1
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Kaur S, Shalini, Ahmad Shiekh B, Kumar V, Kaur I. Triazole-tethered naphthalimide-ferrocenyl-chalcone based voltammetric and potentiometric sensors for selective electrochemical quantification of Copper(II) ions. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Silina YE, Apushkinskaya N, Talagaeva NV, Levchenko MG, Zolotukhina EV. Electrochemical operational principles and analytical performance of Pd-based amperometric nanobiosensors. Analyst 2021; 146:4873-4882. [PMID: 34232236 DOI: 10.1039/d1an00882j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium nanoparticles (Pd-NPs) have been approved as an effective catalyst for hydrogen peroxide decomposition which is released during specific enzymatic reactions. However, the general operational principles and electrochemical performance of Pd-NPs-based nanobiosensors have been poorly exploited. Here, the electrochemical behavior of oxidase-associated peroxide oxidation co-catalysis of the modelled microanalytical system based on screen-printed electrodes modified by electroplated Pd-NPs as an electrocatalyst, glucose oxidase (GOx) or alcohol oxidase (AOx) as a bioreceptor and the ionomer Nafion as a polymeric binding agent was studied in detail. The impact of palladium surface oxides and adsorbed oxygen on the activity and product selectivity in an oxidase type of nanobiosensor was ascertained. To avoid PdO and oxygen electroreduction affecting the entire amperometric response of Pd-NPs-based nanobiosensors, a special two-step polarization procedure was proposed. Under the established electrochemical conditions, Pd-NPs-based nanobiosensors with encapsulated oxidases showed a wide dynamic range towards selective bioanalyte detection, excellent basic line stability, accuracy and resistance to the presence of interfering electrochemical species. This work can serve as a guideline for the search and validation of operational principles of novel biosensors based on nanoparticles.
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Affiliation(s)
- Y E Silina
- Institute for Biochemistry, Zentrum für Human und Molekularbiologie (ZHMB), Campus B 2.2, University of Saarland, 66123, Saarbrücken, Germany.
| | - N Apushkinskaya
- Institute for Biochemistry, Zentrum für Human und Molekularbiologie (ZHMB), Campus B 2.2, University of Saarland, 66123, Saarbrücken, Germany.
| | - N V Talagaeva
- Institute of Problems of Chemical Physics RAS, 1 Ac. Semenov avenue, Chernogolovka, 142432, Moscow region, Russia.
| | - M G Levchenko
- Institute of Problems of Chemical Physics RAS, 1 Ac. Semenov avenue, Chernogolovka, 142432, Moscow region, Russia.
| | - E V Zolotukhina
- Institute of Problems of Chemical Physics RAS, 1 Ac. Semenov avenue, Chernogolovka, 142432, Moscow region, Russia. and Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, 141700, Moscow region, Russia
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3
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Quintero-Jaime AF, Conzuelo F, Cazorla-Amorós D, Morallón E. Pyrroloquinoline quinone-dependent glucose dehydrogenase bioelectrodes based on one-step electrochemical entrapment over single-wall carbon nanotubes. Talanta 2021; 232:122386. [PMID: 34074388 DOI: 10.1016/j.talanta.2021.122386] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 11/25/2022]
Abstract
Development of effective direct electron transfer is considered an interesting platform to obtain high performance bioelectrodes. Therefore, designing of scalable and cost-effective immobilization routes that promotes correct direct electrical contacting between the electrode material and the redox enzyme is still required. As we present here, electrochemical entrapment of pyrroloquinoline quinone-dependent glucose dehydrogenase (PQQ-GDH) on single-wall carbon nanotube (SWCNT)-modified electrodes was carried out in a single step during electrooxidation of para-aminophenyl phosphonic acid (4-APPA) to obtain active bioelectrodes. The adequate interaction between SWCNTs and the enzyme can be achieved by making use of phosphorus groups introduced during the electrochemical co-deposition of films, improving the electrocatalytic activity towards glucose oxidation. Two different procedures were investigated for electrode fabrication, namely the entrapment of reconstituted holoenzyme (PQQ-GDH) and the entrapment of apoenzyme (apo-GDH) followed by subsequent in situ reconstitution with the redox cofactor PQQ. In both cases, PQQ-GDH preserves its electrocatalytic activity towards glucose oxidation. Moreover, in comparison with a conventional drop-casting method, an important enhancement in sensitivity was obtained for glucose oxidation (981.7 ± 3.5 nA mM-1) using substantially lower amounts of enzyme and cofactor (PQQ). The single step electrochemical entrapment in presence of 4-APPA provides a simple method for the fabrication of enzymatic bioelectrodes.
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Affiliation(s)
- Andrés Felipe Quintero-Jaime
- Departamento de Química Física and Instituto Universitario de Materiales de Alicante (IUMA), University of Alicante, Ap. 99, 03080, Alicante, Spain
| | - Felipe Conzuelo
- Analytical Chemistry - Center for Electrochemical Sciences, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsst. 150, D-44780, Bochum, Germany
| | - Diego Cazorla-Amorós
- Departamento de Química Inorgánica and Instituto Universitario de Materiales de Alicante (IUMA), University of Alicante, Ap. 99, 03080, Alicante, Spain
| | - Emilia Morallón
- Departamento de Química Física and Instituto Universitario de Materiales de Alicante (IUMA), University of Alicante, Ap. 99, 03080, Alicante, Spain.
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4
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Aljohani ET, Shehata MR, Alkhatib F, Alzahrani SO, Abu‐Dief AM. Development and structure elucidation of new VO
2+
, Mn
2+
, Zn
2+
, and Pd
2+
complexes based on azomethine ferrocenyl ligand: DNA interaction, antimicrobial, antioxidant, anticancer activities, and molecular docking. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6154] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Enas T. Aljohani
- Chemistry Department, College of Science Majmaah University Majmaah Saudi Arabia
| | | | - Fatmah Alkhatib
- Chemistry Department, Faculty of Applied Science Umm Al‐Qura University Makkah Saudi Arabia
| | | | - Ahmed M. Abu‐Dief
- Chemistry Department, College of Science Taibah University Madinah Saudi Arabia
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
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5
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Aljohani ET, Shehata MR, Abu‐Dief AM. Design, synthesis, structural inspection of Pd
2+
, VO
2+
, Mn
2+
, and Zn
2+
chelates incorporating ferrocenyl thiophenol ligand: DNA interaction and pharmaceutical studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6169] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Enas T. Aljohani
- Chemistry Department, College of Science Majmaah University Majmaah Saudi Arabia
| | | | - Ahmed M. Abu‐Dief
- Chemistry Department, College of Science Taibah University Madinah Saudi Arabia
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
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6
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7
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Beitollahi H, Khalilzadeh MA, Tajik S, Safaei M, Zhang K, Jang HW, Shokouhimehr M. Recent Advances in Applications of Voltammetric Sensors Modified with Ferrocene and Its Derivatives. ACS OMEGA 2020; 5:2049-2059. [PMID: 32064365 PMCID: PMC7016907 DOI: 10.1021/acsomega.9b03788] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/17/2020] [Indexed: 05/05/2023]
Abstract
This study is on current developments concerning ferrocene (FC) and its derivatives on the basis of electrochemical biosensors and sensors. The distinct physiochemical characteristics of FC have enabled the development of new sensor devices, specifically electrochemical sensors. Several articles have focused on the implementation of FC as an electrode constituent while discussing its electrochemical behavior. Furthermore, typical FC-design-based biosensors and sensors are considered as well as practical examples. The favorable design of FC-based biosensors and general sensors needs adequate control of their chemical and physical characteristics in addition to their surface immobilization and functionalization.
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Affiliation(s)
- Hadi Beitollahi
- Environment
Department, Institute of Science and High Technology and Environmental
Sciences, Graduate University of Advanced
Technology, Kerman, Iran
- E-mail: (H.W.J.)
| | - Mohammad A. Khalilzadeh
- Department
of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, North Carolina 27607, United States
| | - Somayeh Tajik
- Research
Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohadeseh Safaei
- Environment
Department, Institute of Science and High Technology and Environmental
Sciences, Graduate University of Advanced
Technology, Kerman, Iran
| | - Kaiqiang Zhang
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Ho Won Jang
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
- E-mail: (H. W. Jang)
| | - Mohammadreza Shokouhimehr
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
- E-mail: (M.S.)
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8
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Non-enzymatic glucose sensor of high sensitivity fabricated with direct deposition of Au particles on polyvinylferrocene film modified Pt electrode. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00752-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Wang L, Meng Y, Zhang C, Xiao H, Li Y, Tan Y, Xie Q. Improving Photovoltaic and Enzymatic Sensing Performance by Coupling a Core-Shell Au Nanorod@TiO 2 Heterostructure with the Bioinspired l-DOPA Polymer. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9394-9404. [PMID: 30758182 DOI: 10.1021/acsami.8b19284] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The photoelectrochemistry (PEC) performance of TiO2 is somewhat limited by its wide band gap and low quantum efficiency, and the innovation of its composite materials provides a promising solution for an improved performance. Herein, a composite of a Au nanorod@TiO2 core-shell nanostructure (AuNR@TiO2) and a melanin-like l-DOPA polymer (PD) is designed and prepared, where the outer layer PD tethered by TiO2-hydroxyl complexation and the AuNR core can intensify the long-wavelength light harvesting, and the AuNR@TiO2 core-shell structure can strengthen the hot-electron transfer to TiO2. The photocurrent of PD/AuNR@TiO2 is 8.4-fold improved versus that of commercial TiO2, and the maximum incident photon-to-electron conversion efficiency reaches 65% in the UV-visible-near-infrared region. In addition, the novel PD/AuNR@TiO2 photocatalyst possesses the advantages of good biocompatibility and stability, which can act as a versatile PEC biosensing platform for providing a biocompatible environment and improving detection sensitivity. Herein, a PEC enzymatic biosensor of glucose is developed on the basis of the immobilization of dual enzyme [glucose oxidase (GOx) and horseradish peroxidase (HRP)] in PD and the signaling strategy of biocatalytic precipitation. In phosphate buffer containing glucose and 4-chloro-1-naphthol, the HRP-catalyzed oxidation of 4-chloro-1-naphthol by GOx-generated H2O2 can form a precipitate on the electrode, by which the decrement of photocurrent intensity is proportional to the common logarithm of glucose concentration. The linear detection range is from 0.05 μM to 10.0 mM glucose, with a limit of detection of 0.01 μM (S/N = 3). Glucose in some human serum samples is analyzed with satisfactory results.
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Affiliation(s)
- Linping Wang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P.R. China
| | - Yue Meng
- Institute of Nano-Bio Diagnosis and Therapy, College of Chemistry and Materials Engineering , Hunan University of Arts and Science , Changde 415000 , China
| | - Chunxiu Zhang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P.R. China
| | - Hongbo Xiao
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P.R. China
| | - Yunlong Li
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P.R. China
| | - Yueming Tan
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P.R. China
| | - Qingji Xie
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , P.R. China
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10
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Campbell AS, Islam MF, Russell AJ. Intramolecular Electron Transfer through Poly-Ferrocenyl Glucose Oxidase Conjugates to Carbon Electrodes: 2. Mechanistic Understanding of Long-Term Stability. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Sanzò G, Taurino I, Puppo F, Antiochia R, Gorton L, Favero G, Mazzei F, Carrara S, De Micheli G. A bimetallic nanocoral Au decorated with Pt nanoflowers (bio)sensor for H 2O 2 detection at low potential. Methods 2017; 129:89-95. [PMID: 28600228 DOI: 10.1016/j.ymeth.2017.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 04/13/2017] [Accepted: 06/03/2017] [Indexed: 10/19/2022] Open
Abstract
In this work, we have developed for the first time a method to make novel gold and platinum hybrid bimetallic nanostructures differing in shape and size. Au-Pt nanostructures were prepared by electrodeposition in two simple steps. The first step consists of the electrodeposition of nanocoral Au onto a gold substrate using hydrogen as a dynamic template in an ammonium chloride solution. After that, the Pt nanostructures were deposited onto the nanocoral Au organized in pores. Using Pt (II) and Pt (IV), we realized nanocoral Au decorated with Pt nanospheres and nanocoral Au decorated with Pt nanoflowers, respectively. The bimetallic nanostructures showed better capability to electrochemically oxidize hydrogen peroxide compared with nanocoral Au. Moreover, Au-Pt nanostructures were able to lower the potential of detection and a higher performance was obtained at a low applied potential. Then, glucose oxidase was immobilized onto the bimetallic Au-Pt nanostructure using cross-linking with glutaraldehyde. The biosensor was characterized by chronoamperometry at +0.15V vs. Ag pseudo-reference electrode (PRE) and showed good analytical performances with a linear range from 0.01 to 2.00mM and a sensitivity of 33.66µA/mMcm2. The good value of Kmapp (2.28mM) demonstrates that the hybrid nanostructure is a favorable environment for the enzyme. Moreover, the low working potential can minimize the interference from ascorbic acid and uric acid as well as reducing power consumption to effect sensing. The simple procedure to realize this nanostructure and to immobilize enzymes, as well as the analytical performances of the resulting devices, encourage the use of this technology for the development of biosensors for clinical analysis.
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Affiliation(s)
- Gabriella Sanzò
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland; Biosensors Laboratory, Department of Chemistry Drug Technologies, Sapienza University of Rome, P.le Aldo Moro, 5-00185 Roma, Italy
| | - Irene Taurino
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Francesca Puppo
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Riccarda Antiochia
- Biosensors Laboratory, Department of Chemistry Drug Technologies, Sapienza University of Rome, P.le Aldo Moro, 5-00185 Roma, Italy
| | - Lo Gorton
- Department of Analytical Chemistry/Biochemistry, P.O. Box 124, 221 00 Lund, Sweden
| | - Gabriele Favero
- Biosensors Laboratory, Department of Chemistry Drug Technologies, Sapienza University of Rome, P.le Aldo Moro, 5-00185 Roma, Italy
| | - Franco Mazzei
- Biosensors Laboratory, Department of Chemistry Drug Technologies, Sapienza University of Rome, P.le Aldo Moro, 5-00185 Roma, Italy
| | - Sandro Carrara
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Giovanni De Micheli
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
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12
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Su X, Hatton TA. Redox-electrodes for selective electrochemical separations. Adv Colloid Interface Sci 2017; 244:6-20. [PMID: 27712721 DOI: 10.1016/j.cis.2016.09.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 09/01/2016] [Accepted: 09/05/2016] [Indexed: 11/18/2022]
Abstract
Redox-active materials hold great promise as platforms for selective liquid-phase separations. In contrast to capacitive electrodes that rely purely on double-layer charge for deionization, redox-modified electrodes can be used to control Faradaic reactions at the interface to selectively bind various charged and uncharged molecules, thus modulating surface interactions through electrochemical potential solely. These electrodes can be composed of a range of functional materials, from organic and organometallic polymers to inorganic crystalline compounds, each relying on its own distinct ion-exchange process. Often, redox electrochemical systems can serve as pseudocapacitors or batteries, thus offering an advantageous combination of adsorption selectivity and energy storage/recovery. This review summarizes redox-interfaces for electrosorption and release, outlines methods for preparation and synthesis, discusses the diverse mechanisms for interaction, and gives a perspective on the future of redox-mediated separations.
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Affiliation(s)
- Xiao Su
- Department of Chemical Engineering, Massachusetts Institute of Technology, MA, United States
| | - T Alan Hatton
- Department of Chemical Engineering, Massachusetts Institute of Technology, MA, United States.
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13
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Donmez S, Arslan F, Sarı N, Hasanoğlu Özkan E, Arslan H. Glucose biosensor based on immobilization of glucose oxidase on a carbon paste electrode modified with microsphere-attached l
-glycine. Biotechnol Appl Biochem 2017; 64:745-753. [DOI: 10.1002/bab.1533] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 04/28/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Soner Donmez
- School of Health; Sinop University; Sinop Turkey
| | - Fatma Arslan
- Department of Chemistry; Faculty of Science; Gazi University; Ankara Turkey
| | - Nurşen Sarı
- Department of Chemistry; Faculty of Science; Gazi University; Ankara Turkey
| | | | - Halit Arslan
- Department of Chemistry; Faculty of Science; Gazi University; Ankara Turkey
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14
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Ferreira da Cunha T, Calderini D, Skouteris D. Analysis of Partition Functions for Metallocenes: Ferrocene, Ruthenocene, and Osmocene. J Phys Chem A 2016; 120:5282-7. [PMID: 27003631 DOI: 10.1021/acs.jpca.6b01280] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a calculation of the torsional potential of the three metallocenes of the iron group, that is, ferrocene, ruthenocene, and osmocene, calculated with the GAUSSIAN program suite. Both a variational method (through computation of the exact energy levels) and our Chebyshev imaginary time propagation method are used to calculate the hindered rotation partition function, demonstrating the efficiency of the Chebyshev scheme. The transition from a semirigid through a hindered rotor to the free rotor regime is demonstrated, and the effect of the hindered rotation (as opposed to a harmonic) treatment on the thermodynamics of metallocenes is demonstrated.
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Affiliation(s)
| | - D Calderini
- Scuola Normale Superiore , Piazza dei Cavalieri 7, Pisa 56126, Italy.,Istituto Nazionale di Fisica Nucleare (INFN) sezione di Pisa , Largo Bruno Pontecorvo 3, 56127, Pisa, Italy
| | - D Skouteris
- Scuola Normale Superiore , Piazza dei Cavalieri 7, Pisa 56126, Italy
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15
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Ozkan S, Sen Gursoy S. Pyrrole/N-p-toluenepyrrole copolymers in the presence of surfactants: A promising material for glucose sensing. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sevki Ozkan
- Department of Chemistry, Faculty of Arts and Science; Mehmet Akif Ersoy University; Burdur TR-15030 Turkey
| | - Songul Sen Gursoy
- Department of Chemistry, Faculty of Arts and Science; Mehmet Akif Ersoy University; Burdur TR-15030 Turkey
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16
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Deng Z, Wang L, Yu H, Zhai X, Chen Y, Zain-ul-Abdin ZUA, Abbasi NM. Synthesis of ferrocenyl hyper-branched polyethylene for non-covalent dispersion of multi-walled carbon nanotubes and fabrication of flexible carbon nanotubes-based conductive films. RSC Adv 2016. [DOI: 10.1039/c6ra01182a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Ferrocenyl hyper-branched polyethylene was found to be an efficient dispersant for dispersing MWCNTs in CHCl3 and for preparing a flexible conductive film.
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Affiliation(s)
- Zheng Deng
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Li Wang
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaoting Zhai
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yongsheng Chen
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zain-ul-Abdin Zain-ul-Abdin
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Nasir M. Abbasi
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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17
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Chekini M, Cataldi U, Maroni P, Guénée L, Černý R, Bürgi T. Preparation of Anisotropic and Oriented Particles on a Flexible Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13221-13229. [PMID: 26575589 DOI: 10.1021/acs.langmuir.5b03524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Elongated plasmonic nanoparticles show superior optical properties when compared to spherical ones. Facile, versatile and cost-effective bottom-up approaches for fabrication of anisotropic nanoparticles in solution have been developed. However, fabrication of 2-D plasmonic templates from elongated nanoparticles with spatial arrangement at the surface is still a challenge. We used controlled seed-mediated growth in the presence of porous and functionalized surface of flexible polydimethylsiloxane (PDMS) templates to provide directional growth and formation of elongated gold nanoparticles (AuNPs). Atomic force microscopy (AFM) and spectroscopy revealed embedding of the particles within the functionalized porous surface of PDMS. Nanoparticles shapes were observed with transmission electron microscope (TEM), UV-Vis spectroscopy, and X-ray powder diffraction (XRPD) measurements, which revealed an overall orientation of particles at the surface. Anisotropic and oriented particles on a flexible substrate are of interest for sensing applications.
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Affiliation(s)
- Mahshid Chekini
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Ugo Cataldi
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Plinio Maroni
- Department of Inorganic and Analytic Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Laure Guénée
- Department of Quantum Matter Physics, Laboratory of Crystallography, University of Geneva , 24 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Radovan Černý
- Department of Quantum Matter Physics, Laboratory of Crystallography, University of Geneva , 24 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
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18
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Erogul S, Bas SZ, Ozmen M, Yildiz S. A new electrochemical sensor based on Fe3O4 functionalized graphene oxide-gold nanoparticle composite film for simultaneous determination of catechol and hydroquinone. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.10.174] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Saleem M, Yu H, Wang L, Zain-ul-Abdin, Khalid H, Akram M, Abbasi NM, Huang J. Review on synthesis of ferrocene-based redox polymers and derivatives and their application in glucose sensing. Anal Chim Acta 2015; 876:9-25. [DOI: 10.1016/j.aca.2015.01.012] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
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20
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Kuralay F, Erdem A. Gold nanoparticle/polymer nanocomposite for highly sensitive drug–DNA interaction. Analyst 2015; 140:2876-80. [DOI: 10.1039/c5an00061k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate a gold nanaparticle/polyvinylferrocenium (AuNP/PVF+) coated platinum (Pt) electrode for sensing highly sensitive DNA–anticancer drug interactions.
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Affiliation(s)
- F. Kuralay
- Department of Chemistry
- Faculty of Arts and Sciences
- Ordu University
- 52200 Ordu
- Turkey
| | - A. Erdem
- Analytical Chemistry Department
- Faculty of Pharmacy
- Ege University
- 35100 Bornova-Izmir
- Turkey
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21
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Dervisevic M, Çevik E, Şenel M. Development of glucose biosensor based on reconstitution of glucose oxidase onto polymeric redox mediator coated pencil graphite electrodes. Enzyme Microb Technol 2015; 68:69-76. [DOI: 10.1016/j.enzmictec.2014.09.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 09/01/2014] [Accepted: 09/16/2014] [Indexed: 11/25/2022]
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22
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Ozkan E, Ozkan FT, Allan E, Parkin IP. The use of zinc oxide nanoparticles to enhance the antibacterial properties of light-activated polydimethylsiloxane containing crystal violet. RSC Adv 2015. [DOI: 10.1039/c4ra13649g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Crystal violet–ZnO mixtures were incorporated into PDMS by a simple two step method. The modified polymer demonstrated significant antibacterial activity againstE. coliandS. aureus, showing possibly the most potent light-induced antibacterial polymer reported to date.
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Affiliation(s)
- Ekrem Ozkan
- Materials Chemistry Research Centre
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| | - Feyza Tunali Ozkan
- Materials Chemistry Research Centre
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| | - Elaine Allan
- Division of Microbial Diseases
- UCL Eastman Dental Institute
- University College London
- London
- UK
| | - Ivan P. Parkin
- Materials Chemistry Research Centre
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
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23
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Latouche C, Palazzetti F, Skouteris D, Barone V. High-Accuracy Vibrational Computations for Transition-Metal Complexes Including Anharmonic Corrections: Ferrocene, Ruthenocene, and Osmocene as Test Cases. J Chem Theory Comput 2014; 10:4565-73. [DOI: 10.1021/ct5006246] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Camille Latouche
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | | | | | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
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24
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Preparation of carbon paste electrodes including poly(styrene) attached glycine–Pt(IV) for amperometric detection of glucose. Biosens Bioelectron 2014; 54:146-50. [DOI: 10.1016/j.bios.2013.10.059] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/28/2013] [Accepted: 10/29/2013] [Indexed: 11/16/2022]
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25
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Glucose biosensor based on immobilization of glucose oxidase in electropolymerized poly(o-phenylenediamine) film on platinum nanoparticles-polyvinylferrocenium modified electrode. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.189] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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BAş SALIHZEKI, GüLCE HANDAN, YILDIZ SALIH. Hypoxanthine Biosensor Based on Immobilization of Xanthine Oxidase on Modified Pt Electrode and Its Application for Fish Meat. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2013.854215] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Glucose biosensor based on a platinum electrode modified with rhodium nanoparticles and with glucose oxidase immobilized on gold nanoparticles. Mikrochim Acta 2014. [DOI: 10.1007/s00604-013-1143-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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28
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Wang JY, Chen LC, Ho KC. Synthesis of redox polymer nanobeads and nanocomposites for glucose biosensors. ACS APPLIED MATERIALS & INTERFACES 2013; 5:7852-61. [PMID: 23845050 DOI: 10.1021/am4018219] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Redox polymer nanobeads of branched polyethylenimine binding with ferrocene (BPEI-Fc) were synthesized using a simple chemical process. The functionality and morphology of the redox polymer nanobeads were investigated by Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). This hydrophilic redox nanomaterial could be mixed with glucose oxidase (GOx) for drop-coating on a screen-printed carbon electrode (SPCE) for glucose sensing application. Electrochemical properties of the BPEI-Fc/GOx/SPCE prepared under different conditions were studied by cyclic voltammetry (CV). On the basis of these CV results, the synthetic condition of the BPEI-Fc/GOx/SPCE could be optimized. By incorporating conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), the performance of a redox polymer nanobead–based enzyme electrode could be further improved. The influence of PEDOT:PSS on the nanocomposite enzyme electrode was discussed from the aspects of the apparent electron diffusion coefficient (D(app)) and the charge transfer resistance (R(ct)). The glucose-sensing sensitivity of the BPEI-Fc/PEDOT:PSS/GOx/SPCE is calculated to be 66 μA mM(–1) cm(–2), which is 2.5 times higher than that without PEDOT:PSS. The apparent Michaelis constant (K(M)(app)) of the BPEI-Fc/PEDOT:PSS/GOx/SPCE estimated by the Lineweaver–Burk plot is 2.4 mM, which is much lower than that of BPEI-Fc/GOx/SPCE (11.2 mM). This implies that the BPEI-Fc/PEDOT:PSS/GOx/SPCE can catalytically oxidize glucose in a more efficient way. The interference test was carried out by injection of glucose and three common interferences: ascorbic acid (AA), dopamine (DA), and uric acid (UA) at physiological levels. The interferences of DA (4.2%) and AA (7.8%) are acceptable and the current response to UA (1.6%) is negligible, compared to the current response to glucose.
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Affiliation(s)
- Jen-Yuan Wang
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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29
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Meredith MT, Hickey DP, Redemann JP, Schmidtke DW, Glatzhofer DT. Effects of ferrocene methylation on ferrocene-modified linear poly(ethylenimine) bioanodes. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Determination of sulfite with emphasis on biosensing methods: a review. Anal Bioanal Chem 2013; 405:3049-62. [PMID: 23392406 DOI: 10.1007/s00216-013-6753-0] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 12/15/2012] [Accepted: 01/16/2013] [Indexed: 10/27/2022]
Abstract
Sulfite is used as a preservative in a variety of food and pharmaceutical industries to inhibit enzymatic and nonenzymatic browning and in brewing industries as an antibacterial and antioxidizing agent. Convenient and reproducible analytical methods employing sulfite oxidase are an attractive alternative to conventional detection methods. Sulfite biosensors are based on measurement of either O2 or electrons generated from splitting of H2O2 or heat released during oxidation of sulfite by immobilized sulfite oxidase. Sulfite biosensors can be grouped into 12 classes. They work optimally within 2 to 900 s, between pH 6.5 and 9.0, 25 and 40 °C, and in the range from 0 to 50,000 μM, with detection limit between 0.2 and 200 μM. Sulfite biosensors measure sulfite in food, beverages, and water and can be reused 100-300 times over a period of 1-240 days. The review presents the principles, merits, and demerits of various analytical methods for determination of sulfite, with special emphasis on sulfite biosensors.
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32
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Polyvinylferrocenium based platinum electrodeposited amperometric biosensors for lysine detection. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2012.11.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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34
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35
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Direct Electron Transfer of Hemoglobin on Manganese III Oxide-Ag Nanofibers Modified Glassy Carbon Electrode. Int J Anal Chem 2012; 2012:375831. [PMID: 22550487 PMCID: PMC3328944 DOI: 10.1155/2012/375831] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 02/04/2012] [Indexed: 11/17/2022] Open
Abstract
We investigated the electrochemical behavior of hemoglobin by glassy carbon electrode modified with Mn2O3-Ag nanofibers. The Mn2O3-Ag nanofibers were used as facilitator electron transfer between Hb and glassy-carbon-modified electrode. The Mn2O3-Ag nanofibers are studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The hemoglobin showed a quasireversible electrochemical redox behavior with a formal potential of −49 mV (versus Ag/AgCl) in 0.1 M potassium phosphate buffer solution at pH 7.0. The designed biosensor possesses good stability and reproducibility and achieves 95% of the steady-state current in less than five seconds.
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36
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Meredith MT, Minteer SD. Biofuel cells: enhanced enzymatic bioelectrocatalysis. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2012; 5:157-179. [PMID: 22524222 DOI: 10.1146/annurev-anchem-062011-143049] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Enzymatic biofuel cells represent an emerging technology that can create electrical energy from biologically renewable catalysts and fuels. A wide variety of redox enzymes have been employed to create unique biofuel cells that can be used in applications such as implantable power sources, energy sources for small electronic devices, self-powered sensors, and bioelectrocatalytic logic gates. This review addresses the fundamental concepts necessary to understand the operating principles of biofuel cells, as well as recent advances in mediated electron transfer- and direct electron transfer-based biofuel cells, which have been developed to create bioelectrical devices that can produce significant power and remain stable for long periods.
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Affiliation(s)
- Matthew T Meredith
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, USA.
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37
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Zhang L, Lei J, Zhang J, Ding L, Ju H. Amperometric detection of hypoxanthine and xanthine by enzymatic amplification using a gold nanoparticles–carbon nanohorn hybrid as the carrier. Analyst 2012; 137:3126-31. [DOI: 10.1039/c2an35284b] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Amperometric biosensors based on deposition of gold and platinum nanoparticles on polyvinylferrocene modified electrode for xanthine detection. Talanta 2011; 87:189-96. [DOI: 10.1016/j.talanta.2011.09.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 09/20/2011] [Accepted: 09/27/2011] [Indexed: 11/21/2022]
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39
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Erden PE, Pekyardimci Ş, Kiliç E. Amperometric carbon paste enzyme electrodes for uric acid determination with different mediators. ACTA ACUST UNITED AC 2011. [DOI: 10.1135/cccc2011049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this study, two new amperometric carbon paste enzyme electrodes for determination of uric acid were developed. The carbon paste was prepared by mixing uricase enzyme, 1,4-benzoquinone or poly(vinylferrocene) (PVF) as a mediator, graphite powder, paraffin oil and then the paste was placed into cavity of a teflon electrode body. Determination of uric acid was performed by oxidation of enzymatically generated H2O2. The effects of enzyme loading, mediator amount, buffer type, pH, buffer concentration, working potential and temperature were investigated for both electrodes. The working range of the 1,4-benzoquinone modified enzyme electrode was 1.9 × 10–8–2.7 × 10–3 M, detection limit 1.9 × 10–8 M and response time 150 s. Optimum buffer type, pH, buffer concentration, working potential, temperature and amounts of enzyme and mediator for 1,4-benzoquinone modified enzyme electrode were found to be Tris, 8.0, 0.20 M, +0.25 V, 30 °C, 2.0 Unit and 13%, respectively. The working range of the PVF modified enzyme electrode was 7.4 × 10–8–7.0 × 10–3 M, detection limit 7.4 × 10–8 M and response time 120 s. Optimum buffer type, pH, buffer concentration, working potential, temperature and amounts of enzyme and mediator for PVF modified enzyme electrode were found to be phosphate, 8.0, 0.05 M, +0.70 and +0.30 V, 40 °C, 2.0 Unit and 10.9%, respectively. The repeatability, storage stability of the enzyme electrodes and interference effects were also investigated. Enzyme electrodes were used for determination of uric acid in serum samples and the results were in a good agreement with those obtained by commercial enzymatic kits.
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40
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Jirimali HD, Nagarale RK, Lee JM, Saravanakumar D, Shin W. Preparation of PEG Tethered Ferrocene Modified Polyacrylic Acid/Silica Composite as an Electroactive Polymeric Platform for Biosensors. ELECTROANAL 2011. [DOI: 10.1002/elan.201100192] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Reagentless amperometric glucose biosensor based on the immobilization of glucose oxidase on a ferrocene@NaY zeolite composite. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0624-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Characteristics of polysilicon wire glucose sensors with a surface modified by silica nanoparticles/γ-APTES nanocomposite. SENSORS 2011; 11:2796-808. [PMID: 22163767 PMCID: PMC3231599 DOI: 10.3390/s110302796] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 02/14/2011] [Accepted: 02/28/2011] [Indexed: 11/17/2022]
Abstract
This report investigates the sensing characteristics of polysilicon wire (PSW) glucose biosensors, including thickness characteristics and line-width effects on detection limits, linear range and interference immunity with membranes coated by micropipette/spin-coating and focus-ion-beam (FIB) processed capillary atomic-force-microscopy (C-AFM) tip scan/coating methods. The PSW surface was modified with a mixture of 3-aminopropyl-triethoxysilane (γ-APTES) and polydimethylsiloxane (PDMS)-treated hydrophobic fumed silica nanoparticles (NPs). We found that the thickness of the γ-APTES+NPs nonocomposite could be controlled well at about 22 nm with small relative standard deviation (RSD) with repeated C-AFM tip scan/coatings. The detection limit increased and linear range decreased with the line width of the PSW through the tip-coating process. Interestingly, the interference immunity ability improves as the line width increases. For a 500 nm-wide PSW, the percentage changes of the channel current density changes (ΔJ) caused by acetaminophen (AP) can be kept below 3.5% at an ultra-high AP-to-glucose concentration ratio of 600:1. Simulation results showed that the line width dependence of interference immunity was strongly correlated with the channel electrical field of the PSW biosensor.
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43
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Meng Z, Zheng J, Sheng Q, Zheng X. In situ synthesis of thulium(III) hexacyanoferrate(II) nanoparticles and its application for glucose detection. Anal Chim Acta 2011; 689:47-51. [DOI: 10.1016/j.aca.2011.01.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 12/27/2010] [Accepted: 01/12/2011] [Indexed: 11/15/2022]
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44
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In situ synthesis of catalytic metal nanoparticle-PDMS membranes by thermal decomposition process. COMPOSITES SCIENCE AND TECHNOLOGY 2011. [DOI: 10.1016/j.compscitech.2010.10.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Wu YL, Hsu PY, Lin JJ. Polysilicon wire glucose sensor highly immune to interference. Biosens Bioelectron 2010; 26:2281-6. [PMID: 21030241 DOI: 10.1016/j.bios.2010.09.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 09/27/2010] [Accepted: 09/28/2010] [Indexed: 10/19/2022]
Abstract
This study investigated the interference elimination ability of a glucose sensor made of polysilicon wire (PSW) with a surface modified by 3-aminopropyltriethoxysilane mixed with polydimethylsiloxane-treated hydrophobic fumed silica nanoparticles plus ultra-violet illumination (γ-APTES+NPs+UV). Glucose sensing of the PSW sensor in the presence of five common interferences such as ascorbic acid (AA), uric acid (UA), acetaminophen (AP), L-cysteine (Lys), and citric acid (CA) was performed. We found that the disturbance caused by the interferences was low for interference-to-glucose concentration ratios up to 600:1 if the PSW surface is modified with γ-APTES+NPs+UV. The outstanding interference immunity of this PSW glucose sensor is believed to be mainly due to the fact that it is a dry-type sensor and the extremely low leakage of the γ-APTES+NPs membrane which allows the PSW to show three orders of magnitude lower leakage current than with the γ-APTES membrane only. In addition to its excellent interference immunity, the PSW glucose sensor with a line width of 100 nm also exhibits a wide linear detection range, an ultra-high sensitivity, an ultra low detection limit, and it can be reused more than a thousand times without much sensitivity degradation.
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Affiliation(s)
- You-Lin Wu
- Department of Electrical Engineering, National Chi Nan University, Puli, Nantou, Taiwan, ROC
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46
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Altikatoglu M, Basaran Y, Arioz C, Ogan A, Kuzu H. Glucose oxidase-dextran conjugates with enhanced stabilities against temperature and pH. Appl Biochem Biotechnol 2010; 160:2187-97. [PMID: 20054664 DOI: 10.1007/s12010-009-8812-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Accepted: 10/04/2009] [Indexed: 10/20/2022]
Abstract
Multipoint covalent bonding of glucose oxidase (EC 1.1.3.4) to hydrophilic natural polymer dextran and optimization of procedures to obtain, with enhanced temperature and pH stabilities, were studied. Purified enzyme was conjugated with various molecular weight dextrans (17.5, 75, and 188 kD) in a ratio of 20:1, 10:1, 1:1, 1:5, 1:10, 1:15, and 1:20. After 1 h of incubation at pH 7, the activities of purified enzyme and conjugates were determined at different temperatures (25 degrees C, 30 degrees C, 35 degrees C, 40 degrees C, 50 degrees C, 60 degrees C, 70 degrees C, and 80 degrees C), and the results were evaluated for thermal resistance. Increases in temperature from 25 degrees C to 50 degrees C did not change the activities of the conjugates. The conjugate, which was prepared with 75 kDa dextran in a molar ratio of 1:5, showed the highest thermal resistance and even the activity still remains at 80 degrees C at pH 7.0. This conjugate also displayed activity in a wide pH range (pH 4.0-7.0) at high temperatures. Conjugate, which was synthesized with 75 kDa dextran in a molar ratio of 1:5, appears to be feasible and useful for biotechnological applications.
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Affiliation(s)
- Melda Altikatoglu
- Department of Chemistry, Faculty of Sciences and Letters, Yildiz Technical University, Davutpasa Campus, Esenler, 34210 Istanbul, Turkey.
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Gursoy SS, Uygun (GOK) A, Tilki T. Synthesis and Characterization of Some N-substituted Polypyrrole Derivatives: Towards Glucose Sensing Electrodes. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2010. [DOI: 10.1080/10601325.2010.483376] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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48
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Li F, Song J, Li F, Wang X, Zhang Q, Han D, Ivaska A, Niu L. Direct electrochemistry of glucose oxidase and biosensing for glucose based on carbon nanotubes@SnO2-Au composite. Biosens Bioelectron 2009; 25:883-8. [DOI: 10.1016/j.bios.2009.08.044] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2009] [Revised: 08/30/2009] [Accepted: 08/31/2009] [Indexed: 02/02/2023]
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50
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Bunte C, Rühe J. Photochemical Generation of Ferrocene-Based Redox-Polymer Networks. Macromol Rapid Commun 2009; 30:1817-22. [DOI: 10.1002/marc.200900341] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 06/13/2009] [Indexed: 11/08/2022]
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