Talanta最新文献 - Book学术

An effective dihydroxanthene-based fluorescent probe for phosgene visual detection in solution and gaseous phases. 一种有效的二羟基蒽基荧光探针，用于光气液相视觉检测。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-18 DOI: 10.1016/j.talanta.2026.129685

Qinqin Tian, Zeyu Song, Wei He

{"title":"An effective dihydroxanthene-based fluorescent probe for phosgene visual detection in solution and gaseous phases.","authors":"Qinqin Tian, Zeyu Song, Wei He","doi":"10.1016/j.talanta.2026.129685","DOIUrl":"10.1016/j.talanta.2026.129685","url":null,"abstract":"Real-time monitoring of phosgene is of great significance for public health and environmental safety. To achieve this goal, a strategy was proposed to construct a probe structure featuring long excitation/emission wavelengths and high fluorescence quantum yield by introducing receptors with different electron-withdrawing abilities to regulate intramolecular charge transfer (ICT). Based on this, a class of fluorescent probes based on dihydroxanthene dyes (DHX-Phos-Pyr (Q.Y. = 7.91%), DHX-Phos-BZT (Q.Y. = 4.70%)) were designed and synthesized for the visualization and fluorescence analysis detection of phosgene. Through comparison, it was found that DHX-Phos-Pyr exhibited high selectivity and sensitivity, with response time of less than50 s detection limit of 32 nM in solution and gaseous phosgene detection limit of 0.31 ppm. The strong color difference and macroscopic red color have the function of stimulating people's senses and emotions. DHX-Phos-Pyr exhibits a clear color change from yellow to pink for the identification and analysis of phosgene solution by naked eye, and under 365 nm conditions, it displays a bright red color after responding to phosgene, serving as a strong warning. In addition, test strips loaded with DHX-Phos-Pyr were prepared and shown to possess practical utility for the sensitive fluorescence detection of phosgene.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"305 ","pages":"129685"},"PeriodicalIF":6.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147493465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to 'Research progress of single molecule sensors based on DNA platform' [Talanta 302 (2026) 129449]. “基于DNA平台的单分子传感器的研究进展”[Talanta 302(2026) 129449]的勘误表。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-21 DOI: 10.1016/j.talanta.2026.129636

Yu Huang, Muhammad Zeeshan Tahir, Vesna Antic, Milica Balaban, Yuanwei Lin, Haixia Shi, Li Gao

引用次数: 0

Development of comparative and machine learning-based methodologies for the identification of inks applicable in the field of cultural heritage and forensic science. 开发基于比较和机器学习的方法，用于识别适用于文化遗产和法医学领域的油墨。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-19 DOI: 10.1016/j.talanta.2026.129678

Vanessa Pinna, Stefania Porcu, Gianluca Siotto, Enrica Tuveri, Pier Carlo Ricci, Edoardo Lodo, Pietro Coli, Roberto Cardia, Daniele Chiriu

{"title":"Development of comparative and machine learning-based methodologies for the identification of inks applicable in the field of cultural heritage and forensic science.","authors":"Vanessa Pinna, Stefania Porcu, Gianluca Siotto, Enrica Tuveri, Pier Carlo Ricci, Edoardo Lodo, Pietro Coli, Roberto Cardia, Daniele Chiriu","doi":"10.1016/j.talanta.2026.129678","DOIUrl":"10.1016/j.talanta.2026.129678","url":null,"abstract":"This study proposes the development of comparative and machine learning-based methodologies for the identification of inks and pigments, with potential applications in both cultural heritage diagnostics and forensic science. A preliminary selection of black inks from various pen brands was analyzed using Raman spectroscopy to define a framework for spectral comparison based on peak shifts and area ratios derived from curve fitting. The proposed method introduces a system based on spectral compatibility allowing the classification of inks based on their compositional similarity. In parallel, an automated analysis code was developed to enhance scalability and reproducibility. This system performs baseline removal, peak normalization, first-stage filtering of incompatible spectra, and refined deconvolution through pseudo-Voigt fitting, generating a numerical similarity score for each comparison. Results demonstrate that the approach allows quantitative estimation of ink compatibility and could be extended to broader datasets through the implementation of a spectral database.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"305 ","pages":"129678"},"PeriodicalIF":6.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147493497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to "Validated LC-MS/MS method for the quantification of glyphosate and its metabolites in human serum: A biomonitoring study in farming intensive regions of the Western Cape, South Africa" [Talanta 305 (2026) 129648]. “用于人类血清中草甘膦及其代谢物定量的有效LC-MS/MS方法：西开普省农业集约化地区的生物监测研究，南非”[Talanta 305(2026) 129648]的勘误。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-21 DOI: 10.1016/j.talanta.2026.129683

Luthando L Tiya, Rianita van Onselen, Annalise Zemlin, Eric Decloedt, Tracy Kellermann

引用次数: 0

Microstructured electrode coupled with electrochemical deposition enrichment laser-induced breakdown spectroscopy for ppb-level sensitive detection of Pb²⁺ and Cr³⁺ in water. 微结构电极耦合电化学沉积富集激光诱导击穿光谱用于水中Pb2+和Cr3+的ppb级灵敏检测。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-23 DOI: 10.1016/j.talanta.2026.129698

Hailong Yu, Qiuyun Wang, Jingquan Lin, Wanjun Liu, Yubo Liu, Xun Gao

{"title":"Microstructured electrode coupled with electrochemical deposition enrichment laser-induced breakdown spectroscopy for ppb-level sensitive detection of Pb2+ and Cr3+ in water.","authors":"Hailong Yu, Qiuyun Wang, Jingquan Lin, Wanjun Liu, Yubo Liu, Xun Gao","doi":"10.1016/j.talanta.2026.129698","DOIUrl":"10.1016/j.talanta.2026.129698","url":null,"abstract":"Water quality is increasingly threatened by metal contamination, posing serious risks to ecosystems and human health. Laser-induced breakdown spectroscopy (LIBS) offers rapid, multi-element detection for monitoring contaminated water, but its sensitivity and stability are limited by matrix effects and inefficient energy coupling, making ppb-level detection challenging. In this study, a microstructured electrode coupled with electrochemical deposition enrichment for LIBS detection (ME-ED-LIBS) was developed, prepared by nanosecond laser etching on copper. Under applied electric fields, Pb2+ and Cr3+ ions were directionally deposited on the microstructured electrodes. Quantitative analysis showed that, compared with planar electrodes, microstructured electrodes increased the Cr I 425.43 nm and Pb I 405.78 nm line intensities by 1.5-5 times while reducing the relative standard deviation from 12% to below 5%. Limits of detection decreased from 10.59 to 1.34 ng/mL for Cr and from 215.75 to 26.11 ng/mL for Pb, improving sensitivity approximately 8 times, with average relative errors dropping to 1.23% and 1.18%, far below the 7.04% and 18.10% for planar electrodes. Electrochemical deposition simulations using a tertiary current distribution phase-field model revealed a closed-loop coupling mechanism: field enhancement drives directed deposition, induces morphology reconstruction, and further amplifies the field, optimizing enrichment pathways and interfacial selectivity. This approach enables precise ng/mL (ppb-level) quantification of metal contaminants, providing a sensitive, reliable technique for water quality monitoring.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"305 ","pages":"129698"},"PeriodicalIF":6.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147508478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of nucleotides with gas chromatography - mass spectrometry (GC-MS) using trimethylsulfonium hydroxide (TMSH) and tetramethylammonium hydroxide (TMAH) thermochemolysis: Characterization, comparison and application to future experiments onboard space probes. 利用氢氧化三甲基磺酸（TMSH）和四甲基氢氧化铵（TMAH）热化学分解的气相色谱-质谱（GC-MS）检测核苷酸：表征、比较及其在未来太空探测器实验中的应用

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-19 DOI: 10.1016/j.talanta.2026.129684

Guillaume J Masson, Arnaud Buch, David Boulesteix, Caroline Freissinet, Melissa G Trainer, Jennifer C Stern, Luoth Chou, Alex Abello, Cyril Szopa

{"title":"Detection of nucleotides with gas chromatography - mass spectrometry (GC-MS) using trimethylsulfonium hydroxide (TMSH) and tetramethylammonium hydroxide (TMAH) thermochemolysis: Characterization, comparison and application to future experiments onboard space probes.","authors":"Guillaume J Masson, Arnaud Buch, David Boulesteix, Caroline Freissinet, Melissa G Trainer, Jennifer C Stern, Luoth Chou, Alex Abello, Cyril Szopa","doi":"10.1016/j.talanta.2026.129684","DOIUrl":"10.1016/j.talanta.2026.129684","url":null,"abstract":"Trimethylsulfonium hydroxide (TMSH) thermochemolysis is a derivatization technique allowing for the extraction and detection of molecular bioindicators for future in situ exploration space probes using pyrolysis -gas chromatography - mass spectrometry (Py-GC-MS). TMSH is a studied candidate alternative reagent to tetramethylammonium hydroxide (TMAH) used in currently planned spaceflight missions (ExoMars, Dragonfly). To assess the viability of TMSH for its use in spaceflight instruments, this study explores its performance on a commercial instrument for the detection of RNA nucleotides and compares it to the performance of TMAH. The TMSH thermochemolysates of nucleotides are a variety of products, mainly in the form of methylated phosphate, methylated nucleobases, furfural and an unidentified ribose-related organic compound. Discriminatory elements based on the number and nature of methylated nucleobases as well as the presence of signature sugar-related peaks allow for distinction from other genetic analytes and potentially specific identification of ribonucleotides. A TMSH thermochemolysis temperature of 600 °C allowed for the most sensitive detection of nucleotide analytes. Sensitivity measurements showed that TMSH thermochemolysis presents limits of detection (LODs) for nucleotides ranging from 14 fmol to 41 pmol depending on the nucleotide where TMAH gives LODs between 1 fmol and 30 pmol. TMAH offers overall better analytical performances than TMSH based on this preliminary study, but no major scientific drawback has yet been identified in this work for TMSH thermochemolysis and its use for future space missions.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"305 ","pages":"129684"},"PeriodicalIF":6.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147508527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tracking metal-containing particles in wastewater using single-particle ICP-MS. 利用单颗粒ICP-MS追踪废水中含金属颗粒。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-20 DOI: 10.1016/j.talanta.2026.129692

Hao Liu, Nian Liu, Po Tang, Feng Wei, Zechen Yu, Jun Zhang, Yingying Li, Hua Guo, Lihong Liu, Bin He, Ligang Hu, Guibin Jiang

{"title":"Tracking metal-containing particles in wastewater using single-particle ICP-MS.","authors":"Hao Liu, Nian Liu, Po Tang, Feng Wei, Zechen Yu, Jun Zhang, Yingying Li, Hua Guo, Lihong Liu, Bin He, Ligang Hu, Guibin Jiang","doi":"10.1016/j.talanta.2026.129692","DOIUrl":"10.1016/j.talanta.2026.129692","url":null,"abstract":"Metal-containing particles are the main component of the positive electrode in lithium-ion batteries (LIBs). However, the occurrence and behavior of these particles in wastewater remain inadequately understood. In this study, single-particle inductively coupled plasma mass spectrometry (SP-ICP-MS) was employed to systematically track metal-containing particles in wastewater from a ternary precursor (TP) production facility and a full-scale wastewater treatment plant (WWTP). Multiple metal particles, including Ni-, Co-, Mn-, Al-, Cu-, and Zn-containing particles, were detected with size ranges of approximately 20-120 nm, 15-200 nm, 10-800 nm, 15-730 nm, 20-120 nm, and 25-925 nm, respectively. The above sentence in abstract should be revised as: Multiple metal particles, including nickel (Ni)-, cobalt (Co)-, manganese (Mn)-, aluminum (Al)-, copper (Cu)-, and zinc (Zn)-containing particles, were detected with size ranges of approximately 20-120 nm, 15-200 nm, 10-800 nm, 15-730 nm, 20-120 nm, and 25-925 nm, respectively. Characterization using transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy (TEM-EDS) revealed that these particles consisted of multiple metals and were partly in an agglomerated state. Further analysis demonstrated that the metal-containing particles showed metal-specificity in their dynamic transfer and transformation. Whereas Ni-, Co-, and Al-containing particles exhibited significant size variations, Mn-, Cu-, and Zn-containing particles showed little change. The particle number concentration decreased for Mn, Al, and Zn, increased for Co and Cu, while it remained stable for Ni. This study provides critical insights for improving treatment and management strategies of metal-containing particles in wastewater.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"305 ","pages":"129692"},"PeriodicalIF":6.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147502601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retraction notice to "Rational design of Ag-doped MnFe₂O₄/HNTs for peroxidase-mimicking activity and colorimetric sensing of uric acid in human serum" [Talanta 281 (2025), 126913]. “合理设计ag掺杂MnFe2O4/HNTs用于人血清中过氧化物酶模拟活性和尿酸的比色检测”[Talanta 281(2025), 126913]。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-13 DOI: 10.1016/j.talanta.2026.129633

Han Lu, Zhenbo Xiang, Hailong Pang, Qiang Ren

引用次数: 0

Corrigendum to "Epigenetically modified DNAzyme walkers for simultaneous imaging of MGMT and FTO activity in living cancer cells" [Talanta, Volume 303 (2026), Article 129513]. “表观遗传修饰的DNAzyme步行器用于同时成像MGMT和FTO活性活癌细胞”的勘误[Talanta，卷303(2026)，第129513条]。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-19 DOI: 10.1016/j.talanta.2026.129624

Yewei Li, Peiwen Zhu, Yanfang Gong, Fuling Liang, Mingda Li, Jincheng Zeng, Huanhuan Sun, Min Hou, Mingyan Jiang

引用次数: 0

Dual-mode sensing of pulse and sweat electrolytes via integrated hydrogel-based biosensors for health management. 通过集成的基于水凝胶的生物传感器对脉搏和汗液电解质进行双模式传感，用于健康管理。

IF 6.1 1区化学

Talanta Pub Date : 2026-08-01 Epub Date: 2026-03-21 DOI: 10.1016/j.talanta.2026.129697

Yuan Zhang, Yanlan Zhong, Rui Xu, Lingyan Feng, Xinghua Gao, Pengcheng Xu

{"title":"Dual-mode sensing of pulse and sweat electrolytes via integrated hydrogel-based biosensors for health management.","authors":"Yuan Zhang, Yanlan Zhong, Rui Xu, Lingyan Feng, Xinghua Gao, Pengcheng Xu","doi":"10.1016/j.talanta.2026.129697","DOIUrl":"10.1016/j.talanta.2026.129697","url":null,"abstract":"With the rapid development of wearable health monitoring technology, real-time, non-invasive, and multi-modal physiological signal acquisition has become a key requirement for improving disease warning and health management levels. Here, we demonstrate a dual-mode wearable health monitoring system based on functionalized hydrogel, which realizes accurate detection of ionic concentrations in human sweat and stable extraction of pulse wave signals. A porous hydrogel sweat sensing platform based on polyvinyl alcohol (PVA) is designed to solve the problems of low electrolyte penetration efficiency and skin irritation during sweat detection. Combined with electrodes modified with polypyrrole (Ppy) and ionophores, electrochemical sensors capable of measuring the concentrations of sodium (Na+) and chloride (Cl-) ions are constructed. The sensitivity of the sensors is close to theoretical value of the Nernst equation, exhibiting good selectivity, repeatability, long-term stability, and reliability. In order to capture weak pulse signals, we have developed a highly sensitive pulse sensor based on PVA/poly (ethylene glycol) (PVA/PEG) dual network conductive hydrogel. Furthermore, a pyramid array structure is designed to develop piezoresistive flexible pressure sensor. This sensor features high sensitivity, rapid response/recovery time (25.0 ms/17.5 ms), low detection limit (7.9 Pa), and long-term stability, capable of accurately detecting arterial pulse waves and heart rate under various physiological conditions. A matching smartphone-integrated monitoring system is then developed, which supports dual channel ion detection, pulse waveform analysis and wireless data transmission. This study provides an effective solution for personalized health monitoring, and shows the application potential of functional hydrogel in the field of wearable health monitoring.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"305 ","pages":"129697"},"PeriodicalIF":6.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147508490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0