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(R)-(+)-1(1-naphthyl)ethylamine 1

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4-oxadiazole 1

Amine transaminase 1

CO2 capture 1

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Trade-off 1

acid chlorides 1

acrylamide 1

activated carbon 1

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Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products in food

Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 3,   Pages 321-329 doi: 10.15302/J-FASE-2017182

Abstract: compounds, but also contributes to the formation of some unpleasant toxic substances including acrylamide, heterocyclicthis review, some recent studies on the impact of dietary polyphenols on the formation of acrylamide, heterocyclic

Keywords： advanced glycation end products     acrylamide     food safety     heterocyclic amine     Maillard reaction     polyphenols    

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Extractive desulfurization of model fuels with a nitrogen-containing heterocyclic ionic liquid

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1735-1742 doi: 10.1007/s11705-022-2167-x

Abstract: A nitrogen-containing ionic liquid was synthesized using an aromatic nitrogen-containing heterocyclic

Keywords： extractive desulfurization     nitrogen-containing heterocyclic ionic liquid     reduced density gradient analysis    

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Reaction and characterization of crosslinking hyperbranched poly (amine-ester) with succine anhydride

XIAO Ling, WEI Xiuzhen, ZHU Baoku

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 355-359 doi: 10.1007/s11705-007-0064-y

Abstract: Basing on hydroxyl terminated hyperbranched poly (amine-ester)s (HPAEs), the cross-linking reactions

Keywords： different cross-linking     amine-ester     temperature     crosslinked     efficient    

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Activated carbons and amine-modified materials for carbon dioxide capture –– a review

Zhenhe CHEN, Shubo DENG, Haoran WEI, Bin WANG, Jun HUANG, Gang YU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 326-340 doi: 10.1007/s11783-013-0510-7

Abstract: In this paper, the attractive adsorbents including activated carbons and amine-modified materials wereFor the amine-modified materials, the physical impregnation and chemical graft of polyethylenimine (PEIreview will be helpful for the fundamental studies and industrial applications of activated carbons and amine-modified

Keywords： adsorption capacity     CO2 capture     activated carbon     amine-impregnated adsorbents    

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Synthesis, insecticidal activities and DFT study of pyrimidin-4-amine derivatives containing the 1,2,4

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1090-1100 doi: 10.1007/s11705-021-2091-5

Abstract: Twenty six novel pyrimidin-4-amine derivatives containing the 1,2,4-oxadiazole motif were synthesized

Keywords： synthesis     pyrimidin-4-amine derivatives     1     2     4-oxadiazole     insecticidal activity     structure-activity    

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Activated carbon-hybridized and amine-modified polyacrylonitrile nanofibers toward ultrahigh and recyclable

Fengli Li, Chuang Chen, Yuda Wang, Wenpeng Li, Guoli Zhou, Haoqin Zhang, Jie Zhang, Jingtao Wang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 984-997 doi: 10.1007/s11705-020-2000-3

Abstract: Herein, the activated carbon-hybridized and amine-modified nanofibers are prepared by integrating activatedThus, the obtained amine-rich porous PAN nanofibers (APAN/AC) readily realized the ultrahigh adsorption284 mg·g for Cr(VI) and 248 mg·g for methyl orange, which were almost 2 and 4 times than that of amine-modified

Keywords： carbon-hybridized and amine-modified nanofibers     polyacrylonitrile     metal ions and dyes     wastewater     adsorption    

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Synthesis of spherical parallel manipulator for dexterous medical task

Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 150-162 doi: 10.1007/s11465-012-0325-4

Abstract:

This paper deals with the design and the analysis of a spherical parallel manipulator (SPM) for a haptic minimally invasive surgery application. First the medical task was characterized with the help of a surgeon who performed a suture technique called anastomosis. A Vicon system was used to capture the motion of the surgeon, which yielded the volume swept by the tool during the anastomosis operation. The identified workspace can be represented by a cone with a half vertex angle of 26°. A multi objective optimization procedure based on genetic algorithms was then carried out to find the optimal SPM. Two criteria were considered, i.e., task workspace and mechanism dexterity. The optimized SPM was then analyzed to determine the error on the orientation of the end effector as a function of the manufacturing errors of the different links of the mechanism.

Keywords： spherical parallel manipulator (SPM)     anastomosis     haptic     motion capture     optimization     workspace     dexterity     genetic algorithm     manufacturing errors    

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Synthesis of a cardanol-amine derivative using an ionic liquid catalyst

Atanu Biswas, Carlucio R. Alves, Maria T. S. Trevisan, Roseane L. E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 425-431 doi: 10.1007/s11705-016-1581-3

Abstract: Cardanol is a biobased raw material derived from cashew nut shell liquid. In order to extend its utility, new derivatives and additional applications are useful. In this work cardanol was first epoxidized, and a novel aniline derivative prepared from it under mild reaction conditions with the help of an ionic liquid catalyst. The reaction chemistry was studied by using nuclear magnetic resonance. The resulting aminohydrin adduct showed antioxidant property and should also be a useful synthon for further reactions. As an example, the aminohydrin was shown to undergo a condensation reaction with formaldehyde to form a prepolymer, which could be further reacted to form thermosetting resins.

Keywords： cardanol     epoxidation     aminohydrin     aniline     ionic liquid     aniline-formaldehyde    

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New nanostructured sorbents for desulfurization of natural gas

Lifeng WANG, Ralph T. YANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 8-19 doi: 10.1007/s11705-014-1411-4

Abstract: Desulfurization of natural gas is achieved commercially by absorption with liquid amine solutions.three types of sorbents: metal-oxide based sorbents, Cu/Ag-based and other commercial sorbents, and amine-graftedfuture developments to further improve these sorbents are suggested, particularly for the most promising amine-grafted

Keywords： desulfurization     natural gas desulfurization     hydrogen sulfide sorbent     amine-silica sorbent    

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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic studies

Majid Peyravi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 673-687 doi: 10.1007/s11705-019-1800-9

Abstract: Adsorptive polyethesulfone (PES) membranes were prepared by intercalation of powder activated carbon (PAC) with and without functionalization. Accordingly, PAC was aminated with 1,5-diamino-2-methylpentane, and the physicochemical properties of the functionalized PAC were analyzed. Intercalation of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membrane (AC-NH ) from 52.6% to 92.5% and from 22.6 nm to 3.5 nm, respectively. The effect of temperature on the performance of the modified membranes was monitored by the flux and chemical oxygen demand (COD) removal of leachate. At ambient temperature, the COD removal of the neat, AC-containing, and AC-NH membranes was 47%, 52%, and 58.5%, respectively. A similar increment was obtained for the membrane flux, which was due to the synergistic effect of the high porosity and large number of hydrophilic functional groups. The experimental leachate adsorption data were analyzed by Langmuir, Freundlich, and Dubinin- Radushkevich isotherm models. For all membranes, the significant thermodynamic parameters ( , , and ) were calculated and compared. The isosteric heat of adsorption was lower than 80 kJ∙mol , indicating that the interaction between the membranes and the leachate is mainly physical, involving weak van der Waals forces.

Keywords： amine functionality     nanoporous membrane     adsorption isotherm     thermodynamic parameters     landfill leachate    

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Pocket Modification of ω-Amine Transaminase AtATA for Overcoming the Trade-Off between Activity Article

Jiaren Cao, Fangfang Fan, Changjiang Lyu, Sheng Hu, Weirui Zhao, Jiaqi Mei, Shuai Qiu, Lehe Mei, Jun Huang

Engineering 2023, Volume 30, Issue 11,   Pages 203-214 doi: 10.1016/j.eng.2023.04.009

Abstract:

Amine transaminases (ATAs) catalyze the asymmetric amination of prochiral ketones or aldehydes to

Keywords： Trade-off     Co-evolution     Amine transaminase     (R)-(+)-1(1-naphthyl)ethylamine    

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The effect of altering crosslinker chemistry during interfacial polymerization on the performance of nanofiltration membranes for desalination, organic, and micropollutants removal

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2025-2036 doi: 10.1007/s11705-023-2356-2

Abstract: The crosslinkers were reacted with an aqueous solution of an aliphatic tetra-amine.The 4A-3P-TPC@PSF/PET membrane exhibited extensive crosslinking with aliphatic linear amine, and cationic

Keywords： acid chlorides     covalent crosslinking     desalination     linear aliphatic amine     micropollutant removal    

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N-Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probes for in vivo cell H2S imaging

Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 64-71 doi: 10.1007/s11705-021-2048-8

Abstract: Heterocyclic compound quinoline and its derivatives exist in natural compounds and have a broad spectrum

Keywords： heterocyclic compound     hydrogen sulfide     ratiometric     mitochondrial targeted    

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Research on the flotation of kaolinite using a series of dodecyl tertiary amines

Cao Xuefeng,Liu Changmiao, Hu Yuehua

Strategic Study of CAE 2011, Volume 13, Issue 1,   Pages 93-97

Abstract: due to the electronic effects and space steric effects of the substituents belonging to N atom in the amine

Keywords： tertiary amine     kaolinite     flotation     electrostatic effect     electronic effect     space steric effect    

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Title Author Date Type Operation

Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products in food

Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG

Journal Article

Extractive desulfurization of model fuels with a nitrogen-containing heterocyclic ionic liquid

Journal Article

Reaction and characterization of crosslinking hyperbranched poly (amine-ester) with succine anhydride

XIAO Ling, WEI Xiuzhen, ZHU Baoku

Journal Article

Activated carbons and amine-modified materials for carbon dioxide capture –– a review

Zhenhe CHEN, Shubo DENG, Haoran WEI, Bin WANG, Jun HUANG, Gang YU

Journal Article

Synthesis, insecticidal activities and DFT study of pyrimidin-4-amine derivatives containing the 1,2,4

Journal Article

Activated carbon-hybridized and amine-modified polyacrylonitrile nanofibers toward ultrahigh and recyclable

Fengli Li, Chuang Chen, Yuda Wang, Wenpeng Li, Guoli Zhou, Haoqin Zhang, Jie Zhang, Jingtao Wang

Journal Article

Synthesis of spherical parallel manipulator for dexterous medical task

Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL

Journal Article

Synthesis of a cardanol-amine derivative using an ionic liquid catalyst

Atanu Biswas, Carlucio R. Alves, Maria T. S. Trevisan, Roseane L. E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng

Journal Article

New nanostructured sorbents for desulfurization of natural gas

Lifeng WANG, Ralph T. YANG

Journal Article

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic studies

Majid Peyravi

Journal Article

Pocket Modification of ω-Amine Transaminase AtATA for Overcoming the Trade-Off between Activity

Jiaren Cao, Fangfang Fan, Changjiang Lyu, Sheng Hu, Weirui Zhao, Jiaqi Mei, Shuai Qiu, Lehe Mei, Jun Huang

Journal Article

The effect of altering crosslinker chemistry during interfacial polymerization on the performance of nanofiltration membranes for desalination, organic, and micropollutants removal

Journal Article

N-Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probes for in vivo cell H2S imaging

Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin

Journal Article

Research on the flotation of kaolinite using a series of dodecyl tertiary amines

Cao Xuefeng,Liu Changmiao, Hu Yuehua

Journal Article