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< Page ,Total 49 >
Oxygen vacancy-enriched NiO/NiPc heterojunction for highly efficient and sensitive non-enzymatic glucose sensing SCIE
期刊论文 | 2025 , 208 | MICROCHEMICAL JOURNAL
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Abstract :

A highly efficient and sensitive non-enzymatic glucose sensor fabricated using NiO/NiPc composite nanomaterials was introduced by this study. The sensor employed a unique design by modifying the ITO electrode with the NiO/NiPc heterojunction. This enhancement was achieved by improving charge separation and transfer through the type-II heterojunction formed between NiO and NiPc. The integration of NiO/NiPc composite materials also improved the electrocatalytic activity. This enhancement was attributed to the increased concentration of oxygen vacancies, thereby boosting the overall performance of the sensor. The results of the sensor application demonstrated that under the optimized conditions (pH 4.0, -0.3 V bias), the sensor exhibited remarkable sensitivity and selectivity towards glucose, with a linear relationship between the photocurrent change and glucose concentration. The detection limit was as low as 0.016 nM, and the sensitivity was 4.146 mu A & sdot;mM- 1 & sdot;cm- 2. The sensor demonstrated excellent repeatability, stability, and high recovery rate in real sweat sample testing, highlighting its great potential for practical glucose detection applications.

Keyword :

Glucose Glucose NiO NiO NiPc NiPc Photoelectrochemical sensor Photoelectrochemical sensor

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GB/T 7714 Xue, Xiaoyan , Wu, Wenru , Yang, Yating et al. Oxygen vacancy-enriched NiO/NiPc heterojunction for highly efficient and sensitive non-enzymatic glucose sensing [J]. | MICROCHEMICAL JOURNAL , 2025 , 208 .
MLA Xue, Xiaoyan et al. "Oxygen vacancy-enriched NiO/NiPc heterojunction for highly efficient and sensitive non-enzymatic glucose sensing" . | MICROCHEMICAL JOURNAL 208 (2025) .
APA Xue, Xiaoyan , Wu, Wenru , Yang, Yating , Lin, Yue , Luo, Fang , Lin, Cuiying et al. Oxygen vacancy-enriched NiO/NiPc heterojunction for highly efficient and sensitive non-enzymatic glucose sensing . | MICROCHEMICAL JOURNAL , 2025 , 208 .
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Oxygen vacancy-enriched NiO/NiPc heterojunction for highly efficient and sensitive non-enzymatic glucose sensing Scopus
期刊论文 | 2025 , 208 | Microchemical Journal
A fluorescence and colorimetric dual-mode biosensor based on the catalytic activity of gold nanoparticles and magnetic upconversion nanoparticles for the detection of microRNAs SCIE
期刊论文 | 2025 , 214 | MICROCHEMICAL JOURNAL
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Abstract :

The overexpression of microRNA-21 (miRNA-21) is closely associated with gastric cancer (GC) and may be used as a biomarker to diagnose GC early. Here, a colorimetry and fluorescence dual-mode biosensor for the detection of miRNA-21 was developed from polydopamine-coated magnetic upconversion nanoparticles (Fe3O4@UCNP@PDA) and aptamer-modified gold nanoparticles (AuNP-apt). The strong adsorption of singlestranded DNA by PDA results in close proximity between the energy donors (UCNPs) and acceptors (AuNPs), resulting in luminescence quenching of the UCNPs. The miRNA-21 can hybridize with the apt-conjugated AuNPs, and the AuNPs move away from the UCNPs, which results in the luminescence recovery of the UCNPs and the catalytic activity of the AuNPs. After H2O2 and tetrapaminophenylethylene were added, the yellow solution turned green and gradually deepened with increasing miRNA-21 concentration. Under optimal conditions, the detection limits of miRNA-21 by fluorescence and colorimetry assays are 8.90 pM and 185 pM, respectively. In addition, the developed approach was utilized to measure miRNA-21 in serum samples, and the recovery rates ranged from 105.4-107.1% and 98.5-109.3%, respectively. The above results indicate great promise for the early diagnosis of GC because of its high sensitivity and selectivity.

Keyword :

Dual-mode detection Dual-mode detection Magnetic upconversion nanoparticle Magnetic upconversion nanoparticle microRNA-21 microRNA-21 Polydopamine Polydopamine Serum Serum

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GB/T 7714 Chen, Wu , Guo, Mengfan , Chen, Zeyu et al. A fluorescence and colorimetric dual-mode biosensor based on the catalytic activity of gold nanoparticles and magnetic upconversion nanoparticles for the detection of microRNAs [J]. | MICROCHEMICAL JOURNAL , 2025 , 214 .
MLA Chen, Wu et al. "A fluorescence and colorimetric dual-mode biosensor based on the catalytic activity of gold nanoparticles and magnetic upconversion nanoparticles for the detection of microRNAs" . | MICROCHEMICAL JOURNAL 214 (2025) .
APA Chen, Wu , Guo, Mengfan , Chen, Zeyu , Sun, Ying , Huang, Yudian , Chen, Yushan et al. A fluorescence and colorimetric dual-mode biosensor based on the catalytic activity of gold nanoparticles and magnetic upconversion nanoparticles for the detection of microRNAs . | MICROCHEMICAL JOURNAL , 2025 , 214 .
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A fluorescence and colorimetric dual-mode biosensor based on the catalytic activity of gold nanoparticles and magnetic upconversion nanoparticles for the detection of microRNAs Scopus
期刊论文 | 2025 , 214 | Microchemical Journal
Dual-signal point-of-care testing method for T-2 toxin utilizing target-responsive DNA hydrogel and starch iodide paper SCIE
期刊论文 | 2025 , 210 | MICROCHEMICAL JOURNAL
WoS CC Cited Count: 1
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Abstract :

The persistence of T-2 toxin in food and feed matrices renders it a pervasive contaminant, impacting both human and animal health. Traditional detection methods suffer from cumbersome instrumentation and intricate procedures, rendering on-site detection of T-2 toxin unfeasible. Therefore, we have constructed a real-time detection method for T-2 toxin detection by employing a target-responsive DNA hydrogel in conjunction with potassium iodide starch test paper. This method integrates both colorimetric and distance-based signal outputs, offering a streamlined and effective approach for the on-site detection of T-2 toxin. The specific binding of the target to the aptamer in the DNA hydrogel results in the collapse of the hydrogels structure, which changes the viscosity of the system and released horseradish peroxidase in the hydrogel wrapped, and then produces blue-purple marks of different lengths on the starch iodide papers to achieve the specific detection of T-2 toxin. Under optimized conditions, the assay exhibits a detection range spanning from 10 ng/mL to 10 mg/mL for the toxin, with a detection limit of 12.83 ng/mL. The proposed method has been successfully applied for the detection of real corn samples with satisfied result. Such colorimetric-distance dual signal detection method offers notable advantages, including straightforward operation, clear signal interpretation, and practical utility. Its implementation enables rapid, on-the-spot detection of T-2 toxin, particularly beneficial in resource-limited regions and less developed countries.

Keyword :

Point-of-care testing Point-of-care testing Starch iodide paper Starch iodide paper T-2 toxin T-2 toxin Target-responsive DNA hydrogel Target-responsive DNA hydrogel

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GB/T 7714 Deng, Ye , Lin, Jiarong , Wang, Jingxuan et al. Dual-signal point-of-care testing method for T-2 toxin utilizing target-responsive DNA hydrogel and starch iodide paper [J]. | MICROCHEMICAL JOURNAL , 2025 , 210 .
MLA Deng, Ye et al. "Dual-signal point-of-care testing method for T-2 toxin utilizing target-responsive DNA hydrogel and starch iodide paper" . | MICROCHEMICAL JOURNAL 210 (2025) .
APA Deng, Ye , Lin, Jiarong , Wang, Jingxuan , Lin, Yue , Luo, Fang , Weng, Zuquan et al. Dual-signal point-of-care testing method for T-2 toxin utilizing target-responsive DNA hydrogel and starch iodide paper . | MICROCHEMICAL JOURNAL , 2025 , 210 .
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Dual-signal point-of-care testing method for T-2 toxin utilizing target-responsive DNA hydrogel and starch iodide paper Scopus
期刊论文 | 2025 , 210 | Microchemical Journal
Carbon black imprinted o-diaminobenzene sensing platform for sensitive electrochemical detection of interleukin 6 SCIE
期刊论文 | 2025 , 41 (4) , 487-494 | ANALYTICAL SCIENCES
Abstract&Keyword Cite Version(2)

Abstract :

As a typical proinflammatory cytokine, interleukin 6 (IL-6) exhibits great influence on treating diseases (e.g., urocystitis) and adjusting immune. Normally, the IL-6 degree keeps a low content (< 40.0 pg mL(-1)) in bodies, but when its degree becomes higher, several serious conditions (e.g., urocystitis and infections) may occur. Hence, it is very essential to design a highly effective technology for monitoring IL-6 as a biomarker. In the present work, through adopting carbon black (CB) as substrate substance, o-diaminobenzene as electropolymerized monomer and [Fe(CN)(6)](4-/3-) as the signal probe, a low-cost, sensitive and simple molecularly imprinted polymer (MIP) electrochemical sensing platform was designed to detect the IL-6 degree. The experiments revealed that the current of [Fe(CN)(6)](4-/3- )probe at the MIP sensor would decrease along with the increase of IL-6 degree. Owing to the prominent properties of CB (e.g., high conductivity and surface area as well as stability) and high target-recognition capability of MIP, the as-proposed MIP sensor offers wide linearity (0.1-800 pg mL(-1)) and low analytical limit (0.03 pg mL(-1)); meanwhile, it possesses good repeatability, stability, and practical applications. It is, thus, expected this simple MIP sensor has some application value for IL-6 detection.

Keyword :

Carbon black Carbon black Electrochemical sensor Electrochemical sensor Interleukin 6 Interleukin 6 Molecular imprinting Molecular imprinting

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GB/T 7714 Cui, Xu , Chen, Zhiqiang , Xu, Longyao et al. Carbon black imprinted o-diaminobenzene sensing platform for sensitive electrochemical detection of interleukin 6 [J]. | ANALYTICAL SCIENCES , 2025 , 41 (4) : 487-494 .
MLA Cui, Xu et al. "Carbon black imprinted o-diaminobenzene sensing platform for sensitive electrochemical detection of interleukin 6" . | ANALYTICAL SCIENCES 41 . 4 (2025) : 487-494 .
APA Cui, Xu , Chen, Zhiqiang , Xu, Longyao , Wu, Changwei , Qiu, Bin , Zhou, Chaoming . Carbon black imprinted o-diaminobenzene sensing platform for sensitive electrochemical detection of interleukin 6 . | ANALYTICAL SCIENCES , 2025 , 41 (4) , 487-494 .
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Carbon black imprinted o-diaminobenzene sensing platform for sensitive electrochemical detection of interleukin 6 EI
期刊论文 | 2025 , 41 (4) , 487-494 | Analytical Sciences
Carbon black imprinted o-diaminobenzene sensing platform for sensitive electrochemical detection of interleukin 6 Scopus
期刊论文 | 2025 , 41 (4) , 487-494 | Analytical Sciences
Target-Induced Chemical Reaction Modulated Optical Fiber-Gated Organic Photoelectrochemical Transistor for in Vivo H2S Detection SCIE
期刊论文 | 2025 , 97 (13) , 7467-7475 | ANALYTICAL CHEMISTRY
WoS CC Cited Count: 2
Abstract&Keyword Cite Version(2)

Abstract :

Real time detection of hydrogen sulfide (H2S) in deep brain regions is of great significance. Photoelectrochemical (PEC) biosensors hold promise for real-time monitoring but low sensitivity due to the use of small electrode restrained its application. In this study, a miniaturized sensor that integrates organic photoelectrochemical transistors (OPECTs) with optical fiber (OF) microelectrodes was designed for the first time, which can amplify the small PEC signal into large channel current change. A conductive gold layer and cuprous oxide nanoparticles (Cu2O NPs) were sequentially deposited onto the OF, followed by a Nafion polymer coating to enhance anti-interference capabilities. Cu2O reacts with H2S to generate Cu2S. The resulting Cu2O/Cu2S heterojunction induces changes in the PEC signal and channel current. Compared to a conventional PEC system, the OPECT sensor has higher sensitivity and lower detection limit, enabling monitoring of H2S concentration fluctuations within the rat brain, which demonstrates the approach's capability for highly sensitive in vivo biomarker detection.

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GB/T 7714 Zeng, Yulan , Wang, Xinyang , Chen, Zhonghui et al. Target-Induced Chemical Reaction Modulated Optical Fiber-Gated Organic Photoelectrochemical Transistor for in Vivo H2S Detection [J]. | ANALYTICAL CHEMISTRY , 2025 , 97 (13) : 7467-7475 .
MLA Zeng, Yulan et al. "Target-Induced Chemical Reaction Modulated Optical Fiber-Gated Organic Photoelectrochemical Transistor for in Vivo H2S Detection" . | ANALYTICAL CHEMISTRY 97 . 13 (2025) : 7467-7475 .
APA Zeng, Yulan , Wang, Xinyang , Chen, Zhonghui , Luo, Fang , Qiu, Bin , Fu, Fengfu et al. Target-Induced Chemical Reaction Modulated Optical Fiber-Gated Organic Photoelectrochemical Transistor for in Vivo H2S Detection . | ANALYTICAL CHEMISTRY , 2025 , 97 (13) , 7467-7475 .
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Target-Induced Chemical Reaction Modulated Optical Fiber-Gated Organic Photoelectrochemical Transistor for in Vivo H2S Detection Scopus
期刊论文 | 2025 , 97 (13) , 7467-7475 | Analytical Chemistry
Target-Induced Chemical Reaction Modulated Optical Fiber-Gated Organic Photoelectrochemical Transistor for in Vivo H2S Detection EI
期刊论文 | 2025 , 97 (13) , 7467-7475 | Analytical Chemistry
Gold Nanoparticles/Graphdiyne as Sensing Substrate Coupled with UiO-66/ferrocene as Signaling-Amplifier for Sandwich-Type Electrochemical Immunosensing of Interleukin-6 SCIE
期刊论文 | 2025 , 172 (3) | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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Abstract :

Interleukin-6 (IL-6) is a common proinflammatory cytokine and can be adopted as an important biomarker for several diseases including nasopharynx cancer, pancreatitis, infections, and cardiovascular. It is thus necessary to design an effective method for monitoring IL-6. Herein, by preparing gold nanoparticles/graphdiyne (Au/GRD) nanohybrid with simple electroless deposition as the sensing substrate and UiO-66 metal-organic frameworks/ferrocene (UiO/Fc) as the signaling-amplifier, a highly efficient sandwich-type electrochemical immunosensing (SEI) platform was proposed for IL-6 determination. The superior electrical properties, easy preparation, high surface area, and stability of Au/GRD make it a desirable substrate to immobilize the primary antibody of IL-6. Meanwhile, the unique structure of UiO-66 is beneficial to immobilizing the Fc probe and the secondary antibody. By optimizing experimental conditions, the Fc current obtained at the as-designed SEI platform increases along with IL-6 increase, and the related linearity is 0.5 pg ml-1-1200.0 pg ml-1 coupled with a low detection limit of 0.2 pg ml-1. It is expected the as-designed SEI platform based on Au/GRD and UiO/Fc shows potential applications for IL-6 analysis.

Keyword :

electrochemical sensor electrochemical sensor graphdiyne graphdiyne immunosensor immunosensor interleukin-6 interleukin-6 nasopharynx cancer nasopharynx cancer UiO-66 UiO-66

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GB/T 7714 Wang, Xiaoyan , Zheng, Hao , Chen, Huiling et al. Gold Nanoparticles/Graphdiyne as Sensing Substrate Coupled with UiO-66/ferrocene as Signaling-Amplifier for Sandwich-Type Electrochemical Immunosensing of Interleukin-6 [J]. | JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2025 , 172 (3) .
MLA Wang, Xiaoyan et al. "Gold Nanoparticles/Graphdiyne as Sensing Substrate Coupled with UiO-66/ferrocene as Signaling-Amplifier for Sandwich-Type Electrochemical Immunosensing of Interleukin-6" . | JOURNAL OF THE ELECTROCHEMICAL SOCIETY 172 . 3 (2025) .
APA Wang, Xiaoyan , Zheng, Hao , Chen, Huiling , Qiu, Bin , Liu, Yunliang , Ye, Qing . Gold Nanoparticles/Graphdiyne as Sensing Substrate Coupled with UiO-66/ferrocene as Signaling-Amplifier for Sandwich-Type Electrochemical Immunosensing of Interleukin-6 . | JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2025 , 172 (3) .
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Gold Nanoparticles/Graphdiyne as Sensing Substrate Coupled with UiO-66/ferrocene as Signaling-Amplifier for Sandwich-Type Electrochemical Immunosensing of Interleukin-6 Scopus
期刊论文 | 2025 , 172 (3) | Journal of the Electrochemical Society
Gold Nanoparticles/Graphdiyne as Sensing Substrate Coupled with UiO-66/ferrocene as Signaling-Amplifier for Sandwich-Type Electrochemical Immunosensing of Interleukin-6 EI
期刊论文 | 2025 , 172 (3) | Journal of the Electrochemical Society
Sandwich-like electrochemical immunosensing of IL-17 based on silver nanoparticles/graphdiyne and methylene blue/UiO-66-NH2 SCIE
期刊论文 | 2025 , 192 (5) | MICROCHIMICA ACTA
Abstract&Keyword Cite Version(2)

Abstract :

IL-17 (interleukin-17) is a common proinflammatory cytokine and can be adopted as an important biomarker for several diseases; it is thus very necessary to design an effective method for monitoring IL-17. Herein, by preparing silver nanoparticles/graphdiyne (Ag/GDY) with simple electroless deposition as the sensing platform and methylene blue/UiO-66-NH2 MOFs (MB/MOFs) as the signaling-amplifier, a highly efficient sandwich-like electrochemical immunosensing (SLEI) platform was designed for IL-17 detection. The superior electrical property, easy preparation, large surface area, and high stability of Ag/GDY make it a desirable substrate to immobilize primary antibody of IL-17. Meanwhile, the unique structure of UiO-66-NH2 is beneficial to immobilize MB probe and secondary antibody. By optimizing experimental conditions, the MB current obtained at the as-designed SLEI platform increases along with IL-17 increase, and the related linearity is 1.0 pg mL(-1)-1.0 ng mL(-1) coupled with a low detection limit of 0.3 pg mL(-1). It is expected that the SLEI platform based on Ag/GDY and MB/MOFs shows some potential application for IL-17 detection.

Keyword :

Differential pulse voltammetry Differential pulse voltammetry Electrochemical immunosensor Electrochemical immunosensor Graphdiyne Graphdiyne Interleukin-17 Interleukin-17 MOFs MOFs UiO-66-NH2 UiO-66-NH2

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GB/T 7714 Li, Rui , Que, Wenzhong , Han, Haiyan et al. Sandwich-like electrochemical immunosensing of IL-17 based on silver nanoparticles/graphdiyne and methylene blue/UiO-66-NH2 [J]. | MICROCHIMICA ACTA , 2025 , 192 (5) .
MLA Li, Rui et al. "Sandwich-like electrochemical immunosensing of IL-17 based on silver nanoparticles/graphdiyne and methylene blue/UiO-66-NH2" . | MICROCHIMICA ACTA 192 . 5 (2025) .
APA Li, Rui , Que, Wenzhong , Han, Haiyan , Shi, Honghui , Wang, Rongfeng , Qiu, Bin . Sandwich-like electrochemical immunosensing of IL-17 based on silver nanoparticles/graphdiyne and methylene blue/UiO-66-NH2 . | MICROCHIMICA ACTA , 2025 , 192 (5) .
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Sandwich-like electrochemical immunosensing of IL-17 based on silver nanoparticles/graphdiyne and methylene blue/UiO-66-NH2 Scopus
期刊论文 | 2025 , 192 (5) | Microchimica Acta
Sandwich-like electrochemical immunosensing of IL-17 based on silver nanoparticles/graphdiyne and methylene blue/UiO-66-NH2 EI
期刊论文 | 2025 , 192 (5) | Microchimica Acta
CHA-based microarray with Cas12a universal readout for multiple microRNA detection SCIE
期刊论文 | 2025 , 192 (5) | MICROCHIMICA ACTA
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Abstract :

Hirschsprung's disease (HSCR), a congenital condition characterized by the absence of nerve cells in the intestinal wall, often requires early and accurate diagnosis for optimal patient outcomes. In this study, we developed a novel and ultrasensitive biosensing strategy for the detection of HSCR-related microRNAs (miRNAs) by integrating catalytic hairpin assembly (CHA) with CRISPR-Cas12a technology. A two-stage process consists of array recognition, and a universal readout is designed. In the first stage, target miRNAs are recognized and amplified on a solid-phase microarray, while in the second stage, the accumulated conversion chains which are not related to target sequences, activate Cas12a, leading to the cleavage of reporter DNA and the generation of a fluorescence signal spatially separated from the first stage. The proposed method was validated for the comprehensive detection of HSCR-related miRNAs and demonstrated high sensitivity and specificity. This work represents a significant advancement in miRNA diagnostics and holds potential for broader clinical applications.

Keyword :

Cas12a Cas12a Catalytic hairpin assembly Catalytic hairpin assembly Fluorescence spectrometry Fluorescence spectrometry Hirschsprung's disease Hirschsprung's disease MicroRNAs MicroRNAs

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GB/T 7714 Liu, Mingkun , Yan, Lei , Lin, Zhixiong et al. CHA-based microarray with Cas12a universal readout for multiple microRNA detection [J]. | MICROCHIMICA ACTA , 2025 , 192 (5) .
MLA Liu, Mingkun et al. "CHA-based microarray with Cas12a universal readout for multiple microRNA detection" . | MICROCHIMICA ACTA 192 . 5 (2025) .
APA Liu, Mingkun , Yan, Lei , Lin, Zhixiong , Wu, Dianming , Qiu, Bin , Weng, Shangeng . CHA-based microarray with Cas12a universal readout for multiple microRNA detection . | MICROCHIMICA ACTA , 2025 , 192 (5) .
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CHA-based microarray with Cas12a universal readout for multiple microRNA detection Scopus
期刊论文 | 2025 , 192 (5) | Microchimica Acta
CHA-based microarray with Cas12a universal readout for multiple microRNA detection EI
期刊论文 | 2025 , 192 (5) | Microchimica Acta
Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification SCIE
期刊论文 | 2025 , 97 (10) , 5828-5835 | ANALYTICAL CHEMISTRY
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Abstract :

Herein, we present an innovative electrochemiluminescence (ECL) biosensor for the ultrasensitive detection of N-nitrosodimethylamine (NDMA). The biosensor utilizes a triple signal amplification strategy, combining rolling circle amplification (RCA), CRISPR/Cas12a-driven hyperbranched rolling circle amplification (HRCA), and electrostatic repulsion with size exclusion effects from vertically ordered mesoporous silica film (VMSF)/indium tin oxide (ITO) on double-stranded DNA (dsDNA)-Ru(phen)3 2+ complexes. In this system, aptamers and circular DNA undergo RCA reactions, followed by the CRISPR/Cas12a-mediated HRCA process, producing abundant dsDNA. The electropositive ECL indicator, namely Ru(phen)3 2+, was subsequently adsorbed onto the electronegative dsDNA, forming dsDNA-Ru(phen)3 2+ complexes. These complexes are subjected to electrostatic repulsion and size exclusion by the VMSF-modified ITO electrode, resulting in a lower ECL intensity. Upon introducing NDMA, the aptamer preferentially binds to NDMA, thereby preventing the formation of long dsDNA. This process releases free Ru(phen)3 2+, which diffuses to the electrode surface through narrow mesoporous channels via electrostatic adsorption. Consequently, an enhanced and strong ECL signal is observed. The integration of VMSF enhances selectivity and sensitivity by excluding larger impurities and promoting the electrostatic repulsion of dsDNA-Ru(phen)3 2+ complexes near the electrode surface. Additionally, the CRISPR/Cas12a system eliminates the formation of primer dimers and reduces false positives through its unique cis- and trans-cleavage activities. The biosensor demonstrated excellent performance with a linear correlation between the ECL signal and NDMA concentration in the range spanning from 10 pg/mL to 10 mu g/mL, achieving a low limit of detection of 5.33 pg/mL. This platform offers a reliable and robust solution for detecting NDMA in complex matrices, making it a promising tool for environmental monitoring, public health, and safety applications.

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GB/T 7714 Zheng, Zhenjie , Qian, Zhuozhen , Huang, Da et al. Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification [J]. | ANALYTICAL CHEMISTRY , 2025 , 97 (10) : 5828-5835 .
MLA Zheng, Zhenjie et al. "Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification" . | ANALYTICAL CHEMISTRY 97 . 10 (2025) : 5828-5835 .
APA Zheng, Zhenjie , Qian, Zhuozhen , Huang, Da , Weng, Zuquan , Wang, Jian , Lin, Cuiying et al. Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification . | ANALYTICAL CHEMISTRY , 2025 , 97 (10) , 5828-5835 .
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Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification Scopus
期刊论文 | 2025 , 97 (10) , 5828-5835 | Analytical Chemistry
Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification Scopus
期刊论文 | 2025 | Analytical Chemistry
Ultrasensitive Homogeneous Electrochemiluminescence Biosensor for N-Nitrosodimethylamine Detection Based on Vertically-Ordered Mesoporous Silica Film-Modified Electrode and CRISPR/Cas12a-Driven HRCA with Triple Signal Amplification EI
期刊论文 | 2025 , 97 (10) , 5828-5835 | Analytical Chemistry
Portable Fluorescence Histamine Sensor for Assessing Freshness Utilizing Hydrogel Embedded with Dual-Ligand Europium Metal-Organic Framework SCIE
期刊论文 | 2025 , 10 (6) , 4580-4588 | ACS SENSORS
Abstract&Keyword Cite Version(2)

Abstract :

Histamine is a kind of biogenic amine released in spoiled food, which can serve as a key indicator for assessing the freshness of seafood. It is important to develop some efficient methods for histamine detection. In this work, a dual-emission europium-metal-organic framework (Eu-MOF) was designed and applied to design a ratiometric fluorescence sensing strategy for histamine detection. The MOF was synthesized in one step using two ligands: 5-boronoisophthalic acid (5-BOP) and 2-hydroxyterephthalic acid (BDC-OH). Eu3+ was sensitized by 5-BOP through the antenna effect and exhibited red emission at 618 nm, while the BDC-OH exhibited bright blue emission at 434 nm. The MOF displayed dual-emission responses to histamine, characterized by an increase in 434 nm and a concomitant decrease at 618 nm, so the ratio of I 618/I 434 decreased with a pronounced fluorescence color shift from purple to blue. I 618/I 434 exhibited a linear range with histamine from 0 to 200 mg/L with a detection limit of 0.17 mg/L (LOD = 3 sigma/KSV). The synthesized Eu-BOP/BDC-OH was integrated with carrageenan to fabricate a hydrogel composite film for portable detection of histamine, and the changing of color can be utilized for semiquantitative freshness detection. The proposed method provided a reliable and efficient portable strategy for histamine detection in seafood.

Keyword :

histamine histamine hydrogel composite film hydrogel composite film MOF MOF ratiometric fluorescence sensor ratiometric fluorescence sensor seafood freshness seafood freshness

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GB/T 7714 Cheng, Mengxin , Cao, Ying , Chen, Lifen et al. Portable Fluorescence Histamine Sensor for Assessing Freshness Utilizing Hydrogel Embedded with Dual-Ligand Europium Metal-Organic Framework [J]. | ACS SENSORS , 2025 , 10 (6) : 4580-4588 .
MLA Cheng, Mengxin et al. "Portable Fluorescence Histamine Sensor for Assessing Freshness Utilizing Hydrogel Embedded with Dual-Ligand Europium Metal-Organic Framework" . | ACS SENSORS 10 . 6 (2025) : 4580-4588 .
APA Cheng, Mengxin , Cao, Ying , Chen, Lifen , Lin, Yue , Luo, Fang , Guo, Longhua et al. Portable Fluorescence Histamine Sensor for Assessing Freshness Utilizing Hydrogel Embedded with Dual-Ligand Europium Metal-Organic Framework . | ACS SENSORS , 2025 , 10 (6) , 4580-4588 .
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Portable Fluorescence Histamine Sensor for Assessing Freshness Utilizing Hydrogel Embedded with Dual-Ligand Europium Metal-Organic Framework Scopus
期刊论文 | 2025 , 10 (6) , 4580-4588 | ACS Sensors
Portable Fluorescence Histamine Sensor for Assessing Freshness Utilizing Hydrogel Embedded with Dual-Ligand Europium Metal-Organic Framework EI
期刊论文 | 2025 , 10 (6) , 4580-4588 | ACS Sensors
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