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Caglayan MO. Mercuric ion detection by plasmon-enhanced spectrophotometric ellipsometer using specific oligonucleotide probes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118682. [PMID: 32650242 DOI: 10.1016/j.saa.2020.118682] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Pollution due to heavy metal ions, including mercury, has become a major issue because of their toxicities. It is required to monitor mercury levels in aqueous media using fast and selective methods with high accuracy. Ellipsometry is a promising technique for instance when it's combined with the plasmon resonance phenomena. We reported a biosensor system available for qualitative/quantitative determination of mercuric ions in aqueous media where both the spectrophotometric ellipsometry and oligonucleotide recognition elements were used. A single step assay using both a linear (ProbeL) and a hair-pin (ProbeH) type oligonucleotide probe as a recognition element, in addition to a sandwich-type (ProbeLS) assay were developed and compared. The detection limits were 0.23 nM, 0.03 nM and 0.15 pM for ProbeL, ProbeH and ProbeLS, respectively. The detection range was between 0.05 nM and 100 nM Hg2+ for all assays proposed herein.
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Affiliation(s)
- Mustafa Oguzhan Caglayan
- Bilecik Seyh Edebali University, Faculty of Engineering, Bioengineering Department, Bilecik, Turkiye.
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2
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An ellipsometric biosensor using aptamer for the detection of mercuric ions. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01282-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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3
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Fernando A, Mako TL, Levenson AM, Cesana PT, Mendieta AM, Racicot JM, DeBoef B, Levine M. A polycationic pillar[5]arene for the binding and removal of organic toxicants from aqueous media. Supramol Chem 2019. [DOI: 10.1080/10610278.2019.1632457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ashvin Fernando
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
| | - Teresa L. Mako
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
| | | | - Paul T. Cesana
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
| | | | - Joan M. Racicot
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
| | - Brenton DeBoef
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
| | - Mindy Levine
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
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Dragone R, Grasso G, Muccini M, Toffanin S. Portable Bio/Chemosensoristic Devices: Innovative Systems for Environmental Health and Food Safety Diagnostics. Front Public Health 2017; 5:80. [PMID: 28529937 PMCID: PMC5418341 DOI: 10.3389/fpubh.2017.00080] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 03/29/2017] [Indexed: 11/16/2022] Open
Abstract
This mini-review covers the newly developed biosensoristic and chemosensoristic devices described in recent literature for detection of contaminants in both environmental and food real matrices. Current needs in environmental and food surveillance of contaminants require new simplified, sensitive systems, which are portable and allow for rapid and on-site monitoring and diagnostics. Here, we focus on optical and electrochemical bio/chemosensoristic devices as promising tools with interesting analytical features that can be potentially exploited for innovative on-site and real-time applications for diagnostics and monitoring of environmental and food matrices (e.g., agricultural waters and milk). In near future, suitably developed and implemented bio/chemosensoristic devices will be a new and modern technological solution for the identification of new quality and safety marker indexes as well as for a more proper and complete characterization of abovementioned environmental and food matrices. Integrated bio/chemosensoristic devices can also allow an “holistic approach” that may prove to be more suitable for diagnostics of environmental and food real matrices, where the copresence of more bioactive substances is frequent. Therefore, this approach can be focused on the determination of net effect (mixture effect) of bioactive substances present in real matrices.
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Affiliation(s)
- Roberto Dragone
- Institute of Nanostructured Materials (ISMN), Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
| | - Gerardo Grasso
- Institute of Nanostructured Materials (ISMN), Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
| | - Michele Muccini
- Institute of Nanostructured Materials (ISMN), Consiglio Nazionale delle Ricerche (CNR), Bologna, Italy
| | - Stefano Toffanin
- Institute of Nanostructured Materials (ISMN), Consiglio Nazionale delle Ricerche (CNR), Bologna, Italy
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Frazzoli C, Gherardi P, Saxena N, Belluzzi G, Mantovani A. The Hotspot for (Global) One Health in Primary Food Production: Aflatoxin M1 in Dairy Products. Front Public Health 2017; 4:294. [PMID: 28210616 PMCID: PMC5288371 DOI: 10.3389/fpubh.2016.00294] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 12/21/2016] [Indexed: 11/13/2022] Open
Abstract
One Health involves the multifaceted environment-animal-human web: nevertheless, the role of toxicological issues has yet to be fully explored in this context. Aflatoxin B1 (AFB1) contamination of feeds is a risk for the health of several farm animals, including fishes; milk is the only food of animal origin where a significant feed-food carry over may occur. The main AFB1-related compound present in milk is the hydroxy-metabolite aflatoxin M1 (AFM1). Besides contamination of raw milk, AFM1 is of concern for the whole dairy chain; AFM1 may also contaminate the milk of several other ruminants used for milk/dairy production. In a One Health perspective, milk represents a sentinel matrix for AFB1 vulnerability of the agro-food system, that is crucial in a phase when food/nutritional security becomes a global issue and climatic changes may affect agricultural productions. In the global setting, food chain exposure to long-term toxicants, such as AFM1, is a growing concern for economically developing countries, whereas global trade and climatic change makes AFM1 an emerging hot issue in economically developed countries as well. We critically review the state of the art on AFM1 risk assessment and risk management using two scenarios as case studies: a European Union country where the health system aims at ensuring a high-level protection of food chain (Italy) and the world's largest (and economically developing) producer of dairy products by volume (India). The case studies are used to provide building blocks for a global One Health framework.
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Affiliation(s)
| | | | - Navneet Saxena
- Central Institute for Research on Buffalo , Hisar , India
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Dragone R, Ermilov L, Grasso G, Maggioni S, Mantovani A, Frazzoli C. Antioxidant power as biochemical endpoint in bread for screening and early managing quality and toxicant-related safety anomalies in food production. Food Chem Toxicol 2016; 94:31-8. [PMID: 27174639 DOI: 10.1016/j.fct.2016.04.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 04/27/2016] [Accepted: 04/28/2016] [Indexed: 10/21/2022]
Abstract
Flaxseeds are both a food ingredient and a natural source of antioxidants (e.g. lignans, PUFAs) and pro-oxidant contaminants (e.g. cadmium): the variable mixture of anti- and pro-oxidant substances may impact on the redox homeostasis of flaxseed-enriched foods. The antioxidant power is studied here as biochemical activity of flaxseeds in white wheat bread and as endpoint for possible screening of anomalous variations of bioactive mixtures (antioxidants vs. prooxidants) in food matrices. A bioprobe assay based on the superoxide dismutase (SOD) enzyme (6 channels of the multiprobe bioelectronic platform BEST) was performed on white wheat bread with and without flaxseeds. Nine BEST channels were simultaneously used for validation and monitoring of measuring conditions (temperature, pH, conductivity). Findings were compared with quantitative analysis of antioxidants and pro-oxidant contaminants. Organic and aqueous extracts of both bread types were examined in parallel. The SOD-probe detected the difference in antioxidant power given by 10% flaxseed, thus supporting the use of antioxidant power detected by bioenzymatic screening as sensitive biochemical endpoint. Mixtures of bioactive molecules in foods generate biochemical activities that can be monitored as time-effective indicators of invariability, which is pivotal in the daily control of anomalies in food production and therefore in the protection of consumers' health.
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Affiliation(s)
- Roberto Dragone
- Institute of Nanostructured Materials, Consiglio Nazionale delle Ricerche, P.le Aldo Moro 5, 00185, Rome, Italy
| | - Laura Ermilov
- Institute of Nanostructured Materials, Consiglio Nazionale delle Ricerche, P.le Aldo Moro 5, 00185, Rome, Italy
| | - Gerardo Grasso
- Institute of Nanostructured Materials, Consiglio Nazionale delle Ricerche, P.le Aldo Moro 5, 00185, Rome, Italy
| | - Silvia Maggioni
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Sciences, IRCCS- Istituto di Ricerche Farmacologiche "Mario Negri", V. La Masa 19, Milan, Italy
| | - Alberto Mantovani
- Food and Veterinary Toxicology Unit, Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità, V.le Regina Elena 299, 00161, Rome, Italy
| | - Chiara Frazzoli
- External Relations Office, Istituto Superiore di Sanità, V. Giano della Bella 34, 00162, Rome, Italy.
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Diuron in water: functional toxicity and intracellular detoxification patterns of active concentrations assayed in tandem by a yeast-based probe. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:3731-40. [PMID: 25837349 PMCID: PMC4410212 DOI: 10.3390/ijerph120403731] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 03/23/2015] [Indexed: 11/17/2022]
Abstract
A study on the acute and chronic effects of the herbicide diuron was carried out. The test, basing on a yeast cell probe, investigated the interference with cellular catabolism and possible self-detoxification capacity of Saccharomyces cerevisiae. Aerobic respiration was taken as the toxicological end-point. Percentage interference (%r) with cellular respiration was measured in water by increased dissolved O2 concentration (ppm) after exposure to different doses. Interference was calculated through the comparison of respiratory activity of exposed and non-exposed cells. Short-term and long-term (6 and 24 h respectively) exposures were also considered. The test for short-term exposure gave positive %r values except that for 10-6 M (11.11%, 11.76%, 13.33% and 0% for 10-10 M, 10-8 M, 10-7 M and 10-6 M respectively). In the case of long-term exposure the test showed positive %r values, but less effect than short-term exposure until 10-8 M and much higher at 10-6 M (7.41%, 8.82%, 11.76% and 6.06% for 10-10 M, 10-8 M, 10-7 M and 10-6 M respectively). The findings of aerobic respiration as toxicological end-point were in agreement with known mechanisms of toxicity and intracellular detoxification for both the doses and exposure times employed.
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Sammartino MP, Castrucci M, Ruiu D, Visco G, Campanella L. Photostability and toxicity of finasteride, diclofenac and naproxen under simulating sunlight exposure: evaluation of the toxicity trend and of the packaging photoprotection. Chem Cent J 2013; 7:181. [PMID: 24325844 PMCID: PMC3881013 DOI: 10.1186/1752-153x-7-181] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 11/17/2013] [Indexed: 12/02/2022] Open
Abstract
Background Drugs photostability plays two different opposite roles; a real advantage arises considering the longer expiration time of the drugs while the consequent persistence in the environment involves an obvious negative effect bound to their harmfulness. On this basis we tested the photostability and toxicity of three pharmaceutical active principles: Finasteride, Diclofenac and Naproxen. The pure active principles, as well as commercial drugs containing them, were considered; for the last, the protective effect of the packaging was also evaluated. Samples were irradiated according to the ICH Guidelines for photostability testing (The International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use); a simulating sunlight source (a mercury-vapor lamp coupled to a tungsten filament one) was used to cover the wavelength range 300–2000 nm; Temperature, Relative Humidity, Irradiance and Illuminance were maintained constant during the photodegradation. The concentrations of the pharmaceutical active principles during the photodegradation were monitored by HPLC with UV/Vis detector. Toxicity tests were performed by means of an amperometric biosensor based on suspended yeast cells. Since the products obtained by the photodegradation process can result as toxic or more toxic than the original molecules, tests were performed first and after the photodegadation. Results After 90 hours of exposure the concentration resulted lowered by 42.9%, 88.4% and 91% for Finasteride, Naproxen and Diclofenac respectively. Toxicity of the pure active principles follows the same order of the photostability. After photodegradation a contribute of the reaction products was evidenced. Conclusions The simple and cheap analytical procedure here proposed, allowed to obtain not only data on photostability and toxicity of the pure active principles but, even if roughly, also useful information on the reactions kinetic and toxicity of the photodegradation products.
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Affiliation(s)
- Maria Pia Sammartino
- Chemistry Department, "La Sapienza" University, P,le Aldo Moro 5, Rome 00185, Italy.
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Abstract
Biosensors - classification, characterization and new trendsBiosensors represent promising analytical tools applicable in areas such as clinical diagnosis, food industry, environment monitoring and in other fields, where rapid and reliable analyses are needed. Some biosensors were successfully implemented in the commercial sphere, but majority needs to be improved in order to overcome some imperfections. This review covers the basic types, principles, constructions and use of biosensors as well as new trends used for their fabrication.
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Yuan M, Zhu Y, Lou X, Chen C, Wei G, Lan M, Zhao J. Sensitive label-free oligonucleotide-based microfluidic detection of mercury (II) ion by using exonuclease I. Biosens Bioelectron 2012; 31:330-6. [DOI: 10.1016/j.bios.2011.10.043] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 10/10/2011] [Accepted: 10/19/2011] [Indexed: 02/06/2023]
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