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Naz I, Tahira A, Shah AA, Bhatti MA, Mahar IA, Markhand MP, Mastoi GM, Nafady A, Medany SS, Dawi EA, Saleem LM, Vigolo B, Ibupoto ZH. Green Synthesis of NiO Nanoflakes Using Bitter Gourd Peel, and Their Electrochemical Urea Sensing Application. MICROMACHINES 2023; 14:677. [PMID: 36985084 PMCID: PMC10053069 DOI: 10.3390/mi14030677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/13/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
To determine urea accurately in clinical samples, food samples, dairy products, and agricultural samples, a new analytical method is required, and non-enzymatic methods are preferred due to their low cost and ease of use. In this study, bitter gourd peel biomass waste is utilized to modify and structurally transform nickel oxide (NiO) nanostructures during the low-temperature aqueous chemical growth method. As a result of the high concentration of phytochemicals, the surface was highly sensitive to urea oxidation under alkaline conditions of 0.1 M NaOH. We investigated the structure and shape of NiO nanostructures using powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). In spite of their flake-like morphology and excellent crystal quality, NiO nanostructures exhibited cubic phases. An investigation of the effects of bitter gourd juice demonstrated that a large volume of juice produced thin flakes measuring 100 to 200 nanometers in diameter. We are able to detect urea concentrations between 1-9 mM with a detection limit of 0.02 mM using our urea sensor. Additionally, the stability, reproducibility, repeatability, and selectivity of the sensor were examined. A variety of real samples, including milk, blood, urine, wheat flour, and curd, were used to test the non-enzymatic urea sensors. These real samples demonstrated the potential of the electrode device for measuring urea in a routine manner. It is noteworthy that bitter gourd contains phytochemicals that are capable of altering surfaces and activating catalytic reactions. In this way, new materials can be developed for a wide range of applications, including biomedicine, energy production, and environmental protection.
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Affiliation(s)
- Irum Naz
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan; (I.N.); (A.T.); (G.M.M.)
| | - Aneela Tahira
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan; (I.N.); (A.T.); (G.M.M.)
- Institute of Chemistry, Shah Abdul Latif University, Khairpur Mirs 66111, Pakistan;
| | - Aqeel Ahmed Shah
- Wet Chemistry Laboratory, Department of Metallurgical Engineering, NED University of Engineering and Technology, University Road, Karachi 75270, Pakistan;
| | - Muhammad Ali Bhatti
- Centre for Environmental Sciences, University of Sindh, Jamshoro 76080, Pakistan
| | - Ihsan Ali Mahar
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan; (I.N.); (A.T.); (G.M.M.)
| | | | - Ghulam Murtaza Mastoi
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan; (I.N.); (A.T.); (G.M.M.)
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Shymaa S. Medany
- Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt;
| | - Elmuez A. Dawi
- Nonlinear Dynamics Research Centre (NDRC), Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Lama M. Saleem
- Biomolecular Science, Earth and Life Science, Amsterdam University, De Boelelaan 1 105, 1081 HV Amsterdam, The Netherlands;
| | - Brigitte Vigolo
- Institut Jean Lamour, CNRS-Université de Lorraine, F-54000 Nancy, France;
| | - Zafar Hussain Ibupoto
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan; (I.N.); (A.T.); (G.M.M.)
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Yadav S, Senapati S, Kumar S, Gahlaut SK, Singh JP. GLAD Based Advanced Nanostructures for Diversified Biosensing Applications: Recent Progress. BIOSENSORS 2022; 12:1115. [PMID: 36551082 PMCID: PMC9775079 DOI: 10.3390/bios12121115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Glancing angle deposition (GLAD) is a technique for the fabrication of sculpted micro- and nanostructures under the conditions of oblique vapor flux incident and limited adatom diffusion. GLAD-based nanostructures are emerging platforms with broad sensing applications due to their high sensitivity, enhanced optical and catalytic properties, periodicity, and controlled morphology. GLAD-fabricated nanochips and substrates for chemical and biosensing applications are replacing conventionally used nanomaterials due to their broad scope, ease of fabrication, controlled growth parameters, and hence, sensing abilities. This review focuses on recent advances in the diverse nanostructures fabricated via GLAD and their applications in the biomedical field. The effects of morphology and deposition conditions on GLAD structures, their biosensing capability, and the use of these nanostructures for various biosensing applications such as surface plasmon resonance (SPR), fluorescence, surface-enhanced Raman spectroscopy (SERS), and colorimetric- and wettability-based bio-detection will be discussed in detail. GLAD has also found diverse applications in the case of molecular imaging techniques such as fluorescence, super-resolution, and photoacoustic imaging. In addition, some in vivo applications, such as drug delivery, have been discussed. Furthermore, we will also provide an overview of the status of GLAD technology as well as future challenges associated with GLAD-based nanostructures in the mentioned areas.
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Affiliation(s)
- Sarjana Yadav
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sneha Senapati
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Samir Kumar
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
| | - Shashank K. Gahlaut
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Jitendra P. Singh
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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3
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Urease-modified LAPS: Two-dimensional dynamic detection of enzymatic reactions. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Wei W, Tang H, Dong S, Fu Y, Huang T. A novel pomegranate-inspired bifunctional electrode materials design for acetylcholinesterase biosensor and methanol oxidation reaction. Bioelectrochemistry 2022; 145:108094. [DOI: 10.1016/j.bioelechem.2022.108094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/01/2022] [Accepted: 03/08/2022] [Indexed: 12/31/2022]
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Smartphone-assisted point-of-care colorimetric biosensor for the detection of urea via pH-mediated AgNPs growth. Anal Chim Acta 2021; 1170:338630. [PMID: 34090590 DOI: 10.1016/j.aca.2021.338630] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/27/2021] [Accepted: 05/07/2021] [Indexed: 12/17/2022]
Abstract
Smartphone-assisted point-of-care (POC) bioassay has brought a giant leap in personal healthcare system and environmental monitoring advancements. In this study, we developed a rapid and reliable colorimetric urea biosensor assisted by a smartphone. We employed hydrolysis of urea into NH3 by urease, which activates the reduction power of tannic acid, to generate silver nanoparticles for a dramatic colorimetric response. The proposed urea biosensor was validated in a solution to provide high selectivity against various interferents in human urine. It had high sensitivity, with a limit of detection as low as 0.0036 mM, and a high reliability of 99% ± 2.9% via the standard addition method. The urea biosensor was successfully implanted on a paper to facilitate smartphone-assisted POC readout with a limit of detection of 0.58 mM and wide detection range of 500 mM, whereby direct diagnosis of human urine without dilution was realized. Our smartphone-assisted POC colorimetric urea biosensor will pave the way for daily monitoring systems of renal and hepatic dysfunction diseases.
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Singh S, Sharma M, Singh G. Recent advancements in urea biosensors for biomedical applications. IET Nanobiotechnol 2021; 15:358-379. [PMID: 34694714 PMCID: PMC8675831 DOI: 10.1049/nbt2.12050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/06/2021] [Accepted: 02/14/2021] [Indexed: 12/22/2022] Open
Abstract
The quick progress in health care technology as a recurrent measurement of biochemical factors such as blood components leads to advance development and growth in biosensor technology necessary for effectual patient concern. The review wok of authors present a concise information and brief discussion on the development made in the progress of potentiometric, field effect transistor, graphene, electrochemical, optical, polymeric, nanoparticles and nanocomposites based urea biosensors in the past two decades. The work of authors is also centred on different procedures/methods for detection of urea by using amperometric, potentiometric, conductometric and optical processes, where graphene, polymer etc. are utilised as an immobilised material for the fabrication of biosensors. Further, a comparative revision has been accomplished on various procedures of urea analysis using different materials-based biosensors, and it discloses that electrochemical and potentiometric biosensor is the most promise one among all, in terms of rapid response time, extensive shelf life and resourceful design.
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Affiliation(s)
- Saravjeet Singh
- Department of Biomedical EngineeringDeenbandhu Chhotu Ram University of Science and TechnologyMurthalSonepatIndia
| | - Minakshi Sharma
- Department of ZoologyMaharishi Dayanand UniversityRohtakHaryanaIndia
| | - Geeta Singh
- Department of Biomedical EngineeringDeenbandhu Chhotu Ram University of Science and TechnologyMurthalSonepatIndia
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Botewad SN, Gaikwad DK, Girhe NB, Thorat HN, Pawar PP. Urea biosensors: A comprehensive review. Biotechnol Appl Biochem 2021; 70:485-501. [PMID: 33847399 DOI: 10.1002/bab.2168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/02/2021] [Indexed: 01/11/2023]
Abstract
Present study is specially designed for the recent advances in biosensors to detect and quantify urea concentration. Urea (carbamide) is an organic compound made up of the carbonyl (C=O) functional group with two -NH2 groups having chemical formula CO (NH2 )2 . In nature, urea is found everywhere as the result of various processes, and in the human body, urea is an end product of nitrogen metabolism. An excessive concentration of urea in the human body is responsible for different critical diseases such as indigestion, acidity, ulcers, cancer, malfunctioning of kidneys, renal failure, urinary tract obstruction, dehydration, shock, burns, gastrointestinal bleeding, and so on. Moreover, below the normal level may cause hepatic failure, nephritic syndrome, cachexia, and so on. As well as in various fields such as fishery, dairy, food preservation, agriculture, and so on, urea is normally found and its detection is necessary. In urea biosensors, enzyme urease (Urs) is used as a bioreceptor element and retains its long last activity is the critical issue in front of the researcher. During recent decades, different nanoparticles (zinc oxide, nickel oxide, iron oxide, titanium dioxide, tin(IV) oxide, etc.), conducting polymer (polyaniline, polypyrrole, etc.), conducting polymer-nanoparticles composites, carbon materials (carbon nanotubes, graphene oxide, reduced graphene oxide graphene), and so on are used in urea biosensors. The main emphasis of the present study is to provide cumulative and comprehensive information about the sensing parameters of urea biosensors based on the materials used for enzyme immobilization. Besides this special task, this review provides a fruitful discussion on the basics of biosensors briefly for new and upcoming researchers. Thus, the present study may act as a gift for a large audience that come from different fields and are working in biosensors research.
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Affiliation(s)
- Sunil N Botewad
- Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India
| | | | - Nitin B Girhe
- Jawahar Science, Commerce and Arts College, Andoor, Tq. Tuljapur District, Osmanabad, India
| | - Hanuman N Thorat
- Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India
| | - Pravina P Pawar
- Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India
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Stasyuk N, Smutok O, Demkiv O, Prokopiv T, Gayda G, Nisnevitch M, Gonchar M. Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review. SENSORS (BASEL, SWITZERLAND) 2020; 20:E4509. [PMID: 32806607 PMCID: PMC7472306 DOI: 10.3390/s20164509] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 02/06/2023]
Abstract
The current review is devoted to nanozymes, i.e., nanostructured artificial enzymes which mimic the catalytic properties of natural enzymes. Use of the term "nanozyme" in the literature as indicating an enzyme is not always justified. For example, it is used inappropriately for nanomaterials bound with electrodes that possess catalytic activity only when applying an electric potential. If the enzyme-like activity of such a material is not proven in solution (without applying the potential), such a catalyst should be named an "electronanocatalyst", not a nanozyme. This paper presents a review of the classification of the nanozymes, their advantages vs. natural enzymes, and potential practical applications. Special attention is paid to nanozyme synthesis methods (hydrothermal and solvothermal, chemical reduction, sol-gel method, co-precipitation, polymerization/polycondensation, electrochemical deposition). The catalytic performance of nanozymes is characterized, a critical point of view on catalytic parameters of nanozymes described in scientific papers is presented and typical mistakes are analyzed. The central part of the review relates to characterization of nanozymes which mimic natural enzymes with analytical importance ("nanoperoxidase", "nanooxidases", "nanolaccase") and their use in the construction of electro-chemical (bio)sensors ("nanosensors").
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Affiliation(s)
- Nataliya Stasyuk
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.S.); (O.D.); (T.P.); (G.G.)
| | - Oleh Smutok
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.S.); (O.D.); (T.P.); (G.G.)
- Department of Biology and Chemistry, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine
| | - Olha Demkiv
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.S.); (O.D.); (T.P.); (G.G.)
- Faculty of Veterinary Hygiene, Ecology and Law, Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnologies, 79000 Lviv, Ukraine
| | - Tetiana Prokopiv
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.S.); (O.D.); (T.P.); (G.G.)
| | - Galina Gayda
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.S.); (O.D.); (T.P.); (G.G.)
| | - Marina Nisnevitch
- Department of Chemical Engineering, Ariel University, Kyriat-ha-Mada, Ariel 4070000, Israel;
| | - Mykhailo Gonchar
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.S.); (O.D.); (T.P.); (G.G.)
- Department of Biology and Chemistry, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine
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9
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Tripathi A, Harris KD, Elias AL. Peroxidase-Like Behavior of Ni Thin Films Deposited by Glancing Angle Deposition for Enzyme-Free Uric Acid Sensing. ACS OMEGA 2020; 5:9123-9130. [PMID: 32363264 PMCID: PMC7191584 DOI: 10.1021/acsomega.9b04071] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/09/2020] [Indexed: 05/28/2023]
Abstract
We present a nanozyme-based biosensor fabricated from nanostructured Ni films deposited onto a silicon wafer by glancing angle deposition (GLAD) for enzyme-free colorimetric monitoring of uric acid (UA), a biomarker for gout, high blood pressure, heart disease, and kidney disease. The helically structured Ni GLAD nanozymes exhibit excellent peroxidase-like activity to accelerate the oxidation reaction of colorless 3,3',5,5'-tetramethylbenzidine (TMB) to a blue product, oxidized TMB (oxTMB), mediated by H2O2. In the presence of UA, oxTMB is reduced, decreasing the optical absorbance by an amount determined by the concentration of UA in the solution. The nanozyme not only mimics peroxidase but also possesses the notable qualities of reusability, simple operation, and reliability, making it environment-friendly and suitable for on-demand analysis. We optimized essential working parameters (pH, TMB concentration, and H2O2 concentration) to maximize the initial color change of the TMB solution. The catalytic activity of this nanozyme was compared with conventional nanofilms using the Michaelis-Menten theory. Based on this, enzyme-free biosensors were developed for colorimetric detection of UA, providing a wide detection range and a limit of detection (3.3 μM) suitable for measurements of UA concentration in sweat. Furthermore, interference from glucose and urea was studied so as to explore the potential of the biosensor for use in the clinical diagnosis of UA biomarkers.
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Affiliation(s)
- Anuja Tripathi
- Department
of Chemical and Materials Engineering, Donadeo Innovation Centre for
Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Kenneth D. Harris
- National
Research Council Canada, Nanotechnology
Research Centre, Edmonton, Alberta T6G 2M9, Canada
- Department
of Mechanical Engineering, University of
Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Anastasia L. Elias
- Department
of Chemical and Materials Engineering, Donadeo Innovation Centre for
Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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Nanostructured nickel oxide electrodes for non-enzymatic electrochemical glucose sensing. Mikrochim Acta 2020; 187:196. [PMID: 32125544 DOI: 10.1007/s00604-020-4171-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/18/2020] [Indexed: 01/08/2023]
Abstract
Nanostructured nickel (Ni) and nickel oxide (NiO) electrodes were fabricated on Ni foils using the glancing angle deposition (GLAD) technique. Cyclic voltammetry and amperometry showed the electrodes enable non-enzymatic electrochemical determination of glucose in strongly alkaline media. Under optimized conditions of NaOH concentration and working potential (~ 0.50 V vs. Ag/AgCl), the GLAD electrodes performed far better than bare Ni foil electrodes, with the GLAD NiO electrode showing an outstanding sensitivity (4400 μA mM-1 cm-2), superior detection limit (7 nM), and wide dynamic range (0.5 μM-9 mM), with desirable selectivity and reproducibility. Based on their performance at a low concentration, the GLAD NiO electrodes were also used to quantify glucose in artificial urine and sweat samples which have significantly lower glucose levels than blood. The GLAD NiO electrodes showed negligible response to the common interferents in glucose measurement (uric acid, dopamine, serotonin, and ascorbic acid), and they were not poisoned by high amounts of sodium chloride. Graphical abstract The figures depict (A) SEM image of vertical post-GLAD NiO electrodes used for non-enzymatic electrochemical glucose monitoring, and (B) calibration plots of the three different electrodes.
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Qin Y, Chen F, Halder A, Zhang M. Free‐Standing NiO Nanosheets as Non‐Enzymatic Electrochemical Sensors. ChemistrySelect 2020. [DOI: 10.1002/slct.201904511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yanan Qin
- College Life Science & Technology Xinjiang University 830046 Shengli Road Urumqi China
- Department of Plant and Environmental Sciences University of Copenhagen, Thorvaldsensvej 40 DK-1871 Frederiksberg C Denmark
| | - Fei Chen
- College Life Science & Technology Xinjiang University 830046 Shengli Road Urumqi China
| | - Arnab Halder
- Department of Chemistry Technical University of Denmark DK-2800 Kongens Lyngby Denmark
| | - Minwei Zhang
- College Life Science & Technology Xinjiang University 830046 Shengli Road Urumqi China
- Department of Chemistry Technical University of Denmark DK-2800 Kongens Lyngby Denmark
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Hosseinian M, Darzi GN, Rahimpour A. A Novel Bioelectrochemical Sensor Based on Immobilized Urease on the Surface of Nickel Oxide Nanoparticle and Polypyrrole Composite Modified Pt Electrode. ELECTROANAL 2019. [DOI: 10.1002/elan.201800862] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maliheh Hosseinian
- Faculty of Chemical EngineeringBabol Noshirvani University of Technology 47148–71167 Babol Iran
| | - Ghasem Najafpour Darzi
- Faculty of Chemical EngineeringBabol Noshirvani University of Technology 47148–71167 Babol Iran
| | - Ahmad Rahimpour
- Faculty of Chemical EngineeringBabol Noshirvani University of Technology 47148–71167 Babol Iran
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A New Calibration Circuit Design to Reduce Drift Effect of RuO 2 Urea Biosensors. SENSORS 2019; 19:s19204558. [PMID: 31635177 PMCID: PMC6832896 DOI: 10.3390/s19204558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/11/2019] [Accepted: 10/18/2019] [Indexed: 12/20/2022]
Abstract
The goal of this study was to reduce the drift effect of RuO2 urea biosensors. A new calibration circuit (NCC) based on the voltage regulation technique with the advantage of having a simple structure was presented. To keep its simplicity, the proposed NCC was composed of a non-inverting amplifier and a voltage calibrating circuit. A ruthenium oxide (RuO2) urea biosensor was fabricated to test the calibrating characteristics of the drift rate of the proposed NCC. The experiment performed in this study was divided into two main stages. For the first stage, a sound RuO2 urea biosensor testing environment was set-up. The RuO2 urea sensing film was immersed in the urea solution for 12 h and the response voltage was measured using the voltage-time (V-T) measurement system and the proposed NCC. The results of the first stage showed that the RuO2 urea biosensor has an average sensitivity of 1.860 mV/(mg/dL) and has a linearity of 0.999 which means that the RuO2 urea biosensor had been well fabricated. The second stage of the experiment verified the proposed NCC's functions, and the results indicated that the proposed NCC reduced the drift rate of RuO2 urea biosensor to 0.02 mV/hr (98.77% reduction).
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The Analysis of the Urea Biosensors Using Different Sensing Matrices via Wireless Measurement System & Microfluidic Measurement System. SENSORS 2019; 19:s19133004. [PMID: 31288406 PMCID: PMC6651631 DOI: 10.3390/s19133004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 06/29/2019] [Accepted: 07/05/2019] [Indexed: 01/10/2023]
Abstract
Two types of urea biosensors were integrated with a wireless measurement system and microfluidic measurement system. The two biosensors used were (i) a magnetic beads (MBs)-urease/graphene oxide (GO)/titanium dioxide (TiO2)-based biosensor and (ii) an MBs-urease/GO/ nickel oxide (NiO)-based biosensor, respectively. The wireless measurement system work exhibited the feasibility for the remote detection of urea, but it will require refinement and modification to improve stability and precision. The microchannel fluidic system showed the measurement reliability. The sensing properties of urea biosensors at different flow rates were investigated. From the measurement results, the decay of average sensitivity may be attributed to the induced vortex-induced vibrations (VIV) at the high flow rate. In the aspect of wireless monitoring, the average sensitivity of the urea biosensor based on MBs-urease/GO/NiO was 4.780 mV/(mg/dl) and with the linearity of 0.938. In the aspect of measurement under dynamic conditions, the average sensitivity of the urea biosensor based on MBs-urease/GO/NiO were 5.582 mV/(mg/dl) and with the linearity of 0.959. Both measurements performed NiO was better than TiO2 according to the comparisons.
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Wan Khalid WEF, Mat Arip MN, Jasmani L, Lee YH. A New Sensor for Methyl Paraben Using an Electrode Made of a Cellulose Nanocrystal-Reduced Graphene Oxide Nanocomposite. SENSORS 2019; 19:s19122726. [PMID: 31216625 PMCID: PMC6630541 DOI: 10.3390/s19122726] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/31/2019] [Accepted: 06/05/2019] [Indexed: 12/20/2022]
Abstract
A new cellulose nanocrystal-reduced graphene oxide (CNC-rGO) nanocomposite was successfully used for mediatorless electrochemical sensing of methyl paraben (MP). Fourier-transform infrared spectroscopy (FTIR) and field-emission scanning electron microscopy (FESEM) studies confirmed the formation of the CNC-rGO nanocomposite. Cyclic voltammetry (CV) studies of the nanocomposite showed quasi-reversible redox behavior. Differential pulse voltammetry (DPV) was employed for the sensor optimization. Under optimized conditions, the sensor demonstrated a linear calibration curve in the range of 2 × 10-4-9 × 10-4 M with a limit of detection (LOD) of 1 × 10-4 M. The MP sensor showed good reproducibility with a relative standard deviation (RSD) of about 8.20%. The sensor also exhibited good stability and repeatability toward MP determinations. Analysis of MP in cream samples showed recovery percentages between 83% and 106%. Advantages of this sensor are the possibility for the determination of higher concentrations of MP when compared with most other reported sensors for MP. The CNC-rGO nanocomposite-based sensor also depicted good reproducibility and reusability compared to the rGO-based sensor. Furthermore, the CNC-rGO nanocomposite sensor showed good selectivity toward MP with little interference from easily oxidizable species such as ascorbic acid.
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Affiliation(s)
- Wan Elina Faradilla Wan Khalid
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
- Faculty of Applied Sciences, Universiti Teknologi MARA Negeri Sembilan, Kuala Pilah Campus, Pekan Parit Tinggi, Kuala Pilah 72000, Negeri Sembilan, Malaysia.
| | | | - Latifah Jasmani
- Forest Products Division, Forest Research Institute Malaysia, Selangor 52109, Malaysia.
| | - Yook Heng Lee
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
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Xiang W, Dong Z, Luo Y, Zhao J, Wang JO, Ibrahim K, Zhan H, Yue W, Guo H. Synthesis of NiO Nanotubes via a Dynamic Thermal Oxidation Process. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E805. [PMID: 30857195 PMCID: PMC6427637 DOI: 10.3390/ma12050805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 11/26/2022]
Abstract
Nickel oxide (NiO) nanotubes were synthesized via a thermal oxidation process from Ni nanowires. The effects of oxidation temperature on the morphology, microstructures, and composition of nanowires were investigated using scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The results show that the Ni nanowires convert initially to Ni/NiO core-shell nanowires with increasing annealing temperatures, and then to the nanotubes at the critical transition temperature of about 425 °C. Our findings provide useful information for the preparation of NiO nanotubes to meet the required applications.
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Affiliation(s)
- Wenfeng Xiang
- State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China.
| | - Zibin Dong
- State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China.
- School of Physical Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Yi Luo
- School of Physical Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Jiali Zhao
- Beijing Synchrotron Radiation Facility Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Jia-Ou Wang
- Beijing Synchrotron Radiation Facility Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Kurash Ibrahim
- Beijing Synchrotron Radiation Facility Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Haihong Zhan
- Department of Biochemistry, Pingdingshan Vocational and Technical College, Pingdingshan 467000, China.
| | - Wenzheng Yue
- State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China.
| | - Haizhong Guo
- School of Physical Engineering, Zhengzhou University, Zhengzhou 450001, China.
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17
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He G, Tian L, Cai Y, Wu S, Su Y, Yan H, Pu W, Zhang J, Li L. Sensitive Nonenzymatic Electrochemical Glucose Detection Based on Hollow Porous NiO. NANOSCALE RESEARCH LETTERS 2018; 13:3. [PMID: 29318400 PMCID: PMC5760490 DOI: 10.1186/s11671-017-2406-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/06/2017] [Indexed: 06/07/2023]
Abstract
Transition metal oxides (TMOs) have attracted extensive research attentions as promising electrocatalytic materials. Despite low cost and high stability, the electrocatalytic activity of TMOs still cannot satisfy the requirements of applications. Inspired by kinetics, the design of hollow porous structure is considered as a promising strategy to achieve superior electrocatalytic performance. In this work, cubic NiO hollow porous architecture (NiO HPA) was constructed through coordinating etching and precipitating (CEP) principle followed by post calcination. Being employed to detect glucose, NiO HPA electrode exhibits outstanding electrocatalytic activity in terms of high sensitivity (1323 μA mM-1 cm-2) and low detection limit (0.32 μM). The excellent electrocatalytic activity can be ascribed to large specific surface area (SSA), ordered diffusion channels, and accelerated electron transfer rate derived from the unique hollow porous features. The results demonstrate that the NiO HPA could have practical applications in the design of nonenzymatic glucose sensors. The construction of hollow porous architecture provides an effective nanoengineering strategy for high-performance electrocatalysts.
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Affiliation(s)
- Gege He
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China
- Faculty of Materials and Energy, Southwest University, Chongqing, People's Republic of China
| | - Liangliang Tian
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China.
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China.
| | - Yanhua Cai
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China
| | - Shenping Wu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
| | - Yongyao Su
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China
| | - Hengqing Yan
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China
| | - Wanrong Pu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China
| | - Jinkun Zhang
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China
| | - Lu Li
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People's Republic of China.
- Co-innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing, People's Republic of China.
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18
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Naderi Asrami P, Saber Tehrani M, Aberoomand Azar P, Mozaffari SA. Impedimetric glucose biosensor based on nanostructure nickel oxide transducer fabricated by reactive RF magnetron sputtering system. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.07.052] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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19
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Dumala N, Mangalampalli B, Kalyan Kamal SS, Grover P. Biochemical alterations induced by nickel oxide nanoparticles in female Wistar albino rats after acute oral exposure. Biomarkers 2017; 23:33-43. [DOI: 10.1080/1354750x.2017.1360943] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Naresh Dumala
- Toxicology Unit, Pharmacology and Toxicology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Bhanuramya Mangalampalli
- Toxicology Unit, Pharmacology and Toxicology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | | | - Paramjit Grover
- Toxicology Unit, Pharmacology and Toxicology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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20
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Kaur G, Tomar M, Gupta V. Nanostructured NiO-based reagentless biosensor for total cholesterol and low density lipoprotein detection. Anal Bioanal Chem 2017; 409:1995-2005. [DOI: 10.1007/s00216-016-0147-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/29/2016] [Accepted: 12/12/2016] [Indexed: 10/20/2022]
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21
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Meng S, Wu M, Wang Q, Dai Z, Si W, Huang W, Dong X. Cobalt oxide nanosheets wrapped onto nickel foam for non-enzymatic detection of glucose. NANOTECHNOLOGY 2016; 27:344001. [PMID: 27407035 DOI: 10.1088/0957-4484/27/34/344001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ultra-sensitive and highly selective detection of glucose is essential for the clinical diagnosis of diabetes. In this paper, an ultra-sensitive glucose sensor was successfully fabricated based on cobalt oxide (Co3O4) nanosheets directly grown on nickel foam through a simple hydrothermal method. Characterizations indicated that the Co3O4 nanosheets are completely and uniformly wrapped onto the surface of nickel foam to form a three-dimensional heterostructure. The resulting self-standing electrochemical electrode presents a high performance for the non-enzymatic detection of glucose, including short response time (<10 s), ultra-sensitivity (12.97 mA mM(-1) cm(-2)), excellent selectivity and low detection limit (0.058 μM, S/N = 3). These results indicate that Co3O4 nanosheets wrapped onto nickel foam are a low-cost, practical, and high performance electrochemical electrode for bio sensing.
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Affiliation(s)
- Shangjun Meng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, People's Republic of China
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22
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Enhanced Non-enzymatic amperometric sensing of glucose using Co(OH)2 nanorods deposited on a three dimensional graphene network as an electrode material. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1890-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Realization of a label-free electrochemical immunosensor for detection of low density lipoprotein using NiO thin film. Biosens Bioelectron 2016; 80:294-299. [DOI: 10.1016/j.bios.2016.01.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/15/2016] [Accepted: 01/28/2016] [Indexed: 11/20/2022]
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24
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Deng HH, Hong GL, Lin FL, Liu AL, Xia XH, Chen W. Colorimetric detection of urea, urease, and urease inhibitor based on the peroxidase-like activity of gold nanoparticles. Anal Chim Acta 2016; 915:74-80. [DOI: 10.1016/j.aca.2016.02.008] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/30/2016] [Accepted: 02/04/2016] [Indexed: 10/22/2022]
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25
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Kannan P, Maiyalagan T, Marsili E, Ghosh S, Niedziolka-Jönsson J, Jönsson-Niedziolka M. Hierarchical 3-dimensional nickel-iron nanosheet arrays on carbon fiber paper as a novel electrode for non-enzymatic glucose sensing. NANOSCALE 2016; 8:843-55. [PMID: 26578259 DOI: 10.1039/c5nr06802a] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Three-dimensional nickel-iron (3-D/Ni-Fe) nanostructures are exciting candidates for various applications because they produce more reaction-active sites than 1-D and 2-D nanostructured materials and exhibit attractive optical, electrical and catalytic properties. In this work, freestanding 3-D/Ni-Fe interconnected hierarchical nanosheets, hierarchical nanospheres, and porous nanospheres are directly grown on a flexible carbon fiber paper (CFP) substrate by a single-step hydrothermal process. Among the nanostructures, 3-D/Ni-Fe interconnected hierarchical nanosheets show excellent electrochemical properties because of its high conductivity, large specific active surface area, and mesopores on its walls (vide infra). The 3-D/Ni-Fe hierarchical nanosheet array modified CFP substrate is further explored as a novel electrode for electrochemical non-enzymatic glucose sensor application. The 3-D/Ni-Fe hierarchical nanosheet arrays exhibit significant catalytic activity towards the electrochemical oxidation of glucose, as compared to the 3-D/Ni-Fe hierarchical nanospheres, and porous nanospheres. The 3-D/Ni-Fe hierarchical nanosheet arrays can access a large amount of glucose molecules on their surface (mesopore walls) for an efficient electrocatalytic oxidation process. Moreover, 3-D/Ni-Fe hierarchical nanosheet arrays showed higher sensitivity (7.90 μA μM(-1) cm(-2)) with wide linear glucose concentration ranging from 0.05 μM to 0.2 mM, and the low detection limit (LOD) of 0.031 μM (S/N = 3) is achieved by the amperometry method. Further, the 3-D/Ni-Fe hierarchical nanosheet array modified CFP electrode can be demonstrated to have excellent selectivity towards the detection of glucose in the presence of 500-fold excess of major important interferents. All these results indicate that 3-D/Ni-Fe hierarchical nanosheet arrays are promising candidates for non-enzymatic glucose sensing.
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Affiliation(s)
- Palanisamy Kannan
- Institute of Physical Chemistry, Polish Academy of Sciences, 44/52 ul. Kasprzaka, 01-224 Warsaw, Poland. and Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, 60 Nanyang Drive, SBS-01N-27, Singapore.
| | | | - Enrico Marsili
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, 60 Nanyang Drive, SBS-01N-27, Singapore.
| | - Srabanti Ghosh
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata-700098, India
| | - Joanna Niedziolka-Jönsson
- Institute of Physical Chemistry, Polish Academy of Sciences, 44/52 ul. Kasprzaka, 01-224 Warsaw, Poland.
| | - Martin Jönsson-Niedziolka
- Institute of Physical Chemistry, Polish Academy of Sciences, 44/52 ul. Kasprzaka, 01-224 Warsaw, Poland.
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26
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Cao X, Wang K, Du G, Asiri AM, Ma Y, Lu Q, Sun X. One-step electrodeposition of a nickel cobalt sulfide nanosheet film as a highly sensitive nonenzymatic glucose sensor. J Mater Chem B 2016; 4:7540-7544. [DOI: 10.1039/c6tb01736c] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrodeposited nickel cobalt sulfide nanosheet film acts as a nonenzymatic glucose sensor with wide linear response range of 0.001–3 mM, low detection limit of 0.12 μM, high sensitivity of 3291.5 μA mM−1 cm−2, as well as good selectivity and long-term stability.
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Affiliation(s)
- Xiaoqin Cao
- Department of Chemistry and Chemical Engineering
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Kunyang Wang
- Chengdu Institute of Geology and Mineral Resources
- Chengdu 610081
- China
| | - Gu Du
- Chengdu Institute of Geology and Mineral Resources
- Chengdu 610081
- China
| | - Abdullah M. Asiri
- Chemistry Department
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Yongjun Ma
- Analytical and Test Center
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Qun Lu
- Department of Chemistry and Chemical Engineering
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Xuping Sun
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
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27
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Ding S, Cargill AA, Medintz IL, Claussen JC. Increasing the activity of immobilized enzymes with nanoparticle conjugation. Curr Opin Biotechnol 2015; 34:242-50. [PMID: 25957941 DOI: 10.1016/j.copbio.2015.04.005] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 04/03/2015] [Accepted: 04/07/2015] [Indexed: 12/16/2022]
Abstract
The efficiency and selectivity of enzymatic catalysis is useful to a plethora of industrial and manufacturing processes. Many of these processes require the immobilization of enzymes onto surfaces, which has traditionally reduced enzyme activity. However, recent research has shown that the integration of nanoparticles into enzyme carrier schemes has maintained or even enhanced immobilized enzyme performance. The nanoparticle size and surface chemistry as well as the orientation and density of immobilized enzymes all contribute to the enhanced performance of enzyme-nanoparticle conjugates. These improvements are noted in specific nanoparticles including those comprising carbon (e.g., graphene and carbon nanotubes), metal/metal oxides and polymeric nanomaterials, as well as semiconductor nanocrystals or quantum dots.
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Affiliation(s)
- Shaowei Ding
- Department of Mechanical Engineering, 2104 Black Engineering, Ames, IA 50011, United States
| | - Allison A Cargill
- Department of Mechanical Engineering, 2104 Black Engineering, Ames, IA 50011, United States
| | - Igor L Medintz
- Center for Bio/Molecular Science & Engineering, US Naval Research Laboratory, Washington, DC 20375, United States
| | - Jonathan C Claussen
- Department of Mechanical Engineering, 2104 Black Engineering, Ames, IA 50011, United States.
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28
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Ramesh R, Puhazhendi P, Kumar J, Gowthaman MK, D'Souza SF, Kamini NR. Potentiometric biosensor for determination of urea in milk using immobilized Arthrobacter creatinolyticus urease. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:786-792. [DOI: 10.1016/j.msec.2015.01.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 12/23/2014] [Accepted: 01/10/2015] [Indexed: 10/24/2022]
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29
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Wang PY, Bennetsen DT, Foss M, Ameringer T, Thissen H, Kingshott P. Modulation of human mesenchymal stem cell behavior on ordered tantalum nanotopographies fabricated using colloidal lithography and glancing angle deposition. ACS APPLIED MATERIALS & INTERFACES 2015; 7:4979-4989. [PMID: 25664369 DOI: 10.1021/acsami.5b00107] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Ordered surface nanostructures have attracted much attention in biotechnology and biomedical engineering because of their potential to modulate cell-surface interactions in a controllable manner. However, the ability to fabricate large area ordered nanostructures is limited because of high costs and low speed of fabrication. Here, we have fabricated ordered nanostructures with large surface areas (1.5 × 1.5 cm(2)) using a combination of facile techniques including colloidal self-assembly, colloidal lithography and glancing angle deposition (GLAD). Polystyrene (722 nm) colloids were self-assembled into a hexagonally close-packed (hcp) crystal array at the water-air interface, transferred on a biocompatible tantalum (Ta) surface and used as a mask to generate an ordered Ta pattern. The Ta was deposited by sputter coating through the crystal mask creating approximately 60-nm-high feature sizes. The feature size was further increased by approximately 200-nm-height respectively using GLAD, resulting in the fabrication of four different surfaces (FLAT, Ta60, GLAD100, and GLAD200). Cell adhesion, proliferation, and osteogenic differentiation of primary human adipose-derived stem cells (hADSCs) were studied on these ordered nanostructures for up to 2 weeks. Our results suggested that cell spreading, focal adhesion formation, and filopodia extension of hADSCs were inhibited on the GLAD surfaces, while the growth rate was similar between each surface. Immunostaining for type I collagen (COL1) and osteocalcin (OC) showed that there was higher osteogenic components deposited on the GLAD surfaces compared to the Ta60 and FLAT surfaces after 1 week of osteogenic culture. After 2 weeks of osteogenic culture, alkaline phosphatase (ALP) activity and the amount of calcium was higher on the GLAD surfaces. In addition, osteoblast-like cells were confluent on Ta60 and FLAT surfaces, whereas the GLAD surfaces were not fully covered suggesting that the cell-cell interactions are stronger than cell-substrate interactions on GLAD surfaces. Visible extracellular matrix deposits decorated the porous surface can be found on the GLAD surfaces. Depth profiling of surface components using a new Ar cluster source and X-ray photoelectron spectroscopy (XPS) showed that deposited extracellular matrix on GLAD surfaces is rich in nitrogen. The fabricated ordered surface nanotopographies have potential to be applied in diverse fields, and demonstrate that the behavior of human stem cells can be directed on these ordered nanotopographies, providing new knowledge for applications in biomaterials and tissue engineering.
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Affiliation(s)
- Peng-Yuan Wang
- Industrial Research Institute Swinburne (IRIS) and Department of Chemistry and Biotechnology, Swinburne University of Technology , Hawthorn, 3122 Victoria, Australia
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30
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Mai HD, Sung GY, Yoo H. Fabrication of nickel oxide nanostructures with high surface area and application for urease-based biosensor for urea detection. RSC Adv 2015. [DOI: 10.1039/c5ra14103f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
NiO nanostructures with high surface area were used to fabricate urease-based NiO biosensors for urea detection.
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Affiliation(s)
- Hien Duy Mai
- Department of Chemistry
- Hallym University
- Chuncheon
- Republic of Korea
| | - Gun Yong Sung
- Department of Materials Science and Engineering
- Hallym University
- Chuncheon
- Republic of Korea
| | - Hyojong Yoo
- Department of Chemistry
- Hallym University
- Chuncheon
- Republic of Korea
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31
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Zhan B, Liu C, Chen H, Shi H, Wang L, Chen P, Huang W, Dong X. Free-standing electrochemical electrode based on Ni(OH)2/3D graphene foam for nonenzymatic glucose detection. NANOSCALE 2014; 6:7424-9. [PMID: 24879425 DOI: 10.1039/c4nr01611d] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Three-dimensional graphene foam (3DGF) is a superior sensing material because of its high conductivity, large specific surface area and wide electrochemical potential windows. In this work, hexagonal Ni(OH)2 nanosheets are deposited on the surface of chemical vapor deposition-grown 3DGF through a facial hydrothermal process without any auxiliary reagents. The morphology and structure of the composite are characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), Raman spectroscopy, and X-ray diffraction (XRD). Based on the Ni(OH)2/3DGF composite, a free-standing electrochemical electrode is fabricated. Being employed as a nonenzymatic glucose detection electrochemical electrode, it exhibits a high sensitivity (∼2.65 mA mM(-1) cm(-2)), low detection limit (0.34 μM) and excellent selectivity with a linear response from 1 μM to 1.17 mM. The excellent sensing properties of the Ni(OH)2/3DGF electrode may be attributed to the synergistic effect of the high electrocatalytic activity of Ni(OH)2 nanosheets and the high conductivity and large surface area of 3DGF.
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Affiliation(s)
- Beibei Zhan
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
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