Spherical fluorinated covalent organic polymer for highly efficient and selective extraction of fipronil and its metabolites in soil
This study paves the way for pesticide analysis in soil risk assessment.PMID:38581855 | DOI:10.1016/j.talanta.2024.126033 (Source: Talanta)
Source: Talanta - April 6, 2024 Category: Chemistry Authors: Zhaoyu Qiao Ying Liu Shenghuai Hou Yuxuan Bai Shuang Zhen Shu Yang Hui Xu Source Type: research
A near-infrared fluorescence probe with large Stokes shift for selectively monitoring nitroreductase in living cells and mouse tumor models
Talanta. 2024 Mar 21;274:125976. doi: 10.1016/j.talanta.2024.125976. Online ahead of print.ABSTRACTHypoxia is commonly regarded as a typical feature of solid tumors, which originates from the insufficient supply of oxygen. Herein, the development of an efficient method for assessing hypoxia levels in tumors is strongly desirable. Nitroreductase (NTR) is an overexpressed reductase in the solid tumors, has been served as a potential biomarker to evaluate the degrees of hypoxia. In this work, we elaborately synthesized a new near-infrared (NIR) fluorescence probe (MR) to monitor NTR activity for assessment of hypoxia levels i...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Yongqing Zhou Xiaofeng Yang Jing Zhang Shuai Xu Mei Yan Source Type: research
A study of the transient gas flow affected ion transmission in atmospheric pressure interfaces based on large eddy simulation for electrospray ionization mass spectrometry
In conclusion, the application of the scale-resolving turbulence model helps us to understand the complicated fluid-ion interaction mechanism in APIs and is promising in the development of mass spectrometry instruments of higher performance.PMID:38579418 | DOI:10.1016/j.talanta.2024.125980 (Source: Talanta)
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Xingliang He Xing Guo Fulong Deng Pengyu Zeng Bin Wu Hong'en Sun Zhongjun Zhao Yixiang Duan Source Type: research
High-throughput semi-automated emulsive liquid-liquid microextraction for detecting SDHI fungicides in water, juice, and alcoholic beverage samples via UHPLC-MS/MS
Talanta. 2024 Apr 3;274:126038. doi: 10.1016/j.talanta.2024.126038. Online ahead of print.ABSTRACTHerein, a High-Throughput Semi-automated Emulsive Liquid-Liquid Microextraction (HTSA-ELLME) method was developed to detect Succinate Dehydrogenase Inhibitor (SDHI) fungicides in food samples via UHPLC-MS/MS. The Oil-in-Water (O/W) emulsion comprising a hydrophobic extractant and water was dilutable with the aqueous sample solution. Upon injecting the primary emulsion into the sample solution, a secondary O/W emulsion was formed, allowing SDHI fungicides to be extracted. Subsequently, a NaCl-saturated solution was injected in ...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Jin Liu Wei Pan Tao Pei Fuyun Wang Wenting Zhao Enhua Wang Li Li Xu Jing Source Type: research
Soft interface confined DNA walker for sensitive and specific detection of SARS-CoV-2 variants
Talanta. 2024 Apr 4;274:126009. doi: 10.1016/j.talanta.2024.126009. Online ahead of print.ABSTRACTNucleic acid detection is conducive to preventing the spread of COVID-19 pandemic. In this work, we successfully designed a soft interface confined DNA walker by anchoring hairpin reporter probes on cell membranes for the detection of SARS-CoV-2 variants. In the presence of target RNA, the cyclic self-assembly reaction occurred between hairpin probes H1 and H2, and the continuous walking of target RNA on cell membranes led to the gradual amplification of fluorescence signal. The enrichment of H1 on membranes and the unique flu...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Zhangmin Wang Zuowei Yuan Min Liu Zhidong Liu Ping Leng Shijia Ding Jinlin Guo Juan Zhang Source Type: research
Comparative hepato-ameliorative effects of Bambusa nutans fresh and fermented shoot extracts on STZ induced diabetic LACA mice
This study aims to assess the prophylactic hepatoprotective effects of fresh and fermented B. nutans shoot aqueous extract (200 mg/kg b.w.) in STZ induced diabetic LACA mice. Both extracts effectively improved body weight loss, hyperglycemia, and hepatomegaly. Fresh shoot reduced LDH activity and LPO level by 26.1% and 46.6%, while fermented shoot reduced them by 51.5% and 55.8%, respectively. The fermented shoot extract group demonstrated a noteworthy decrease in liver enzymes (SGPT, SGOT, ALP, and bilirubin levels) and an increase in albumin and A/G ratio, with more substantial improvements compared to the group treated ...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Aribam Indira Babita Joshi Ashwani Koul Nirmala Chongtham Source Type: research
Cu < sub > 1.4 < /sub > Mn < sub > 1.6 < /sub > O < sub > 4 < /sub > as a bifunctional transducer for potentiometric Cu < sup > 2+ < /sup > solid-contact ion-selective electrode
Talanta. 2024 Mar 25;274:125993. doi: 10.1016/j.talanta.2024.125993. Online ahead of print.ABSTRACTCurrent potentiometric Cu2+ sensors mostly rely on polymer-membrane-based solid-contact ion-selective electrodes (SC-ISEs) that constitute ion-selective membranes (ISM) and solid contact (SC) for respective ion recognition and ion-to-electron transduction. Herein, we report an ISM-free Cu2+-SC-ISE based on Cu-Mn oxide (Cu1.4Mn1.6O4) as a bifunctional SC layer. The starting point is simplifying complex multi-interfaces for Cu2+-SC-ISEs. Specifically, ion recognition and signal transduction have been achieved synchronously by a...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Xiaocheng Mo Yitian Tang Lijie Zhong Haocheng Wang Sanyang Du Li Niu Shiyu Gan Source Type: research
A near-infrared fluorescence probe with large Stokes shift for selectively monitoring nitroreductase in living cells and mouse tumor models
Talanta. 2024 Mar 21;274:125976. doi: 10.1016/j.talanta.2024.125976. Online ahead of print.ABSTRACTHypoxia is commonly regarded as a typical feature of solid tumors, which originates from the insufficient supply of oxygen. Herein, the development of an efficient method for assessing hypoxia levels in tumors is strongly desirable. Nitroreductase (NTR) is an overexpressed reductase in the solid tumors, has been served as a potential biomarker to evaluate the degrees of hypoxia. In this work, we elaborately synthesized a new near-infrared (NIR) fluorescence probe (MR) to monitor NTR activity for assessment of hypoxia levels i...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Yongqing Zhou Xiaofeng Yang Jing Zhang Shuai Xu Mei Yan Source Type: research
A study of the transient gas flow affected ion transmission in atmospheric pressure interfaces based on large eddy simulation for electrospray ionization mass spectrometry
In conclusion, the application of the scale-resolving turbulence model helps us to understand the complicated fluid-ion interaction mechanism in APIs and is promising in the development of mass spectrometry instruments of higher performance.PMID:38579418 | DOI:10.1016/j.talanta.2024.125980 (Source: Talanta)
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Xingliang He Xing Guo Fulong Deng Pengyu Zeng Bin Wu Hong'en Sun Zhongjun Zhao Yixiang Duan Source Type: research
High-throughput semi-automated emulsive liquid-liquid microextraction for detecting SDHI fungicides in water, juice, and alcoholic beverage samples via UHPLC-MS/MS
Talanta. 2024 Apr 3;274:126038. doi: 10.1016/j.talanta.2024.126038. Online ahead of print.ABSTRACTHerein, a High-Throughput Semi-automated Emulsive Liquid-Liquid Microextraction (HTSA-ELLME) method was developed to detect Succinate Dehydrogenase Inhibitor (SDHI) fungicides in food samples via UHPLC-MS/MS. The Oil-in-Water (O/W) emulsion comprising a hydrophobic extractant and water was dilutable with the aqueous sample solution. Upon injecting the primary emulsion into the sample solution, a secondary O/W emulsion was formed, allowing SDHI fungicides to be extracted. Subsequently, a NaCl-saturated solution was injected in ...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Jin Liu Wei Pan Tao Pei Fuyun Wang Wenting Zhao Enhua Wang Li Li Xu Jing Source Type: research
Soft interface confined DNA walker for sensitive and specific detection of SARS-CoV-2 variants
Talanta. 2024 Apr 4;274:126009. doi: 10.1016/j.talanta.2024.126009. Online ahead of print.ABSTRACTNucleic acid detection is conducive to preventing the spread of COVID-19 pandemic. In this work, we successfully designed a soft interface confined DNA walker by anchoring hairpin reporter probes on cell membranes for the detection of SARS-CoV-2 variants. In the presence of target RNA, the cyclic self-assembly reaction occurred between hairpin probes H1 and H2, and the continuous walking of target RNA on cell membranes led to the gradual amplification of fluorescence signal. The enrichment of H1 on membranes and the unique flu...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Zhangmin Wang Zuowei Yuan Min Liu Zhidong Liu Ping Leng Shijia Ding Jinlin Guo Juan Zhang Source Type: research
Comparative hepato-ameliorative effects of Bambusa nutans fresh and fermented shoot extracts on STZ induced diabetic LACA mice
This study aims to assess the prophylactic hepatoprotective effects of fresh and fermented B. nutans shoot aqueous extract (200 mg/kg b.w.) in STZ induced diabetic LACA mice. Both extracts effectively improved body weight loss, hyperglycemia, and hepatomegaly. Fresh shoot reduced LDH activity and LPO level by 26.1% and 46.6%, while fermented shoot reduced them by 51.5% and 55.8%, respectively. The fermented shoot extract group demonstrated a noteworthy decrease in liver enzymes (SGPT, SGOT, ALP, and bilirubin levels) and an increase in albumin and A/G ratio, with more substantial improvements compared to the group treated ...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Aribam Indira Babita Joshi Ashwani Koul Nirmala Chongtham Source Type: research
Cu < sub > 1.4 < /sub > Mn < sub > 1.6 < /sub > O < sub > 4 < /sub > as a bifunctional transducer for potentiometric Cu < sup > 2+ < /sup > solid-contact ion-selective electrode
Talanta. 2024 Mar 25;274:125993. doi: 10.1016/j.talanta.2024.125993. Online ahead of print.ABSTRACTCurrent potentiometric Cu2+ sensors mostly rely on polymer-membrane-based solid-contact ion-selective electrodes (SC-ISEs) that constitute ion-selective membranes (ISM) and solid contact (SC) for respective ion recognition and ion-to-electron transduction. Herein, we report an ISM-free Cu2+-SC-ISE based on Cu-Mn oxide (Cu1.4Mn1.6O4) as a bifunctional SC layer. The starting point is simplifying complex multi-interfaces for Cu2+-SC-ISEs. Specifically, ion recognition and signal transduction have been achieved synchronously by a...
Source: Talanta - April 5, 2024 Category: Chemistry Authors: Xiaocheng Mo Yitian Tang Lijie Zhong Haocheng Wang Sanyang Du Li Niu Shiyu Gan Source Type: research
Joint forces of mass spectrometric techniques (ICP-MS and MALDI-TOF-MS) and fluorescence spectrometry in the study of platinum-based cytostatic drugs interactions with metallothionein MT2 and MT3
Talanta. 2024 Mar 21;274:125920. doi: 10.1016/j.talanta.2024.125920. Online ahead of print.ABSTRACTHerby, the interaction of metallothioneins with commonly used Pt-based anticancer drugs - cisplatin, carboplatin, and oxaliplatin - was investigated using the combined power of elemental (i.e. LA-ICP-MS, CE-ICP-MS) and molecular (i.e. MALDI-TOF-MS) analytical techniques providing not only required information about the interaction, but also the benefit of low sample consumption. The amount of Cd and Pt incorporated within the protein was determined for protein monomers and dimer/oligomers formed by non-oxidative dimerization....
Source: Talanta - April 4, 2024 Category: Chemistry Authors: Kristyna Pavelicova Tomas Do Marketa Vejvodova Tomas Vaculovic Kinga Nowak Magdalena Matczuk Sylwia Wu Artur Kr ężel Vojtech Adam Marketa Vaculovicova Source Type: research
The dual ECL signal enhancement strategy of Pd nanoparticles attached covalent organic frameworks and exonuclease cycling reaction for the ultrasensitive detection of progesterone
Talanta. 2024 Apr 3;274:125934. doi: 10.1016/j.talanta.2024.125934. Online ahead of print.ABSTRACTNowadays, novel and efficient signal amplification strategy in electrochemiluminescence (ECL) platform is urgently needed to enhance the sensitivity of biosensor. In this work, the dual ECL signal enhancement strategy was constructed by the interactions of Pd nanoparticles attached covalent organic frameworks (Pd NPs@COFs) with tris (bipyridine) ruthenium (RuP) and Exonuclease III (Exo.III) cycle reaction. Within this strategy, the COFs composite was generated from the covalent reaction between 2-nitro-1,4-phenylenediamine (NP...
Source: Talanta - April 4, 2024 Category: Chemistry Authors: Jin-Jie Pan Hao-Tian Zhu Jun Chen Xiao-Qi Ma Ai-Jun Wang Pei-Xin Yuan Jiu-Ju Feng Source Type: research
