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Efficient base-free oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over copper-doped

Feng Cheng, Dongwen Guo, Jinhua Lai, Meihui Long, Wenguang Zhao, Xianxiang Liu, Dulin Yin

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 960-968 doi: 10.1007/s11705-020-1999-5

Abstract: 2,5-Furandicarboxylic acid (FDCA) is an important and renewable building block and can serve as an alternativeto terephthalic acid in the production of bio-based degradable plastic.

Keywords： 5-hydroxymethylfurfural     25-furandicarboxylic acid     selective oxidation     Cu-doped MnO2     biomass    

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UV-LED/P25-based photocatalysis for effective degradation of isothiazolone biocide

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1379-x

Abstract:

• UV-LED with shorter wavelength was beneficial for photocatalytic degradation.

Keywords： Degradation     Photocatalytic     LED     CMIT     P25    

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Preface to the CSCST-25 Special Issue

Xiaolei Fan, Jiawei Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 629-631 doi: 10.1007/s11705-019-1903-3

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Changes of phenotype and function of human CD4 CD25 T cells induced by transfection of Foxp3

WU Kui, BI Yutian, WANG Yaoli, WANG Changzheng

Frontiers of Medicine 2008, Volume 2, Issue 4,   Pages 366-369 doi: 10.1007/s11684-008-0070-6

Abstract: Virus-containing supernatant was applied to differentiate CD4CD25 T cells.The expressions of CD25, CD127, CTLA-4 and the proliferation of transfected T cells were examined.The effect of transfected CD4 T cells on the proliferation and cytokine production of CD4CD25 T cellsTransfected T cells inhibited the proliferation of CD4CD25 T cells.This suggested a key role of Foxp3 in the generation of CD4CD25 regulatory T cells.
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Assessing combined toxic effects of tetracycline and P25 titanium dioxide nanoparticles using

Barsha Roy, Khushboo Kadam, Suresh Palamadai Krishnan, Chandrasekaran Natarajan, Amitava Mukherjee

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1298-x

Abstract: Abstract • UVA pre-irradiation to TiO2 NPs enhanced its toxicity toward plant A. cepa. • UVA TiO2 NPs increased intracellular ROS, resulting in more cell damage. • Cell death enhanced cell permeability and increased uptake of NPs. • Being highly toxic (EC50 = 0.097 µmol/L), TC did not increase ROS generation. • Even at a low dose, TC enhanced the toxic potential of TiO2 NPs significantly. Usage of titanium dioxide nanoparticles (TiO2 NPs) and tetracycline (TC) has increased significantly in the present era. This leads to their release and accumulation in the environment. Both the compounds, individually, can have adverse toxic effects on the plants. Their binary mixtures can increase this degree of damage. The present study aimed to evaluate the toxicity of both the contaminants in individual and binary mixtures in Allium cepa. Further, the toxicity of TiO2 NPs upon UVA pre-irradiation was also measured. Results showed that UVA pre-irradiated NPs (UVA-TiO2 NPs) had a significant decrease in cell viability than their non-irradiated counterparts (NI-TiO2), denoting an increase in photocatalytic activity upon UVA pre-irradiation. Very low concentrations of TC (EC10 = 0.016 µmol/L) mixed with TiO2 NPs significantly increased the toxicity for both UVA-TiO2 and NI-TiO2 NPs. Intracellular ROS generation was significantly high for UVA-TiO2 NPs. However, TC did not have any effects on ROS production. Both the compounds exhibited genotoxic potential in A. cepa. Different chromosomal abnormalities like anaphase bridges, telophase bridges, laggard chromosomes, binucleate cells, etc. were observed. The binary mixture of UVA-TiO2 NPs and TC showed the highest chromosomal aberrations (64.0%±1.26%) than the mixture with NI-TiO2 or the individual contaminants. This decreased significantly after recovery (46.8%±1.92%), denoting the self-repair processes. This study proved that UVA-TiO2 NPs were more toxic and could be enhanced further when mixed with a sub-lethal concentration of TC. This work will help to assess the risk of both compounds in the environment.

Keywords： Binary toxicity     Cell viability     Mitotic index     Chromosomal aberration     Reactive oxygen species     Nanoparticles internalization    

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Biological features of intrahepatic CD4+CD25+ T cells in the naturally tolerance of rat liver transplantation

LU Ling, ZHANG Feng, PU Liyong, YAO Aihua, YU Yue, SUN Beicheng, LI Guoqiang, WANG Xuehao

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 373-376 doi: 10.1007/s11684-007-0072-9

Abstract: The biological features of intrahepatic CD4CD25 T regulatory cells in the naturally tolerance of ratThe proportion of intrahepatic CD4CD25 T cells from three groups was determined by flow cytometry (FCMThe purity of CD4CD25 T cells sorted by MACS was 86%–93%.The CD4CD25 T cells could specifically express the Foxp3 gene compared with CD4CD25 T cells. , the spleenCD4CD25 Tr cells could suppress the proliferation of CD4CD25 T cells, but the inhibition was reversed

Keywords： magnetic     LEW-to-DA     effector     MACS     cytometry    

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1.3-μm 4×25-Gb/s hybrid integrated TOSA and ROSA Special Feature on Optoelectronic Devices and Inte

Yu LIU, Hao-tian BAO, Yi-ming ZHANG, Zhi-ke ZHANG, Yun-shan ZHANG, Xiang-fei CHEN, Jun LU, Yue-chun SHI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 4,   Pages 490-497 doi: 10.1631/FITEE.1800371

Abstract:

The design and fabrication of a compact and low-cost 4×25-Gb/s transmitter optical sub-assembly (TOSA

Keywords： Reconstruction equivalent chirp     Arrayed waveguide grating     Transmitter optical subassembly     Hybrid integrated    

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Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1198-1210 doi: 10.1007/s11705-021-2133-z

Abstract: Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology wereThe sulfonic acid functionalized mesoporous silica catalysts of spherical shape and the cube shape werecatalytic biodiesel production reaction over the catalysts were studied by esterification of free fatty acid, oleic acid with methanol.The effect of various reaction parameters such as catalyst concentration, acid/alcohol molar ratio, catalyst

Keywords： solid acid catalyst     mesoporous silica     sulfonic acid     biodiesel     esterification     oleic acid    

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Amino acid promoted hydrogen battery system using Mn-pincer complex for reversible CO hydrogenation toformic acid

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 697-699 doi: 10.1007/s11708-022-0843-7

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Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 784-794 doi: 10.1007/s11705-022-2278-4

Abstract: biocatalysts; however, it is limited by the conditions of metal–organic framework synthesis and its acid-baseHerein, a biocatalytic platform with improved acid-base stability was constructed via a one-pot methodusing bismuth-ellagic acid as the carrier.Bismuth-ellagic acid is a green phenol-based metal–organic framework whose organic precursor is extractedacid was enhanced, which remained stable over a wide pH range (2–12) and achieved multiple recycling

Keywords： bismuth-ellagic acid     in situ encapsulation     enzyme@MOF biocomposites    

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Discovery of novel ursolic acid derivatives as effective antimicrobial agents through a ROS-mediated

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2101-2113 doi: 10.1007/s11705-023-2361-5

Abstract: In this study, we prepared three series of ursolic acid derivatives and assessed their antibacterialredox system of phytopathogenic bacteria, further demonstrating the unprecedented potential of ursolic acid

Keywords： ursolic acid     antibacterial activities     reactive oxygen species     apoptosis    

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Synergistic scale inhibition of polyaspartic acid composite with magnetic field

LIU Zhenfa, WANG Yanji, GAO Yuhua, ZHANG Lihui

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 261-265 doi: 10.1007/s11705-007-0047-z

Abstract: Polyaspartic acid (PASP) composite, a scale inhibitor, was prepared from PASP, itaconic acid–acrylicacid–acrylic ester (IA-AA-AE) terpolymer and 2-phosphonobutane- 1,2,4-tricarboxylic acid (PBTCA).

Keywords： synergism     magnetic     PBTCA     dynamic     acid–acrylic acid–acrylic    

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Abiotic association of phthalic acid esters with humic acid of a sludge landfill

Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 778-783 doi: 10.1007/s11783-012-0434-7

Abstract: The abiotic association between phthalic acid esters (PAEs) and humic substances (HS) in sludge landfillthe abiotic association of two abundant PAEs (diethyl phthalate and di- -butyl phthalate) with humic acid

Keywords： abiotic association     phthalic acid esters (PAEs)     humic acid     sludge     landfill    

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New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11783-024-1786-5

Abstract:

● The historical development of free nitrous acid (FNA) technologies

Keywords： Free nitrous acid     Acid-tolerant ammonia oxidizer     In situ generation     Wastewater management    

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Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1751-1760 doi: 10.1007/s11705-022-2211-x

Abstract: Poly-γ-glutamic acid is an extracellular polymeric substance with various applications owing toHowever, the ability of natural strains to produce poly-γ-glutamic acid is low.licheniformis CGMCC 2876, and a mutant strain M32 with an 11% increase in poly-γ-glutamic acidplipastatin synthase subunit C and glutamate, which might contribute to the higher poly-γ-glutamic acidThe maximum poly-γ-glutamic acid yield of 14.08 g·L–1 was finally reached with 30 g

Keywords： ARTP mutagenesis     Bacillus licheniformis     poly-γ-glutamic acid     metabolomics    

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Title Author Date Type Operation

Efficient base-free oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over copper-doped

Feng Cheng, Dongwen Guo, Jinhua Lai, Meihui Long, Wenguang Zhao, Xianxiang Liu, Dulin Yin

Journal Article

UV-LED/P25-based photocatalysis for effective degradation of isothiazolone biocide

Journal Article

Preface to the CSCST-25 Special Issue

Xiaolei Fan, Jiawei Wang

Journal Article

Changes of phenotype and function of human CD4 CD25 T cells induced by transfection of Foxp3

WU Kui, BI Yutian, WANG Yaoli, WANG Changzheng

Journal Article

Assessing combined toxic effects of tetracycline and P25 titanium dioxide nanoparticles using

Barsha Roy, Khushboo Kadam, Suresh Palamadai Krishnan, Chandrasekaran Natarajan, Amitava Mukherjee

Journal Article

Biological features of intrahepatic CD4+CD25+ T cells in the naturally tolerance of rat liver transplantation

LU Ling, ZHANG Feng, PU Liyong, YAO Aihua, YU Yue, SUN Beicheng, LI Guoqiang, WANG Xuehao

Journal Article

1.3-μm 4×25-Gb/s hybrid integrated TOSA and ROSA

Yu LIU, Hao-tian BAO, Yi-ming ZHANG, Zhi-ke ZHANG, Yun-shan ZHANG, Xiang-fei CHEN, Jun LU, Yue-chun SHI

Journal Article

Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Journal Article

Amino acid promoted hydrogen battery system using Mn-pincer complex for reversible CO hydrogenation toformic acid

Journal Article

Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Journal Article

Discovery of novel ursolic acid derivatives as effective antimicrobial agents through a ROS-mediated

Journal Article

Synergistic scale inhibition of polyaspartic acid composite with magnetic field

LIU Zhenfa, WANG Yanji, GAO Yuhua, ZHANG Lihui

Journal Article

Abiotic association of phthalic acid esters with humic acid of a sludge landfill

Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO

Journal Article

New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Journal Article

Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Journal Article