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Kaur G, Bhari R, Kumar K. Nanobiosensors and their role in detection of adulterants and contaminants in food products. Crit Rev Biotechnol 2024; 44:547-561. [PMID: 36842973 DOI: 10.1080/07388551.2023.2175196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 01/03/2023] [Accepted: 01/17/2023] [Indexed: 02/28/2023]
Abstract
Nanotechnology is a multifaceted technical and scientific field undergoing a fast expansion. Nanoparticles, quantum dots, nanotubes, nanorods, nanowires, nanochips and many more are being increasingly used for fabrication of nanosensors and nanobiosensors to increase the sensitivity and selectivity of reactions. Food safety is an extremely important concern in food industries since it is directly associated with effect of food on human health. Here in our review, we have not only described the newest information regarding methods and use of nanomaterials for construction of nanosensors but also their detection range, limit of detection (LOD) and applications for food safety. Precise nanosensors having improved sensitivity and low limit of detection were discussed in brief. Review is primarily focused on nanosensors employed for detection of adulterants and contaminants in food products such as meat products, milk, fruit juices and water samples.
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Affiliation(s)
- Gurlovleen Kaur
- Department of Biotechnology and Food Technology, M. M. Modi College, Patiala, Punjab, India
- Department of Biotechnology and Food Technology, Punjabi University, Patiala, Punjab, India
| | - Ranjeeta Bhari
- Department of Biotechnology and Food Technology, Punjabi University, Patiala, Punjab, India
| | - Kuldeep Kumar
- Department of Biotechnology and Food Technology, M. M. Modi College, Patiala, Punjab, India
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2
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Al-Shami A, Amirghasemi F, Soleimani A, Khazaee Nejad S, Ong V, Berkmen A, Ainla A, Mousavi MPS. SPOOC (Sensor for Periodic Observation of Choline): An Integrated Lab-on-a-Spoon Platform for At-Home Quantification of Choline in Infant Formula. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311745. [PMID: 38587168 DOI: 10.1002/smll.202311745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/19/2024] [Indexed: 04/09/2024]
Abstract
Choline is an essential micronutrient for infants' brain development and health. To ensure that infants receive the needed daily dose of choline, the U.S. Food and Drug Administration (FDA) has set requirements for choline levels in commercialized infant formulas. Unfortunately, not all families can access well-regulated formulas, leading to potential inadequacies in choline intake. Economic constraints or difficulties in obtaining formulas, exacerbated by situations like COVID-19, prompt families to stretch formulas. Accurate measurement of choline in infant formulas becomes imperative to guarantee that infants receive the necessary nutritional support. Yet, accessible tools for this purpose are lacking. An innovative integrated sensor for the periodic observation of choline (SPOOC) designed for at-home quantification of choline in infants' formulas and milk powders is reported. This system is composed of a choline potentiometric sensor and ionic-liquid reference electrode developed on laser-induced graphene (LIG) and integrated into a spoon-like device. SPOOC includes a micro-potentiometer that conducts the measurements and transmits results wirelessly to parents' mobile devices. SPOOC demonstrated rapid and accurate assessment of choline levels directly in pre-consuming infant formulas without any sample treatment. This work empowers parents with a user-friendly tool for choline monitoring promoting informed nutritional decision-making in the care of infants.
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Affiliation(s)
- Abdulrahman Al-Shami
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Farbod Amirghasemi
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Ali Soleimani
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Sina Khazaee Nejad
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Victor Ong
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Alara Berkmen
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Alar Ainla
- International Iberian Nanotechnology Laboratory, 4715-330, Braga, Portugal
| | - Maral P S Mousavi
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
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3
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Zdarta J, Kołodziejczak-Radzimska A, Bachosz K, Rybarczyk A, Bilal M, Iqbal HMN, Buszewski B, Jesionowski T. Nanostructured supports for multienzyme co-immobilization for biotechnological applications: Achievements, challenges and prospects. Adv Colloid Interface Sci 2023; 315:102889. [PMID: 37030261 DOI: 10.1016/j.cis.2023.102889] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 03/14/2023] [Accepted: 03/26/2023] [Indexed: 03/31/2023]
Abstract
The synergistic combination of current biotechnological and nanotechnological research has turned to multienzyme co-immobilization as a promising concept to design biocatalysis engineering. It has also intensified the development and deployment of multipurpose biocatalysts, for instance, multienzyme co-immobilized constructs, via biocatalysis/protein engineering to scale-up and fulfil the ever-increasing industrial demands. Considering the characteristic features of both the loaded multienzymes and nanostructure carriers, i.e., selectivity, specificity, stability, resistivity, induce activity, reaction efficacy, multi-usability, high catalytic turnover, optimal yield, ease in recovery, and cost-effectiveness, multienzyme-based green biocatalysts have become a powerful norm in biocatalysis/protein engineering sectors. In this context, the current state-of-the-art in enzyme engineering with a synergistic combination of nanotechnology, at large, and nanomaterials, in particular, are significantly contributing and providing robust tools to engineer and/or tailor enzymes to fulfil the growing catalytic and contemporary industrial needs. Considering the above critics and unique structural, physicochemical, and functional attributes, herein, we spotlight important aspects spanning across prospective nano-carriers for multienzyme co-immobilization. Further, this work comprehensively discuss the current advances in deploying multienzyme-based cascade reactions in numerous sectors, including environmental remediation and protection, drug delivery systems (DDS), biofuel cells development and energy production, bio-electroanalytical devices (biosensors), therapeutical, nutraceutical, cosmeceutical, and pharmaceutical oriented applications. In conclusion, the continuous developments in nano-assembling the multienzyme loaded co-immobilized nanostructure carriers would be a unique way that could act as a core of modern biotechnological research.
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Affiliation(s)
- Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Agnieszka Kołodziejczak-Radzimska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Karolina Bachosz
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Agnieszka Rybarczyk
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Torun, Poland; Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
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Wet-chemically synthesis of SnO2-doped Ag2O nanostructured materials for sensitive detection of choline by an alternative electrochemical approach. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Abd El-Rahman MK, Mazzone G, Mahmoud AM, Sicilia E, Shoeib T. Novel choline selective electrochemical membrane sensor with application in milk powders and infant formulas. Talanta 2021; 221:121409. [DOI: 10.1016/j.talanta.2020.121409] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/09/2020] [Accepted: 07/11/2020] [Indexed: 01/25/2023]
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Kaçar C. Disposable Bienzymatic Choline Biosensor Based on MnO
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Nanoparticles Decorated Carbon Nanofibers and Poly(methylene green) Modified Screen Printed Carbon Electrode. ELECTROANAL 2020. [DOI: 10.1002/elan.202060010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ceren Kaçar
- Department of Chemistry Faculty of Science Ankara University Ankara TURKEY
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7
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Abstract
Choline oxidase catalyzes the four-electron, two-step, flavin-mediated oxidation of choline to glycine betaine. The enzyme is important both for medical and biotechnological reasons, because glycine betaine is one among a limited number of compatible solutes used by cells to counteract osmotic pressure. From a fundamental standpoint, choline oxidase has emerged as one of the paradigm enzymes for the oxidation of alcohols catalyzed by flavoproteins. Mechanistic, structural, and computational studies have elucidated the mechanism of action of the enzyme from Arthrobacter globiformis at the molecular level. Both choline and oxygen access to the active site cavity are gated and tightly controlled. Amino acid residues involved in substrate binding, and their contribution, have been identified. The mechanism of choline oxidation, with a hydride transfer reaction, an asynchronous transition state, the formation and stabilization of an alkoxide transient species, and a quantum mechanical mode of reaction, has been elucidated. The importance of nonpolar side chains for oxygen localization and of the positive charge harbored on the substrate for activation of oxygen for reaction with the reduced flavin have been recognized. Interesting phenomena, like the formation of a metastable photoinduced flavin-protein adduct, the reversible formation of a bicovalent flavoprotein, and the trapping of the enzyme in inactive conformations, have been described. This review summarizes the current status of our understanding on the structure-function-dynamics of choline oxidase.
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Affiliation(s)
- Giovanni Gadda
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, United States; Department of Biology, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, United States.
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Zhao L, Zhang Z, Chen M, Liu Y, Wang T, Li X. Fluorescent fibrous mats assembled with self-propagating probes for visual sensing of hydrogen peroxide and choline. Analyst 2019; 144:5624-5636. [PMID: 31432883 DOI: 10.1039/c9an01120j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Challenges remain in the facile, rapid and sensitive detection of substances at ultralow levels. In the current study, visual sensors of hydrogen peroxide (H2O2) and choline are developed via the integration of an ultrafine fibrous substrate and self-propagating and aggregation-induced emission (AIE) probes. Self-immolative probes (SIPs) composed of phenylboronic acid triggers and choline units are grafted on electrospun polyethylene terephthalate (PET) fibers, followed by electrostatic adsorption of tetraphenylethene derivatives (TPE-SO3) to obtain fluorescent PET-Ch/TPE fibers. Choline oxidase (ChOX) is immobilized on polystyrene-co-maleic anhydride (PSMA) fibers to obtain PSMA-ChOX, followed by assembly into PET-Ch/TPE@PSMA-ChOX composite mats. The presence of H2O2 initiates the cleavage of phenylboronic acid triggers in SIPs to release choline and choline/TPE complexes from PET-Ch/TPE fibers. The released choline is oxidized by PSMA-ChOX fibers to generate H2O2 that then activates a cascade of self-propagating reactions until the release of all choline/TPE complexes, leading to the alleviation of AIE effect and gradual fluorescence fading of fibrous mats. Thus, the hydrogen peroxide and choline concentrations can be read out from the fluorescence fading time of fibrous mats with a detection limit of 0.5 μM H2O2 within 30 min, providing potential self-test devices for a real-time, naked-eye and sensitive detection of bioactive substances.
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Affiliation(s)
- Long Zhao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China.
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Rahman MM, Alam MM, Asiri AM. Detection of toxic choline based on Mn2O3/NiO nanomaterials by an electrochemical method. RSC Adv 2019; 9:35146-35157. [PMID: 35530714 PMCID: PMC9074449 DOI: 10.1039/c9ra07459g] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 10/11/2019] [Indexed: 12/17/2022] Open
Abstract
In this study, a novel in situ choline sensor was assembled by attaching the binary Mn2O3/NiO nanoparticles (NPs) onto a glassy carbon electrode (GCE). Initially, Mn2O3/NiO NPs were synthesized via a wet-chemical process and fully characterized via XRD, XPS, FESEM, EDS, FTIR and UV-Vis methods. The analytical performances of the choline sensor were evaluated by an electrochemical method in the phosphate buffer phase. The estimated linear dynamic range (LDR) was found to be 0.1 nM to 0.1 mM. The other analytical performances of the choline sensor, such as sensitivity (16.4557 μA μM−1 cm−2) and detection limit (5.77 ± 0.29 pM), were also calculated very carefully from the calibration plot. Overall, the choline sensor exhibited a reliable reproducibility, in situ validity, selectivity, interference effect, stability, and intra-day and inter-day performances with high accuracy in a short response time. Moreover, the probe was successfully applied to detect choline in real human, mouse and rabbit serum. This fabrication route would be a novel approach for the detection of selective biochemical sensor in the healthcare and biomedical fields. In this study, a novel in situ choline sensor was assembled by attached the binary Mn2O3/NiO nanoparticles onto glassy carbon electrode, which might be a reliable way to develop of future sensor in the field of biomedical and healthcare fields.![]()
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - M. M. Alam
- Department of Chemical Engineering and Polymer Science
- Shahjalal University of Science and Technology
- Sylhet 3100
- Bangladesh
| | - Abdullah M. Asiri
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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11
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Abstract
A biosensor is a device composed by a biological recognition element and a transducer that delivers selective information about a specific analyte. Technological and scientific advances in the area of biology, bioengineering, catalysts, electrochemistry, nanomaterials, microelectronics, and microfluidics have improved the design and performance of better biosensors. Enzymatic biosensors based on lipases, esterases, and phospholipases are valuable analytical apparatus which have been applied in food industry, oleochemical industry, biodegradable polymers, environmental science, and overall the medical area as diagnostic tools to detect cholesterol and triglyceride levels in blood samples. This chapter reviews recent developments and applications of lipase-, esterase-, and phospholipase-based biosensors.
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Affiliation(s)
- Georgina Sandoval
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C. (CIATEJ), Guadalajara, Jalisco, Mexico
| | - Enrique J Herrera-López
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C. (CIATEJ), Zapopan, Jalisco, Mexico.
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12
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Bu X, Fu Y, Jin H, Gui R. Specific enzymatic synthesis of 2,3-diaminophenazine and copper nanoclusters used for dual-emission ratiometric and naked-eye visual fluorescence sensing of choline. NEW J CHEM 2018. [DOI: 10.1039/c8nj03927e] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This work reports a novel biosensor for dual-emission ratiometric and visual fluorescence detection of choline.
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Affiliation(s)
- Xiangning Bu
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
| | - Yongxin Fu
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
| | - Hui Jin
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
| | - Rijun Gui
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
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13
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Advances in Nano Based Biosensors for Food and Agriculture. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2018. [DOI: 10.1007/978-3-319-70166-0_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Verma ML. Enzymatic Nanobiosensors in the Agricultural and Food Industry. SUSTAINABLE AGRICULTURE REVIEWS 2017. [DOI: 10.1007/978-3-319-53112-0_7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Zhang QM, Berg D, Duan J, Mugo SM, Serpe MJ. Optical Devices Constructed from Ferrocene-Modified Microgels for H 2O 2 Sensing. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27264-27269. [PMID: 27680293 DOI: 10.1021/acsami.6b11462] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ferrocene-modified poly(N-isopropylacrylamide)-based microgels were synthesized, characterized, and used to construct optical devices (etalons). The response of the microgels and etalons to H2O2 was investigated, and we show that both the microgel diameter and the optical properties of the etalons depend on the solution concentration of H2O2 from 0.6 to 35 mM. This behavior is a direct result of the oxidation of ferrocene, which influences the microgel diameter. This was also demonstrated by electrochemical-mediated oxidation/reduction of ferrocene using cyclic voltammetry. We go on to show that these materials could be used to monitor H2O2 that is generated from enzymatic reactions. Specifically, we show that the H2O2 generated from the oxidation of glucose catalyzed by glucose oxidase could be quantified. Finally, the devices can be reused multiple times via a regeneration process. This investigation illustrates the versatility of the etalon system to detect species of broad relevance and how they could potentially be used to quantify products of biological reactions.
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Affiliation(s)
- Qiang Matthew Zhang
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Darren Berg
- Physical Sciences Department, MacEwan University , Edmonton, AB T5J 4S2, Canada
| | - Jiaqi Duan
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Samuel M Mugo
- Physical Sciences Department, MacEwan University , Edmonton, AB T5J 4S2, Canada
| | - Michael J Serpe
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
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Thiagarajan V, Madhurantakam S, Sethuraman S, Balaguru Rayappan JB, Maheswari Krishnan U. Nano interfaced biosensor for detection of choline in triple negative breast cancer cells. J Colloid Interface Sci 2016; 462:334-40. [DOI: 10.1016/j.jcis.2015.10.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 10/22/2022]
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17
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Chen H, Lu Q, Liao J, Yuan R, Chen S. Anodic electrogenerated chemiluminescence behavior and the choline biosensing application of blue emitting conjugated polymer dots. Chem Commun (Camb) 2016; 52:7276-9. [DOI: 10.1039/c6cc02182d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The anodic electrochemiluminescence (ECL) behavior of poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) dots was studied and applied in oxidoreductase-based ECL biosensing using Chox as the model enzyme.
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Affiliation(s)
- Hongmei Chen
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Qiyi Lu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jiayao Liao
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Shihong Chen
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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Pal S, Bhand S. Zinc oxide nanoparticle-enhanced ultrasensitive chemiluminescence immunoassay for the carcinoma embryonic antigen. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1489-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Zscharnack K, Kreisig T, Prasse AA, Zuchner T. A homogeneous assay principle for universal substrate quantification via hydrogen peroxide producing enzymes. Anal Chim Acta 2015; 854:145-52. [PMID: 25479878 DOI: 10.1016/j.aca.2014.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/27/2014] [Accepted: 11/07/2014] [Indexed: 11/24/2022]
Abstract
H2O2 is a widely occurring molecule which is also a byproduct of a number of enzymatic reactions. It can therefore be used to quantify the corresponding enzymatic substrates. In this study, the time-resolved fluorescence emission of a previously described complex consisting of phthalic acid and terbium (III) ions (PATb) is used for H2O2 detection. In detail, glucose oxidase and choline oxidase convert glucose and choline, respectively, to generate H2O2 which acts as a quencher for the PATb complex. The response time of the PATb complex toward H2O2 is immediate and the assay time only depends on the conversion rate of the enzymes involved. The PATb assay quantifies glucose in a linear range of 0.02-10 mmol L(-1), and choline from 1.56 to 100 μmol L(-1) with a detection limit of 20 μmol L(-1) for glucose and 1.56 μmol L(-1) for choline. Both biomolecules glucose and choline could be detected without pretreatment with good precision and reproducibility in human serum samples and infant formula, respectively. Furthermore, it is shown that the detected glucose concentrations by the PATb system agree with the results of a commercially available assay. In principle, the PATb system is a universal and versatile tool for the quantification of any substrate and enzyme reaction where H2O2 is involved.
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Affiliation(s)
- Kristin Zscharnack
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany
| | - Thomas Kreisig
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany
| | - Agneta A Prasse
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany
| | - Thole Zuchner
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany; Center for Biotechnology and Biomedicine, Universität Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany.
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