1
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Zhao X, Guan X, Lu Q, Yan X, Zenobi R. Rapid detection of aflatoxin B1, zearalenone and ochratoxin A in grains by thermal desorption dielectric barrier discharge ionization mass spectrometry. Analyst 2024. [PMID: 39189650 DOI: 10.1039/d4an00977k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Dielectric barrier discharge ionization is increasingly used for rapid detection in ambient mass spectrometry, although more often for gaseous and highly volatile samples than for solids and liquids. In this project, we present a rapid and sensitive method for detecting mycotoxins and demonstrate its capability for the detection of aflatoxin B1, zearalenone, and ochratoxin A in food samples. Our method is based on thermal desorption coupled to dielectric barrier discharge ionization mass spectrometry (TD-DBDI-MS), which we show generates minimal interferences and produces almost exclusively molecular ions. We detected mycotoxins in various food samples, including corn, peanuts, millet, and rice. Our method has a linear dynamic range of 1 μg kg-1 to 100 μg kg-1 for all three mycotoxins and a limit of detection (LOD) of 0.31 μg kg-1, 0.28 μg kg-1 and 0.43 μg kg-1, respectively. It is simple, rapid, reduces the pretreatment steps and has significant potential for practical applications.
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Affiliation(s)
- Xiangxu Zhao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Xiaokang Guan
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Qiao Lu
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Xiaowen Yan
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Renato Zenobi
- Chemistry and Applied Biosciences, ETH Zurich, Zurich CH8093, Switzerland.
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2
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Bahari HR, Mousavi Khaneghah A, Eş I. Upconversion nanoparticles-modified aptasensors for highly sensitive mycotoxin detection for food quality and safety. Compr Rev Food Sci Food Saf 2024; 23:e13369. [PMID: 38767851 DOI: 10.1111/1541-4337.13369] [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: 12/28/2023] [Revised: 03/29/2024] [Accepted: 04/26/2024] [Indexed: 05/22/2024]
Abstract
Mycotoxins, highly toxic and carcinogenic secondary metabolites produced by certain fungi, pose significant health risks as they contaminate food and feed products globally. Current mycotoxin detection methods have limitations in real-time detection capabilities. Aptasensors, incorporating aptamers as specific recognition elements, are crucial for mycotoxin detection due to their remarkable sensitivity and selectivity in identifying target mycotoxins. The sensitivity of aptasensors can be improved by using upconversion nanoparticles (UCNPs). UCNPs consist of lanthanide ions in ceramic host, and their ladder-like energy levels at f-orbitals have unique photophysical properties, including converting low-energy photons to high-energy emissions by a series of complex processes and offering sharp, low-noise, and sensitive near-infrared to visible detection strategy to enhance the efficacy of aptasensors for novel mycotoxin detection. This article aims to review recent reports on the scope of the potential of UCNPs in mycotoxin detection, focusing on their integration with aptasensors to give readers clear insight. We briefly describe the upconversion photoluminescence (UCPL) mechanism and relevant energy transfer processes influencing UCNP design and optimization. Furthermore, recent studies and advancements in UCNP-based aptasensors will be reviewed. We then discuss the potential impact of UCNP-modified aptasensors on food safety and present an outlook on future directions and challenges in this field. This review article comprehensively explains the current state-of-the-art UCNP-based aptasensors for mycotoxin detection. It provides insights into potential applications by addressing technical and practical challenges for practical implementation.
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Affiliation(s)
- Hamid-Reza Bahari
- Center of Innovation for Green and High Technologies, Tehran, Iran
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Ankara, Turkey
| | | | - Ismail Eş
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford, UK
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3
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Jamshidnejad-Tosaramandani T, Kashanian S, Babaei M, Al-Sabri MH, Schiöth HB. The Potential Effect of Insulin on AChE and Its Interactions with Rivastigmine In Vitro. Pharmaceuticals (Basel) 2021; 14:ph14111136. [PMID: 34832918 PMCID: PMC8617642 DOI: 10.3390/ph14111136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 12/14/2022] Open
Abstract
There is no definite cure for Alzheimer’s disease (AD) due to its multifactorial origin. Drugs that inhibit acetylcholinesterase (AChE), such as rivastigmine, are promising symptomatic treatments for AD. Emerging evidence suggests that insulin therapy can hinder several aspects of AD pathology. Insulin has been shown to modify the activity of AChE, but it is still unknown how insulin and AChE interact. Combination therapy, which targets several features of the disease based on existing medications, can provide a worthy therapy option for AD management. However, to date, no studies have examined the potential interaction of insulin with AChE and/or rivastigmine in vitro. In the present study, we employed the Response Surface Methodology (RSM) as an in vitro assessment to investigate the effect of insulin on both AChE activity and rivastigmine inhibitory action using a common spectrophotometric assay for cholinesterase activity, Ellman’s method. Our results showed that insulin, even at high concentrations, has an insignificant effect on both the activity of AChE and rivastigmine’s inhibitory action. The variance of our data is near zero, which means that the dispersion is negligible. However, to improve our understanding of the possible interaction of insulin and rivastigmine, or its target AChE, more in silico modelling and in vivo studies are needed.
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Affiliation(s)
- Tahereh Jamshidnejad-Tosaramandani
- Nanobiotechnology Department, Faculty of Innovative Science and Technology, Razi University, Kermanshah 6714414971, Iran;
- Department of Biology, Faculty of Science, Razi University, Kermanshah 6714414971, Iran;
- Department of Neuroscience, Functional Pharmacology, University of Uppsala, BMC, Husargatan 3, Box 593, 751 24 Uppsala, Sweden; (M.H.A.-S.); (H.B.S.)
| | - Soheila Kashanian
- Nanobiotechnology Department, Faculty of Innovative Science and Technology, Razi University, Kermanshah 6714414971, Iran;
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Science, Kermanshah 6734667149, Iran
- Faculty of Chemistry, Sensor and Biosensor Research Center (SBRC), Razi University, Kermanshah 6714414971, Iran
- Correspondence: ; Tel./Fax: +98-833-4274559
| | - Mahsa Babaei
- Department of Biology, Faculty of Science, Razi University, Kermanshah 6714414971, Iran;
| | - Mohamed H. Al-Sabri
- Department of Neuroscience, Functional Pharmacology, University of Uppsala, BMC, Husargatan 3, Box 593, 751 24 Uppsala, Sweden; (M.H.A.-S.); (H.B.S.)
| | - Helgi B. Schiöth
- Department of Neuroscience, Functional Pharmacology, University of Uppsala, BMC, Husargatan 3, Box 593, 751 24 Uppsala, Sweden; (M.H.A.-S.); (H.B.S.)
- Institute for Translational Medicine and Biotechnology, I.M. Sechenov First Moscow State Medical University, Trubetskay Str. 8, bldg 2, 119991 Moscow, Russia
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Refaey MS, Abdelhamid RA, Elimam H, Elshaier YAMM, Ali AA, Orabi MAA. Bioactive constituents from Thunbergia erecta as potential anticholinesterase and anti-ageing agents: Experimental and in silico studies. Bioorg Chem 2021; 108:104643. [PMID: 33486370 DOI: 10.1016/j.bioorg.2021.104643] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 12/13/2020] [Accepted: 01/05/2021] [Indexed: 12/13/2022]
Abstract
Acetylcholinesterase (AChE) inhibitor and telomerase reverse transcriptase (TERT) potentiator phytochemicals are highly targeted as anti-Alzheimerꞌs disease and as an anti-ageing process. A phytochemical study of Thunbergia erecta aerial parts resulted in the isolation of ten compounds (1-10). Their structures were identified based on spectral data and comparison with literature values. The activity of our pure isolates on AChE and TERT enzymes by documented in vitro assay methods were evaluated. The results indicated that apigenin (2), vanillic acid (4), and acacetin-7-O-β-D-glucoside (7) exhibited potent inhibition of AChE (IC50 37.33, 30.80 and 49.57 ng/mL, respectively), compared to the standard drug donepezil (IC50 31.25 ng/mL). In the TERT enzyme assay, compound 7 triggered a 1.66‑fold increase in telomerase activity at the concentration of 2.85 ng/ml. This is the first study that demonstrates that compound 7 isolated from T. erecta can lead to such telomerase activity relative to control cells. Virtual screening studies including docking, rapid overlay chemical structure (ROCS), and calculated structure-property relationships (SPR) were implemented in this work. Molecular docking studies supported the binding of compounds 2, 4, and 7 through hydrogen bonds (HBs) formation to essential amino acid residues namely ARG:24 A, SER:347 A, LYS:51 A, PHE:346 A, and GLY:345 A of acetylcholinesterase. ROCS and SPR analyses realized compound 2 as a possible treatment of Alzheimer's disease and as a lead compound for drug development process through applying semisynthetic modifications.
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Affiliation(s)
- Mohamed S Refaey
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Sadat City, Menoufiya 32958, Egypt
| | - Reda A Abdelhamid
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Hanan Elimam
- Department of Biochemistry, Faculty of Pharmacy, University of Sadat City, Sadat City 32958, Egypt; Department of Medicine, McGill University Health Centre, National Research Institute, McGill University, Montreal, Quebec, Canada
| | - Yaseen A M M Elshaier
- Department of Organic and Medicinal chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City, Menoufiya 32958, Egypt
| | - A A Ali
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Mohamed A A Orabi
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt.
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5
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Akıncıoğlu H, Gülçin İ. Potent Acetylcholinesterase Inhibitors: Potential Drugs for Alzheimer's Disease. Mini Rev Med Chem 2020; 20:703-715. [PMID: 31902355 DOI: 10.2174/1389557520666200103100521] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/30/2018] [Accepted: 10/19/2019] [Indexed: 02/05/2023]
Abstract
Alzheimer's disease (AD) is one of the cognitive or memory-related impairments occurring with advancing age. Since its exact mechanism is not known, the full therapy has still not been found. Acetylcholinesterase (AChE) has been reported to be a viable therapeutic target for the treatment of AD and other dementias. To this end, acetylcholinesterase inhibitors (AChEIs) are commonly used. AChE is a member of the hydrolase enzyme family. A hydrolase is an enzyme that catalyzes the hydrolysis of a chemical bond. AChE is useful for the development of novel and mechanism-based inhibitors. It has a role in the breakdown of acetylcholine (ACh) neurotransmitters, such as acetylcholinemediated neurotransmission. AChEIs are the most effective approaches to treat AD. AChE hydrolyzes ACh to acetate and choline, as an important neurotransmitter substance. Recently, Gülçin and his group explored new AChEIs. The most suggested mechanism for AD is the deficiency of ACh, which is an important neurotransmitter. In this regard, AChEIs are commonly used for the symptomatic treatment of AD. They act in different ways, such as by inhibiting AChE, protecting cells from free radical toxicity and β-amyloid-induced injury or inhibiting the release of cytokines from microglia and monocytes. This review focuses on the role of AChEIs in AD using commonly available drugs. Also, the aim of this review is to research and discuss the role of AChEIs in AD using commonly available drugs. Therefore, in our review, related topics like AD and AChEIs are highlighted. Also, the latest work related to AChEIs is compiled. In recent research studies, novel natural and synthetic AChEIs, used for AD, are quite noteworthy. These studies can be very promising in detecting potent drugs against AD.
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Affiliation(s)
- Hulya Akıncıoğlu
- Faculty of Science and Arts, Agri Ibrahim Cecen University, 04100-Agri, Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Ataturk University, 25240-Erzurum, Turkey
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6
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Pohanka M. Diagnoses of Pathological States Based on Acetylcholinesterase and Butyrylcholinesterase. Curr Med Chem 2020; 27:2994-3011. [PMID: 30706778 DOI: 10.2174/0929867326666190130161202] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 12/15/2022]
Abstract
Two cholinesterases exist: Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). While AChE plays a crucial role in neurotransmissions, BChE has no specific function apart from the detoxification of some drugs and secondary metabolites from plants. Thus, both AChE and BChE can serve as biochemical markers of various pathologies. Poisoning by nerve agents like sarin, soman, tabun, VX, novichok and overdosing by drugs used in some neurodegenerative disorders like Alzheimer´s disease and myasthenia gravis, as well as poisoning by organophosphorus pesticides are relevant to this issue. But it appears that changes in these enzymes take place in other processes including oxidative stress, inflammation, some types of cancer and genetically conditioned diseases. In this review, the cholinesterases are introduced, the mechanism of inhibitors action is explained and the relations between the cholinesterases and pathologies are explained.
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Affiliation(s)
- Miroslav Pohanka
- Faculty of Military Health Sciences, University of Defence, Trebesska 1575, 50001 Hradec Kralove, Czech Republic
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7
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Synthesis of furocoumarin-stilbene hybrids as potential multifunctional drugs against multiple biochemical targets associated with Alzheimer's disease. Bioorg Chem 2020; 101:103997. [PMID: 32554280 DOI: 10.1016/j.bioorg.2020.103997] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/26/2020] [Accepted: 06/02/2020] [Indexed: 12/14/2022]
Abstract
A series of furocoumarin-stilbene hybrids has been synthesized and evaluated in vitro for inhibitory effect against acetylcholinesterase (AChE), butyrylcholinestarase (BChE), β-secretase, cyclooxygenase-2 (COX-2), and lipoxygenase-5 (LOX-5) activities including free radical-scavenging properties. Among these hybrids, 8-(3,5-dimethoxyphenyl)-4-(3,5-dimethoxystyryl)furochromen-2-one 4h exhibited significant anticholinesterase activity and inhibitory effect against β-secretase, COX-2 and LOX-5 activities. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and an in vitro cell-based antioxidant activity assay involving lipopolysaccharide induced reactive oxygen species production revealed that 4h has capability of scavenging free radicals. Molecular docking into AChE, BChE, β-secretase, COX-2 and LOX-5 active sites has also been performed.
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Chrouda A, Zinoubi K, Soltane R, Alzahrani N, Osman G, Al-Ghamdi YO, Qari S, Al Mahri A, Algethami FK, Majdoub H, Jaffrezic Renault N. An Acetylcholinesterase Inhibition-Based Biosensor for Aflatoxin B 1 Detection Using Sodium Alginate as an Immobilization Matrix. Toxins (Basel) 2020; 12:E173. [PMID: 32168976 PMCID: PMC7150741 DOI: 10.3390/toxins12030173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/02/2020] [Accepted: 03/05/2020] [Indexed: 01/08/2023] Open
Abstract
In this study, we investigated a novel aflatoxin biosensor based on acetylcholinesterase (AChE) inhibition by aflatoxin B1 (AFB1) and developed electrochemical biosensors based on a sodium alginate biopolymer as a new matrix for acetylcholinesterase immobilization. Electrochemical impedance spectroscopy was performed as a convenient transduction method to evaluate the AChE activity through the oxidation of the metabolic product, thiocholine. Satisfactory analytical performances in terms of high sensitivity, good repeatability, and long-term storage stability were obtained with a linear dynamic range from 0.1 to 100 ng/mL and a low detection limit of 0.1 ng/mL, which is below the recommended level of AFB1 (2 µg/L). The suitability of the proposed method was evaluated using the samples of rice supplemented with AFB1 (0.5 ng/mL). The selectivity of the AChE-biosensor for aflatoxins relative to other sets of toxic substances (OTA, AFM 1) was also investigated.
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Affiliation(s)
- Amani Chrouda
- Department of Chemistry, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia; (A.C.); (Y.O.A.-G.)
- Laboratory of Interfaces and Advanced Materials, Faculty of Sciences, Monastir University, Monastir 5000, Tunisia; (K.Z.); (H.M.)
- Institute of Analytical Sciences, UMR CNRS-UCBL-ENS 5280, 5 Rue la Doua, 69100 Villeurbanne, CEDEX, France;
| | - Khouala Zinoubi
- Laboratory of Interfaces and Advanced Materials, Faculty of Sciences, Monastir University, Monastir 5000, Tunisia; (K.Z.); (H.M.)
| | - Raya Soltane
- Faculty of Sciences of Tunis, Tunis El Manar University, El Manar, Tunis 1068, Tunis;
- Department of Basic Sciences, Adham University College, Umm Al-Qura University, Adham 21971, Saudi Arabia;
| | - Noof Alzahrani
- Department of Basic Sciences, Adham University College, Umm Al-Qura University, Adham 21971, Saudi Arabia;
| | - Gamal Osman
- Department of Biology, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Research Laboratories Center, Faculty of Applied Science, Umm Al-Qura University, Mecca 21955, Saudi Arabia
- Agricultural Genetic Engineering Research Institute (AGERI), ARC, Giza 12915, Egypt
| | - Youssef O. Al-Ghamdi
- Department of Chemistry, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia; (A.C.); (Y.O.A.-G.)
| | - Sameer Qari
- Department of Biology, Aljumum University College, Umm Al-Qura University, Makkah Aljumum 21955, Saudi Arabia;
| | - Albandary Al Mahri
- Department of Biology, Faculty of Sciences and Arts, King Khalid University, Dhahran Aljanoub 61421, Saudi Arabia;
| | - Faisal K. Algethami
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia;
| | - Hatem Majdoub
- Laboratory of Interfaces and Advanced Materials, Faculty of Sciences, Monastir University, Monastir 5000, Tunisia; (K.Z.); (H.M.)
| | - Nicole Jaffrezic Renault
- Institute of Analytical Sciences, UMR CNRS-UCBL-ENS 5280, 5 Rue la Doua, 69100 Villeurbanne, CEDEX, France;
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Agbo EN, Gildenhuys S, Mphahlele MJ. Inhibitory Effects of Novel 7-Substituted 6-iodo-3- O-Flavonol Glycosides against Cholinesterases and β-secretase Activities, and Evaluation for Potential Antioxidant Properties. Molecules 2019; 24:molecules24193500. [PMID: 31561628 PMCID: PMC6804162 DOI: 10.3390/molecules24193500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 11/16/2022] Open
Abstract
A series of 7-halogeno- (X = F, Cl, Br) and 7-methoxy-substituted acetylated 6-iodo-3-O-flavonol glycosides were prepared, and evaluated for inhibitory effect in vitro against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) activities. 7-Bromo-2-(4-chlorophenyl)-6-iodo-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside (2k) and 7-bromo-6-iodo-2-(4-methoxyphenyl)-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside (2l) exhibited significant inhibitory effect against AChE activity when compared to the activity of the reference standard, donepezil. Compound 2k was found to be selective against AChE and to exhibit reduced inhibitory effect against BChE activity. 6-Iodo-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside (2p) was found to exhibit increased activity against BChE, more so than the activity of donepezil. The most active compounds were also evaluated for inhibitory effect against β-secretase activity and for potential radical scavenging activities. The experimental data were complemented with molecular docking (in silico) studies of the most active compounds into the active sites of these enzymes.
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Affiliation(s)
- Emmanuel N Agbo
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Samantha Gildenhuys
- Department of Life & Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Malose J Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
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Wang F, Han Y, Wang S, Ye Z, Wei L, Xiao L. Single-Particle LRET Aptasensor for the Sensitive Detection of Aflatoxin B 1 with Upconversion Nanoparticles. Anal Chem 2019; 91:11856-11863. [PMID: 31436408 DOI: 10.1021/acs.analchem.9b02599] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Contamination of foods and feeds by aflatoxins is a universal yet serious problem all over the world. Particularly, aflatoxin B1 (AFB1) is the most primary form and readily leads to terrible damages to human health. In this work, we construct a sensitive aptasensor based on single-particle detection (SPD) to analyze AFB1 in peanut samples with luminescence resonance energy transfer (LRET) between the aptamer-modified upconversion nanoparticles (UCNPs-aptamer) and gold nanoparticles (GNPs). The UCNP-aptamer plays as the luminescence donor, while GNP acts as the energy acceptor. In the absence of AFB1, GNPs would adsorb onto the surface of UCNPs-aptamer because of the association between aptamers and GNPs, leading to luminescence quenching. However, the luminescence of UCNPs-aptamer is recovered gradually in the presence of AFB1, because the aptamers possess stronger affinity toward AFB1 than GNPs. Through statistically counting the number of luminescent particles on the glass slide surface, the concentration of AFB1 in solution is accurately determined. The linear dynamic range for AFB1 detection is from 3.13 to 125.00 ng/mL. The limit-of-detection (LOD) is 0.17 ng/mL, which is much lower than the allowable concentration in foods. As a result, this method would provide promising application for the sensitive detection of AFB1 in foods and feeds, which might make a meaningful contribution to food safety and public health in the future.
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Affiliation(s)
- Fuyan Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , China
| | - Yameng Han
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Shumin Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin 300071 , China
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11
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Lyagin I, Efremenko E. Enzymes for Detoxification of Various Mycotoxins: Origins and Mechanisms of Catalytic Action. Molecules 2019; 24:E2362. [PMID: 31247992 PMCID: PMC6651818 DOI: 10.3390/molecules24132362] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/14/2019] [Accepted: 06/24/2019] [Indexed: 11/16/2022] Open
Abstract
Mycotoxins are highly dangerous natural compounds produced by various fungi. Enzymatic transformation seems to be the most promising method for detoxification of mycotoxins. This review summarizes current information on enzymes of different classes to convert various mycotoxins. An in-depth analysis of 11 key enzyme mechanisms towards dozens of major mycotoxins was realized. Additionally, molecular docking of mycotoxins to enzymes' active centers was carried out to clarify some of these catalytic mechanisms. Analyzing protein homologues from various organisms (plants, animals, fungi, and bacteria), the prevalence and availability of natural sources of active biocatalysts with a high practical potential is discussed. The importance of multifunctional enzyme combinations for detoxification of mycotoxins is posed.
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Affiliation(s)
- Ilya Lyagin
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
- Emanuel Institute of Biochemical Physics, RAS, Moscow 119334, Russia
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
- Emanuel Institute of Biochemical Physics, RAS, Moscow 119334, Russia.
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12
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Barmak A, Niknam K, Mohebbi G, Pournabi H. Antibacterial studies of hydroxyspiro[indoline-3,9-xanthene]trione against spiro[indoline3,9-xanthene]trione and their use as acetyl and butyrylcholinesterase inhibitors. Microb Pathog 2019; 130:95-99. [PMID: 30851360 DOI: 10.1016/j.micpath.2019.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 02/08/2019] [Accepted: 03/04/2019] [Indexed: 12/20/2022]
Abstract
Xanthene derivatives are well known for their effective biological activities. In search of effective antibacterial agents, the spiro[indoline3,9-xanthene]-trione (A) and hydroxy-spiro[indoline-3,9-xanthene]-trione (B), were synthesized and tested for in vitro antibacterial activity against Staphylococcus aureus and Escherichia coli. Furthermore, the synthesized compounds were tested in vitro and in silico for their anticholinesterase activities. The anticholinesterase activities for six substitutes of the hydroxy derivative (B1-B6) were also studied through the molecular docking. All concentrations of compounds presented a dose-dependent antibacterial activity. The docking results showed that all compounds are more constant than the galantamine. Amongst, compound B1 exhibited the minimum binding energy in both AChE and BChE enzymes. Results indicate the importance of xanthene derivatives as potential antibacterial and anticholinesterases agents.
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Affiliation(s)
- Alireza Barmak
- Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr, 75169, Iran
| | - Khodabakhsh Niknam
- Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr, 75169, Iran.
| | - Gholamhossein Mohebbi
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Hamid Pournabi
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
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13
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Mphahlele MJ, Agbo EN, Gildenhuys S. Synthesis and Evaluation of the 4-Substituted 2-Hydroxy-5-Iodochalcones and Their 7-Substituted 6-Iodoflavonol Derivatives for Inhibitory Effect on Cholinesterases and β-Secretase. Int J Mol Sci 2018; 19:ijms19124112. [PMID: 30567381 PMCID: PMC6321475 DOI: 10.3390/ijms19124112] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 12/15/2018] [Accepted: 12/16/2018] [Indexed: 11/24/2022] Open
Abstract
A series of 2-aryl-3-hydroxy-6-iodo-4H-chromen-4-ones substituted at the 7-position with a halogen atom (X = F, Cl and Br) or methoxy group and their corresponding 4-substituted 2-hydroxy-5-iodochalcone precursors were evaluated in vitro for inhibitory effect against acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and β-secretase (BACE1) activities. Although moderate inhibitory effect was observed for the chalcones against AChE, derivatives 2h, 2j and 2n exhibited significant inhibitory effect against BChE and BACE-1. The 2-aryl-7-fluoro-8-iodoflavonols 3b and 3c, on the other hand, exhibited increased activity and selectivity against AChE and reduced effect on BACE-1. The flavonols 3h, 3i, 3k, 3l and 3p exhibited moderate inhibitory effect against AChE, but significant inhibition against BChE. Compounds 2j and 3l exhibited non-competitive mode of inhibition against BACE-1. Molecular docking predicted strong interactions with the protein residues in the active site of BACE-1 implying these compounds bind with the substrate. Similarly docking studies predicted interaction of the most active compounds with both CAS and PAS of either AChE or BChE with mixed type of enzyme inhibition confirmed by kinetic studies.
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Affiliation(s)
- Malose J Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Emmanuel N Agbo
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Samantha Gildenhuys
- Department of Life & Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Private Bag X06, Florida 1710, South Africa.
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14
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de Almeida JSFD, Cavalcante SFA, Dolezal R, Kuca K, Musilek K, Jun D, França TCC. Molecular modeling studies on the interactions of aflatoxin B1 and its metabolites with the peripheral anionic site of human acetylcholinesterase. J Biomol Struct Dyn 2018; 37:2041-2048. [DOI: 10.1080/07391102.2018.1475259] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Joyce S. F. D. de Almeida
- Laboratory of Molecular Modeling Applied to Chemical and Biological Defense (LMDQB), Military Institute of Engineering, Praça General Tibúrcio, Rio de Janeiro, Brazil
| | - Samir F. A. Cavalcante
- Brazilian Army CBRN Defense Institute - IDQBRN, Avenida das Américas, Rio de Janeiro, Brazil
- Natural Products Research Institute - IPPN, Federal University of Rio de Janeiro - UFRJ, Bl. H, Ilha do Fundão, Rio de Janeiro, Brazil
| | - Rafael Dolezal
- Department of Chemistry, University of Hradec Králové, Rokitanskeho, Hradec Kralove, Czech Republic
- Faculty of Informatics and Management, Center for Basic and Applied Research, University of Hradec Králové, Rokitanskeho, 62, Hradec Králove, Czech Republic
| | - Kamil Kuca
- Department of Chemistry, University of Hradec Králové, Rokitanskeho, Hradec Kralove, Czech Republic
| | - Kamil Musilek
- Department of Chemistry, University of Hradec Králové, Rokitanskeho, Hradec Kralove, Czech Republic
| | - Daniel Jun
- Department of Toxicology, University of Defense, Trebesska, Hradec Kralové, Czech Republic
| | - Tanos C. C. França
- Laboratory of Molecular Modeling Applied to Chemical and Biological Defense (LMDQB), Military Institute of Engineering, Praça General Tibúrcio, Rio de Janeiro, Brazil
- Faculty of Informatics and Management, Center for Basic and Applied Research, University of Hradec Králové, Rokitanskeho, 62, Hradec Králove, Czech Republic
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15
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Murase R, Kondo S, Kitamura T, Goi Y, Hashimoto M, Teramoto Y. Cellulose Nanofibers as a Module for Paper-Based Microfluidic Analytical Devices: Labile Substance Storage, Processability, and Reaction Field Provision and Control. ACS APPLIED BIO MATERIALS 2018; 1:480-486. [DOI: 10.1021/acsabm.8b00206] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Wu ZQ, Liu JJ, Li JY, Xu D, Xia XH. Illustrating the Mass-Transport Effect on Enzyme Cascade Reaction Kinetics by Use of a Rotating Ring–Disk Electrode. Anal Chem 2017; 89:12924-12929. [DOI: 10.1021/acs.analchem.7b03780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zeng-Qiang Wu
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jun-Jun Liu
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jin-Yi Li
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Dan Xu
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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17
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Sharma A, Kumar A, Khan R. Electrochemical immunosensor based on poly (3,4-ethylenedioxythiophene) modified with gold nanoparticle to detect aflatoxin B1. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:802-809. [DOI: 10.1016/j.msec.2017.03.146] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/09/2017] [Accepted: 03/13/2017] [Indexed: 12/18/2022]
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18
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Mukherjee M, Bhatt P, H K M. Fluorescent competitive aptasensor for detection of aflatoxin B 1. J Mol Recognit 2017. [PMID: 28643851 DOI: 10.1002/jmr.2650] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Aflatoxin B1 (AFB1 ) is one of the most commonly found mycotoxins in food commodities, particularly cereals, oilseeds, spices and tree nuts. In the past decade, aptamers have come into limelight and emerged as a new biosensing element replacing antibodies in various detection formats. Herein we report a faster, more sensitive, high throughput method for the detection of AFB1 using AFB1 -specific aptamers. The assay format was based on a competitive reaction of the fluorescent tagged aptamer specific to AFB1 with the aflatoxin conjugate. Under optimal conditions, a linear range of detection (50 ng to 50 pg) was achieved with a limit of detection (LOD) of 10 pg/mL in the buffer system. Results of inter- and intra-assay revealed that the assay was repeatable with standard deviation in acceptable range. The assay was also validated in food samples such as dried red chilies, groundnut and whole pepper with recovery in the range of 92 to 102% at 10 ng/mL and 100 pg/mL levels. The aptasensor assay was also compared with standard analytical method of HPLC and was found to be more sensitive. This detection technique has the potential to be developed into a biosensor platform for AFB1 detection.
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Affiliation(s)
- Monali Mukherjee
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India.,Microbiology and Fermentation Technology Department, CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India
| | - Praveena Bhatt
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India.,Microbiology and Fermentation Technology Department, CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India
| | - Manonmani H K
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India.,Food Protectants and Infestation Control Department, CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India
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19
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Aflatoxins produced by Aspergillus parasiticus present in the diet of quails increase the activities of cholinesterase and adenosine deaminase. Microb Pathog 2017; 107:309-312. [DOI: 10.1016/j.micpath.2017.03.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 03/30/2017] [Accepted: 03/30/2017] [Indexed: 12/12/2022]
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20
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Linardaki ZI, Lamari FN, Margarity M. Saffron (Crocus sativus L.) Tea Intake Prevents Learning/Memory Defects and Neurobiochemical Alterations Induced by Aflatoxin B1 Exposure in Adult Mice. Neurochem Res 2017; 42:2743-2754. [DOI: 10.1007/s11064-017-2283-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 03/29/2017] [Accepted: 04/22/2017] [Indexed: 01/03/2023]
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21
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Colorimetric determination of the activity of acetylcholinesterase and its inhibitors by exploiting the iodide-catalyzed oxidation of 3,3′,5,5′-tetramethylbenzidine by hydrogen peroxide. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1874-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Catanante G, Rhouati A, Hayat A, Marty JL. An Overview of Recent Electrochemical Immunosensing Strategies for Mycotoxins Detection. ELECTROANAL 2016. [DOI: 10.1002/elan.201600181] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Gaelle Catanante
- BAE: Biocapteurs-Analyses-Environnement; Universite de Perpignan Via Domitia; 52 Avenue Paul Alduy Perpignan Cedex 66860 France
| | - Amina Rhouati
- BAE: Biocapteurs-Analyses-Environnement; Universite de Perpignan Via Domitia; 52 Avenue Paul Alduy Perpignan Cedex 66860 France
- Ecole Nationale Supérieure de Biotechnologie; Constantine-Algérie
| | - Akhtar Hayat
- Interdisciplinary Research centre in Biomedical Materials (IRCBM); COMSATS Institute of Information technology; Lahore Pakistan
| | - Jean Louis Marty
- BAE: Biocapteurs-Analyses-Environnement; Universite de Perpignan Via Domitia; 52 Avenue Paul Alduy Perpignan Cedex 66860 France
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23
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Bazin I, Tria SA, Hayat A, Marty JL. New biorecognition molecules in biosensors for the detection of toxins. Biosens Bioelectron 2016; 87:285-298. [PMID: 27568847 DOI: 10.1016/j.bios.2016.06.083] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/17/2016] [Accepted: 06/28/2016] [Indexed: 12/24/2022]
Abstract
Biological and synthetic recognition elements are at the heart of the majority of modern bioreceptor assays. Traditionally, enzymes and antibodies have been integrated in the biosensor designs as a popular choice for the detection of toxin molecules. But since 1970s, alternative biological and synthetic binders have been emerged as a promising alternative to conventional biorecognition elements in detection systems for laboratory and field-based applications. Recent research has witnessed immense interest in the use of recombinant enzymatic methodologies and nanozymes to circumvent the drawbacks associated with natural enzymes. In the area of antibody production, technologies based on the modification of in vivo synthesized materials and in vitro approaches with development of "display "systems have been introduced in the recent years. Subsequently, molecularly-imprinted polymers and Peptide nucleic acid (PNAs) were developed as an attractive receptor with applications in the area of sample preparation and detection systems. In this article, we discuss all alternatives to conventional biomolecules employed in the detection of various toxin molecules We review recent developments in modified enzymes, nanozymes, nanobodies, aptamers, peptides, protein scaffolds and DNazymes. With the advent of nanostructures and new interface materials, these recognition elements will be major players in future biosensor development.
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Affiliation(s)
- Ingrid Bazin
- École des Mines d'Alès, 6 Avenuede Clavières, 30100 Alès Cedex, France.
| | - Scherrine A Tria
- École des Mines d'Alès, 6 Avenuede Clavières, 30100 Alès Cedex, France
| | - Akhtar Hayat
- BAE (Biocapteurs-Analyses-Environnement), Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex 66860, France; Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology (CIIT), Lahore, Pakistan
| | - Jean-Louis Marty
- BAE (Biocapteurs-Analyses-Environnement), Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex 66860, France
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24
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Arduini F, Neagu D, Pagliarini V, Scognamiglio V, Leonardis M, Gatto E, Amine A, Palleschi G, Moscone D. Rapid and label-free detection of ochratoxin A and aflatoxin B1 using an optical portable instrument. Talanta 2016; 150:440-8. [DOI: 10.1016/j.talanta.2015.12.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/09/2015] [Accepted: 12/14/2015] [Indexed: 11/17/2022]
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25
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Zheng W, Teng J, Cheng L, Ye Y, Pan D, Wu J, Xue F, Liu G, Chen W. Hetero-enzyme-based two-round signal amplification strategy for trace detection of aflatoxin B1 using an electrochemical aptasensor. Biosens Bioelectron 2016; 80:574-581. [PMID: 26896792 DOI: 10.1016/j.bios.2016.01.091] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/29/2016] [Accepted: 01/31/2016] [Indexed: 01/04/2023]
Abstract
An electrochemical aptasensor for trace detection of aflatoxin B1 (AFB1) was developed by using an aptamer as the recognition unit while adopting the telomerase and EXO III based two-round signal amplification strategy as the signal enhancement units. The telomerase amplification was used to elongate the ssDNA probes on the surface of gold nanoparticles, by which the signal response range of the signal-off model electrochemical aptasensor could be correspondingly enlarged. Then, the EXO III amplification was used to hydrolyze the 3'-end of the dsDNA after the recognition of target AFB1, which caused the release of bounded AFB1 into the sensing system, where it participated in the next recognition-sensing cycle. With this two-round signal amplified electrochemical aptasensor, target AFB1 was successfully measured at trace concentrations with excellent detection limit of 0.6*10(-4)ppt and satisfied specificity due to the excellent affinity of the aptamer against AFB1. Based on this designed two-round signal amplification strategy, both the sensing range and detection limit were greatly improved. This proposed ultrasensitive electrochemical aptasensor method was also validated by comparison with the classic instrumental methods. Importantly, this hetero-enzyme based two-round signal amplified electrochemical aptasensor offers a great promising protocol for ultrasensitive detection of AFB1 and other mycotoxins by replacing the core recognition sequence of the aptamer.
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Affiliation(s)
- Wanli Zheng
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China
| | - Jun Teng
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China
| | - Lin Cheng
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China
| | - Yingwang Ye
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China
| | - Daodong Pan
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China
| | - Jingjing Wu
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China
| | - Feng Xue
- Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 200002, China.
| | - Guodong Liu
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58102, USA
| | - Wei Chen
- School of Biotechnology and Food Engineering, Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology, Hefei 23009, China.
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26
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Label-free immunosensor based on one-step electrodeposition of chitosan-gold nanoparticles biocompatible film on Au microelectrode for determination of aflatoxin B1 in maize. Biosens Bioelectron 2016; 80:222-229. [PMID: 26851579 DOI: 10.1016/j.bios.2016.01.063] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 01/26/2016] [Accepted: 01/27/2016] [Indexed: 11/24/2022]
Abstract
Gold nanoparticles (AuNPs) embedded in chitosan (CHI) film, well-dispersed and smaller in size (about 10 nm), were fabricated by one-step electrodeposion on Au microelectrode in solution containing chitosan and chloride trihydrate. The nano-structure CHI-AuNPs composite film offers abundant amine groups, good conductivity, excellent biocompatibility and stability for antibody immobilization. The combination of aflatoxin B1 (AFB1) with immobilized antibody introduces a barrier to electron transfer, resulting in current decreasement. The morphologies and characterizations of modified microelectrodes were investigated by scanning electron microscope (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Fourier transform infrared spectroscopy (FT-IR). The proposed non-enzyme and label-free immunosensor exhibited high sensitive amperometric response to AFB1 concentration in two linear ranges of 0.1 to 1 ng mL(-1) and 1 to 30 ng mL(-1), with the detection limit of 0.06 ng mL(-1) (S/N=3). The immunoassay was also applied for analysis of maize samples spiked with AFB1. Considering the sample extraction procedure, the linear range and limit of detection were assessed to be 1.6-16 ng mL(-1) and 0.19 ng mL(-1) respectively. The simple method showed good fabrication controllability and reproducibility for immunosensor design.
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27
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Stepurska K, Soldatkin O, Arkhypova V, Soldatkin A, Lagarde F, Jaffrezic-Renault N, Dzyadevych S. Development of novel enzyme potentiometric biosensor based on pH-sensitive field-effect transistors for aflatoxin B1 analysis in real samples. Talanta 2015; 144:1079-84. [DOI: 10.1016/j.talanta.2015.07.068] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/17/2015] [Accepted: 07/27/2015] [Indexed: 01/14/2023]
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28
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Yang L, Han J, Liu W, Li J, Jiang L. Conversion of Inhibition Biosensing to Substrate-Like Biosensing for Quinalphos Selective Detection. Anal Chem 2015; 87:5270-7. [DOI: 10.1021/acs.analchem.5b00376] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Limin Yang
- State Key
Laboratory of Heavy
Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong 266555, P. R. China
| | - Juan Han
- State Key
Laboratory of Heavy
Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong 266555, P. R. China
| | - Wei Liu
- State Key
Laboratory of Heavy
Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong 266555, P. R. China
| | - Jiqiang Li
- State Key
Laboratory of Heavy
Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong 266555, P. R. China
| | - Lei Jiang
- State Key
Laboratory of Heavy
Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong 266555, P. R. China
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29
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Pohanka M, Holas O. Evaluation of 2,6-dichlorophenolindophenol acetate as a substrate for acetylcholinesterase activity assay. J Enzyme Inhib Med Chem 2015; 30:796-9. [PMID: 25672529 DOI: 10.3109/14756366.2014.976564] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Ellman's method is a standard protocol for the determination of cholinesterases activity. Though the method is ready for laboratory purposes, it has some drawbacks as well. In the current article, 2,6-dichloroindophenol acetate is performed as a chromogenic substrate suitable for acetylcholinesterase (AChE) activity examination. Michaelis constant and maximal velocity for 2,6-dichloroindophenol acetate were determined (38.0 µM and 244 pkat) and compared to the values for acetythiocholine (K(m) 0.18 mM; V(max) 5.1 nkat). Docking for 2,6-dichloroindophenol acetate and human AChE was done as well. In conclusion, 2,6-dichloroindophenol acetate seems to be suitable chromogenic substrate for AChE and spectrophotometry and based on this it can be easily performed whenever AChE activity should be tested.
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Affiliation(s)
- Miroslav Pohanka
- a Faculty of Military Health Sciences , University of Defence , Hradec Kralove , Czech Republic
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30
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Scognamiglio V, Arduini F, Palleschi G, Rea G. Biosensing technology for sustainable food safety. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.07.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Liu L, Gao Y, Liu H, Du J, Xia N. Electrochemical-chemical-chemical redox cycling triggered by thiocholine and hydroquinone with ferrocenecarboxylic acid as the redox mediator. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Pohanka M. Inhibitors of acetylcholinesterase and butyrylcholinesterase meet immunity. Int J Mol Sci 2014; 15:9809-25. [PMID: 24893223 PMCID: PMC4100123 DOI: 10.3390/ijms15069809] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 03/06/2014] [Accepted: 03/11/2014] [Indexed: 12/22/2022] Open
Abstract
Acetylcholinesterase (AChE) inhibitors are widely used for the symptomatic treatment of Alzheimer’s disease and other dementias. More recent use is for myasthenia gravis. Many of these inhibitors interact with the second known cholinesterase, butyrylcholinesterase (BChE). Further, evidence shows that acetylcholine plays a role in suppression of cytokine release through a “cholinergic anti-inflammatory pathway” which raises questions about the role of these inhibitors in the immune system. This review covers research and discussion of the role of the inhibitors in modulating the immune response using as examples the commonly available drugs, donepezil, galantamine, huperzine, neostigmine and pyridostigmine. Major attention is given to the cholinergic anti-inflammatory pathway, a well-described link between the central nervous system and terminal effector cells in the immune system.
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Affiliation(s)
- Miroslav Pohanka
- Faculty of Military Health Sciences, University of Defence, Trebesska 1575, Hradec Kralove CZ-50001, Czech Republic.
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Pohanka M. Voltammetric assay of butyrylcholinesterase in plasma samples and its comparison to the standard spectrophotometric test. Talanta 2014; 119:412-6. [DOI: 10.1016/j.talanta.2013.11.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 11/09/2013] [Accepted: 11/15/2013] [Indexed: 01/10/2023]
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34
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Analytical aspects of enzyme reversible inhibition. Talanta 2014; 118:368-74. [DOI: 10.1016/j.talanta.2013.10.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/11/2013] [Accepted: 10/16/2013] [Indexed: 01/01/2023]
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35
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Hatefi-Mehrjardi A. Bienzyme self-assembled monolayer on gold electrode: An amperometric biosensor for carbaryl determination. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.09.090] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Amraoui NB, Amine A, Rejeb IB, Gargouri M. Determination of Pesticides Based on Their Inhibitory Action on Acetylcholinesterase Using a 2-Phase System. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.762581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Pohanka M. Spectrophotomeric Assay of Aflatoxin B1 Using Acetylcholinesterase Immobilized on Standard Microplates. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.757703] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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38
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Electrochemical affinity biosensors for detection of mycotoxins: A review. Biosens Bioelectron 2013; 49:146-58. [PMID: 23743326 DOI: 10.1016/j.bios.2013.05.008] [Citation(s) in RCA: 195] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/26/2013] [Accepted: 05/02/2013] [Indexed: 11/22/2022]
Abstract
This review discusses the current state of electrochemical biosensors in the determination of mycotoxins in foods. Mycotoxins are highly toxic secondary metabolites produced by molds. The acute toxicity of these results in serious human and animal health problems, although it has been only since early 1960s when the first studied aflatoxins were found to be carcinogenic. Mycotoxins affect a broad range of agricultural products, most important cereals and cereal-based foods. A majority of countries, mentioning especially the European Union, have established preventive programs to control contamination and strict laws of the permitted levels in foods. Official methods of analysis of mycotoxins normally requires sophisticated instrumentation, e.g. liquid chromatography with fluorescence or mass detectors, combined with extraction procedures for sample preparation. For about sixteen years, the use of simpler and faster analytical procedures based on affinity biosensors has emerged in scientific literature as a very promising alternative, particularly electrochemical (i.e., amperometric, impedance, potentiometric or conductimetric) affinity biosensors due to their simplicity and sensitivity. Typically, electrochemical biosensors for mycotoxins use specific antibodies or aptamers as affinity ligands, although recombinant antibodies, artificial receptors and molecular imprinted polymers show potential utility. This article deals with recent advances in electrochemical affinity biosensors for mycotoxins and covers complete literature from the first reports about sixteen years ago.
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Yozzo KL, McGee SP, Volz DC. Adverse outcome pathways during zebrafish embryogenesis: a case study with paraoxon. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 126:346-354. [PMID: 23046524 DOI: 10.1016/j.aquatox.2012.09.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 09/10/2012] [Accepted: 09/13/2012] [Indexed: 05/28/2023]
Abstract
Using paraoxon as a reference acetylcholinesterase (AChE) inhibitor, the objective of this study was to develop an adverse outcome pathway (AOP) that provided quantitative linkages across levels of biological organization during zebrafish embryogenesis. Within normal zebrafish embryos, we first demonstrated that ache transcripts and AChE activity increased in a stage-dependent manner following segmentation. We then showed that static exposure of embryos to paraoxon (31.2-500 nM) from 5 to 96 hpf resulted in significant stage- and concentration-dependent AChE inhibition, albeit these effects were fully reversible within 48 h following transfer to clean water. However, even in the presence of significant AChE inhibition, exposure to non-teratogenic paraoxon concentrations (≤250 nM) did not adversely impact secondary motoneuron development at 96 hpf. Therefore, we investigated the potential effects of paraoxon exposure on spontaneous tail contractions at 26 hpf - an early locomotor behavior that results from innervation of primary (not secondary) motoneuron axons to target axial muscles. Based on these studies, the frequency of spontaneous tail contractions at 26 hpf - a developmental stage with minimal AChE expression and activity - was significantly higher following exposure to paraoxon concentrations as low as 31.2 nM. Overall, our data suggest that (1) normal AChE activity is not required for secondary motoneuron development and (2) spontaneous tail contractions at 26 hpf are sensitive to paraoxon exposure, an effect that may be independent of AChE inhibition. Using a well-studied reference chemical, this study highlights the potential challenges in developing quantitative AOPs to support chemical screening and prioritization strategies.
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Affiliation(s)
- Krystle L Yozzo
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, 29208, USA
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40
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Arduini F, Amine A. Biosensors based on enzyme inhibition. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 140:299-326. [PMID: 23934362 DOI: 10.1007/10_2013_224] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present chapter describes the use of biosensors based on enzyme inhibition as analytical tools. The parameters that affect biosensor sensitivity, such as the amount of immobilized enzyme, incubation time, and immobilization type, were critically evaluated, highlighting how the knowledge of enzymatic kinetics can help researchers optimize the biosensor in an easy and fast manner. The applications of these biosensors demonstrating their wide application have been reported. The objective of this survey is to give a critical description of biosensors based on enzyme inhibition, of their assembly, and their application in the environmental, food, and pharmaceutical fields.
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Affiliation(s)
- Fabiana Arduini
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy,
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41
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Puiu M, Istrate O, Rotariu L, Bala C. Kinetic approach of aflatoxin B1–acetylcholinesterase interaction: A tool for developing surface plasmon resonance biosensors. Anal Biochem 2012; 421:587-94. [DOI: 10.1016/j.ab.2011.10.035] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 10/16/2011] [Accepted: 10/17/2011] [Indexed: 11/28/2022]
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Abstract
A novel method for aflatoxin B (AFB) determination is proposed. The AFB determination is based on acetylcholinesterase (AChE, from electric eel) inhibition, and the AChE residual activity is determined using the colorimetric method (Ellman's method). To select and optimize the analytical procedures, the investigation on type of AChE inhibition by AFB(1) was carried out. The AChE degree of inhibition by AFB(1) was independent of the incubation time and the enzyme concentrations, showing the reversibility of the inhibition. This reversibility of the inhibition permits a rapid analysis of AFB(1). In fact, only a 3-min analysis is required. For the development of AFB(1) assay, the pH, the reaction time, the temperature, and the substrate concentration were evaluated and optimized. The linear range of 10-60 ng/mL was assessed. To evaluate the selectivity of this method, the cross-reactivity with other aflatoxins, such as AFB(2) (aflatoxin B(2)), AFG(1) (aflatoxin G(1)), AFG(2) (aflatoxin G(2)), and AFM(1) (aflatoxin M(1)), was investigated. The suitability of the assay for AFB(1) quantification in barley was also evaluated. This study shows a new approach to detect aflatoxins based on enzyme inhibition with several advantages, such as the easiness of use, the rapidity, and the cost-effectiveness, demonstrating a possible use as screening method for this type of mycotoxins.
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Affiliation(s)
- Danila Moscone
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Roma, Italy.
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43
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Miao Y, He N, Zhu JJ. History and New Developments of Assays for Cholinesterase Activity and Inhibition. Chem Rev 2010; 110:5216-34. [DOI: 10.1021/cr900214c] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yuqing Miao
- Lab of Biomimetic Electrochemistry and Biosensors, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China; State Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, China; MOE Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Nongyue He
- Lab of Biomimetic Electrochemistry and Biosensors, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China; State Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, China; MOE Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jun-Jie Zhu
- Lab of Biomimetic Electrochemistry and Biosensors, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China; State Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, China; MOE Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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44
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Maragos C, Busman M. Rapid and advanced tools for mycotoxin analysis: a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2010; 27:688-700. [DOI: 10.1080/19440040903515934] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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45
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Biosensors based on cholinesterase inhibition for insecticides, nerve agents and aflatoxin B1 detection (review). Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0317-1] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Hossain SMZ, Luckham RE, McFadden MJ, Brennan JD. Reagentless Bidirectional Lateral Flow Bioactive Paper Sensors for Detection of Pesticides in Beverage and Food Samples. Anal Chem 2009; 81:9055-64. [PMID: 19788278 DOI: 10.1021/ac901714h] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. M. Zakir Hossain
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1
| | - Roger E. Luckham
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1
| | - Meghan J. McFadden
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1
| | - John D. Brennan
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1
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47
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Wang Z, Zhao J, Li F, Gao D, Xing B. Adsorption and inhibition of acetylcholinesterase by different nanoparticles. CHEMOSPHERE 2009; 77:67-73. [PMID: 19540550 DOI: 10.1016/j.chemosphere.2009.05.015] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Revised: 05/15/2009] [Accepted: 05/15/2009] [Indexed: 05/27/2023]
Abstract
Manufactured nanoparticles can be toxic via interactions with proteins and enzymes. Acetylcholinesterase (AChE) is a key enzyme present in the brain, blood and nervous system. Therefore, adsorption and inhibition of AChE by eight nanoparticles, SiO(2), TiO(2), Al(2)O(3), Al, Cu, Cu-C (carbon-coated copper), multi-walled carbon nanotubes (MWCNT) and single-walled carbon nanotubes (SWCNT), were examined. A modified Ellman assay was used to measure AChE activity because nanoparticles could adsorb the yellowish product, 5'-mercapto-2'-nitrobenzoic acid (5-MNBA) during the color development. Adsorption and inhibition rates by nanoparticles were estimated by decrease of AChE activities compared to controls. Carbon nanotubes had high affinity for AChE adsorption, the highest being SWCNT (94%). Nano SiO(2) and Al(2)O(3) showed the lowest adsorption. Inhibition by the tested nanoparticles was primarily caused by adsorption. However, Cu(2+) release in Cu and Cu-C nanoparticle suspensions caused 40% and 45% of AChE activity reduction, respectively. AChE inhibition by bulk Cu and activated carbon particles was also measured for comparison, showing that the inhibition by bulk particles was lower than their counterpart nanoparticles. For bulk Cu particles, AChE inhibition was primarily caused by dissolved ions, but mainly by adsorption for activated carbon. AChE inhibition by Cu, Cu-C, MWCNT and SWCNT had dose-response relationships, and their median inhibitory concentrations (IC(50)) were 4, 17, 156 and 96mgL(-1), respectively, showing that these nanoparticles may have neurotoxicity and AChE may have potential to be used as a biomarker for nanoparticles.
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48
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Arduini F, Amine A, Moscone D, Palleschi G. Reversible Enzyme Inhibition–Based Biosensors: Applications and Analytical Improvement Through Diagnostic Inhibition. ANAL LETT 2009. [DOI: 10.1080/00032710902901913] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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49
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Hossain SMZ, Luckham RE, Smith AM, Lebert JM, Davies LM, Pelton RH, Filipe CDM, Brennan JD. Development of a Bioactive Paper Sensor for Detection of Neurotoxins Using Piezoelectric Inkjet Printing of Sol−Gel-Derived Bioinks. Anal Chem 2009; 81:5474-83. [PMID: 19492815 DOI: 10.1021/ac900660p] [Citation(s) in RCA: 226] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. M. Zakir Hossain
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - Roger E. Luckham
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - Anne Marie Smith
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - Julie M. Lebert
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - Lauren M. Davies
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - Robert H. Pelton
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - Carlos D. M. Filipe
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
| | - John D. Brennan
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada, and Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7
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50
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Maragos C. Biosensors for mycotoxin analysis: recent developments and future prospects. WORLD MYCOTOXIN J 2009. [DOI: 10.3920/wmj2008.1117] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The toxicity and prevalence of mycotoxins in commodities and foods has necessitated the development of rapid methods in order to ensure the protection of human food and animal feed supplies. Testing for mycotoxins can be accomplished by many techniques that range from determinative tests in which the presence of the toxin is confirmed, to presumptive tests in which the presence of the toxin is inferred from the presence of markers. This review focuses on tests that fall into a third category, namely indirect assays, where the presence of the toxin is established by it's interaction with an intermediary. Such intermediaries include biological materials that bind mycotoxins, such as antibodies, as well as synthetic materials such as polymers and man-made peptides. The diversity of assays within this category is extraordinary and includes assays based upon traditional microwell formats, microbeads, membranes, electrodes, wave-guides, and solution-phase assays. The microbead format includes platforms as diverse as flow injection immunoassays, tandem column immunoassays, and immunoaffinity columns. The membrane-based formats include flow-through as well as lateral-flow assays. The electrode-based formats incorporate miniaturised immunoassays with electrochemical endpoints. The wave-guide-based devices include formats such as surface plasmon resonance, and fluorescence array biosensors, and the solution phase formats include homogeneous assays such as fluorescence polarisation immunoassay. The breadth of technologies brought to bear upon solving the need for rapid, accurate, detection of mycotoxins is impressive and includes technologies currently available commercially and those which appear poised to enter the marketplace.
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Affiliation(s)
- C. Maragos
- Mycotoxin Research Unit, National Center for Agricultural Utilization Research, ARS, USDA, 1815 N. University St., Peoria, IL 61604, USA
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