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Article ; Online: Unraveling Different Reaction Characteristics of Alkoxy Radicals in a Co(II)-Activated Peracetic Acid System Based on Dynamic Analysis of Electron Distribution.

Zhang, Huixuan / Chen, Long / Du, Penghui / Li, Fan / Liu, Wen

Environmental science & technology

2024

Abstract: Peracetic acid (PAA)-based advanced oxidation processes (AOPs) have shown broad application prospects in organic wastewater treatment. Alkoxy radicals including ... ...

Abstract	Peracetic acid (PAA)-based advanced oxidation processes (AOPs) have shown broad application prospects in organic wastewater treatment. Alkoxy radicals including CH
Language	English
Publishing date	2024-02-05
Publishing country	United States
Document type	Journal Article
ISSN	1520-5851
ISSN (online)	1520-5851
DOI	10.1021/acs.est.3c07977
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Reassessing the Quantum Yield and Reactivity of Triplet-State Dissolved Organic Matter via Global Kinetic Modeling.

Du, Penghui / Tang, Kexin / Yang, Biwei / Mo, Xiaohan / Wang, Junjian

Environmental science & technology

2024 Volume 58, Issue 13, Page(s) 5856–5865

Abstract: Measuring the quantum yield and reactivity of triplet-state dissolved organic matter ( ...

Abstract	Measuring the quantum yield and reactivity of triplet-state dissolved organic matter (
MeSH term(s)	Dissolved Organic Matter ; Photochemical Processes ; Photochemistry ; Photolysis
Chemical Substances	Dissolved Organic Matter
Language	English
Publishing date	2024-03-22
Publishing country	United States
Document type	Journal Article
ISSN	1520-5851
ISSN (online)	1520-5851
DOI	10.1021/acs.est.4c00214
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Article ; Online: [Determination of 14 perfluoroalkyl substances in Chinese mitten crab by multi-plug filtration cleanup coupled with ultra-performance liquid chromatography-tandem mass spectrometry].

Wang, Xianli / Rao, Qinxiong / Zhang, Qicai / DU, Penghui / Song, Weiguo

Se pu = Chinese journal of chromatography

2023 Volume 41, Issue 12, Page(s) 1095–1105

Abstract: Perfluoroalkyl substances (PFASs) have become a new food-safety problem. Dietary intake is a major pathway of human exposure to PFASs. Chinese mitten crab ( ...

Abstract	Perfluoroalkyl substances (PFASs) have become a new food-safety problem. Dietary intake is a major pathway of human exposure to PFASs. Chinese mitten crab (
MeSH term(s)	Humans ; Tandem Mass Spectrometry ; Chromatography, Liquid ; Sodium Chloride/analysis ; Methanol ; Nanotubes, Carbon/analysis ; China ; Fluorocarbons/analysis ; Sulfonic Acids/analysis ; Acetonitriles ; Chromatography, High Pressure Liquid ; Solid Phase Extraction
Chemical Substances	perfluoroundecanoic acid ; ammonium acetate (RRE756S6Q2) ; formic acid (0YIW783RG1) ; Sodium Chloride (451W47IQ8X) ; Methanol (Y4S76JWI15) ; Nanotubes, Carbon ; Fluorocarbons ; perfluorotetradecanoic acid ; perfluorooctanoic acid (947VD76D3L) ; perfluorooctane (6P60ZBK0QL) ; perfluoro-n-nonanoic acid (375-95-1) ; Sulfonic Acids ; Acetonitriles
Language	Chinese
Publishing date	2023-12-13
Publishing country	China
Document type	English Abstract ; Journal Article
ISSN	1872-2059
ISSN (online)	1872-2059
DOI	10.3724/SP.J.1123.2023.07017
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Article ; Online: Photo-transformation of wastewater effluent organic matter reduces the formation potential and toxicity of chlorinated disinfection byproducts.

Du, Penghui / Chen, Guoping / Zhang, Peng / Yang, Biwei / Wang, Junjian

Ecotoxicology and environmental safety

2023 Volume 265, Page(s) 115515

Abstract: Sunlight exposure can degrade and transform discharged wastewater effluent organic matter (EfOM) in aquatic systems, potentially enhancing the feasibility of reusing wastewater for drinking purposes. However, there remains a lack of comprehensive ... ...

Abstract	Sunlight exposure can degrade and transform discharged wastewater effluent organic matter (EfOM) in aquatic systems, potentially enhancing the feasibility of reusing wastewater for drinking purposes. However, there remains a lack of comprehensive understanding regarding the sunlight-induced changes in the molecular-level composition, characteristics, and chlorine reactivity of EfOM. Herein, we investigated the impact of sunlight on the optical properties, chemical composition, and formation of disinfection byproducts of EfOM using multiple spectroscopic analyses, high-resolution mass spectrometry, chlorination experiments, and in vitro bioassays. Upon natural sunlight exposure, we observed significant decreases in ultraviolet-visible absorbance and fluorescence intensity of EfOM, indicating the destruction of chromophores and fluorophores. Photolysis generally yields products with lower molecular weight and aromaticity, and with higher saturation and oxidation levels. Moreover, a shift within the EfOM from condensed aromatic-like compounds to tannin-like components was observed. Furthermore, sunlight exposure reduced the reactivity of EfOM toward the formation of trihalomethanes and haloacetonitriles during chlorination, while there was a slight increase in the specific formation potential of haloketones. Importantly, the disinfection byproducts resulting from chlorination of the irradiated EfOM exhibited reduced microtoxicity. Overall, this study provides new insights into alterations in EfOM under sunlight exposure and aids in predicting the health risks of effluent discharge in water environments.
MeSH term(s)	Disinfection/methods ; Wastewater ; Water Pollutants, Chemical/toxicity ; Water Pollutants, Chemical/analysis ; Halogenation ; Chlorine/analysis ; Water Purification
Chemical Substances	Wastewater ; Water Pollutants, Chemical ; Chlorine (4R7X1O2820)
Language	English
Publishing date	2023-09-28
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	436536-7
ISSN	1090-2414 ; 0147-6513
ISSN (online)	1090-2414
ISSN	0147-6513
DOI	10.1016/j.ecoenv.2023.115515
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Zs.A 1418: Show issues

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bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Simultaneous Fractionation, Desalination, and Dye Removal of Dye/Salt Mixtures by Carbon Cloth-Modified Flow-electrode Capacitive Deionization.

Tang, Kexin / Zheng, Han / Du, Penghui / Zhou, Kun

Environmental science & technology

2022 Volume 56, Issue 12, Page(s) 8885–8896

Abstract: The critical challenges of using electromembrane processes [e.g., electrodialysis and flow-electrode capacitive deionization (FCDI)] to recycle resources (e.g., water, salts, and organic compounds) from wastewater are the fractionation of dissolved ionic ...

Abstract	The critical challenges of using electromembrane processes [e.g., electrodialysis and flow-electrode capacitive deionization (FCDI)] to recycle resources (e.g., water, salts, and organic compounds) from wastewater are the fractionation of dissolved ionic matter, the removal/recovery of organic components during desalination, and membrane antifouling. This study realized the simultaneous fractionation, desalination, and dye removal/recovery (FDR) treatment of dye/salt mixtures through a simple but effective approach, that is, using a carbon cloth-modified FCDI (CC-FCDI) unit, in which the carbon cloth layer was attached to the surface of each ion-exchange membrane (IEM). The IEMs and carbon-based flow-electrodes were responsible for the fractionation and desalination of dye and salt ions, while the carbon cloth layers contributed to the active membrane antifouling and dye removal/recovery by the electrosorption mechanism. Attributed to such features, the CC-FCDI unit accomplished the effective FDR treatment of dye/salt mixtures with wide ranges of salt and dye concentrations (5-20 g L
MeSH term(s)	Adsorption ; Carbon/chemistry ; Coloring Agents ; Electrodes ; Ions ; Sodium Chloride ; Sodium Chloride, Dietary ; Waste Water ; Water Purification
Chemical Substances	Coloring Agents ; Ions ; Sodium Chloride, Dietary ; Waste Water ; Sodium Chloride (451W47IQ8X) ; Carbon (7440-44-0)
Language	English
Publishing date	2022-06-06
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1520-5851
ISSN (online)	1520-5851
DOI	10.1021/acs.est.2c00982
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Simultaneous Fractionation, Desalination, and Dye Removal of Dye/Salt Mixtures by Carbon Cloth-Modified Flow-electrode Capacitive Deionization

Tang, Kexin / Zheng, Han / Du, Penghui / Zhou, Kun

Environmental science & technology. 2022 June 06, v. 56, no. 12

2022

Abstract	The critical challenges of using electromembrane processes [e.g., electrodialysis and flow-electrode capacitive deionization (FCDI)] to recycle resources (e.g., water, salts, and organic compounds) from wastewater are the fractionation of dissolved ionic matter, the removal/recovery of organic components during desalination, and membrane antifouling. This study realized the simultaneous fractionation, desalination, and dye removal/recovery (FDR) treatment of dye/salt mixtures through a simple but effective approach, that is, using a carbon cloth-modified FCDI (CC-FCDI) unit, in which the carbon cloth layer was attached to the surface of each ion-exchange membrane (IEM). The IEMs and carbon-based flow-electrodes were responsible for the fractionation and desalination of dye and salt ions, while the carbon cloth layers contributed to the active membrane antifouling and dye removal/recovery by the electrosorption mechanism. Attributed to such features, the CC-FCDI unit accomplished the effective FDR treatment of dye/salt mixtures with wide ranges of salt and dye concentrations (5–20 g L–¹ NaCl and 200–800 ppm methylene blue) and different dye components (cationic and anionic dyes) under various applied voltages (1.2–3.2 V). Moreover, the active membrane antifouling by virtue of the carbon cloth facilitated the excellent and sustainable FDR performance of CC-FCDI. The removal/recovery of dyes from the carbon cloth strongly depends on the characteristics of dye molecules, the surface properties of the carbon cloth, and the local pH at the IEM/CC interfaces. This study sheds light on the strategies of using multifunctional layer-modified FCDI units to reclaim resources from various high-salinity organic wastewater.
Keywords	carbon ; deionization ; desalination ; electrodialysis ; fractionation ; ion-exchange membranes ; methylene blue ; pH ; wastewater
Language	English
Dates of publication	2022-0606
Size	p. 8885-8896.
Publishing place	American Chemical Society
Document type	Article
ISSN	1520-5851
DOI	10.1021/acs.est.2c00982
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Nucleus-Aware Self-Supervised Pretraining Using Unpaired Image-to-Image Translation for Histopathology Images.

Song, Zhiyun / Du, Penghui / Yan, Junpeng / Li, Kailu / Shou, Jianzhong / Lai, Maode / Fan, Yubo / Xu, Yan

IEEE transactions on medical imaging

2024 Volume 43, Issue 1, Page(s) 459–472

Abstract: Self-supervised pretraining attempts to enhance model performance by obtaining effective features from unlabeled data, and has demonstrated its effectiveness in the field of histopathology images. Despite its success, few works concentrate on the ... ...

Abstract	Self-supervised pretraining attempts to enhance model performance by obtaining effective features from unlabeled data, and has demonstrated its effectiveness in the field of histopathology images. Despite its success, few works concentrate on the extraction of nucleus-level information, which is essential for pathologic analysis. In this work, we propose a novel nucleus-aware self-supervised pretraining framework for histopathology images. The framework aims to capture the nuclear morphology and distribution information through unpaired image-to-image translation between histopathology images and pseudo mask images. The generation process is modulated by both conditional and stochastic style representations, ensuring the reality and diversity of the generated histopathology images for pretraining. Further, an instance segmentation guided strategy is employed to capture instance-level information. The experiments on 7 datasets show that the proposed pretraining method outperforms supervised ones on Kather classification, multiple instance learning, and 5 dense-prediction tasks with the transfer learning protocol, and yields superior results than other self-supervised approaches on 8 semi-supervised tasks. Our project is publicly available at https://github.com/zhiyuns/UNITPathSSL.
Language	English
Publishing date	2024-01-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	622531-7
ISSN	1558-254X ; 0278-0062
ISSN (online)	1558-254X
ISSN	0278-0062
DOI	10.1109/TMI.2023.3309971
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Zs.A 2546: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Hydrogen atom abstraction mechanism for organic compound oxidation by acetylperoxyl radical in Co(II)/peracetic acid activation system.

Du, Penghui / Wang, Junjian / Sun, Guodong / Chen, Long / Liu, Wen

Water research

2022 Volume 212, Page(s) 118113

Abstract: Peracetic acid (PAA) has been widely used as an alternative disinfectant in wastewater treatment, and PAA-based advanced oxidation processes (AOPs) have drawn increasing attention recently. Among the generated reactive species after PAA activation, ... ...

Abstract	Peracetic acid (PAA) has been widely used as an alternative disinfectant in wastewater treatment, and PAA-based advanced oxidation processes (AOPs) have drawn increasing attention recently. Among the generated reactive species after PAA activation, acetylperoxyl radical (CH
MeSH term(s)	Hydrogen ; Hydrogen Peroxide ; Oxidation-Reduction ; Peracetic Acid ; Water Pollutants, Chemical/analysis ; Water Purification
Chemical Substances	Water Pollutants, Chemical ; Hydrogen (7YNJ3PO35Z) ; Hydrogen Peroxide (BBX060AN9V) ; Peracetic Acid (I6KPI2E1HD)
Language	English
Publishing date	2022-01-22
Publishing country	England
Document type	Journal Article
ZDB-ID	202613-2
ISSN	1879-2448 ; 0043-1354
ISSN (online)	1879-2448
ISSN	0043-1354
DOI	10.1016/j.watres.2022.118113
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Bone marrow mesenchymal stem cell-derived exosomal microRNA regulates microglial polarization.

Huang, Xianwei / Liu, Xiong / Zeng, Jiaqi / Du, Penghui / Huang, Xiaodong / Lin, Jiyan

PeerJ

2023 Volume 11, Page(s) e16359

Abstract: Objective: This study aimed to explore the effects of bone marrow mesenchymal stem cell (BMSC)-derived exosomal miR-146a-5p on microglial polarization and the potential underlying mechanisms in oxygen-glucose deprivation (OGD)-exposed microglial cells.!# ...

Abstract	Objective: This study aimed to explore the effects of bone marrow mesenchymal stem cell (BMSC)-derived exosomal miR-146a-5p on microglial polarization and the potential underlying mechanisms in oxygen-glucose deprivation (OGD)-exposed microglial cells. Methods: Exosomes were isolated from BMSCs, and their characteristics were examined. The effects of BMSC-derived exosomes on microglial polarization were investigated in OGD-exposed BV-2 cells. Differentially expressed miRNAs were identified and their biological function was explored using enrichment analyses. The regulatory role of miR-146a-5p in microglial polarization was studied via flow cytometry. Finally, the downstream target gene Traf6 was validated, and the role of the miR-146a-5p/Traf6 axis in modulating microglial polarization was investigated in OGD-exposed BV-2 cells. Results: BMSC-derived exosomes were successfully isolated and characterized. A total of 10 upregulated and 33 downregulated miRNAs were identified. Exosomal treatment resulted in significant changes in microglial polarization markers. miR-146a-5p was found to be significantly downregulated in OGD-exposed microglial cells treated with exosomes. Manipulation of miR-146a-5p expression modulated microglial polarization. Moreover, the miR-146a-5p/Traf6 axis regulated microglial polarization. Conclusion: Our findings demonstrate that BMSC-derived exosomal via miR-146a-5p modulates microglial polarization by targeting Traf6, providing a potential thermal target for the treatment of neurological diseases involving microglial activation.
MeSH term(s)	MicroRNAs/genetics ; Microglia/metabolism ; TNF Receptor-Associated Factor 6/genetics ; Mesenchymal Stem Cells
Chemical Substances	MicroRNAs ; TNF Receptor-Associated Factor 6
Language	English
Publishing date	2023-11-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	2703241-3
ISSN	2167-8359 ; 2167-8359
ISSN (online)	2167-8359
ISSN	2167-8359
DOI	10.7717/peerj.16359
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Dissipation, Bioconcentration and Dietary Risk Assessment of Thiamethoxam and Its Metabolites in

Chen, Shanshan / Zhang, Qicai / Rao, Qinxiong / Wang, Xianli / Du, Penghui / Song, Weiguo

Toxics

2023 Volume 11, Issue 6

Abstract: In order to acquire scientific evidence for the application of thiamethoxam (TMX) ... ...

Abstract	In order to acquire scientific evidence for the application of thiamethoxam (TMX) in
Language	English
Publishing date	2023-06-01
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2733883-6
ISSN	2305-6304 ; 2305-6304
ISSN (online)	2305-6304
ISSN	2305-6304
DOI	10.3390/toxics11060500
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