0957-4484/17/10/005
J. Squella, S. Bollo, L. Nunez-Vergara, Recent Developments in the Electrochemistry of Some Nitro Compounds of Biological Significance Current Organic Chemistry. ,vol. 9, pp. 565- 581 ,(2005) , 10.2174/1385272053544380
Yu Lin Hsin, Kuo Chu Hwang, Chuin-Tih Yeh, Poly(vinylpyrrolidone)-modified graphite carbon nanofibers as promising supports for PtRu catalysts in direct methanol fuel cells. Journal of the American Chemical Society. ,vol. 129, pp. 9999- 10010 ,(2007) , 10.1021/JA072367A
Dariusz Guziejewski, Sławomira Skrzypek, Adam Łuczak, Witold Ciesielski, Cathodic stripping voltammetry of clothianidin: Application to environmental studies Collection of Czechoslovak Chemical Communications. ,vol. 76, pp. 131- 142 ,(2011) , 10.1135/CCCC2010116
Boon M. Teo, Stuart W. Prescott, Gareth J. Price, Franz Grieser, Muthupandian Ashokkumar, Synthesis of Temperature Responsive Poly(N-isopropylacrylamide) Using Ultrasound Irradiation Journal of Physical Chemistry B. ,vol. 114, pp. 3178- 3184 ,(2010) , 10.1021/JP9114817
Dariusz Guziejewski, Sławomira Skrzypek, Witold Ciesielski, Application of Catalytic Hydrogen Evolution in the Presence of Neonicotinoid Insecticide Clothianidin Food Analytical Methods. ,vol. 5, pp. 373- 380 ,(2012) , 10.1007/S12161-011-9253-X