SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2019
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IF 2.931
Lirong Jiang,Qiao Hu,Tianhong Chen,Douyong Min,Hou-Qun Yuan,Guang-Ming Bao
Mutagenic formaldehyde (FA) is usually abused to preserve seafood, thus it is very necessary to detect harmful formaldehyde in seafood with a simple and effective method. In this work, we facilely prepared a new fluorescent probe RBNA , which showed a remarkable fluorescence lighting-up response towards FA with high sensitivity and selectivity, fast response (within 5 min) and a low detection limit (0.21 μM). The fluorescence intensity is linearly related to the concentration of FA ranging from 0 to 120 μM (R 2 = 0.9952), which enables it to quantitatively determine the concentration of FA. This probe was successfully used to detect FA in seafood samples with good recoveries (80–119%). Furthermore, the probe has been utilized to image FA in living cells and zebrafish with good performance. Therefore, this probe has a good capability for rapid and sensitive determination of FA in seafood.
研究领域:
分析化学
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食品科学
·
生物医学
✓ 已验证
DOI
PubMed
高影响因子
Advanced Sustainable Systems
·
2024
·
IF 6.5
Quanxin Duan,Yushan He,Xiang Long,Jiayang Wang,Changjian Ni,Shaogui Wu
Carbon dots (CDs) have emerged as versatile fluorescent nanomaterials for diverse applications. The synthesis of CDs from natural products offers a sustainable alternative to chemical methods. This study presents the preparation of green fluorescent CDs (G-CDs) using seafood mushrooms as the carbon source and 5-amino-2-methylphenol as the nitrogen source through a hydrothermal approach. The G-CDs exhibit maximum excitation/emission peaks at 467/519 nm and a high quantum yield of up to 17.2% in ethanol. Additionally, the G-CDs demonstrate excellent photostability, salt tolerance, and chemical stability. The excitation-independent emissions suggest the presence of unique surface-state luminescent centers. The application of the G-CDs as an anti-counterfeiting fluorescent ink is demonstrated. This work highlights the promise of converting natural food sources into high-performance CDs, expanding their utility across various domains including biomedicine, sensing, and security.
研究领域:
材料科学
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生物医学
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食品安全
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Wenjing Wang,Rui Feng,Kaiyue Wei,Jiashuo Xu,Wenhui Dong,Jiao Li,Jianan Sun,Sai Wang,Xiangzhao Mao
Excessive histamine in spoiled seafood poses considerable health hazards to consumers, yet its detection is challenging due to complicated sample preparation and detection methodologies. Herein, an integrated colorimetric platform containing Poly (vinyl alcohol) (PVA)/ hyaluronic acid (HA) microneedle patchs-assisted extraction and aptasensor-based detection was reported. The developed PVA/HA microneedle patches facilitated on-site histamine extraction from seafood through a two-minute press-and-peel procedure. To enhance detection efficacy, strategies for generating high-affinity aptamers with specific terminal-fixed structures and constructing AuNPs@FeP-chitosan oligosaccharide (COS) nanozyme boosting catalytic efficiency were proposed. Utilizing the aptamer HIS3-T2 in conjunction with the nanozyme, a colorimetric aptasensor was developed. Integrated with the patches, the aptasensor achieved high sensitivity and selectivity, detecting histamine within a range of 2~800 nM with a limit of detection (LOD) of 1.89 nM. Validated on real-world salmon and shrimp samples, this integrated system promises rapid and accurate histamine monitoring, offering great reference for similar applications in food quality control.
研究领域:
生物传感技术
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食品安全
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2024
·
IF 3.8
Fan Bai,Xu Yang,Cheng Yang,Hai-Long Qian,Xiu-Ping Yan
The unintentional dissemination of uranium into environment poses substantial risks to both food sources and human populations. An advanced method for convenient and accurate detection of uranium in food is thus a pressing need. Herein, a novel magnetic amidoxime functionalized covalent organic framework (TpDb-AO@Fe 3 O 4 ), prepared with 2,5-dinitrobenzonitrile, 1,3,5-triformylphloroglucinol and hydroxylamine hydrochloride, was synthesized as adsorbent for magnetic-solid phase extraction (MSPE) of UO 2 2+ . Furthermore, a TpDb-AO@Fe 3 O 4 based MSPE coupled with UV–vis spectrophotometer was successfully developed to realize the determination of uranyl ions with low limit of detection of 1.63 μg L −1 , wide linear range of 10 − 200 μg L −1 . The spiking recoveries in real seafood samples (tuna, yesso scallop, kelp, eel, hairtail) ranged from 94.1 % − 106.8 %. The intraday ( n = 5) and interday ( n = 5) relative standard deviation (RSD) for determination of UO 2 2+ were 3.33 % and 6.23 %, respectively. This approach represents an advancement in the rapid extraction and sensitive quantification of trace uranium contaminants in food matrices, thereby contributing to enhanced environmental monitoring and public health safeguards.
研究领域:
环境科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Huiwen Liu,Limin Cao,Jianxin Sui,Hong Lin,Xiudan Wang,Kaiqiang Wang
Conventional anthocyanin-based colorimetric indicator labels can achieve qualitative differentiation of seafood freshness levels, but exhibit low responsiveness to early-stage freshness changes. Herein, a high-sensitive smart hydrogel patch with multiplexed colorimetric and surface-enhanced Raman spectroscopy (SERS) features was developed. The structural basis of anthocyanins served as a novel colorimetric and SERS dual-mode sensing unit for smart hydrogel patch was first uncovered. The colorimetric function of the patch can be used to qualitatively identify the freshness of seafoods, and the SERS function can be used to quantitatively detect the TVB-N content in seafoods. The results revealed that within a pH range of 2.0 to 12.0, the patch's color shifted from bright red to dark green, accompanied by alterations in anthocyanin's characteristic Raman peaks at 1287 cm −1 , 1320 cm −1 , and 1642 cm −1 due to structural transitions. This study provides a new method for sensitive detection of seafood freshness using a smart hydrogel patch.
研究领域:
食品科学
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生物化学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Wenliang Wang,Xingjin Zhao,Yuanyuan Xia,Yanyi Xue,Jinbao Cheng,Feifei Yang,Yong Cui,Xinchun Chen,Ruanyu Wang,Xinping Li
A new type of bio-amine-response colorimetric film with excellent flexibility and biodegradability was fabricated by the main components of sugarcane, including sugarcane skin anthocyanin (SSA), bagasse cellulose fibers (CF), and cellulose nanofibers (CNF). Benefiting from the rich hydroxyl groups and large specific surface area of CNF, the sample of adding 10 wt% CNF in CF (CF/CNF 10 /SSA) presented good mechanical properties (33 Mpa), reusability (10 cycles), excellent color change (ΔE＞5), and excellent antioxidant properties (the free radical scavenging rate of ABTS : 86%). Furthermore, the film had good water resistance (water contact angle only decreases about 20° after 60 s), color stability up to 28 days, and rapid response to ammonia (1–2 s). Thus, CF/CNF 10 /SSA was successfully used as a low-cost, inoxidizable, and pH/NH 3 responsive smart tag to monitor the freshness of seafood in real-time, achieving the high-value utilization of sugarcane waste components.
研究领域:
食品科学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Jinru Zhou,Yanbo Wang,Lei Zheng,Huan Li
Seafood allergy represents a critical public health challenge, necessitating the implementation of sensitive, precise, and quantitative detection methods for seafood allergens to guarantee accurate food labeling. Parvalbumin (PV) and tropomyosin (TM) are recognized as the primary allergens in fish and shellfish. Herein, we designed a fluorescence sensing system for the simultaneous detection of PV and TM that employs aptamer-initiated catalytic hairpin assembly (CHA). In this strategy, we utilized four hairpin dimers (H1, H2, H3, and H4) as foundational elements to create the sensing scaffolds. The CHA-based fluorescent aptasensor demonstrated an extensive linear range, ranging from 0.001 μg/mL to 100 μg/mL, with detection limits of 0.29 μg/mL for PV and 0.27 μg/mL for TM. This biosensor demonstrates exceptional selectivity and stability, in addition to good accuracy. Importantly, this biosensor has been effectively utilized to quantify PV and TM in four different commercial food products, achieving satisfactory accuracy. With these advantages, our proposed CHA-based aptasensor can offer a universal tool for sensitive and precise detection of food allergens in commercial foods throughout the supply chain.
研究领域:
生物化学
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食品安全检测
·
分子诊断
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2021
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IF 7.46
Qing Hua,Feiyan Tang,Xiaobin Wang,Min Li,Xiaowen Gu,Wenjie Sun,Feng Luan,Chunyuan Tian,Xuming Zhuang
In this work, the electrochemiluminescence (ECL) of europium sulfide nanocrystals (EuS NCs) in K 2 S 2 O 8 cathode co-reagents was studied. Based on selective quenching of the ECL emission from EuS NCs by Hg 2+ , a novel label-free ECL sensor for the highly sensitive and selective detection of Hg 2+ was developed. A linear response between the ECL intensity and the concentration of Hg 2+ was obtained in the range from 0.1 pM to 10 5 pM, achieving a detection limit of 0.028 pM. Moreover, this sensor was also successfully applied to the detection of Hg 2+ in seafood with good recovery. The current study provides a green and feasible method for the detection of trace Hg 2+ in seafood.
研究领域:
分析化学
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环境科学
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食品科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Chenyue Zhou,Da-Wen Sun,Ji Ma,Anjun Qin,Ben Zhong Tang,Xiao-Ru Lin,Shi-Lin Cao
Total volatile basic nitrogen (TVB-N) is a vital indicator for assessing seafood freshness and edibility. Rapid on-site detection of volatile basic nitrogen (VBN) is of significant importance for food safety monitoring. In this study, highly luminescent self-assembled copper nanoclusters (Cu NCs@p-MBA), synthesized using p-mercaptobenzoic acid (p-MBA) as the ligand, were utilized for the sensitive detection of VBNs. Under acidic conditions, Cu NCs@p-MBA formed compact and well-organized nanosheets through noncovalent interactions, accompanied by intense orange fluorescence emission (651 nm). The benzene carboxylic acid part of Cu NCs@p-MBA provided the driving force for supramolecular assembly and exhibited a strong affinity for amines, particularly low-molecular-weight amines such as ammonia (NH3) and trimethylamine (TMA). The quantitative determination of NH3 and TMA showed the detection limits as low as 0.33 and 0.81 ppm, respectively. Cu NCs@p-MBA also demonstrated good responsiveness to putrescine and histamine. Through density functional theory (DFT) calculations and molecular dynamics (MD) simulations, the precise atomic structure, assembly structure, luminescent properties, and reaction processes of Cu NCs@p-MBA were studied, revealing the sensing mechanism of Cu NCs@p-MBA for highly sensitive detection of VBNs. Based on the self-assembled Cu NCs@p-MBA nanosheets, portable fluorescent labels were developed for semiquantitative, visual, and real-time monitoring of seafood freshness. Therefore, this study exemplified the high sensitivity of self-assembly induced emission (SAIE)-type Cu NCs@p-MBA for VBNs sensing, offering an efficient solution for on-site monitoring of seafood freshness.
研究领域:
食品科学
·
分析化学
·
生物传感
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2018
·
IF 6.434
Minrui Liu,Xia Lu,Aman Khan,Zhenmin Ling,Peng Wang,Yu Tang,Pu Liu,Xiangkai Li
Seafood consumption is widely considered as the primary route for human exposure to the neurotoxin methylmercury (MeHg) that is produced by certain anaerobic microorganisms and can bioaccumulate to high concentration levels in natural aquatic food webs. In this study, a novel methylmercury-binding peptide with seven amino acids was displayed on the cell surfaces of Escherichia coli strain W-1, which was isolated from fish feces and fused with ice nucleation protein. These cells exhibited high affinity and selectivity toward methylmercury. They efficiently removed more than 96% of 12 μM methylmercury, and accumulation of methylmercury in the engineered strain was four times higher than that in the wild type. Transmission electron microscopy confirmed methylmercury accumulation on cell membranes. Carassius auratus was fed by engineered bacteria, which showed a decrease in methylmercury concentration in muscles of about 36.3 ± 0.7%; whereas an increase in methylmercury concentration was observed in the feces (36.7 ± 0.8%) in comparison to the control group. The engineered strain in the gut captured methylmercury and prevented it’s absorption by muscles, while some bacteria with methylmercury were excreted in the feces. The surface-engineered E. coli effectively protected fish from methylmercury contamination.
研究领域:
环境科学
·
微生物学
·
毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
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2013
·
IF 2.487
Shanshan Zhu,Futao Hu,Ting Yang,Ning Gan,Daodong Pan,Yuting Cao,Dazhen Wu
Analysis of tributyltin chloride (TBT) in environmental samples, such as seawater, is important in order to evaluate the TBT contamination and accumulation in the trophic chain. The environmental impact of organotin compounds has been a particular focus of analytical studies. The present study reports the use of molecular imprinting technology coupled with liquid chromatography–tandem mass spectrometry (LC–MS/MS) to determine trace amounts of TBT in seawater and seafood (mussel tissue samples). The imprinted polymer was synthesized by a non-covalent free-radical approach using acrylamide (AM) as a monomer and TBT as a template molecule in acetonitrile solvent (polymerization media). The imprinted polymer synthesized by this approach exhibited good adsorptive capacity and allowed specific retention of TBT. Recoveries of TBT in seawater samples spiked with different TBT concentrations ranged from 67.2% to 81.1% with peak area precision (RSD) < 3.7%, and recoveries of TBT in mussel tissue samples ranged from 75.0% to 94.2% with RSD < 4.8%.
研究领域:
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2016
·
IF 4.712
Sheng-Dong Pan,Xiao-Hong Chen,Hao-Yu Shen,Xiao-Ping Li,Mei-Qiang Cai,Yong-Gang Zhao,Mi-Cong Jin
This article has been retracted: please see Elsevier Policy on Article Withdrawal ( https://www.elsevier.com/about/our-business/policies/article-withdrawal ). This article has been retracted at the request of the Editor after the corresponding author pointed the Editor to comments from an anonymous reader. The article reports electron micrographs of different preparations while showing identical images as used in previous publications by the same authors. The particles in Figure 4C (SEM image of Fe3O4@SiO2) are identical to each other and the corresponding author confirmed that these have been copy-pasted. In addition, these particles have previously been communicated as different substances in Figure 1B from Pan et al., J. Mater. Chem. A , 2015,3, 23042-23052 (DOI: 10.1039/C5TA05840F ) and Figure 3F from Pan et al., Anal. Methods , 2017,9, 5281-5292 (DOI: 10.1039/C7AY01444A ). Furthermore, the curves in Figure 7, especially the baseline, shows a remarkable similarity to Fig. 8 from Pan et al., J. Mater. Chem. A , 2015,3, 23042-23052 (DOI: 10.1039/C5TA05840F ) and Fig. 5F from Pan et al., J. Mater. Chem. A , 2014,2, 15345-15356 (DOI: 10.1039/c4ta02600d ). The manipulation of images and data in this way is a serious offense to the integrity of the scientific community and casts doubts on all the data, and accordingly also the conclusions based on that data, in this publication. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.
研究领域:
分析化学
·
环境科学
·
食品安全
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）