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G Jayanthi K, S K S. Cholesterol oxidase immobilized inulin based nanocomposite as the sensing material for cholesterol in biological and food samples. Enzyme Microb Technol 2020; 140:109631. [PMID: 32912691 DOI: 10.1016/j.enzmictec.2020.109631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/07/2020] [Accepted: 07/07/2020] [Indexed: 01/16/2023]
Abstract
In the present study, inulin based nanocomposite viz., TiO2-MWCNT@Inulin was prepared by embedding Inulin (a biopolymer extracted from Allium sativum L.) with TiO2 and MWCNTs. The morphology of the prepared nanocomposite was characterized by High Resolution transmission electron microscopy (HRTEM). Cholesterol oxidase (ChOx) enzyme was then immobilized into the nanocomposite and the immobilization was examined by UV-vis and FT-IR spectral studies. The ChOx immobilized nanocomposite was integrated into carbon paste (CP) matrix to prepare the working electrode for the sensing of cholesterol. Electrochemical characterization of the modified CP/TiO2-MWCNT@Inulin/ChOx electrode was done by cyclic voltammetric (CV) and electrochemical impedance spectroscopic (EIS) studies. Differential pulse voltammetric (DPV) studies were carried out to determine the concentration of cholesterol at the interface of the newly fabricated electrode. The fabricated electrode demonstrated a linear range from 83 μM to 14.28 mM, low limit of detection (35 μM), good sensitivity (21.26 μA mM-1 cm-2), low Km (0.49 mM), high stability (120 days) and good selectivity. The presence of Inulin biopolymer played a vital role in attaching ChOx enzyme firmly to the nanocomposite thereby enhancing the stability and electron transfer efficiency of the electrode. The analysis of product that was formed within the electrochemical cell during the electrochemical oxidation of cholesterol was performed by using sodium nitroprusside. This resulted in a deep purple coloured solution which suggested the electrochemical conversion of cholesterol to cholestenone. The practical applicability of the fabricated electrode was also assessed by the determination of cholesterol in spiked blood serum and milk samples.
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Affiliation(s)
| | - Suja S K
- Department of Chemistry, Lady Doak College, Madurai, India.
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2
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Pramanik K, Sarkar P, Bhattacharyay D, Majumdar P. One Step Electrode Fabrication for Direct Electron Transfer Cholesterol Biosensor Based on Composite of Polypyrrole, Green Reduced Graphene Oxide and Cholesterol Oxidase. ELECTROANAL 2018. [DOI: 10.1002/elan.201800318] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Krishnendu Pramanik
- Biosensor Laboratory, Department of Polymer Science and Technology; University of Calcutta; 92 A.P.C. Road Kolkata, West Bengal India 70009
- Department of Chemical Engineering; Calcutta Institute of Technology; Banitabla, Howrah, West Bengal India 711316
| | - Priyabrata Sarkar
- Biosensor Laboratory, Department of Polymer Science and Technology; University of Calcutta; 92 A.P.C. Road Kolkata, West Bengal India 70009
- Department of Chemical Engineering; Calcutta Institute of Technology; Banitabla, Howrah, West Bengal India 711316
| | - Dipankar Bhattacharyay
- Biosensor Laboratory, Department of Polymer Science and Technology; University of Calcutta; 92 A.P.C. Road Kolkata, West Bengal India 70009
- Department of Chemical Engineering; Calcutta Institute of Technology; Banitabla, Howrah, West Bengal India 711316
| | - Pavel Majumdar
- Centre of Excellence for Green Energy and Sensor Systems (CEGESS); Indian Institute of Engineering Science and Technology (IIEST); Shibpur, Howrah, West Bengal India 711103
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Sharma D, Lee J, Seo J, Shin H. Development of a Sensitive Electrochemical Enzymatic Reaction-Based Cholesterol Biosensor Using Nano-Sized Carbon Interdigitated Electrodes Decorated with Gold Nanoparticles. SENSORS 2017; 17:s17092128. [PMID: 28914766 PMCID: PMC5621016 DOI: 10.3390/s17092128] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/08/2017] [Accepted: 09/14/2017] [Indexed: 01/11/2023]
Abstract
We developed a versatile and highly sensitive biosensor platform. The platform is based on electrochemical-enzymatic redox cycling induced by selective enzyme immobilization on nano-sized carbon interdigitated electrodes (IDEs) decorated with gold nanoparticles (AuNPs). Without resorting to sophisticated nanofabrication technologies, we used batch wafer-level carbon microelectromechanical systems (C-MEMS) processes to fabricate 3D carbon IDEs reproducibly, simply, and cost effectively. In addition, AuNPs were selectively electrodeposited on specific carbon nanoelectrodes; the high surface-to-volume ratio and fast electron transfer ability of AuNPs enhanced the electrochemical signal across these carbon IDEs. Gold nanoparticle characteristics such as size and morphology were reproducibly controlled by modulating the step-potential and time period in the electrodeposition processes. To detect cholesterol selectively using AuNP/carbon IDEs, cholesterol oxidase (ChOx) was selectively immobilized via the electrochemical reduction of the diazonium cation. The sensitivity of the AuNP/carbon IDE-based biosensor was ensured by efficient amplification of the redox mediators, ferricyanide and ferrocyanide, between selectively immobilized enzyme sites and both of the combs of AuNP/carbon IDEs. The presented AuNP/carbon IDE-based cholesterol biosensor exhibited a wide sensing range (0.005–10 mM) and high sensitivity (~993.91 µA mM−1 cm−2; limit of detection (LOD) ~1.28 µM). In addition, the proposed cholesterol biosensor was found to be highly selective for the cholesterol detection.
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Affiliation(s)
- Deepti Sharma
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
| | - Jongmin Lee
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
| | - Junyoung Seo
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
| | - Heungjoo Shin
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
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Bolat EÖ, Tığ GA, Pekyardımcı Ş. Fabrication of an amperometric acetylcholine esterase-choline oxidase biosensor based on MWCNTs-Fe 3 O 4 NPs-CS nanocomposite for determination of acetylcholine. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2016.12.041] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Xu S, Wang Y, Zhou D, Kuang M, Fang D, Yang W, Wei S, Ma L. A novel chemiluminescence sensor for sensitive detection of cholesterol based on the peroxidase-like activity of copper nanoclusters. Sci Rep 2016; 6:39157. [PMID: 27966650 PMCID: PMC5155213 DOI: 10.1038/srep39157] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 11/18/2016] [Indexed: 11/09/2022] Open
Abstract
A sensitive and selective chemiluminescence (CL) sensor based on the peroxidase-like activity of copper nanoclusters was established for the detection of cholesterol. Copper nanoclusters catalyse the CL reaction between luminol and H2O2. Because H2O2 is the oxidative product of cholesterol in the presence of cholesterol oxidase, the oxidation of cholesterol can be quantitatively converted to a CL response by combining the two reactions. The proposed method is simple and can be completed in a few minutes with high sensitivity. Under the optimal conditions, the CL intensity was proportional to the concentration of cholesterol over a wide range of 0.05-10 mM, with a detection limit of 1.5 μM. Furthermore, the method was successfully applied to determine cholesterol in milk powder and human serum with satisfactory accuracy and precision. This method expands the applications of nano-mimic enzymes in the field of CL-based sensors.
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Affiliation(s)
- Shuangjiao Xu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Yanqin Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Dayun Zhou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Meng Kuang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Dan Fang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Weihua Yang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Shoujun Wei
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
| | - Lei Ma
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang 455000, China
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6
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Fabrication of a novel dual mode cholesterol biosensor using titanium dioxide nanowire bridged 3D graphene nanostacks. Biosens Bioelectron 2016; 84:64-71. [DOI: 10.1016/j.bios.2015.11.042] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/06/2015] [Accepted: 11/14/2015] [Indexed: 12/30/2022]
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7
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Synthesis of one-dimensional gold nanostructures and the electrochemical application of the nanohybrid containing functionalized graphene oxide for cholesterol biosensing. Bioelectrochemistry 2016; 110:79-90. [DOI: 10.1016/j.bioelechem.2016.03.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 03/25/2016] [Accepted: 03/26/2016] [Indexed: 01/04/2023]
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8
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Wu S, Chen J, Liu D, Zhuang Q, Pei Q, Xia L, Zhang Q, Kikuchi JI, Hisaeda Y, Song XM. A biocompatible cerasome based platform for direct electrochemistry of cholesterol oxidase and cholesterol sensing. RSC Adv 2016. [DOI: 10.1039/c6ra06368c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An electrochemical platform composed of a biocompatible cerasome and cholesterol oxidase for cholesterol sensing.
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Wu S, Wang Y, Mao H, Wang C, Xia L, Zhang Y, Ge H, Song XM. Direct electrochemistry of cholesterol oxidase and biosensing of cholesterol based on PSS/polymeric ionic liquid–graphene nanocomposite. RSC Adv 2016. [DOI: 10.1039/c6ra06073k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, a new biosensor based on PSS/polymeric ionic liquids–graphene nanocomposite with excellent conductivity, favourable biocompatibility and good film-forming properties was constructed to detect cholesterol.
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Affiliation(s)
- Shuyao Wu
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Yuxiang Wang
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Hui Mao
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Chong Wang
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Lixin Xia
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Yu Zhang
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Hao Ge
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Xi-Ming Song
- Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
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Amplified solid-state electrochemiluminescence detection of cholesterol in near-infrared range based on CdTe quantum dots decorated multiwalled carbon nanotubes@reduced graphene oxide nanoribbons. Biosens Bioelectron 2015; 73:221-227. [DOI: 10.1016/j.bios.2015.06.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/21/2015] [Accepted: 06/02/2015] [Indexed: 12/28/2022]
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11
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Microplate based optical biosensor for l-Dopa using tyrosinase from Amorphophallus campanulatus. Anal Chim Acta 2014; 849:50-6. [DOI: 10.1016/j.aca.2014.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/10/2014] [Indexed: 11/21/2022]
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12
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Modification of well-aligned carbon nanotubes with dihexadecyl hydrogen phosphate: application to highly sensitive nanomolar detection of simvastatin. J APPL ELECTROCHEM 2013. [DOI: 10.1007/s10800-013-0654-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Wu X, Chai Y, Yuan R, Chen S, Zhang M, Zhang J. Hemin Functionalized Multiwalled Carbon Nanotubes as a Matrix for Sensitive Electrogenerated Chemiluminescence Cholesterol Biosensor. ELECTROANAL 2013. [DOI: 10.1002/elan.201300311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Li Y, Chen SM, Yang CY, Ajmal Ali M, Alhemaid FMA. Bionanotechnology approach for FAD-dependent enzymes with nanomaterials sensor. Saudi J Biol Sci 2013; 19:465-71. [PMID: 23961208 DOI: 10.1016/j.sjbs.2012.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Revised: 06/29/2012] [Accepted: 07/04/2012] [Indexed: 11/30/2022] Open
Abstract
We have reported the modification of biomolecule with nanomaterials. In this paper, the electrochemical response of different FAD-dependent enzymes at carbon nanomaterials modified electrode. The modified electrode also exhibits a promising enhanced electrocatalytic activity toward the oxidation of substrate. Different methods were used for fabrication of modified electrode. The presence of nanomaterials enhances the enzyme loading and stability. Cyclic voltammograms (CVs) were used for the determination of substrate and the apparent coefficient values for these compounds at different electrodes. Finally, we have studied the surface morphology of the modified electrode using scanning electron microscopy (SEM), which revealed that enzyme is coated on nanomaterials.
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Affiliation(s)
- Ying Li
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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15
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Cao S, Zhang L, Chai Y, Yuan R. Electrochemistry of cholesterol biosensor based on a novel Pt–Pd bimetallic nanoparticle decorated graphene catalyst. Talanta 2013; 109:167-72. [DOI: 10.1016/j.talanta.2013.02.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 01/30/2013] [Accepted: 02/01/2013] [Indexed: 11/29/2022]
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16
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Zhu L, Xu L, Tan L, Tan H, Yang S, Yao S. Direct electrochemistry of cholesterol oxidase immobilized on gold nanoparticles-decorated multiwalled carbon nanotubes and cholesterol sensing. Talanta 2013; 106:192-9. [DOI: 10.1016/j.talanta.2012.12.036] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 12/20/2012] [Accepted: 12/21/2012] [Indexed: 11/27/2022]
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17
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Zhang M, Yuan R, Chai Y, Wang C, Wu X. Cerium oxide-graphene as the matrix for cholesterol sensor. Anal Biochem 2013; 436:69-74. [PMID: 23380308 DOI: 10.1016/j.ab.2013.01.022] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 01/15/2013] [Accepted: 01/22/2013] [Indexed: 11/19/2022]
Abstract
A simple and sensitive electrogenerated chemiluminescence (ECL) cholesterol biosensor was prepared based on cerium oxide-graphene (CeO(2)-graphene) composites as an efficient matrix. CeO(2)-graphene composites were prepared by depositing CeO(2) onto graphene and were characterized by scanning electron microscopy. The experimental results demonstrated that CeO(2)-graphene could catalyze the ECL of a luminol-H(2)O(2) (hydrogen peroxide) system to amplify the luminol ECL signal greatly. In addition, the use of CeO(2)-graphene provided a better biocompatible microenvironment for the immobilized enzyme, resulting in excellent stability and a long lifetime of the ECL biosensor. The surface assembly process, ECL behaviors, and electrochemistry of the biosensor were investigated in detail. The quantity of cholesterol was in the linear range from 12 μM to 7.2 mM with a detection limit of 4.0 μM (signal/noise = 3). In addition, the biosensor exhibited outstanding reproducibility, long-term stability, and selectivity. Moreover, this cholesterol biosensor offers an alternative analytical method with low cost and high speed.
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Affiliation(s)
- Meihe Zhang
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China
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Manjunatha R, Shivappa Suresh G, Savio Melo J, D'Souza SF, Venkatarangaiah Venkatesha T. An amperometric bienzymatic cholesterol biosensor based on functionalized graphene modified electrode and its electrocatalytic activity towards total cholesterol determination. Talanta 2012; 99:302-9. [DOI: 10.1016/j.talanta.2012.05.056] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 05/24/2012] [Accepted: 05/25/2012] [Indexed: 11/16/2022]
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19
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Highly-sensitive cholesterol biosensor based on platinum–gold hybrid functionalized ZnO nanorods. Talanta 2012; 94:263-70. [DOI: 10.1016/j.talanta.2012.03.037] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 03/20/2012] [Accepted: 03/22/2012] [Indexed: 11/23/2022]
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20
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Zhang H, Liu R, Zheng J. Selective determination of cholesterol based on cholesterol oxidase-alkaline phosphatase bienzyme electrode. Analyst 2012; 137:5363-7. [DOI: 10.1039/c2an36075f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Karimpil JJ, Melo JS, D'Souza SF. Immobilization of lipase on cotton cloth using the layer-by-layer self-assembly technique. Int J Biol Macromol 2011; 50:300-2. [PMID: 22062119 DOI: 10.1016/j.ijbiomac.2011.10.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 10/17/2011] [Accepted: 10/22/2011] [Indexed: 11/28/2022]
Abstract
Lipase from Thermomyces lanuginosus was assembled into multiple layers on polyethylenimine treated cotton flannel cloth, utilising the enzymes property of forming bimolecular aggregates via layer-by-layer (LBL) immobilization technique. An increase in lipase activity with increasing enzyme layers confirmed lipase aggregation. A study to compare the activity of enzyme bound by classical LBL technique, containing alternate layers of polyethylenimine and lipase and the modified approach indicated above, showed that more enzyme was bound to cloth in the modified approach. A total of 13 U/cm(2) of enzyme were bound to cloth till the fifth layer whereas only 10.2 U/cm(2) were bound till the fifth bilayer in the classical approach. The successful assembly of lipase molecules has shown that this modified technique is a promising approach to immobilize enzymes that aggregate through hydrophobic interactions as nano-films on cloth.
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Affiliation(s)
- Joceline J Karimpil
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
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Eguílaz M, Villalonga R, Agüí L, Yáñez-Sedeño P, Pingarrón J. Gold nanoparticles: Poly(diallyldimethylammonium chloride)–carbon nanotubes composites as platforms for the preparation of electrochemical enzyme biosensors: Application to the determination of cholesterol. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.07.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Eguílaz M, Villalonga R, Yáñez-Sedeño P, Pingarrón JM. Designing Electrochemical Interfaces with Functionalized Magnetic Nanoparticles and Wrapped Carbon Nanotubes as Platforms for the Construction of High-Performance Bienzyme Biosensors. Anal Chem 2011; 83:7807-14. [DOI: 10.1021/ac201466m] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marcos Eguílaz
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
| | - Reynaldo Villalonga
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
| | - Paloma Yáñez-Sedeño
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
| | - José M. Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
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Electrochemical detection of acetaminophen on the functionalized MWCNTs modified electrode using layer-by-layer technique. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.05.018] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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