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Zhou Y, Chen X, Zhan S, Wang Q, Deng F, Wu Q, Peng J. Stabilized and Controlled Release of Radicals within Copper Formate-Based Nanozymes for Biosensing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43431-43440. [PMID: 37674322 PMCID: PMC10520911 DOI: 10.1021/acsami.3c08326] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
Fenton-like radical processes are widely utilized to explain catalytic mechanisms of peroxidase-like nanozymes, which exhibit remarkable catalytic activity, cost-effectiveness, and stability. However, there is still a need for a comprehensive understanding of the formation, stabilization, and transformation of such radicals. Herein, a copper formate-based nanozyme (Cuf-TMB) was fabricated via a pre-catalytic strategy under ambient conditions. The as-prepared nanozyme shows comparable catalytic activity (Km, 1.02 × 10-5 mM-1; Kcat, 3.09 × 10-2 s-1) and kinetics to those of natural peroxidase toward H2O2 decomposition. This is attributed to the feasible oxidation by *OH species via the *O intermediate, as indicated by density functional theory calculations. The key ·OH radicals were detected to be stable for over 52 days and can be released in a controlled manner during the catalytic process via in situ electron spin-resonance spectroscopy measurements. Based on the understanding, an ultrasensitive biosensing platform was constructed for the sensitive monitoring of biochemical indicators in clinic settings.
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Affiliation(s)
- Yue Zhou
- State
Key Laboratory of Advanced Technology for Materials Synthesis and
Processing, and School of Chemistry, Chemical Engineering and Life
Science, Wuhan University of Technology, Wuhan 430070, China
| | - Xiaohua Chen
- Department
of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 51015, China
| | - Shaoqi Zhan
- Department
of Chemistry—BMC, Uppsala University, BMC Box 576, Uppsala S-751
23, Sweden
| | - Qiang Wang
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science
and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Feng Deng
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science
and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Qingzhi Wu
- State
Key Laboratory of Advanced Technology for Materials Synthesis and
Processing, and School of Chemistry, Chemical Engineering and Life
Science, Wuhan University of Technology, Wuhan 430070, China
| | - Jian Peng
- State
Key Laboratory of Advanced Technology for Materials Synthesis and
Processing, and School of Chemistry, Chemical Engineering and Life
Science, Wuhan University of Technology, Wuhan 430070, China
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2
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Hao Y, Zhang F, Ma Y, Luo Y, Zhang Y, Yang N, Liu M, Liu H, Li J. Potential biomarkers for the early detection of bone metastases. Front Oncol 2023; 13:1188357. [PMID: 37404755 PMCID: PMC10315674 DOI: 10.3389/fonc.2023.1188357] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/01/2023] [Indexed: 07/06/2023] Open
Abstract
The clinical manifestations of bone metastases are diversified while many sites remain asymptomatic at early stage. As the early diagnosis method is not perfect and the early symptoms of tumor bone metastasis are not typical, bone metastasis is not easy to be detected. Therefore, the search for bone metastasis-related markers is effective for timely detection of tumor bone metastases and the development of drugs to inhibit bone metastases. As a result, bone metastases can only be diagnosed when symptoms are found, increasing the risk of developing skeletal-related event (SREs), which significantly impairs the patient's quality of life. Therefore, the early diagnosis of bone metastases is of great importance for the treatment and prognosis of cancer patients. Changes of bone metabolism indexes appear earlier in bone metastases, but the traditional biochemical indexes of bone metabolism lack of specificity and could be interfered by many factors, which limits their application in the study of bone metastases. Some new biomarkers of bone metastases have good diagnostic value, such as proteins, ncRNAs, circulating tumor cells (CTCs). Therefore, this study mainly reviewed the initial diagnostic biomarkers of bone metastases which were expected to provide references for the early detection of bone metastases.
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Affiliation(s)
- Yang Hao
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
- Henan University of Chinese Medicine, Zhengzhou, China
| | - Feifan Zhang
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
- Hunan University of Chinese Medicine, Changsha, China
| | - Yan Ma
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
| | - Yage Luo
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
| | - Yongyong Zhang
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
| | - Ning Yang
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
| | - Man Liu
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
| | - Hongjian Liu
- Department of Orthopaedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jitian Li
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou, China
- Henan University of Chinese Medicine, Zhengzhou, China
- Hunan University of Chinese Medicine, Changsha, China
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Preliminary Results on the Comparative Evaluation of Alkaline Phosphatase Commercial Tests Efficiency in Non-Cow Milk Pasteurization. BIOTECH 2022; 11:biotech11030039. [PMID: 36134913 PMCID: PMC9496796 DOI: 10.3390/biotech11030039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
The demand for non-cow milk and the products derived from it, is constantly increasing; thus, correct and effective pasteurization becomes necessary. Typical practices for evaluating milk pasteurization are mainly based on the thermal inactivation of an endogenous enzyme, alkaline phosphatase (ALP). The ALP tests, originally designed and applied to pasteurized cow milk, are often used to control pasteurization in non-cow milk, without sufficient data on their suitability; EFSA calls on the scientific world for collecting more information on the subject. In this study, the pertinent details of the ALP assay for non-cow milk products are summarized, and a comparison is performed regarding the evaluation of the adequacy of commercially available tests for the determination of ALP activity in non-cow milk. At the same time, raw and pasteurized non-cow milk was analyzed microbiologically using standard ISO methods and MALDI-TOF MS in order to confirm the thermal effect on common microorganisms. In these preliminary results, various ALP tests do not appear to be fully reliable as indicators for the pasteurization of some types of non-cow milk such as camel and donkey milk or even goat and sheep milk, using the EFSA proposed limits. ALP commercial kits may not be suitable as pasteurization indicators for various types on non-cow milk, and alternatives should be investigated.
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Clawin‐Rädecker I, De Block J, Egger L, Willis C, Da Silva Felicio MT, Messens W. The use of alkaline phosphatase and possible alternative testing to verify pasteurisation of raw milk, colostrum, dairy and colostrum-based products. EFSA J 2021; 19:e06576. [PMID: 33968255 PMCID: PMC8085980 DOI: 10.2903/j.efsa.2021.6576] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Pasteurisation of raw milk, colostrum, dairy or colostrum-based products must be achieved using at least 72°C for 15 s, at least 63°C for 30 min or any equivalent combination, such that the alkaline phosphatase (ALP) test immediately after such treatment gives a negative result. For cows' milk, a negative result is when the measured activity is ≤ 350 milliunits of enzyme activity per litre (mU/L) using the ISO standard 11816-1. The use and limitations of an ALP test and possible alternative methods for verifying pasteurisation of those products from other animal species (in particular sheep and goats) were evaluated. The current limitations of ALP testing of bovine products also apply. ALP activity in raw ovine milk appears to be about three times higher and in caprine milk about five times lower than in bovine milk and is highly variable between breeds. It is influenced by season, lactation stage and fat content. Assuming a similar pathogen inactivation rate to cows' milk and based on the available data, there is 95-99% probability (extremely likely) that pasteurised goat milk and pasteurised sheep milk would have an ALP activity below a limit of 300 and 500 mU/L, respectively. The main alternative methods currently used are temperature monitoring using data loggers (which cannot detect other process failures such as cracked or leaking plates) and the enumeration of Enterobacteriaceae (which is not suitable for pasteurisation verification but is relevant for hygiene monitoring). The inactivation of certain enzymes other than ALP may be more suitable for the verification of pasteurisation but requires further study. Secondary products of heat treatment are not suitable as pasteurisation markers due to the high temperatures needed for their production. More research is needed to facilitate a definitive conclusion on the applicability of changes in native whey proteins as pasteurisation markers.
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R. MK, Jadhav VJ, Badgujar PC. Development of a HPLC Fluorescence Method for Determining Efficacy of Milk Pasteurization. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01865-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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6
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Mix-and-read method for assessment of milk pasteurization using a smartphone or a common digital camera. Anal Bioanal Chem 2020; 412:5663-5669. [PMID: 32613568 DOI: 10.1007/s00216-020-02786-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/14/2020] [Accepted: 06/22/2020] [Indexed: 10/23/2022]
Abstract
Alkaline phosphatase (ALP) is the most widely used marker of the adequacy of milk pasteurization since it is inactivated at temperatures slightly higher than those required for elimination of pathogens. The cutoff level is 350 mU/L. The approved colorimetric, fluorometric, and chemiluminometric methods require specialized readers with photomultipliers as detectors, and the samples are usually analyzed one-by-one. We developed a low-cost mix-and-read method that exploited a smartphone or a common digital camera as detectors for the chemiluminometric determination of ALP in milk. As samples, we used pasteurized cow and sheep milk spiked with ALP, as well as mixtures of pasteurized and raw (non-pasteurized) milk. Chemiluminescence images acquired by the smartphone or the digital camera were analyzed by the ImageJ software. The limits of detection (LODs), for images captured by the smartphone, were 4.4 mU/L and 11.1 mU/L for cow milk and sheep milk, respectively, while with the digital camera, the respective LODs were 6.2 mU/L and 6.7 mU/L, respectively. The coefficients of variation (CVs) at the cutoff level of 350 mU/L were 8% and 8.5% for the cow and sheep milk, respectively. For images by the digital camera, the CVs were 5.8% and 5% for cow and sheep milk, respectively. The performance of the method is similar to methods that use a microtiter plate and a luminometer for chemiluminescence measurements. Sample pretreatment is not necessary. The microtiter well format combined with detection by a smartphone enables the analysis of multiple samples simultaneously. It is anticipated that the method will prove useful for the rapid assessment of milk pasteurization efficiency in dairy industries, especially in remote areas where expensive instruments are not available. Graphical abstract.
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Zangheri M, Mirasoli M, Guardigli M, Di Nardo F, Anfossi L, Baggiani C, Simoni P, Benassai M, Roda A. Chemiluminescence-based biosensor for monitoring astronauts' health status during space missions: Results from the International Space Station. Biosens Bioelectron 2018; 129:260-268. [PMID: 30292340 DOI: 10.1016/j.bios.2018.09.059] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/11/2018] [Accepted: 09/15/2018] [Indexed: 12/21/2022]
Abstract
During space missions, real-time monitoring of astronauts' health status is of crucial importance and therefore there is a strong demand for simple analytical devices that astronauts can use to perform clinical chemistry analyses directly onboard. As part of the "IN SITU Bioanalysis" project, we designed a biosensor for analysing salivary levels of cortisol in astronauts, a marker of chronic stress. The biosensor is based on the Lateral Flow Immunoassay (LFIA) approach coupled with chemiluminescence (CL) detection and comprises a 3D-printed plastic cartridge containing a sealed fluidic element with the LFIA strip, in which the flow of sample and reagents is activated by pressing buttons on the cartridge and sustained by exploiting capillary forces. For measurement, the photon emission is imaged employing a CL reader based on an ultrasensitive cooled charge-coupled device (CCD) camera. The payload was designed to operate in microgravity and to withstand mechanical stress, such as take-off vibrations, and onboard depressurization events, while the microfluidics was developed considering alterations of physical phenomena occurring in microgravity, such as bubble formation, surface wettability and liquid evaporation. The biosensor, which was successfully used by the Italian astronaut Paolo Nespoli during the VITA mission (July-December 2017), demonstrated the feasibility of performing sensitive LFIA analysis of salivary cortisol down to 0.4 ng/mL directly onboard the International Space Station. It could be easily adapted for the analysis of other clinical biomarkers, thus enabling the early diagnosis of diseases and the timely activation of appropriate countermeasures.
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Affiliation(s)
- Martina Zangheri
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Mara Mirasoli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Massimo Guardigli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Fabio Di Nardo
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7, 10125 Turin, Italy
| | - Laura Anfossi
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7, 10125 Turin, Italy
| | - Claudio Baggiani
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7, 10125 Turin, Italy
| | - Patrizia Simoni
- Department of Medical and Surgical Sciences, Alma Mater Studiorum - University of Bologna, Via Massarenti 9, 40138 Bologna, Italy
| | | | - Aldo Roda
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
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8
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Yu L, Shi Z, Fang C, Zhang Y, Liu Y, Li C. Disposable lateral flow-through strip for smartphone-camera to quantitatively detect alkaline phosphatase activity in milk. Biosens Bioelectron 2015; 69:307-15. [DOI: 10.1016/j.bios.2015.02.035] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/10/2015] [Accepted: 02/23/2015] [Indexed: 11/16/2022]
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9
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Zangheri M, Cevenini L, Anfossi L, Baggiani C, Simoni P, Di Nardo F, Roda A. A simple and compact smartphone accessory for quantitative chemiluminescence-based lateral flow immunoassay for salivary cortisol detection. Biosens Bioelectron 2014; 64:63-8. [PMID: 25194797 DOI: 10.1016/j.bios.2014.08.048] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 08/17/2014] [Accepted: 08/21/2014] [Indexed: 10/24/2022]
Abstract
We have developed a simple and accurate biosensor based on a chemiluminescent (CL)-lateral flow immunoassay (LFIA) method integrated in a smartphone to quantitatively detect salivary cortisol. The biosensor is based on a direct competitive immunoassay using peroxidase-cortisol conjugate, detected by adding the chemiluminescent substrate luminol/enhancer/hydrogen peroxide. The smartphone camera is used as light detector, for image acquisition and data handling via a specific application. We 3D-printed simple accessories to adapt the smartphone. The system comprises a cartridge, which houses the LFIA strip, and a smartphone adaptor with a plano-convex lens and a cartridge-insertion slot. This provides a mini-darkbox and aligned optical interface between the camera and the LFIA membrane for acquiring CL signals. The method is simple and fast, with a detection limit of 0.3 ng/mL. It provides quantitative analysis in the range of 0.3-60 ng/mL, which is adequate for detecting salivary cortisol in the clinically accepted range. It could thus find application in the growing area of home-self-diagnostic device technology for clinical biomarker monitoring, overcoming the current difficulties in achieving sensitive and quantitative information with conventional systems taking the advantage of smartphone connectivity and the enhanced performance of the included camera.
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Affiliation(s)
- Martina Zangheri
- Department of Chemistry, Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Luca Cevenini
- Department of Chemistry, Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Laura Anfossi
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125 Turin, Italy
| | - Claudio Baggiani
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125 Turin, Italy
| | - Patrizia Simoni
- Department of Medical and Surgical Sciences, Alma Mater Studiorum - University of Bologna, Via Massarenti 9, 40138 Bologna, Italy
| | - Fabio Di Nardo
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125 Turin, Italy
| | - Aldo Roda
- Department of Chemistry, Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
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Anfossi L, Baggiani C, Giovannoli C, Biagioli F, D’Arco G, Giraudi G. Optimization of a lateral flow immunoassay for the ultrasensitive detection of aflatoxin M1 in milk. Anal Chim Acta 2013; 772:75-80. [DOI: 10.1016/j.aca.2013.02.020] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/13/2012] [Accepted: 02/12/2013] [Indexed: 11/27/2022]
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11
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Tess ME, Saul SJ. Food Safety—Risk Assessment Strategies for Mycotoxin Analysis. CEREAL FOOD WORLD 2012. [DOI: 10.1094/cfw-57-3-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M. E. Tess
- Charm Sciences, Inc., Lawrence, MA, U.S.A
| | - S. J. Saul
- Charm Sciences, Inc., Lawrence, MA, U.S.A
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12
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Anfossi L, Baggiani C, Giovannoli C, D'Arco G, Giraudi G. Lateral-flow immunoassays for mycotoxins and phycotoxins: a review. Anal Bioanal Chem 2012; 405:467-80. [PMID: 22543716 DOI: 10.1007/s00216-012-6033-4] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 04/03/2012] [Accepted: 04/06/2012] [Indexed: 01/06/2023]
Abstract
Natural toxin (for example mycotoxin and phycotoxin) contamination of food is of safety and economic concern, so much effort is devoted to the development of screening methods which enable the toxins to be continuously and widely monitored in food and feed. More generally speaking, rapid and non-instrumental assays for detection of a variety of food contaminants are generating ever-increasing scientific and technological interest because they enable high-throughput, economical, on-site monitoring of such contaminants. Among rapid methods for first-level screening of food contaminants, lateral-flow immunoassay (LFIA), also named immunochromatographic assay or immune-gold colloid immunoassay, has recently attracted scientific and industrial interest because of its attractive property of enabling very rapid, one-step, in-situ analysis. This review focuses on new aspects of the development and optimization of lateral-flow devices for mycotoxin and phycotoxin detection, including strategies for management of matrix interference and, particularly, for investigation of the improvements achieved by signal-enhancing strategies or by application of non-gold nanoparticle signal reporters.
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Affiliation(s)
- Laura Anfossi
- Department of Analytical Chemistry, University of Turin, Turin, Italy.
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Mirasoli M, Buragina A, Dolci LS, Simoni P, Anfossi L, Giraudi G, Roda A. Chemiluminescence-based biosensor for fumonisins quantitative detection in maize samples. Biosens Bioelectron 2012; 32:283-7. [DOI: 10.1016/j.bios.2011.11.039] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 11/22/2011] [Accepted: 11/23/2011] [Indexed: 10/14/2022]
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14
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Park L, Bae H, Kim YT, Lee JH. Rapid monitoring of alkaline phosphatase in raw milk using chemiluminescence detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:156-160. [PMID: 32938124 DOI: 10.1039/c0ay00383b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A simple biosensor with 1,1'-oxalyldiimidazole chemiluminescence (ODI-CL) detection capable of rapidly quantifying and screening alkaline phosphatase (ALP) in raw and pasteurized milk was developed as an indicator for confirming whether commercial milk is properly pasteurized. Fluorescein was formed when standards containing 1.0% milk with different activities of ALP and samples containing 1.0% raw milk were incubated with fluorescein diphosphate (FDP) for 15 min at room temperature. The relative CL intensity of fluorescein measured with the addition of 80 mM H2O2 and ODI formed from the reaction of 2.0 μM bis(2,4,6-trichlorophenyl) oxalate and 10.0 μM 4-methyl imidazole in ethyl acetate was proportional to the concentration of ALP in milk. The range (39∼2500 mU/L) of linear calibration curve (R2 = 0.998) for the quantification of ALP in milk using ODI-CL detection was wider than those using currently applied fluorescence and 1,2-dioxetane CL detections. Also, the limit of detection (3.7 mU/L) determined using the former detection, which has good precision, was lower than those reported using the latter detections. In conclusion, the cost-effective and highly sensitive biosensor with ODI-CL detection can be applied to monitor whether milk is pasteurized according to acceptable ALP activities threshold level (350 mU/L) for public safety newly adopted by US and EU and the internal investigation level (100 mU/L) proposed by EU.
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Affiliation(s)
- Lucienne Park
- Poolesville High School, Poolesville, MD 20837, USA
- Luminescent MD, LLC, Hagerstown, MD 21742, USA.
| | - Hojae Bae
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Young-Teck Kim
- Department of Packaging Science, Clemson University, Clemson, SC 29634, USA
| | - Ji Hoon Lee
- Luminescent MD, LLC, Hagerstown, MD 21742, USA.
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Anfossi L, Calderara M, Baggiani C, Giovannoli C, Arletti E, Giraudi G. Development and application of a quantitative lateral flow immunoassay for fumonisins in maize. Anal Chim Acta 2010; 682:104-9. [DOI: 10.1016/j.aca.2010.09.045] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 08/31/2010] [Accepted: 09/24/2010] [Indexed: 11/30/2022]
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Rankin S, Christiansen A, Lee W, Banavara D, Lopez-Hernandez A. Invited review: The application of alkaline phosphatase assays for the validation of milk product pasteurization. J Dairy Sci 2010; 93:5538-51. [DOI: 10.3168/jds.2010-3400] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 09/03/2010] [Indexed: 11/19/2022]
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18
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PAYNE CLARE, WILBEY RANDREW. Alkaline phosphatase activity in pasteurized milk: A quantitative comparison of Fluorophos and colourimetric procedures. INT J DAIRY TECHNOL 2009. [DOI: 10.1111/j.1471-0307.2009.00503.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Shephard GS. Aflatoxin analysis at the beginning of the twenty-first century. Anal Bioanal Chem 2009; 395:1215-24. [DOI: 10.1007/s00216-009-2857-y] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 05/15/2009] [Accepted: 05/19/2009] [Indexed: 10/20/2022]
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20
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