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学者姓名：付凤富
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A simple method for one-step synthesis of aggregated gold nanoparticles (a-AuNPs) using single-layer carbon dots (s-CDs) as the capping agents has been proposed. The obtained a-AuNPs are mainly composed of several spherical AuNPs of 20-25 nm sized, which aggregate to form nanogaps of similar to 1 nm. Furthermore, the obtained aAuNPs produce a strong localized surface plasmon resonance (LSPR) absorption band centered at around 640 nm, which is quite close to the wavelength of the commonly used 633 nm laser in surface enhanced Raman scattering (SERS). Thus, under the irradiation of 633 nm laser, a lot of electromagnetic field "hot spots" are formed at around the nanogaps, and strong SERS activity is achieved. The obtained a-AuNPs are dropped on tinfoil wafers to fabricate SERS substrates, which show the advantages of high sensitivity, fast response, good repeatability and satisfactory stability. On the basis, a sensitive SERS sensor is developed to detect malachite green in aquaculture water, with a low detection limit of 1 x 10(-9) mol/L.
Keyword ：
Aggregated gold nanoparticles Aggregated gold nanoparticles Localized surface plasmon resonance Localized surface plasmon resonance Malachite green Malachite green Plasmonic hotspots Plasmonic hotspots Surface enhanced Raman scattering Surface enhanced Raman scattering
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| GB/T 7714 | Zhou, Yongcong , Zhang, Jingwen , Lai, Xiaojing et al. Aggregated gold nanoparticles rich in electromagnetic field "hotspots " for surface enhanced Raman scattering [J]. | TALANTA , 2025 , 282 . |
| MLA | Zhou, Yongcong et al. "Aggregated gold nanoparticles rich in electromagnetic field "hotspots " for surface enhanced Raman scattering" . | TALANTA 282 (2025) . |
| APA | Zhou, Yongcong , Zhang, Jingwen , Lai, Xiaojing , Chen, Yiquan , Fu, Fengfu , Lin, Zhenyu et al. Aggregated gold nanoparticles rich in electromagnetic field "hotspots " for surface enhanced Raman scattering . | TALANTA , 2025 , 282 . |
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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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A simple one-pot method is developed to prepare positively charged aggregated silver nanoparticles (a-AgNPs). The obtained a-AgNPs show strong localized surface plasmon resonance (LSPR) absorption, whose wavelength can be easily tuned to match the commonly used lasers in surface enhanced Raman scattering (SERS). Furthermore, the obtained a-AgNPs can be easily fabricated into paper-based SERS chips by filtering against a negatively charged filter membrane. On the basis, a convenient SERS sensor has been developed for the detection of thiram using a 785 nm handheld Raman spectrometer.
Keyword ：
Aggregated AgNPs Aggregated AgNPs Paper-based chips Paper-based chips Positively charged Positively charged SERS SERS Thiram Thiram
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| GB/T 7714 | Lin, Wei , Liu, Zesong , Zhang, Jingwen et al. Paper-based SERS chips for the rapid detection of thiram [J]. | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2025 , 332 . |
| MLA | Lin, Wei et al. "Paper-based SERS chips for the rapid detection of thiram" . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 332 (2025) . |
| APA | Lin, Wei , Liu, Zesong , Zhang, Jingwen , Xu, Jinhua , Fu, Fengfu , Lin, Zhenyu et al. Paper-based SERS chips for the rapid detection of thiram . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2025 , 332 . |
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The current surface-enhanced Raman scattering (SERS) substrates typically feature a single energy level, posing challenges in coordinating electromagnetic enhancement (EM) and chemical enhancement (CM), thereby limiting the sensitive detection of numerous crucial target molecules. In this study, novel aggregated nanorings (a-NRs) hybridizing Ag, Au and AgCl are constructed as SERS substrates. On one hand, the obtained a-NRs exhibit robust localized surface plasmon resonance absorption, whose wavelength can be tuned to match three commonly used laser wavelengths (532, 633 and 785 nm) to gain strong EM effect. On the other hand, these materials possess the Fermi levels of Au nanoparticles and Au/Ag alloy, in addition to the valence band and conduction band of AgCl. The abundant energy levels of the obtained a-NRs facilitate increased charge transfer opportunities for molecules, leading to a strong CM effect. Therefore, the obtained a-NRs show ultra-high SERS sensitivity towards numerous molecules. Moreover, the unique chemical composition makes the obtained a-NRs have good long-term stability in terms of SERS activity. Besides providing high-performance SERS substrates, the valuable experience for coordinating EM and CM to construct highly active SERS substrate demonstrated in this work are expected to significantly advance the application of SERS.
Keyword ：
Chemical enhancement Chemical enhancement Electromagnetic enhancement Electromagnetic enhancement Energy-level rich Energy-level rich Gold Gold SERS SERS Silver Silver Silver chloride Silver chloride
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| GB/T 7714 | Hu, Rongjing , Fu, Shilan , Zhou, Yongcong et al. Energy-level rich nanorings hybridizing Ag, Au and AgCl as high-performance SERS substrate for numerous molecules [J]. | TALANTA , 2025 , 286 . |
| MLA | Hu, Rongjing et al. "Energy-level rich nanorings hybridizing Ag, Au and AgCl as high-performance SERS substrate for numerous molecules" . | TALANTA 286 (2025) . |
| APA | Hu, Rongjing , Fu, Shilan , Zhou, Yongcong , Lin, Zhenyu , Fu, Fengfu , Dong, Yongqiang . Energy-level rich nanorings hybridizing Ag, Au and AgCl as high-performance SERS substrate for numerous molecules . | TALANTA , 2025 , 286 . |
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Seafood consumption is the major source of total Hg (tHg) and methyl mercury (MeHg) for humans. Lack of broad-representative bio-accessibility of mercury species makes accurate assessment on health risk of seafood's mercury impossible. Herein, the concentrations and in vitro bio-accessibilities of mercury species in 93 seafood samples with 71 different species were extensively investigated. Results indicated that all shellfish and fish samples, and most seaweed samples contained both Hg2+ and MeHg, while some seaweed samples contained only Hg2+. The concentrations of mercury species varied depending on the differences in species/individuals of seafood and sampling regions. MeHg in seafood can be partly de-methylated into Hg2+ during gastrointestinal digestion, which reduced the toxicity of mercury in seafood. The mean demethylation rate of MeHg varied as follows: seaweeds (similar to 62.1 %) > shellfishes/shrimps (similar to 19.7 %) > fishes (similar to 9.2 %). The mean bio-accessibility of Hg2+ and tHg varied as follows: seaweeds (similar to 97.7 % and similar to 90.1 %) > shellfishes/shrimps (similar to 65.1 % and similar to 67.9 %) approximate to fishes (similar to 65.1 % and similar to 66.7 %), while that of MeHg varied as follows: fishes (similar to 57.7 %) > shellfishes/shrimps (50.8 %) > seaweeds (similar to 11.6 %). The simulated calculation of target hazard quotient (THQ) revealed that the health risk of seafood's mercury may be accurately assessed using tHg, not mercury species, even without considering bio-accessibility. This offers a simple but protective approach for assessing the health risk of seafood's mercury. Results of this study provide the potential broad-representative bio-accessibilities of mercury species existing in various kinds of seafood and novel insights for scientifically assessing the health risk of seafood's mercury and revising the mercury limitation in seafood.
Keyword ：
Bioavailability Bioavailability Marine organism Marine organism Mercury Mercury Risk assessment Risk assessment Seafood Seafood
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| GB/T 7714 | Sun, Chaochen , Yin, Miaomiao , Peng, Ying et al. The characteristic and bio-accessibility evaluation of mercury species in various kinds of seafood collected from Fujian of China for mercury risk assessment [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2025 , 482 . |
| MLA | Sun, Chaochen et al. "The characteristic and bio-accessibility evaluation of mercury species in various kinds of seafood collected from Fujian of China for mercury risk assessment" . | JOURNAL OF HAZARDOUS MATERIALS 482 (2025) . |
| APA | Sun, Chaochen , Yin, Miaomiao , Peng, Ying , Lin, Chen , Wu, Yongning , Fu, Fengfu et al. The characteristic and bio-accessibility evaluation of mercury species in various kinds of seafood collected from Fujian of China for mercury risk assessment . | JOURNAL OF HAZARDOUS MATERIALS , 2025 , 482 . |
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A simple method is developed for the direct synthesis of aggregated silver nanoparticles (a-AgNPs), which show strong and wavelength-tunable localized surface plasmon resonance (LSPR). Three a-AgNPs (532-a-AgNPs, 633-a-AgNPs and 787-a-AgNPs) exhibiting the maximum LSPR wavelength coinciding well with those of lasers commonly used in SERS detection (532, 633 and 785 nm) are obtained. Thus, the three a-AgNPs possess abundant plasmonic hotspots under the irradiation of corresponding laser. Moreover, the three a-AgNPs show robust stability in water, and can be developed into liquid substrates directly for SERS determination. All the three substrates (532-sub, 633-sub, and 787-sub) show excellent SERS activity to 4-mercaptobenzoic acid (4-MBA) due to the synergistic effect of strong electromagnetic enhancement (EM) and chemical enhancement (CM) effects. The obtained 787-sub is further applied for the determination of thiram in juices. The low detection limit of 10 ppb and outstanding recoveries of 91.75–109.92 % suggest substantially the reliability and practicality of the developed SERS substrates in food safety detection. © 2025 Elsevier B.V.
Keyword ：
Laser safety Laser safety Metal nanoparticles Metal nanoparticles Silver nanoparticles Silver nanoparticles Surface plasmon resonance Surface plasmon resonance
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| GB/T 7714 | Hu, Rongjing , Zeng, Chenyi , Zhang, Jingwen et al. Stable aggregated silver nanoparticle in water with strong and wavelength-tunable localized surface plasmon resonance for liquid-state SERS substrates [J]. | Journal of Molecular Liquids , 2025 , 424 . |
| MLA | Hu, Rongjing et al. "Stable aggregated silver nanoparticle in water with strong and wavelength-tunable localized surface plasmon resonance for liquid-state SERS substrates" . | Journal of Molecular Liquids 424 (2025) . |
| APA | Hu, Rongjing , Zeng, Chenyi , Zhang, Jingwen , Xu, Jinhua , Pan, Cheng , Lin, Zhenyu et al. Stable aggregated silver nanoparticle in water with strong and wavelength-tunable localized surface plasmon resonance for liquid-state SERS substrates . | Journal of Molecular Liquids , 2025 , 424 . |
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The contamination of micro-plastics (MPs)/nano-plastics (NPs) in environment poses a global concern, necessitating a scientific evaluation of their potential risks to ecosystems and organisms. We herein investigated the adsorption kinetics of different mercury species including inorganic mercury (Hg2+), methylmercury (MeHg) and ethylmercury (EtHg) on three different MPs, such as polyethylene MPs (PE MPs), polypropylene MPs (PP MPs) and polystyrene MPs (PS MPs) in micro-polluted water in detail, and further evaluated the individual and combined cytotoxicity of polystyrene NPs (PS NPs)/polypropylene NPs (PP NPs) and different mercury species. The results indicated that EtHg undergoes demethylation partly to form Hg2+ during the adsorption process on PP MPs, and the adsorption kinetics of Hg2+, MeHg and EtHg on three MPs fitted with pseudo-first-order (PFO) model in initial stage and simultaneously fitted with pseudo-second-order (PSO) model during whole adsorption process. This suggested that adsorption of mercury species on three MPs we driven mainly by physical process in initial stage and by chemical process during whole absorption process. In natural micro-polluted water, the equilibrium adsorption capacities (Qe) of Hg2+ on three MPs (156.3–270.3 ng/g) are much higher than that of MeHg (5.562–78.13 ng/g) and EtHg (7.831–70.42 ng/g). Cytotoxicity experiments revealed that PP NPs and PS NPs themselves have little cytotoxicity, but the presence of them can enhance the cytotoxicity of mercury species, showing NPs size-depended and mercury species-depended synergistic toxic effect. The findings of this study provided valuable insights for scientifically evaluating the potential risk of MPs/NPs to ecosystems and organisms. © 2025 Elsevier B.V.
Keyword ：
Marine pollution Marine pollution Microplastic Microplastic Risk assessment Risk assessment River pollution River pollution Water analysis Water analysis
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| GB/T 7714 | Wu, Siqi , Yang, Chen , Xu, Haochen et al. Adsorption kinetics of different mercury species on three kinds of micro-/nano-plastics in micro-polluted aquatic environments and their combined toxicity [J]. | Science of the Total Environment , 2025 , 981 . |
| MLA | Wu, Siqi et al. "Adsorption kinetics of different mercury species on three kinds of micro-/nano-plastics in micro-polluted aquatic environments and their combined toxicity" . | Science of the Total Environment 981 (2025) . |
| APA | Wu, Siqi , Yang, Chen , Xu, Haochen , Zhu, Yiwei , Fu, FengFu , Lin, Yue . Adsorption kinetics of different mercury species on three kinds of micro-/nano-plastics in micro-polluted aquatic environments and their combined toxicity . | Science of the Total Environment , 2025 , 981 . |
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Selenium (Se) in paddy rice is one of the significant sources of human Se nutrition. However, the effect of arsenic (As) pollution in soil on the translocation of Se species in rice plants is unclear. In this research, a pot experiment was designed to examine the effect of the addition of 50 mg As/kg soil as arsenite or arsenate on the migration of Se species from soil to indica Minghui 63 and Luyoumingzhan. The results showed that the antagonism between inorganic As and Se was closely related to the rice cultivar and Se oxidation state in soil. Relative to the standalone selenate treatment, arsenite significantly ( p < 0.05) decreased the accumulation of selenocystine, selenomethionine and selenate in the roots, stems, sheaths, leaves, brans and kemels of both cultivars by 21.4%-100.0%, 40.0%-100.0%, 41.0%-100%, 5.4%96.3%, 11.3%-100.0% and 26.2%-39.7% respectively, except for selenocystine in the kemels of indica Minghui 63 and selenomethionine in the leaves of indica Minghui 63 and the stems of indica Luyoumingzhan. Arsenate also decreased ( p < 0.05) the accumulation of selenocystine, selenomethionine and selenate in the roots, stems, brans and kernels of both cultivars by 34.9%-100.0%, 30.2%-100.0%, 11.3%-100.0% and 5.6%-39.6% respectively, except for selenate in the stems of indica Minghui 63. However, relative to the standalone selenite treatment, arsenite and arsenate decreased ( p < 0.05) the accumulation of selenocystine, selenomethionine and selenite only in the roots of indica Minghui 63 by 45.5%-100.0%. Our results suggested that arsenite and arsenate had better antagonism toward Se species in selenate-added soil than that in selenite-added soil; moreover, arsenite had a higher inhibiting effect on the accumulation of Se species than arsenate. (c) 2024 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Keyword ：
Antagonistic effect Antagonistic effect Inorganic arsenic Inorganic arsenic Rice( Oryza sativa L.) Rice( Oryza sativa L.) Selenium species Selenium species Translocation Translocation
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| GB/T 7714 | Pokhrel, Ganga Raj , Wang, Kaiteng , Ying, Kaiyang et al. Effect of inorganic arsenic in paddy soil on the migration and transformation of selenium species in rice plants [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2024 , 143 : 35-46 . |
| MLA | Pokhrel, Ganga Raj et al. "Effect of inorganic arsenic in paddy soil on the migration and transformation of selenium species in rice plants" . | JOURNAL OF ENVIRONMENTAL SCIENCES 143 (2024) : 35-46 . |
| APA | Pokhrel, Ganga Raj , Wang, Kaiteng , Ying, Kaiyang , Wu, Yongchen , Wang, Ze , Zhu, Xi et al. Effect of inorganic arsenic in paddy soil on the migration and transformation of selenium species in rice plants . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2024 , 143 , 35-46 . |
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Quinolones, a widely used class of antibiotics, present significant environmental and health concerns if they excessively remain in the environment and in food. Aptamers specific to quinolones can be applied as bioreceptors for the detection of quinolone residues in the environment and food. The quinolone family contains dozens of different individuals that share the same core structure coupled with various substituents at six different positions. The diversity and complexity of the substitution sites make it a challenge to choose a set of representative molecules that encompass all the desired sites and preserve the core molecular framework for the screening of quinolone-specific aptamers via systematic evolution of ligands by exponential enrichment (SELEX). To address this challenge, we introduce a novel parallel-series strategy guided by Liebig's law for isolating quinolone-specific cross-reactive aptamers by using the library-immobilized SELEX method. Through this approach, we successfully identified 5 aptamers (Apt.AQ01-Apt.AQ05) with high binding affinity and excellent specificity to 24 different quinolone individuals. Among them, Apt.AQ03 showcased optimal performance with affinities ranging from 0.14 to 1.07 mu M across the comprehensive set of 24 quinolones, exhibiting excellent specificity against nontarget interferents. The binding performance of Apt.AQ03 was further characterized with microscale thermophoresis, circular dichroism spectra, and an exonuclease digestion assay. By using Apt.AQ03 as a bioreceptor, a fluorescence resonance energy transfer (FRET) aptasensor was developed for the detection of 24 quinolones in milk, achieving a remarkable detection limit of 14.5-21.8 ng/mL. This work not only establishes a robust and effective strategy for selecting cross-reactive aptamers applicable to other small-molecule families but also provides high-quality aptamers for developing various high-throughput and reliable methods for the detection of multiple quinolone residues in food.
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| GB/T 7714 | Yang, Weijuan , Luo, Dongdong , Zheng, Siyu et al. Screening of Cross-Reactive Aptamers for the Detection of 24 Quinolones by Using a Liebig's Law-Guided Parallel-Series Strategy [J]. | ANALYTICAL CHEMISTRY , 2024 , 96 (21) : 8576-8585 . |
| MLA | Yang, Weijuan et al. "Screening of Cross-Reactive Aptamers for the Detection of 24 Quinolones by Using a Liebig's Law-Guided Parallel-Series Strategy" . | ANALYTICAL CHEMISTRY 96 . 21 (2024) : 8576-8585 . |
| APA | Yang, Weijuan , Luo, Dongdong , Zheng, Siyu , Zhang, Yiru , Wang, Zongwen , Fu, Fengfu . Screening of Cross-Reactive Aptamers for the Detection of 24 Quinolones by Using a Liebig's Law-Guided Parallel-Series Strategy . | ANALYTICAL CHEMISTRY , 2024 , 96 (21) , 8576-8585 . |
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Photodynamic therapy is an emerging tumor therapy that kills tumor cells by activating reactive oxygen species (ROS) produced by photosensitizers. Mitochondria, as an important organelle, are the main generator of cellular ROS. Therefore, the development of photosensitizers capable of targeting mitochondria could significantly enhance the efficacy of photodynamic therapy. In this study, two novel ruthenium(ii) complexes, Ru-1 and Ru-2, were designed and synthesized, both of which were functionalized with alpha,beta-unsaturated ketones for sensing of glutathione (GSH). The crystal structures of the two complexes were determined and they exhibited good recognition of GSH by off-on luminescence signals. The complex Ru-2 containing aromatic naphthalene can enter the cells and react with GSH to generate a strong luminescence signal that can be used to monitor intracellular GSH levels through imaging. Ru-2 also has an excellent mitochondrial localization ability with a Pearson's coefficient of 0.95, which demonstrates that it can efficiently target the mitochondria of tumor cells to enhance the effectiveness of photodynamic therapy as a photosensitizer.
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| GB/T 7714 | Zhang, Wanqing , Chen, Weibin , Fu, Fengfu et al. Mitochondria-targeted ruthenium(ii) complexes for photodynamic therapy and GSH detection in living cells [J]. | DALTON TRANSACTIONS , 2024 , 53 (13) : 5957-5965 . |
| MLA | Zhang, Wanqing et al. "Mitochondria-targeted ruthenium(ii) complexes for photodynamic therapy and GSH detection in living cells" . | DALTON TRANSACTIONS 53 . 13 (2024) : 5957-5965 . |
| APA | Zhang, Wanqing , Chen, Weibin , Fu, Fengfu , Li, Mei-Jin . Mitochondria-targeted ruthenium(ii) complexes for photodynamic therapy and GSH detection in living cells . | DALTON TRANSACTIONS , 2024 , 53 (13) , 5957-5965 . |
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