Journal of The Chinese Chemical Society最新文献

{"title":"Effect of substituents on mutual induced-fit process, responsible for effective hydrogen-bonded capsule formation","authors":"Sarvjeet Kaur,&nbsp;M. M. Lee,&nbsp;Shih-Sheng Sun,&nbsp;Ashutosh S. Singh","doi":"10.1002/jccs.202400140","DOIUrl":"10.1002/jccs.202400140","url":null,"abstract":"<p>Molecular cavities formed by π-conjugated component(s) generally, tend to collapse in the absence of guest molecule(s) especially in the solution-state, because of strong π•••π interactions between molecular components. Recently, we have explored the importance of mutual induced-fit effect to sort out this issue. In the present report, we have shown the role of substituents on the effectiveness of mutual induced-fit process in an artificial system.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141944778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A versatile precursor for one-pot synthesis of novel azo-thiazole and thiazole scaffolds as prospective antimicrobial and antioxidant agents","authors":"Zahra M. Alamshany,&nbsp;Nada Y. Tashkandi,&nbsp;Ismail M. M. Othman","doi":"10.1002/jccs.202400173","DOIUrl":"10.1002/jccs.202400173","url":null,"abstract":"<p>In this study, we present a simple method for preparing a new series of thiazoles with excellent isolated yields. To synthesize the target thiazole scaffolds, a straightforward one-pot procedure was developed including an amine-mediated reaction of isoxazolethiazolidin-4-one derivative, thiosemicarbazide, and appropriate hydrazonyl chlorides. The reaction conditions for this one-pot protocol were optimized by experimenting with different solvents and amines. The best results were achieved by conducting the reaction in dioxane with triethylamine at 100°C for 5 h. The structures of the desired products were proved by different elemental analyses and spectral data. Additionally, the antimicrobial efficacy of all target derivatives was assessed against various types of microorganisms. The results observed indicated that the antimicrobial activity of the thiosemicarbazone derivative <b>2</b> was the strongest activity among the new series, with MIC values ranging from 0.03 ± 0.01 to 0.98 ± 0.15 μg/mL. Moreover, antioxidant evaluations were conducted on all the desired targets, using ascorbic acid as a reference drug. Significantly, derivatives <b>2</b> and <b>10</b> demonstrated the most promising antioxidant inhibitory effects. Additionally, further toxicity studies were performed on the most active novel compounds, revealing their best drug-like properties and varying toxicity risks in humans.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective colorimetric detection of inorganic arsenic (iAsIII) using homocysteine-modified gold nanoparticles","authors":"Wei-Bin Tseng,&nbsp;Chien-Er Huang,&nbsp;Huan-Tsung Chang","doi":"10.1002/jccs.202400133","DOIUrl":"10.1002/jccs.202400133","url":null,"abstract":"<p>Arsenic contamination in environmental waters poses global health and environmental risks. This study addresses the urgent need for rapid, selective, and sensitive detection of inorganic arsenic (iAs^III) in environmental samples. Leveraging the unique properties of gold nanoparticles (AuNPs) and the selective binding affinity of homocysteine (Hcy), we developed a novel colorimetric sensor for iAs^III detection. Our investigation elucidates the mechanism by which Hcy modifies AuNPs, enabling the selective detection of iAs^III ions through chelation between amine and carboxyl groups, primarily with the predominant species H₂AsO₃⁻ at pH 12.0. Our sensor achieves high selectivity (&gt;10-fold) for iAs^III amid various interfering ions commonly found in environmental samples. Furthermore, we demonstrate exceptional sensitivity in detecting iAs^III, with a low limit of detection (LOD) of 67 nM, aligning with regulatory standards for arsenic concentration in drinking water. The selectivity and sensitivity of our sensor were validated through experiments with various metal ions and real water samples. In conclusion, our study presents a comprehensive understanding of the mechanism, selectivity, and sensitivity of Hcy-modified AuNPs in detecting iAs^III, offering a versatile nanosensor platform with significant implications for environmental monitoring and public health.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Experimental study on synchrotron radiation photoionization of secondary organic aerosol derived from styrene ozonolysis”","authors":"","doi":"10.1002/jccs.202401004","DOIUrl":"10.1002/jccs.202401004","url":null,"abstract":"&lt;p&gt;\u0000 &lt;span&gt;M. -Q. Huang&lt;/span&gt;, &lt;span&gt;H. -H. Wang&lt;/span&gt;, &lt;span&gt;X. -B. Shan&lt;/span&gt;, &lt;span&gt;L.-S. Sheng&lt;/span&gt;, &lt;span&gt;C.-J. Hu&lt;/span&gt;, &lt;span&gt;X. -J. Gu&lt;/span&gt;, &lt;span&gt;W. -J. Zhang&lt;/span&gt;\u0000 &lt;/p&gt;&lt;p&gt;&lt;i&gt;J. Chin. Chem. Soc&lt;/i&gt;. &lt;b&gt;2023&lt;/b&gt;, &lt;i&gt;70&lt;/i&gt;, 938&lt;/p&gt;&lt;p&gt;https://doi.org/10.1002/jccs.202200557&lt;/p&gt;&lt;p&gt;In fact, photoionization mass spectra of styrene particles are obtained at under synchrotron radiation of 15.0, 12.5, and 10.0 eV. Due to our carelessness, the synchrotron radiation energy was mistakenly written as 15.0, 12.5, and 10.5 eV.&lt;/p&gt;&lt;p&gt;In this correction, we present the photoionization mass spectra of styrene particles with synchrotron radiation photon energies of 10.0, 12.5, and 15.0 eV, respectively. Meanwhile, the photon energy of synchrotron radiation in the text is modified. The main conclusions of the original work remain unaffected by the corrections. The corrections are as follows.&lt;/p&gt;&lt;p&gt;The VUV-PIMS in U14-A of the Hefei National Synchrotron Radiation Laboratory is used to detect styrene particles in real-time.&lt;/p&gt;&lt;p&gt;&lt;i&gt;is replaced with&lt;/i&gt;&lt;/p&gt;&lt;p&gt;The synchrotron photon energy provided by U14-A is ranged from 8 to 16 eV. While photon energy at 10.5 eV is generally used to measure the photoionization mass spectrum of organic compounds in our previous studies.&lt;/p&gt;&lt;p&gt;&lt;i&gt;is replaced with&lt;/i&gt;&lt;/p&gt;&lt;p&gt;photon energies of 10.5, 13.0, and 15.5 eV are selected successively in an increment of 2.5 eV for the measurement of styrene particles.&lt;/p&gt;&lt;p&gt;&lt;i&gt;is replaced with&lt;/i&gt;&lt;/p&gt;&lt;p&gt;During the detection, the energy of the synchrotron radiation photon is 10.5 eV.&lt;/p&gt;&lt;p&gt;&lt;i&gt;is replaced with&lt;/i&gt;&lt;/p&gt;&lt;p&gt;Figure 3 shows the photoionization mass spectra of styrene particles with synchrotron radiation photon energies of 10.5, 13.0, and 15.5 eV, respectively. The molecular ion (C&lt;sub&gt;8&lt;/sub&gt;H&lt;sub&gt;8&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;, m/z = 104) and protonated molecular ion peak (C&lt;sub&gt;8&lt;/sub&gt;H&lt;sub&gt;9&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;, m/z = 105) of styrene are detected when the photon energy is 10.5 eV.&lt;/p&gt;&lt;p&gt;&lt;i&gt;is replaced with&lt;/i&gt;&lt;/p&gt;&lt;p&gt;When the photon energy is 13.0 eV, fragment peaks with m/z = 103 and m/z = 77 are detected. When the photon energy is 15.5 eV, the intensity of the peaks with m/z = 103 and m/z = 77 increases significantly. According to the structure of the styrene molecule, the peaks of m/z = 103 and m/z = 77 may be the fragmentation peaks generated by photodissociation of the hydrogen atom and vinyl group from the molecular ion peak.&lt;/p&gt;&lt;p&gt;&lt;i&gt;is replaced with&lt;/i&gt;&lt;/p&gt;&lt;p&gt;However, photoionization efficiency curve (PIE) of styrene molecular ion (C&lt;sub&gt;8&lt;/sub&gt;H&lt;sub&gt;8&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;) shown in Figure 4 is the same as the PIE figure obtained by Kobayashi et al.(Kobayashi T., Phys. Lett. A 1978, 69, 105.)&lt;/p&gt;&lt;p&gt;Figure 4 displays the photoionization efficiency curve of the styrene molecular ion (C&lt;sub&gt;8&lt;/sub&gt;H&lt;sub&gt;8&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;). There is an obvious threshold at 8.46 eV, and the ionization potential of the styrene molecule (IP(C&lt;sub&gt;8&lt;/sub&gt;H&lt;sub&gt;8&lt;/sub&gt;&lt;","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jccs.202401004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141873199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Covalent organic frameworks and metal–organic frameworks for sustainable adsorptive removal/extraction of dirty dozen chemicals: A review","authors":"Stephen Sunday Emmanuel,&nbsp;Favour Chizoba Aniekezie,&nbsp;Ademidun Adeola Adesibikan","doi":"10.1002/jccs.202400203","DOIUrl":"10.1002/jccs.202400203","url":null,"abstract":"<p>Dirty dozen chemicals (DDCs) are a group of 12 extremely toxic chemicals that were recognized at the Stockholm convention in 2001 for their severe impact on the ecosystem and human health. Despite the embargo and restraint placed on DDCs usage, these chemicals continue to find their way into the ecosystem because they are still secretly or openly applied by many nations, especially in African regions. Moreover, DDCs can still be perceived where they have been employed previously before the Stockholm convention treaty due to their persistent profile. This study aimed to critically review original works directed toward the removal of various dirty dozen chemicals using covalent and metal–organic frameworks (COFs and MOFs). Specifically, in this study, various COFs/MOFs and their composites with remarkably tailored adsorptive profiles are evaluated for their adsorption efficiency for different DDCs. In addition, the effect of various operating parameters that are of importance to environmentalists and various stakeholders for optimization purposes was empirically discussed. This review also fills knowledge vacuums about the COF/MOF-DDCs adsorption process, offers insights into their reusability potential, fundamental mechanism, isotherm, and kinetic modeling, and offers a framework for future studies. Findings from this study revealed that COF and MOF have high DDC removal capacity and reusability potential attributed to their admirable porosity and the existence of a plethora of oxygen-rich functional groups that allow for better interactions with DDCs through chelation, halogen bonding, H-bonding, and π-π interactions and stacking. This points to the upscaling potential of this remediation technique. Future researchers need to direct more efforts to the use of density functional theory for mechanism interpretation, exploration of hybrid technology, cost analysis, scalability, isotherm, thermodynamics, adsorption, and desorption kinetic modeling.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141773969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative proteomics analysis of female fibromyalgia and osteoarthritis using data-independent acquisition sequential window acquisition of all theoretical mass spectra-based mass spectrometry","authors":"Cheng-Yu Kuo,&nbsp;Kuo-Tung Tang,&nbsp;Wei-Chen Wang,&nbsp;Yi-Feng Zheng,&nbsp;Yi-Ling Wu,&nbsp;Chih-Jui Chang,&nbsp;Chien-Chen Lai","doi":"10.1002/jccs.202400099","DOIUrl":"10.1002/jccs.202400099","url":null,"abstract":"<p>Fibromyalgia (FM) is a widespread muscle pain disorder that primarily affects females. Osteoarthritis (OA) is another common chronic condition. This study utilized sequential window acquisition of all theoretical mass spectra (SWATH)-based proteomic analysis on the urine of patients with FM and OA. The study identified 54 differentially expressed proteins (DEPs) in the FM group compared to the healthy control (HC) group; 17 DEPs in the OA group compared to the HC group; and 47 DEPs in the FM group compared to the OA group, with a <i>p</i>-value &lt;0.05 and a fold change &gt;1.5 or &lt;0.67. The DEPs in both FM and OA groups were primarily involved in pathways related to coagulation and the complement system, as well as serotonin, dopamine, glutamate pathways, and acute phase reactions. The study suggests that FM and OA induce inflammatory reactions, significantly altering the expression of acute phase proteins and notably decreasing the expression of GNB2. This distinction between health and disease, and the differentiation between FM and OA, is facilitated through the coagulation and complement systems, with SERPING1 and EPCR being key markers. Through these pathways, a better understanding of the impact of FM and OA on the human proteome is achieved.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141773970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extraction of genomic DNA from wild boar (Sus scrofa) muscle tissue using hydrophobic magnetic deep eutectic solvents","authors":"Xingchen He,&nbsp;Yihan Ma,&nbsp;Hongyu Wang,&nbsp;Yani Ma,&nbsp;Qian Li,&nbsp;Xin Tang,&nbsp;Xiaoyang Mo,&nbsp;Xueqin Ding","doi":"10.1002/jccs.202400096","DOIUrl":"10.1002/jccs.202400096","url":null,"abstract":"<p>Extraction of high-quality genomic DNA from wild boar tissue is of great significance for the study of its genetic information, population quantity, and distribution. In this work, a hydrophobic magnetic deep eutectic solvent (HMDES) was synthesized. Based on the HMDES, a HMDES-based vortexed extraction method was developed for extracting genomic DNA from wild boar muscle tissue. Compared to the traditional high salt-extraction method, this approach is faster and embraces higher DNA extraction efficiency. Different pretreatment methods before extraction were evaluated. Single-factor experiments were used to optimize the extraction condition, for example, extraction time, temperature, and HMDES volume. After extraction, the DNA can be quickly and easily recovered from the HMDES phase, and the HMDES can be reused. This work provides a simple and environmental-friendly extraction method for DNA extraction from wild boar tissue.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141773971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural characterization of iron azadiethylthiolate complexes: Insights from NMR, crystallography, and ion mobility-mass spectroscopy","authors":"Yu-Chiao Liu,&nbsp;Yi-Chi Ho,&nbsp;Gene-Hsiang Lee,&nbsp;Ming-Hsi Chiang,&nbsp;Mei-Chun Tseng","doi":"10.1002/jccs.202400107","DOIUrl":"10.1002/jccs.202400107","url":null,"abstract":"<p>Fe₃(CO)₁₂ reacted with azadiethylthiols afforded [Fe₂(μ-S(CH₂)₂NR(CH₂)₂S)(CO)₆]₂ (R = ⁿPr, <b>1A</b>; ⁱPr, <b>2A</b>). Structure analysis revealed that <b>1A</b> features the <i>anti</i>-(a,e,a,e) configuration, while its iso-propyl <b>2A</b> adopts the <i>syn</i>-(a,e,a,e) arrangement. NMR measurements at room temperature confirmed this structure, showing distinct signals for 2 NCH₂ and 2 SCH₂ methylene groups. Acid treatment of <b>1</b>–<b>2</b> yielded N-protonated species (<b>1A–H, 2A–H</b>), maintaining the <i>anti</i>-(a,e,a,e) configuration. Isolation of <b>1B–H</b> revealed both the <i>syn</i>-(a,e,e,a) and <i>anti</i>-(a,e,e,a) configuration by X-ray single-crystallography. Protonation of <b>1A–H</b> induced downfield shifts in methylene proton signals, with NH hydrogen recorded at 6.96 ppm. Furthermore, <b>1B–H</b> displays similar NMR behavior, indicating the coexistence of two isomeric molecules of <b>1B–H</b>, <i>syn</i>-(a,e,e,a) and <i>anti</i>-(a,e,e,a), which is consistent with the crystallographic results. Moreover, ion mobility-mass spectrometry (IM-MS) is harnessed for the swift identification and differentiation of these isomeric complexes in solution. By leveraging accurate mass measurements and MS/MS analyses, the molecular formula and constituents are validated. The sample mobility enables straightforward characterization of <b>1A</b>, <b>1B</b>, and <b>2A</b> in relation to their stereo- and regio-configurations, obviating the need for extensive time or sample quantities. Integration of findings from X-ray crystallography, NMR, and IM-MS furnishes precise and comprehensive structural insights into the coordination complexes.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141754093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, characterization, and a comparative study on the catalytic activity of the functionalized magnetic nanoparticles for the green oxidation of sulfides","authors":"Saeed Rayati,&nbsp;Mohammad Mazraeh,&nbsp;Saeedeh Shokoohi,&nbsp;Parinaz Nafarieh,&nbsp;Fatemeh Nejabat","doi":"10.1002/jccs.202400119","DOIUrl":"10.1002/jccs.202400119","url":null,"abstract":"<p>In the following research, <i>meso</i>-tetrakis(4-carboxyphenyl)porphyrinatomanganese (III) acetate (MnTCPP(OAc)) was immobilized onto the surface of two functionalized magnetic nanoparticles (MNPs) with different linker length via amide bond (Fe₃O₄@SiO₂-NH₂-MnTCPP(OAc) (A¹) and Fe₃O₄@SiO₂-NHCO-NH₂-MnTCPP(OAc) (A²)). The prepared catalysts were characterized by standard methods such as: atomic absorption spectroscopy (AAS), Ultra violet-visible (UV-Vis), Fourier-transform infrared (FT-IR), vibrating sample magnetometry (VSM), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) techniques and also the effect of the length of the linker on the catalytic activity of supported magnetic nanohybrids was investigated. The prepared magnetic nano-catalysts with different linker lengths were participated in a comparative study of the clean oxidation of sulfides with urea hydrogen peroxide (UHP) in ethanol. The higher catalytic activity, selectivity and also reusability were achieved in the presence of the catalyst with longer linker length (<i>A</i>²) at ambient temperature. Moreover, the turnover number (TON) of catalytic reactions using A² as catalyst was highly enough to consider the catalyst as an efficient material to oxidize various sulfides. Both A¹ and A² catalysts simply have accomplished 5 runs of recycling without significant decrease in the catalytic activity.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141744816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microdroplet-assisted protein adduct formation and characterization by mass spectrometry","authors":"Chih-Hung Wang,&nbsp;Hung-Hsiang Jen,&nbsp;Fung-Yu Chen,&nbsp;Kang-Yu Liu,&nbsp;Shu-Hui Chen","doi":"10.1002/jccs.202400085","DOIUrl":"10.1002/jccs.202400085","url":null,"abstract":"<p>There have been increasing interests in developing proteomics-based protein adduct detection for monitoring carcinogen exposure risk. Generating adducted protein standards and characterizing the adduction sites by bottom-up proteomics, however, require lengthy adduction and enzymatic digestion. Here we demonstrated that microdroplet can greatly accelerate the catechol estrogen adduction on hemoglobin (Hb) as well as one-pot reaction of adduction and enzyme digestion in millisecond for bottom-up characterization. The adducted Hb generated by microdroplet reaction was characterized to contain one to two catechol estrogens with the β chain of Hb (Hb-β) by online in situ intact measurement of mass spectrometry. The adduction sites were further identified to be C112-Hb-β or C93-Hb-β by microdroplet one-pot or two-step adduction and digestion. These results were consistent with the intact measurement and also same as the bulk or endogenous reaction. This method is expected to be applicable to prepare protein standards adducted by other reactive oxidizing species to greatly save time and sample amount.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141744815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}