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Portable fluorescence instrument for detecting membrane integrity in membrane bioreactor (MBR)

Frontiers of Environmental Science & Engineering 2024, Volume 18, Issue 2, doi: 10.1007/s11783-024-1783-8

Abstract:

● Double fluorescence peaks model is used to characterize membrane

Keywords： Membrane integrity     Fluorescence spectrum     Portable instrument     Membrane bioreactor    

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Synthesis and fluorescence behavior of 2,5-diphenyl-1,3,4-oxadiazole-containing bismaleimides and bissuccinimides

Xin ZHANG, Zichen LI

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 381-387 doi: 10.1007/s11705-013-1359-9

Abstract: Almost no or very weak fluorescence was observed for these bismaleimides, however, the bissuccinimidesshow a strong fluorescence.by UV-vis absorption and fluorescence emission spectroscopy.-Bissuccinimide displays increasing fluorescence quantum yields with red shifts of 22–24 nm, comparedPolymerizable C=C bonds play a key role in the intramolecular fluorescence quenching.

Keywords： fluorescence     bismaleimide     oxadiazole     succinimide    

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hydrophobic environment triggering reactive fluorescence probe to real-time monitor mitochondrial DNA

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 92-102 doi: 10.1007/s11705-021-2063-9

Abstract: Herein, we constructed an in situ hydrophobic environment-triggering reactive fluorescence probeMeanwhile, MBI-CHO immediately emitted a significative fluorescence signal changes at 437 and 553 nm

Keywords： hydrolysis reaction     mitochondrial DNA damage     in situ hydrophobic environment trigger     fluorescence    

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Carbon dots-based fluorescence sensor for two-photon imaging of pH in diabetic mice

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 298-306 doi: 10.1007/s11705-022-2212-9

Abstract: The carbon dots-based sensor (CA-CDs) exhibited pH-dependent increase in fluorescence intensity and showedNotably, the fluorescence sensor has a reversible response to pH change.

Keywords： carbon dots     two-photon imaging     pH     diabetic mice    

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Cd-tolerant electrochemically active bacteria in MECs toward exotic Cr(VI) based on the sensing of fluorescence

Xia Hou, Liping Huang, Peng Zhou, Hua Xue, Ning Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1057-4

Abstract:

Cell membrane of indigenous Cd-tolerant EAB harbored more cadmium than chromium.

Indigenous Cd-tolerant EAB cytoplasm located more chromium than cadmium.

Simultaneously quantitatively imaging Cd(II) and Cr(III) ions in EAB was achieved.

Current accelerated the harboring of cadmium in EAB at an initial 2 h.

Current directed the accumulation of more chromium in EAB over time.

Keywords： Microbial electrolysis cell     Electrochemically active bacteria     Cd-tolerant bacteria     Cd(II) and Cr(VI)     Fluorescence    

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Synthesis, characterization and fluorescence quenching of conjugated polymer containing triphenylamine

LIU Feng, XIAO Jianhua, REN Weihua, HU Jun, LIU Honglai

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 428-433 doi: 10.1007/s11705-008-0083-3

Abstract: Their applications in the detection of nitro compounds were investigated, and the results show high fluorescenceWhen the concentration of -NT was 21.5 × 10 mol/L, the fluorescence quenching reached 96%.quenchers such as dinitrotoluene (DNT), -nitrobenzoquinone (-BQ) and -nitrotoluene (-NT) for 600 s, its fluorescence

Keywords： detection     different     fluorescence     UV-Vis     end-capped polymer    

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Synthesis and characterization of 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles with two-photon fluorescence

ZHU Xiaoqin, QIAN Ying, LU Zhifeng

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 381-384 doi: 10.1007/s11705-007-0069-6

Abstract: phenyl]-1,3,4-oxadiazoles that exhibit strong two-photon absorption and enhanced two-photon excited fluorescence-conjugated bridging unit can enhance the two-photon absorption and two-photon fluorescence.

Keywords： 2-arylvinyl     trans-vinylene character     effective     fluorescence     push-core-pull-core-push    

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Insight into fluorescence properties of 14 selected toxic single-ring aromatic compounds in water: Experimental

Muhammad Farooq Saleem Khan, Jing Wu, Cheng Cheng, Mona Akbar, Chuanyang Liu, Bo Liu, Jian Shen, Yu Xin

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1219-z

Abstract: The fluorescence peak location of 14 compounds interpreted at protein-like region.The fluorescence excitation-emission matrix (EEMs) spectrophotometry is a useful method to identify organicThis study provides a detailed insight into the fluorescence properties of the 14 selected toxic single-ringThe fluorescence of halogenated benzenes illustrates an increase in the HOMO-LUMO energy gap and a decreaseThe understanding of fluorescence and photophysical properties are of great importance in the identification

Keywords： Fluorescence     Photophysical properties     Effect of the substituent     Toxic aromatic compounds    

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Excitation-emission matrix (EEM) fluorescence spectroscopy for characterization of organic matter in

Jinlan Yu, Kang Xiao, Wenchao Xue, Yue-xiao Shen, Jihua Tan, Shuai Liang, Yanfen Wang, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1210-8

Abstract: • Principles and methods for fluorescence EEM are systematically outlined. • Fluorophore peak/regionThree-dimensional excitation-emission matrix (3D-EEM) fluorescence spectroscopy, a powerful tool forThis paper revisits the principles and methods of fluorescence EEM, and reviews the recent progress inWe systematically introduced the information extracted from EEM by considering the fluorescence peakare summarized for potential use, including quantum yield, Stokes shift, excited energy state, and fluorescence

Keywords： excitation-emission matrix (EEM)     dissolved organic matter (DOM)     membrane bioreactor (MBR)     fluorescence    

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Initial Experience of NIR-II Fluorescence Imaging-Guided Surgery in Foot and Ankle Surgery

Xiaoxiao Fan,Jie Yang,Huwei Ni,Qiming Xia,Xiaolong Liu,Tianxiang Wu,Lin Li,Paras N. Prasad,Chao Liu,Hui Lin,Jun Qian,

Engineering doi: 10.1016/j.eng.2024.04.011

Abstract: This study aimed to explore the application value of NIR-II fluorescence imaging in foot and ankle surgeriesA lab-established NIR-II fluorescence surgical navigation system was developed and used to navigate footimages compared to NIR-I fluorescence images; our result demonstrates that NIR-II imaging could provideUsing the NIR-II fluorescence imaging technique, we observed the ischemic region in the diabetic footWe believe that portable and reliable NIR-II fluorescence imaging equipment and additional functional

Keywords： Second near-infrared fluorescence imaging     Foot and ankle surgeries     Indocyanine green     Imaging-guided surgery    

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Fluorescence detection of phosphate in an aqueous environment by an aluminum-based metal-organic framework

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1594-8

Abstract:

● A novel Al-MOF was successfully synthesized by a facile solvothermal method.

Keywords： Fluorescence     Metal-organic framework     Phosphate     Detection     Al-MOF    

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Probing the redox process of

Rui Lu, Wei Chen, Wen-Wei Li, Guo-Ping Sheng, Lian-Jun Wang, Han-Qing Yu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0905-y

Abstract: The benzoquinone reduction state has a lower fluorescence quantum efficiency.This method can analyze compounds with fluorescence and electrochemical activities.In this work, electrochemical methodology was combined with two fluorescence spectroelectrochemical techniques, cyclic volta- fluorescence spectrometry (CVF) and derivative cyclic volta- fluorescence spectrometryThe fluorescence intensity was found to vary along with the electrochemical oxidation and reduction of

Keywords： p-Benzoquinone     Electrochemistry     Fluorescence     Spectroelectrochemistry     Derivative cyclic voltafluorescence    

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Comparison of masking agents for antimony speciation analysis using hydride generation atomic fluorescence

Jianhong XI,Mengchang HE,Kunpeng WANG,Guizhi ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 970-978 doi: 10.1007/s11783-014-0716-3

Abstract: selective generation of stibine from Sb(III) in a continuous flow system using non-dispersive atomic fluorescenceThe effects of the HCl concentration on the fluorescence intensities of Sb(III) and Sb(V) were investigatedThe results indicated that atomic fluorescence emission due to Sb(V) can constructively interfere withThe effects of the concentrations of the masking agents and of HCl on the fluorescence signals from Sb

Keywords： Sb(III)     Sb(V)     determination     masking agents     hydride generation (HG-AFS)    

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Three-dimensional fluorescence spectral characterization of soil dissolved organic matters in the fluctuating

Fang FANG, Yan YANG, Jinsong GUO, Hong ZHOU, Chuan FU, Zhe LI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 426-434 doi: 10.1007/s11783-010-0264-4

Abstract: Three-dimensional fluorescence spectroscopy was used to investigate the fluorescent properties of soilMost of the soil DOM analyzed in this study was found to contain four fluorescence peaks.Peaks A and C represent humic-like fluorescence, whereas peaks B and D represent tryptophan-like fluorescencePeaks E and F, which represent tyrosine-like fluorescence, only appeared in certain soils.fluorescence groups.

Keywords： water-level-fluctuation zone (WLFZ)     soil     dissolved organic matter (DOM)     three-dimensional fluorescence    

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What have we known so far for fluorescence staining and quantification of microplastics: A tutorial review

Shengdong Liu, Enxiang Shang , Jingnan Liu , Yining Wang , Nanthi Bolan , M.B. Kirkham , Yang Li

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 8-8 doi: 10.1007/s11783-021-1442-2

Abstract: Then the promising and convenient staining procedures and quantification methods for MPs using fluorescenceIn addition, a heating and cooling procedure is recommended to maintain the fluorescence intensity ofAfter staining, a fluorescence microscope is usually used to characterize the morphology, mass, or numberThese fluorescence staining methods have been implemented to study MP abundance, transport, and toxicity
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Title Author Date Type Operation

Portable fluorescence instrument for detecting membrane integrity in membrane bioreactor (MBR)

Journal Article

Synthesis and fluorescence behavior of 2,5-diphenyl-1,3,4-oxadiazole-containing bismaleimides and bissuccinimides

Xin ZHANG, Zichen LI

Journal Article

hydrophobic environment triggering reactive fluorescence probe to real-time monitor mitochondrial DNA

Journal Article

Carbon dots-based fluorescence sensor for two-photon imaging of pH in diabetic mice

Journal Article

Cd-tolerant electrochemically active bacteria in MECs toward exotic Cr(VI) based on the sensing of fluorescence

Xia Hou, Liping Huang, Peng Zhou, Hua Xue, Ning Li

Journal Article

Synthesis, characterization and fluorescence quenching of conjugated polymer containing triphenylamine

LIU Feng, XIAO Jianhua, REN Weihua, HU Jun, LIU Honglai

Journal Article

Synthesis and characterization of 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles with two-photon fluorescence

ZHU Xiaoqin, QIAN Ying, LU Zhifeng

Journal Article

Insight into fluorescence properties of 14 selected toxic single-ring aromatic compounds in water: Experimental

Muhammad Farooq Saleem Khan, Jing Wu, Cheng Cheng, Mona Akbar, Chuanyang Liu, Bo Liu, Jian Shen, Yu Xin

Journal Article

Excitation-emission matrix (EEM) fluorescence spectroscopy for characterization of organic matter in

Jinlan Yu, Kang Xiao, Wenchao Xue, Yue-xiao Shen, Jihua Tan, Shuai Liang, Yanfen Wang, Xia Huang

Journal Article

Initial Experience of NIR-II Fluorescence Imaging-Guided Surgery in Foot and Ankle Surgery

Xiaoxiao Fan,Jie Yang,Huwei Ni,Qiming Xia,Xiaolong Liu,Tianxiang Wu,Lin Li,Paras N. Prasad,Chao Liu,Hui Lin,Jun Qian,

Journal Article

Fluorescence detection of phosphate in an aqueous environment by an aluminum-based metal-organic framework

Journal Article

Probing the redox process of

Rui Lu, Wei Chen, Wen-Wei Li, Guo-Ping Sheng, Lian-Jun Wang, Han-Qing Yu

Journal Article

Comparison of masking agents for antimony speciation analysis using hydride generation atomic fluorescence

Jianhong XI,Mengchang HE,Kunpeng WANG,Guizhi ZHANG

Journal Article

Three-dimensional fluorescence spectral characterization of soil dissolved organic matters in the fluctuating

Fang FANG, Yan YANG, Jinsong GUO, Hong ZHOU, Chuan FU, Zhe LI

Journal Article

What have we known so far for fluorescence staining and quantification of microplastics: A tutorial review

Shengdong Liu, Enxiang Shang , Jingnan Liu , Yining Wang , Nanthi Bolan , M.B. Kirkham , Yang Li

Journal Article