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学者姓名:林振宇
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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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Combined the electrostatic interaction of the negatively charged gold nanorods (AuNRs) (as acceptor) and Ru(bpy)(3)(2+) (as donor), an electrochemiluminescence resonance energy transfer (ECL-RET) sensor was constructed and applied for the detection of organophosphorus pesticides (OPs). Negatively charged AuNRs were synthesized by modifying AuNRs with polystyrene sulfonate (PSS) firstly, which can bind to Ru(bpy)(3)(2+) through electrostatic interaction so that the luminophore was absorbed by the acceptor, the resonance energy transfer occurred and only low ECL signal had been detected. Thiocholine can be produced by the hydrolysis process of acetylthiocholine (ATCh) with the help of acetylcholinesterase (AChE), which can bond with PSS-modified AuNRs (PSS-AuNRs) through gold-sulfur interaction, this caused the releasing of the adsorbed Ru(bpy)(3)(2+) into the solution and resulting in the restoration of the ECL intensity. However, the activity of AChE was inhibited by OPs, and the recovery process of the ECL signal was thus suppressed as well. In this study, chlorpyrifos was chosen as model target, the results indicated that the correlation between the ECL intensity and the logarithm of chlorpyrifos concentration showed remarkable linearity across 1 ng/mL to 1 mg/mL, achieving a detection limit of 0.51 ng/mL. The proposed system has been utilized for detecting OPs in real samples with satisfied results.
Keyword :
Acetylcholinesterase Acetylcholinesterase Electrochemiluminescence Electrochemiluminescence Gold nanorods Gold nanorods Organophosphorus pesticides Organophosphorus pesticides Resonance energy transfer Resonance energy transfer
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GB/T 7714 | Li, Zixin , Lin, Zeyu , Chen, Lifen et al. Electrochemiluminescence sensor for organophosphorus pesticides based on the regulation of resonance energy transfer between negative charged gold nanorods and Ru(bpy)32+ [J]. | TALANTA , 2025 , 281 . |
MLA | Li, Zixin et al. "Electrochemiluminescence sensor for organophosphorus pesticides based on the regulation of resonance energy transfer between negative charged gold nanorods and Ru(bpy)32+" . | TALANTA 281 (2025) . |
APA | Li, Zixin , Lin, Zeyu , Chen, Lifen , Lin, Yue , Luo, Fang , Lin, Cuiying et al. Electrochemiluminescence sensor for organophosphorus pesticides based on the regulation of resonance energy transfer between negative charged gold nanorods and Ru(bpy)32+ . | TALANTA , 2025 , 281 . |
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Acid vapors emitted by chemical industries pose an increasing threat to public health. The development of a costeffective sensor for the on-site and real-time monitoring of environmental acid vapor is of great significance. Aggregation-induced emission (AIE) luminogens overcome the aggregation-caused quenching effect and exhibit intense fluorescence when supported in the solid matrices. Silica isoporous membrane (SIM), characterized by vertically ordered nanochannels, holds great promise as a platform for encapsulating AIE luminogens and enabling gas sensing applications. The SIM containing surfactant micelles was prepared on an ITO electrode to obtain the M-SIM/ITO, and Tetrakis(4-carboxyphenyl)ethylene (TCPE) was employed as the investigated AIE luminogen. Upon application of positive potential, the negatively charged TCPE molecules were driven into the vertically ordered nanochannels, resulting in observable AIE fluorescence. By investigating the electrophoresis conditions such as TCPE charge, nanochannel microenvironment, and driving electric field, the AIE mechanism within the nanochannels was elucidated. The fluorescence of TCPE@M-SIM/ITO exhibited high sensitivity towards acid vapor and displayed reversible changes during the absorption and desorption processes. This behavior can be attributed to the SIM's strong absorption capability towards acid vapor as well as the reversible conversion of acid vapor on TCPE aggregates. This work presented an innovative methodology for studying luminophores within an orderly nanoconfined space, leading to a new perspective on the AIE mechanism.
Keyword :
Acid vapor Acid vapor Aggregation-induced emission Aggregation-induced emission Electrophoretic deposition Electrophoretic deposition Nanochannel-confined luminophores Nanochannel-confined luminophores Silica isoporous membrane Silica isoporous membrane
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GB/T 7714 | Yao, Qingda , Fang, Qiaoling , Song, Zhiping et al. Electrophoresis-driven AIE luminogens encapsulated within silica isoporous membrane for acid vapor sensing [J]. | TALANTA , 2025 , 282 . |
MLA | Yao, Qingda et al. "Electrophoresis-driven AIE luminogens encapsulated within silica isoporous membrane for acid vapor sensing" . | TALANTA 282 (2025) . |
APA | Yao, Qingda , Fang, Qiaoling , Song, Zhiping , Ni, Jiancong , Yang, Weiqiang , Lin, Zhenyu . Electrophoresis-driven AIE luminogens encapsulated within silica isoporous membrane for acid vapor sensing . | TALANTA , 2025 , 282 . |
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Metal-organic frameworks, which are the desired candidates for biosensing application due to their tunable properties, are significantly hindered by their rapid degradation in aqueous solutions, as well as the loss of their inherent fluorescence. Most studies aim to improve the hydrophobicity of materials by modifying their contact angle, thereby enhancing water stability. However, water droplets poorly adhere to the surface of hydrophobic materials, limiting their application for direct contact and detection in aqueous environments. Drawing inspiration from the sacrificial protection mechanism of butterfly wings used to evade predation and entanglement, a universal approach is successfully developed to protect water-sensitive MIL-MOFs from water molecule attack while preserving good hydrophilicity. Using the organic ligand 2,2 '-bipyridine-5,5 '-dicarboxylic acid (bpydc) as sacrificial protection scales, the MIL-125-NH2-bpydc demonstrated broad pH structural stability (pH 2-12) and fluorescence stability increased by 10.17 time in aqueous solutions, achieving the highest performance in MILMOFs. The MIL-125-NH2-bpydc is biocompatible enabling it to perform long-term fluorescence imaging in living cells and zebrafish, further detecting hydrogen sulfide (H2S) in the aqueous and biological systems via turn-on fluorescence emission. This study offers a novel and universal sacrifice-protection strategy for the design and development of the luminescent biocompatible MOFs tailored for biosensing applications.
Keyword :
fluorescence fluorescence H2S H2S metal-organic frameworks metal-organic frameworks sacrifice-protection strategy sacrifice-protection strategy water stable water stable
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GB/T 7714 | Weng, Zhanglin , Xie, Zhijie , Wu, Xiaoping et al. Water-Stable MIL-MOFs Developed Through a Novel Sacrifice-Protection Strategy Inspired by Butterfly Wings' Scales for Long-Term Turn-On Fluorescence Sensing of H2S [J]. | SMALL METHODS , 2025 . |
MLA | Weng, Zhanglin et al. "Water-Stable MIL-MOFs Developed Through a Novel Sacrifice-Protection Strategy Inspired by Butterfly Wings' Scales for Long-Term Turn-On Fluorescence Sensing of H2S" . | SMALL METHODS (2025) . |
APA | Weng, Zhanglin , Xie, Zhijie , Wu, Xiaoping , Qiu, Bin , Chen, Juanjuan , Sun, Weiming et al. Water-Stable MIL-MOFs Developed Through a Novel Sacrifice-Protection Strategy Inspired by Butterfly Wings' Scales for Long-Term Turn-On Fluorescence Sensing of H2S . | SMALL METHODS , 2025 . |
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采用鲁米诺/H2O2 作为微通道电化学发光(ECL)报告体系,构建了一种微通道ECL传感器用于四环素(TC)的检测.鲁米诺/H2O2 ECL体系较低的激发电位可以降低体系钳位电压的影响,从而提高微通道ECL传感器的检测性能.修饰了四环素适配体(TC-aptamer)的微通道可特异性识别并捕获TC,TC带有的正电荷导致微通道内界面负电荷密度降低,使微通道的离子电流增加,导致体系ECL信号增强.对电解质浓度、TC-aptamer修饰液浓度、TC与TC-aptamer的反应时间等条件进行了优化.在最优条件下,体系ECL信号变化值与TC浓度在1.00~200 ng/mL范围内呈良好的线性关系,检出限为0.69 ng/mL.此传感器具有良好的选择性,并成功用于牛奶样本中TC的检测.
Keyword :
四环素 四环素 微通道 微通道 电化学发光 电化学发光 适配体 适配体 鲁米诺 鲁米诺
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GB/T 7714 | 黄少坤 , 谢秀琳 , 蔡华宾 et al. 以鲁米诺/过氧化氢作为报告体系的微通道电化学发光传感器用于四环素的检测 [J]. | 分析化学 , 2025 , 53 (3) : 356-363 . |
MLA | 黄少坤 et al. "以鲁米诺/过氧化氢作为报告体系的微通道电化学发光传感器用于四环素的检测" . | 分析化学 53 . 3 (2025) : 356-363 . |
APA | 黄少坤 , 谢秀琳 , 蔡华宾 , 黄艳玲 , 林悦 , 林振宇 . 以鲁米诺/过氧化氢作为报告体系的微通道电化学发光传感器用于四环素的检测 . | 分析化学 , 2025 , 53 (3) , 356-363 . |
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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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鱼油富含二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)等ω-3多不饱和脂肪酸,对心血管疾病防治具有积极作用,其功效与品质直接关联.随着消费者对鱼油质量安全需求的日趋增长,快速检测技术的发展与应用对鱼油生产过程监控及其产品品质保障具有重要意义.光谱与物质的组成及含量密切相关,通过分析物质的光谱特征,获取能够反映其分子结构的信息,从而实现对化合物的定性、定量检测.相比传统化学检测方法,光谱技术具有高效、无损、无需过多前处理及绿色环保等优势,在鱼油品质检测方面具有一定的应用及开发前景.文章阐述了近红外、中红外和拉曼光谱技术及其在鱼油品质检测中的应用原理,归纳了建立光谱预测模型的常规步骤,介绍了几种用于光谱信息预处理、模型校正的化学计量学方法,梳理了近年来国内外基于这三种光谱技术在鱼油营养成分(脂肪酸、磷脂、虾青素等)、理化指标(酸价、过氧化值、碘值等)和掺假分析等品质检测方面的应用研究,并探讨了现代化光谱技术结合化学计量学在鱼油品质快速无损检测的应用前景及存在问题,以期实现从实验室研究扩展到实际生产检测,从而促进我国鱼油产业的健康发展.
Keyword :
中红外光谱 中红外光谱 化学计量学 化学计量学 拉曼光谱 拉曼光谱 近红外光谱 近红外光谱 鱼油 鱼油
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GB/T 7714 | 马湖伊杉 , 潘南 , 林振宇 et al. 振动光谱技术在鱼油品质检测中的应用研究进展 [J]. | 光谱学与光谱分析 , 2025 , 45 (2) : 301-311 . |
MLA | 马湖伊杉 et al. "振动光谱技术在鱼油品质检测中的应用研究进展" . | 光谱学与光谱分析 45 . 2 (2025) : 301-311 . |
APA | 马湖伊杉 , 潘南 , 林振宇 , 陈晓婷 , 吴靖娜 , 张芳 et al. 振动光谱技术在鱼油品质检测中的应用研究进展 . | 光谱学与光谱分析 , 2025 , 45 (2) , 301-311 . |
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The intracellular delivery of protein drugs via nanocarriers offers significant potential for expanding their therapeutic applications. However, the unintended activation of innate immune responses and inflammation triggered by the carriers presents a major challenge, often compromising therapeutic efficacy. Here, we present oligoethylenimine-thioketal (OEI-TK), a reactive oxygen species-responsive cationic polymer with intrinsic anti-inflammatory properties, to overcome this challenge. OEI-TK self-assembles electrostatically with bovine serum albumin (BSA) to form stable nanoparticles (OTB NPs) with excellent encapsulation efficiency. In vitro studies confirmed that OTB NPs retained OEI-TK's antioxidant and anti-inflammatory properties, enhanced biocompatibility, and efficiently delivered BSA into cells. Furthermore, OEI-TK facilitated the intracellular delivery of beta-galactosidase while preserving its enzymatic activity, demonstrating its potential for functional protein transport. These findings highlight OEI-TK as a promising platform with dual benefits of inflammation modulation and intracellular protein delivery, holding potential for the synergistic treatment of inflammation-related diseases.
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GB/T 7714 | Wang, Yongming , Ming, Yangcan , Yu, Zhichao et al. ROS-Responsive Cationic Polymers with Intrinsic Anti-Inflammatory Activity for Intracellular Protein Delivery [J]. | BIOMACROMOLECULES , 2025 , 26 (4) : 2268-2281 . |
MLA | Wang, Yongming et al. "ROS-Responsive Cationic Polymers with Intrinsic Anti-Inflammatory Activity for Intracellular Protein Delivery" . | BIOMACROMOLECULES 26 . 4 (2025) : 2268-2281 . |
APA | Wang, Yongming , Ming, Yangcan , Yu, Zhichao , Xu, Zhenjin , Zou, Minglang , Chen, Cuiping et al. ROS-Responsive Cationic Polymers with Intrinsic Anti-Inflammatory Activity for Intracellular Protein Delivery . | BIOMACROMOLECULES , 2025 , 26 (4) , 2268-2281 . |
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Herein, a novel dual-function paper-based biosensor using diffusion wet area as readout has been developed for simple and sensitive detection of hyaluronidase (HAase) and human papillomavirus (HPV) 16 DNA, respectively. The target-regulated-water absorption hydrogel synthesized by hyaluronic acid (HA) and single-stranded DNA (ssDNA) is chosen as an ideal material for diffusion wet area generation on paper. The hydrogel can be degraded through the enzymolysis of HA by HAase or the trans-cleavage of ssDNA by HPV DNA-activated CRISPR/cas12a system. Then the diffusion wet area generated by the broken hydrogel with the free water released from the hydrogel dropped on the glass fiber filter paper can be captured by a smart-phone and calculated by the product of the pixel ratio (pixels of wet area/pixels of glass fiber filter paper) and actual area of the filter paper. The diffusion wet area has good linear relationships with HAase (0-40 U/mL) and HPV 16 DNA (0.1-1000 pM), respectively. The biosensor provides a novel signal readout mode, shows satisfactory sensitivity with the detection limits of 0.15 U/mL for HAase and 66.95 fM for HPV 16 DNA, and has been successfully used for HPV 16 DNA and HAase detection in clinical urine and cervical brush samples, which is promising for early cervical cancer screening and HPV monitoring in HPV patients.
Keyword :
CRISPR/cas12a CRISPR/cas12a Diffusion wet area Diffusion wet area HPV 16 DNA HPV 16 DNA Hyaluronidase Hyaluronidase Portable sensing strategy Portable sensing strategy
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GB/T 7714 | Li, Ping , Xu, Shaohua , Dong, Zishu et al. Dual-function paper-based biosensor for sensitive detection of hyaluronidase and human papillomavirus DNA using diffusion wet area as readout [J]. | BIOSENSORS & BIOELECTRONICS , 2025 , 271 . |
MLA | Li, Ping et al. "Dual-function paper-based biosensor for sensitive detection of hyaluronidase and human papillomavirus DNA using diffusion wet area as readout" . | BIOSENSORS & BIOELECTRONICS 271 (2025) . |
APA | Li, Ping , Xu, Shaohua , Dong, Zishu , Liu, Hongkuan , Huang, Jia , Deng, Xiaoyu et al. Dual-function paper-based biosensor for sensitive detection of hyaluronidase and human papillomavirus DNA using diffusion wet area as readout . | BIOSENSORS & BIOELECTRONICS , 2025 , 271 . |
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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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