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学者姓名：唐点平
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Abstract ：
The volumetric density of the metal atomic site is decisive to the operating efficiency of the photosynthetic nanoreactor, yet its rational design and synthesis remain a grand challenge. Herein, we report a shell-regulating approach to enhance the volumetric density of Co atomic sites onto/into multishell ZnxCd1-xS for greatly improving CO2 photoreduction activity. We first establish a quantitative relation between the number of shell layers, specific surface areas, and volumetric density of atomic sites on multishell ZnxCd1-xS and conclude a positive relation between photosynthetic performance and the number of shell layers. The triple-shell ZnxCd1-xS-Co-1 achieves the highest CO yield rate of 7629.7 mu mol g(-1) h(-1), superior to those of the double-shell ZnxCd1-xS-Co-1 (5882.2 mu mol g(-1) h(-1)) and single-shell ZnxCd1-xS-Co-1 (4724.2 mu mol g(-1) h(-1)). Density functional theory calculations suggest that high-density Co atomic sites can promote the mobility of photogenerated electrons and enhance the adsorption of Co(bpy)(3)(2+) to increase CO2 activation (CO2 -> CO2* -> COOH* -> CO* -> CO) via the S-Co-bpy interaction, thereby enhancing the efficiency of photocatalytic CO2 reduction.
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| GB/T 7714 | Zeng, Ruijin , Liu, Tongyu , Qiu, Minghao et al. High-Volumetric Density Atomic Cobalt on Multishell Zn x Cd1-x S Boosts Photocatalytic CO2 Reduction [J]. | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2024 , 146 (14) : 9721-9727 . |
| MLA | Zeng, Ruijin et al. "High-Volumetric Density Atomic Cobalt on Multishell Zn x Cd1-x S Boosts Photocatalytic CO2 Reduction" . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 146 . 14 (2024) : 9721-9727 . |
| APA | Zeng, Ruijin , Liu, Tongyu , Qiu, Minghao , Tan, Hao , Gu, Yu , Ye, Na et al. High-Volumetric Density Atomic Cobalt on Multishell Zn x Cd1-x S Boosts Photocatalytic CO2 Reduction . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2024 , 146 (14) , 9721-9727 . |
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A photocurrent enhancing photoelectrochemical (PEC) immunosensor was developed for chloramphenicol (CAP) detection based on cation exchange reaction. The efficient split-type PEC immunosensor combined with controlled-release strategy was established using the ZnIn2S4/TiO2/Ti3C2 MXene (ZIS/T/M) composite as the photoactive material and CuO as the signal response probe. In the presence of target CAP, CuO-labeled CAP antibody (CuO-mAb) was introduced onto the microplate via a competitive-type immunoassay. Under acidic conditions, a large amount of Cu2+ released from CuO-mAb, which triggered a cation exchange reaction with the Zn2+ in ZIS/T/M-modified photoelectrode to generate CuxS, resulting in enhancing the photocurrent. As a result, the quantitative detection of CAP was achieved by detecting the photocurrent change. Under optimized conditions, the linear range of the sensor was 1 pg/mL to 50 ng/mL, and the detection limit was 0.24 pg/mL. The excellent PEC behavior of ZIS/T/M composite could be attributed to the fact that heterojunction formation improved the migration and separation of the photocarrier. Additionally, by virtue of the photocurrent-enhancing strategy via cation exchange reaction and the controlled releasing signal amplification method of ion, the PEC immunosensor has high sensitivity and satisfactory accuracy, offering great potential applications in the determination of CAP.
Keyword ：
Cation exchange reaction Cation exchange reaction Controlled-release strategy Controlled-release strategy Photoelectrochemical Photoelectrochemical ZnIn2S4/TiO2/Ti3C2 Mxene ZnIn2S4/TiO2/Ti3C2 Mxene
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| GB/T 7714 | Zheng, Mengqin , Lin, Huizi , Li, Suhua et al. Photoelectrochemical immunosensor for chloramphenicol detection based on cation exchange reaction-mediacted photocurrent enhancement of ZnIn2S4/TiO2/Ti3C2 MXene coupled with controlled-release strategy [J]. | MICROCHIMICA ACTA , 2024 , 191 (12) . |
| MLA | Zheng, Mengqin et al. "Photoelectrochemical immunosensor for chloramphenicol detection based on cation exchange reaction-mediacted photocurrent enhancement of ZnIn2S4/TiO2/Ti3C2 MXene coupled with controlled-release strategy" . | MICROCHIMICA ACTA 191 . 12 (2024) . |
| APA | Zheng, Mengqin , Lin, Huizi , Li, Suhua , Huang, Shuoying , Huang, Jiangwei , Lai, Wenqiang et al. Photoelectrochemical immunosensor for chloramphenicol detection based on cation exchange reaction-mediacted photocurrent enhancement of ZnIn2S4/TiO2/Ti3C2 MXene coupled with controlled-release strategy . | MICROCHIMICA ACTA , 2024 , 191 (12) . |
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An innovative signal-transduction tag with glucose-doped calcium carbonate nanospheres was utilized as the label of a secondary antibody to design a nano-labelled immunosorbent assay (NLISA) of a carcinoembryonic antigen. The signal was achieved on a personal glucometer via the released glucose molecules from the nanospheres under acidic conditions after formation of the sandwiched immune complexes. The enzyme and the spectrometer in the conventional enzyme-linked immunosorbent assay (ELISA) were replaced by a glucose-doped calcium carbonate nanosphere and a glucometer.
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| GB/T 7714 | Chen, Yue , Li, Bin , Ge, Lilin et al. Glucose-doped calcium carbonate nanospheres: a new signal-transduction tag for nano-labelled immunosorbent assay (NLISA) [J]. | NEW JOURNAL OF CHEMISTRY , 2024 , 48 (48) : 20246-20250 . |
| MLA | Chen, Yue et al. "Glucose-doped calcium carbonate nanospheres: a new signal-transduction tag for nano-labelled immunosorbent assay (NLISA)" . | NEW JOURNAL OF CHEMISTRY 48 . 48 (2024) : 20246-20250 . |
| APA | Chen, Yue , Li, Bin , Ge, Lilin , Cai, Fan , Tang, Dianping , Yao, Lin . Glucose-doped calcium carbonate nanospheres: a new signal-transduction tag for nano-labelled immunosorbent assay (NLISA) . | NEW JOURNAL OF CHEMISTRY , 2024 , 48 (48) , 20246-20250 . |
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Signal amplification and noise reduction are very crucial for the sensitive determination of disease-related biomarkers. The development of rapid and laborious testing is urgently required due to extended incubation time and high mortality. Herein, we developed a Ce-based mesoporous metal-organic framework-based multi-enzyme encapsulation device for the realization of enzyme-linked immunosorbent assay (ELISA) for the dengue virus (DENV). Briefly, a UiO-66(Ce) framework structure with uniform mesopores was synthesized by a one-pot method, which allowed efficient encapsulation of natural enzymes with an encapsulation efficiency of 700%. The developed multi-enzyme reaction probes were able to maintain more than 90% of catalytic activity stable at room temperature for 60 days while ensuring efficient enzyme immobilization. Sensitive evaluation of DENV was achieved by encapsulating glucose oxidase and horseradish peroxidase, combined with the formation of an immune sandwich in the presence of DENV. The developed sensor enabled flexible detection of recombinant dengue virus serotype 2 NS1 protein (DENV2-NS1) from 0.05 to 100 ng mL-1, with a low limit of detection of 39.7 pg mL-1. In addition, there were no significant differences in the test results of the samples obtained through the developed multi-enzyme probes when compared to commercially available ELISA kits. This work provides new horizons for the development of efficient enzyme encapsulation systems.
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| GB/T 7714 | Lin, Luanfeng , Fan, Xiangqun , Yan, Yinmei et al. In situ amplified colorimetric immunoassay coupled with a dual-enzyme-functionalized UiO-66(Ce) framework for quantitative detection of the dengue virus [J]. | SENSORS & DIAGNOSTICS , 2024 , 4 (1) : 75-81 . |
| MLA | Lin, Luanfeng et al. "In situ amplified colorimetric immunoassay coupled with a dual-enzyme-functionalized UiO-66(Ce) framework for quantitative detection of the dengue virus" . | SENSORS & DIAGNOSTICS 4 . 1 (2024) : 75-81 . |
| APA | Lin, Luanfeng , Fan, Xiangqun , Yan, Yinmei , Lin, Ting , Han, Xiao , Tang, Dianping et al. In situ amplified colorimetric immunoassay coupled with a dual-enzyme-functionalized UiO-66(Ce) framework for quantitative detection of the dengue virus . | SENSORS & DIAGNOSTICS , 2024 , 4 (1) , 75-81 . |
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A colorimetric and photothermal dual-mode detection method based on beta-NiOOH nanozyme-3,3 ',5,5 '-tetramethylbenzidine (TMB) system was established for chloramphenicol (CAP) content in fruit juice. Herein, a novel nanozyme beta-NiOOH with high oxidase-like activity can directly and effectively catalyze the oxidation of colorless TMB to blue color TMB oxidation (oxTMB) without the presence of H2O2. Using a competition-type immunoassay, the oxTMB can induce not only an increase in the absorption peak intensity but also a photothermal effect under 808 nm laser irradiation, achieving dual-mode detection of CAP. The increase of absorbance at 652 nm and the increase of temperature generated by photothermal conversion are linearly correlated with the CAP content. Under the optimal conditions, the dual-mode detection shows a low limit of 0.0056 ng mL-1 for the colorimetric method, and 0.0016 ng mL-1 for the photothermal method. Moreover, the developed colorimetric and photothermal dual-mode immunobiosensor was successfully used to detect CAP in fruit juice with an acceptable recovery rate between 93.387% and 118.514%. This method has good repeatability, specificity, and accuracy, and provides an efficient approach for real-time detection of CAP in food safety analysis and detection platforms. A colorimetric and photothermal dual-mode detection method based on beta-NiOOH nanozyme-3,3 ',5,5 '-tetramethylbenzidine system was established for chloramphenicol content in fruit juice.
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| GB/T 7714 | Lian, Yuxing , Zheng, Mengqin , Li, Suhua et al. A colorimetric and photothermal dual-mode immunobiosensor for chloramphenicol based on the β-NiOOH nanozyme-3,3′,5,5′-tetramethylbenzidine system [J]. | NEW JOURNAL OF CHEMISTRY , 2024 , 48 (16) : 7340-7346 . |
| MLA | Lian, Yuxing et al. "A colorimetric and photothermal dual-mode immunobiosensor for chloramphenicol based on the β-NiOOH nanozyme-3,3′,5,5′-tetramethylbenzidine system" . | NEW JOURNAL OF CHEMISTRY 48 . 16 (2024) : 7340-7346 . |
| APA | Lian, Yuxing , Zheng, Mengqin , Li, Suhua , Lai, Wenqiang , Tang, Dianping , Lin, Youxiu . A colorimetric and photothermal dual-mode immunobiosensor for chloramphenicol based on the β-NiOOH nanozyme-3,3′,5,5′-tetramethylbenzidine system . | NEW JOURNAL OF CHEMISTRY , 2024 , 48 (16) , 7340-7346 . |
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Herein, we developed a platinum-copper nano-enzyme-linked immunosorbent assay (NLISA) based split diagnostic platform for the ultrasensitive detection of cardiac troponin I (cTnI). The PtCu nanozyme synthesized by one-pot synthesis exhibited ultra-high peroxidase-like activity (35.17 U mg−1), which was about 4.5 times higher than that of the unmodified Pt nanozyme (8.83 U mg−1). Due to the efficient peroxidase-like activity of the copper-platinum complexed nanozyme, transduction and sequential amplification of cTnI biological signals were achieved in combination with a liposome-embedded amplification strategy. The encapsulation efficiency was calculated by introducing a liposomal bilayer model, which showed that the introduction of a single liposomal molecule could amplify the signal up to 870-fold, thus promising a high sensitivity test. Notably, the dynamic response of cTnI was in the range of 0.1–5000 pg mL−1 with an ultra-low detection limit (0.048 pg mL−1). The developed NLISA analysis system provides a new way to discover efficient and sensitive alternatives to ELISA kits, which can meet the practical needs of community healthcare testing conditions and rapid testing in hospitals. © 2024 Elsevier B.V.
Keyword ：
Cardiology Cardiology Copper compounds Copper compounds Immunology Immunology Platinum compounds Platinum compounds
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| GB/T 7714 | Lou, Fangming , Zhang, Han , Wang, Yanwen et al. Liposome-embedded PtCu nanozymes for improved immunoassay of accurate myocardial infarction [J]. | Talanta , 2024 , 279 . |
| MLA | Lou, Fangming et al. "Liposome-embedded PtCu nanozymes for improved immunoassay of accurate myocardial infarction" . | Talanta 279 (2024) . |
| APA | Lou, Fangming , Zhang, Han , Wang, Yanwen , Wang, Shaojie , Li, Qunfang , Tang, Dianping . Liposome-embedded PtCu nanozymes for improved immunoassay of accurate myocardial infarction . | Talanta , 2024 , 279 . |
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Early detection of cancer has a profound impact on patient survival and treatment outcomes considering high treatment success rates and reduced treatment complexity. Here, we developed a portable photoelectrochemical (PEC) immune platform for sensitive testing of alpha-fetoprotein (AFP) based on Pt nanocluster (Pt NCs) loaded defective -state g-C3N4 photon -electron transducers. The broad forbidden band structure of g-C3N4 was optimized by the nitrogen doping strategy and additional homogeneous porous structure was introduced to further enhance the photon utilization. In addition, the in -situ growth of Pt NCs provided efficient electron transfer catalytic sites for sacrificial agents, which were used to further improve the sensitivity of the sensor. Efficient photoelectric conversion under a hand-held flashlight was determined by the geometry of the transducer and the energy band design, and the portable design of the PEC sensor was realized. The developed sensing platform exhibited a wide linear response range (0.1-50 ng mL-1) and low limit of detection (0.043 ng mL-1) for AFP under optimum conditions. This work provides a new idea for designing portable PEC biosensing platforms to meet the current mainstream POC testing needs.
Keyword ：
Alpha-fetoprotein Alpha-fetoprotein Micro-electro-mechanical-system Micro-electro-mechanical-system Photoelectrochemical immunoassay Photoelectrochemical immunoassay Platinum nanoclusters Platinum nanoclusters
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| GB/T 7714 | Lou, Fangming , Wang, Shaojie , Han, Bo et al. Portable photoelectrochemical immunoassay with micro-electro-mechanical-system for alpha-fetoprotein in hepatocellular carcinoma [J]. | ANALYTICA CHIMICA ACTA , 2024 , 1298 . |
| MLA | Lou, Fangming et al. "Portable photoelectrochemical immunoassay with micro-electro-mechanical-system for alpha-fetoprotein in hepatocellular carcinoma" . | ANALYTICA CHIMICA ACTA 1298 (2024) . |
| APA | Lou, Fangming , Wang, Shaojie , Han, Bo , Li, Qunfang , Tang, Dianping . Portable photoelectrochemical immunoassay with micro-electro-mechanical-system for alpha-fetoprotein in hepatocellular carcinoma . | ANALYTICA CHIMICA ACTA , 2024 , 1298 . |
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Different from prevalent approaches such as immunological recognition, complementary base pairing, or enzymatic regulation in current photoelectrochemical (PEC) sensing, this study reported an excited-state intramolecular proton transfer (ESIPT)-driven photon-gating PEC sensor. The sensor is developed for the detection of CO-releasing molecule-3 (CORM-3) by modifying an ESIPT-switched organic fluorescent probe molecule (NDAA) onto the surface of a p-type semiconductor (BiOI). The NDAA can be excited and exhibit strong green fluorescence after responding with CORM-3, resulting in an electrode-interface photon competitive absorption effect due to the switch on ESIPT and considerably reducing the photocurrent signal. The experimental results revealed that the as-developed PEC sensor achieved good analytical performance with high selectivity and sensitivity, with a linear range of 0.01-1000 mu M and a lower detection limit of 6.5 nM. This work demonstrates the great potential of the organic fluorescent probe molecule family in advancing PEC analysis. It is anticipated that our findings will stimulate the creation of diverse functional probes possessing distinctive characteristics for inventive PEC sensors.
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| GB/T 7714 | Gao, Yuan , Tang, Juan , Zhou, Qian et al. Excited-State Intramolecular Proton Transfer-Driven Photon-Gating for Photoelectrochemical Sensing of CO-Releasing Molecule-3 [J]. | ANALYTICAL CHEMISTRY , 2024 , 96 (12) : 5014-5021 . |
| MLA | Gao, Yuan et al. "Excited-State Intramolecular Proton Transfer-Driven Photon-Gating for Photoelectrochemical Sensing of CO-Releasing Molecule-3" . | ANALYTICAL CHEMISTRY 96 . 12 (2024) : 5014-5021 . |
| APA | Gao, Yuan , Tang, Juan , Zhou, Qian , Yu, Zhichao , Wu, Di , Tang, Dianping . Excited-State Intramolecular Proton Transfer-Driven Photon-Gating for Photoelectrochemical Sensing of CO-Releasing Molecule-3 . | ANALYTICAL CHEMISTRY , 2024 , 96 (12) , 5014-5021 . |
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Pressure and temperature, as common physical parameters, are important for monitoring human health. In contrast, single-mode monitoring is prone to causing experimental errors. Herein, we innovatively designed a dual-mode flexible sensing platform based on a platinum/zinc-meso-tetrakis(4-carboxyphenyl)porphyrin (Pt/Zn-TCPP) nanozyme for the quantitative monitoring of carcinoembryonic antigen (CEA) in biological fluids with pressure and temperature readouts. The Pt/Zn-TCPP nanozyme with catalytic and photothermal efficiencies was synthesized by means of integrating photosensitizers into porous materials. The flexible sensing system after the antigen-antibody reaction recognized the pressure using a flexible skin-like pressure sensor with a digital multimeter readout, whereas the temperature was acquired via the photoheat conversion system of the Pt/Zn-TCPP nanozyme under 808 nm near-infrared (NIR) irradiation using a portable NIR imaging camera on a smartphone. Meanwhile, the dual-mode flexible sensing system was carried out on a homemade three-dimensional (3D)-printed device. Results revealed that the developed dual-mode immunosensing platform could exhibit good pressure and temperature responses within the dynamic range of 0.5-100 ng mL-1 CEA with the detection limits of 0.24 and 0.13 ng mL-1, respectively. In addition, the pressure and temperature were sensed simultaneously without crosstalk interference. Importantly, the dual-mode flexible immunosensing system can effectively avoid false alarms during the measurement, thus providing great potential for simple and low-cost development for point-of-care testing.
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| GB/T 7714 | Wu, Di , Tang, Juan , Yu, Zhichao et al. Pt/Zn-TCPP Nanozyme-Based Flexible Immunoassay for Dual-Mode Pressure-Temperature Monitoring of Low-Abundance Proteins [J]. | ANALYTICAL CHEMISTRY , 2024 , 96 (21) : 8740-8746 . |
| MLA | Wu, Di et al. "Pt/Zn-TCPP Nanozyme-Based Flexible Immunoassay for Dual-Mode Pressure-Temperature Monitoring of Low-Abundance Proteins" . | ANALYTICAL CHEMISTRY 96 . 21 (2024) : 8740-8746 . |
| APA | Wu, Di , Tang, Juan , Yu, Zhichao , Gao, Yuan , Zeng, Yongyi , Tang, Dianping et al. Pt/Zn-TCPP Nanozyme-Based Flexible Immunoassay for Dual-Mode Pressure-Temperature Monitoring of Low-Abundance Proteins . | ANALYTICAL CHEMISTRY , 2024 , 96 (21) , 8740-8746 . |
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The development of rapid screening sensing platforms to improve pre-screening mechanisms in community healthcare is necessary to meet the significant need for portable testing in biomarker diagnostics. Here, we designed a portable smartphone-based photoelectrochemical (PEC) immunoassay for carcinoembryonic antigen (CEA) detection using Cu -doped ultrathin porous Bi 2 WO 6 (CuBWO) nanosheets as the photoactive material. The CuBWO nanosheets exhibit a fast photocurrent response and excellent electrical transmission rate under UV light due to their surface plasmon resonance effect (SPR). The method uses glucose oxidase-labeled secondary antibody as a signal indicator for sandwich -type immune conjugation. In the presence of the target CEA, the electrons and holes generated at the surface of the photo -excited ultrathin porous CuBWO were rapidly consumed by the production of H 2 O 2 from glucose oxidase oxidizing glucose, resulting in a weakened photocurrent signal. The photocurrent intensity increased logarithmically and linearly with increasing CEA concentration (0.02 -50 ng mL -1 ), with a detection limit of 15.0 pg mL -1 (S/N = 3). The system provides a broader idea for inferring the electron -hole transport mechanism in ultrathin porous nanosheet layer materials and developing efficient PEC sensors.
Keyword ：
Carcinoembryonic antigen Carcinoembryonic antigen Photoelectrochemical immunoassay Photoelectrochemical immunoassay Surface plasmon resonance Surface plasmon resonance Ultrathin porous CuBWO nanosheets Ultrathin porous CuBWO nanosheets
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| GB/T 7714 | Wang, Haiyang , Tang, Dianyong , Wang, Xin et al. Surface plasmon resonance-enhanced photoelectrochemical immunoassay with Cu-doped porous Bi 2 WO 6 nanosheets [J]. | TALANTA , 2024 , 273 . |
| MLA | Wang, Haiyang et al. "Surface plasmon resonance-enhanced photoelectrochemical immunoassay with Cu-doped porous Bi 2 WO 6 nanosheets" . | TALANTA 273 (2024) . |
| APA | Wang, Haiyang , Tang, Dianyong , Wang, Xin , Wan, Xinyu , Tang, Dianping . Surface plasmon resonance-enhanced photoelectrochemical immunoassay with Cu-doped porous Bi 2 WO 6 nanosheets . | TALANTA , 2024 , 273 . |
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